bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 1 | /* |
Blue Swirl | 5b6dd86 | 2012-12-02 16:04:43 +0000 | [diff] [blame] | 2 | * Virtual page mapping |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3 | * |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 4 | * Copyright (c) 2003 Fabrice Bellard |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
Blue Swirl | 8167ee8 | 2009-07-16 20:47:01 +0000 | [diff] [blame] | 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 18 | */ |
bellard | 67b915a | 2004-03-31 23:37:16 +0000 | [diff] [blame] | 19 | #include "config.h" |
bellard | d5a8f07 | 2004-09-29 21:15:28 +0000 | [diff] [blame] | 20 | #ifdef _WIN32 |
| 21 | #include <windows.h> |
| 22 | #else |
bellard | a98d49b | 2004-11-14 16:22:05 +0000 | [diff] [blame] | 23 | #include <sys/types.h> |
bellard | d5a8f07 | 2004-09-29 21:15:28 +0000 | [diff] [blame] | 24 | #include <sys/mman.h> |
| 25 | #endif |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 26 | |
Stefan Weil | 055403b | 2010-10-22 23:03:32 +0200 | [diff] [blame] | 27 | #include "qemu-common.h" |
bellard | 6180a18 | 2003-09-30 21:04:53 +0000 | [diff] [blame] | 28 | #include "cpu.h" |
bellard | b67d9a5 | 2008-05-23 09:57:34 +0000 | [diff] [blame] | 29 | #include "tcg.h" |
pbrook | b3c7724 | 2008-06-30 16:31:04 +0000 | [diff] [blame] | 30 | #include "hw/hw.h" |
Alex Williamson | cc9e98c | 2010-06-25 11:09:43 -0600 | [diff] [blame] | 31 | #include "hw/qdev.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 32 | #include "qemu/osdep.h" |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame] | 33 | #include "sysemu/kvm.h" |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 34 | #include "hw/xen.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 35 | #include "qemu/timer.h" |
| 36 | #include "qemu/config-file.h" |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 37 | #include "exec/memory.h" |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame] | 38 | #include "sysemu/dma.h" |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 39 | #include "exec/address-spaces.h" |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 40 | #if defined(CONFIG_USER_ONLY) |
| 41 | #include <qemu.h> |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 42 | #else /* !CONFIG_USER_ONLY */ |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame] | 43 | #include "sysemu/xen-mapcache.h" |
Stefano Stabellini | 6506e4f | 2011-05-19 18:35:44 +0100 | [diff] [blame] | 44 | #include "trace.h" |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 45 | #endif |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 46 | #include "exec/cpu-all.h" |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 47 | |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 48 | #include "exec/cputlb.h" |
Blue Swirl | 5b6dd86 | 2012-12-02 16:04:43 +0000 | [diff] [blame] | 49 | #include "translate-all.h" |
Blue Swirl | 0cac1b6 | 2012-04-09 16:50:52 +0000 | [diff] [blame] | 50 | |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 51 | #include "exec/memory-internal.h" |
Avi Kivity | 67d95c1 | 2011-12-15 15:25:22 +0200 | [diff] [blame] | 52 | |
pbrook | 67d3b95 | 2006-12-18 05:03:52 +0000 | [diff] [blame] | 53 | //#define DEBUG_UNASSIGNED |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 54 | //#define DEBUG_SUBPAGE |
ths | 1196be3 | 2007-03-17 15:17:58 +0000 | [diff] [blame] | 55 | |
pbrook | 99773bd | 2006-04-16 15:14:59 +0000 | [diff] [blame] | 56 | #if !defined(CONFIG_USER_ONLY) |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 57 | int phys_ram_fd; |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 58 | static int in_migration; |
pbrook | 94a6b54 | 2009-04-11 17:15:54 +0000 | [diff] [blame] | 59 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 60 | RAMList ram_list = { .blocks = QTAILQ_HEAD_INITIALIZER(ram_list.blocks) }; |
Avi Kivity | 62152b8 | 2011-07-26 14:26:14 +0300 | [diff] [blame] | 61 | |
| 62 | static MemoryRegion *system_memory; |
Avi Kivity | 309cb47 | 2011-08-08 16:09:03 +0300 | [diff] [blame] | 63 | static MemoryRegion *system_io; |
Avi Kivity | 62152b8 | 2011-07-26 14:26:14 +0300 | [diff] [blame] | 64 | |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 65 | AddressSpace address_space_io; |
| 66 | AddressSpace address_space_memory; |
Peter Maydell | 9e11908 | 2012-10-29 11:34:32 +1000 | [diff] [blame] | 67 | DMAContext dma_context_memory; |
Avi Kivity | 2673a5d | 2012-10-02 18:49:28 +0200 | [diff] [blame] | 68 | |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 69 | MemoryRegion io_mem_ram, io_mem_rom, io_mem_unassigned, io_mem_notdirty; |
Avi Kivity | de712f9 | 2012-01-02 12:41:07 +0200 | [diff] [blame] | 70 | static MemoryRegion io_mem_subpage_ram; |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 71 | |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 72 | #endif |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 73 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 74 | CPUArchState *first_cpu; |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 75 | /* current CPU in the current thread. It is only valid inside |
| 76 | cpu_exec() */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 77 | DEFINE_TLS(CPUArchState *,cpu_single_env); |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 78 | /* 0 = Do not count executed instructions. |
ths | bf20dc0 | 2008-06-30 17:22:19 +0000 | [diff] [blame] | 79 | 1 = Precise instruction counting. |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 80 | 2 = Adaptive rate instruction counting. */ |
Paolo Bonzini | 5708fc6 | 2012-11-26 15:36:40 +0100 | [diff] [blame] | 81 | int use_icount; |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 82 | |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 83 | #if !defined(CONFIG_USER_ONLY) |
Avi Kivity | 4346ae3 | 2012-02-10 17:00:01 +0200 | [diff] [blame] | 84 | |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 85 | static MemoryRegionSection *phys_sections; |
| 86 | static unsigned phys_sections_nb, phys_sections_nb_alloc; |
| 87 | static uint16_t phys_section_unassigned; |
Avi Kivity | aa10223 | 2012-03-08 17:06:55 +0200 | [diff] [blame] | 88 | static uint16_t phys_section_notdirty; |
| 89 | static uint16_t phys_section_rom; |
| 90 | static uint16_t phys_section_watch; |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 91 | |
Avi Kivity | d6f2ea2 | 2012-02-12 20:12:49 +0200 | [diff] [blame] | 92 | /* Simple allocator for PhysPageEntry nodes */ |
| 93 | static PhysPageEntry (*phys_map_nodes)[L2_SIZE]; |
| 94 | static unsigned phys_map_nodes_nb, phys_map_nodes_nb_alloc; |
| 95 | |
Avi Kivity | 07f07b3 | 2012-02-13 20:45:32 +0200 | [diff] [blame] | 96 | #define PHYS_MAP_NODE_NIL (((uint16_t)~0) >> 1) |
Avi Kivity | d6f2ea2 | 2012-02-12 20:12:49 +0200 | [diff] [blame] | 97 | |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 98 | static void io_mem_init(void); |
Avi Kivity | 62152b8 | 2011-07-26 14:26:14 +0300 | [diff] [blame] | 99 | static void memory_map_init(void); |
Blue Swirl | 8b9c99d | 2012-10-28 11:04:51 +0000 | [diff] [blame] | 100 | static void *qemu_safe_ram_ptr(ram_addr_t addr); |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 101 | |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 102 | static MemoryRegion io_mem_watch; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 103 | #endif |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 104 | |
Paul Brook | 6d9a130 | 2010-02-28 23:55:53 +0000 | [diff] [blame] | 105 | #if !defined(CONFIG_USER_ONLY) |
Avi Kivity | d6f2ea2 | 2012-02-12 20:12:49 +0200 | [diff] [blame] | 106 | |
Avi Kivity | f7bf546 | 2012-02-13 20:12:05 +0200 | [diff] [blame] | 107 | static void phys_map_node_reserve(unsigned nodes) |
| 108 | { |
| 109 | if (phys_map_nodes_nb + nodes > phys_map_nodes_nb_alloc) { |
| 110 | typedef PhysPageEntry Node[L2_SIZE]; |
| 111 | phys_map_nodes_nb_alloc = MAX(phys_map_nodes_nb_alloc * 2, 16); |
| 112 | phys_map_nodes_nb_alloc = MAX(phys_map_nodes_nb_alloc, |
| 113 | phys_map_nodes_nb + nodes); |
| 114 | phys_map_nodes = g_renew(Node, phys_map_nodes, |
| 115 | phys_map_nodes_nb_alloc); |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | static uint16_t phys_map_node_alloc(void) |
Avi Kivity | d6f2ea2 | 2012-02-12 20:12:49 +0200 | [diff] [blame] | 120 | { |
| 121 | unsigned i; |
| 122 | uint16_t ret; |
| 123 | |
Avi Kivity | f7bf546 | 2012-02-13 20:12:05 +0200 | [diff] [blame] | 124 | ret = phys_map_nodes_nb++; |
Avi Kivity | d6f2ea2 | 2012-02-12 20:12:49 +0200 | [diff] [blame] | 125 | assert(ret != PHYS_MAP_NODE_NIL); |
Avi Kivity | f7bf546 | 2012-02-13 20:12:05 +0200 | [diff] [blame] | 126 | assert(ret != phys_map_nodes_nb_alloc); |
Avi Kivity | d6f2ea2 | 2012-02-12 20:12:49 +0200 | [diff] [blame] | 127 | for (i = 0; i < L2_SIZE; ++i) { |
Avi Kivity | 07f07b3 | 2012-02-13 20:45:32 +0200 | [diff] [blame] | 128 | phys_map_nodes[ret][i].is_leaf = 0; |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 129 | phys_map_nodes[ret][i].ptr = PHYS_MAP_NODE_NIL; |
Avi Kivity | d6f2ea2 | 2012-02-12 20:12:49 +0200 | [diff] [blame] | 130 | } |
Avi Kivity | f7bf546 | 2012-02-13 20:12:05 +0200 | [diff] [blame] | 131 | return ret; |
Avi Kivity | d6f2ea2 | 2012-02-12 20:12:49 +0200 | [diff] [blame] | 132 | } |
| 133 | |
| 134 | static void phys_map_nodes_reset(void) |
| 135 | { |
| 136 | phys_map_nodes_nb = 0; |
| 137 | } |
| 138 | |
Avi Kivity | f7bf546 | 2012-02-13 20:12:05 +0200 | [diff] [blame] | 139 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 140 | static void phys_page_set_level(PhysPageEntry *lp, hwaddr *index, |
| 141 | hwaddr *nb, uint16_t leaf, |
Avi Kivity | 2999097 | 2012-02-13 20:21:20 +0200 | [diff] [blame] | 142 | int level) |
Avi Kivity | f7bf546 | 2012-02-13 20:12:05 +0200 | [diff] [blame] | 143 | { |
| 144 | PhysPageEntry *p; |
| 145 | int i; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 146 | hwaddr step = (hwaddr)1 << (level * L2_BITS); |
Avi Kivity | f7bf546 | 2012-02-13 20:12:05 +0200 | [diff] [blame] | 147 | |
Avi Kivity | 07f07b3 | 2012-02-13 20:45:32 +0200 | [diff] [blame] | 148 | if (!lp->is_leaf && lp->ptr == PHYS_MAP_NODE_NIL) { |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 149 | lp->ptr = phys_map_node_alloc(); |
| 150 | p = phys_map_nodes[lp->ptr]; |
Avi Kivity | f7bf546 | 2012-02-13 20:12:05 +0200 | [diff] [blame] | 151 | if (level == 0) { |
| 152 | for (i = 0; i < L2_SIZE; i++) { |
Avi Kivity | 07f07b3 | 2012-02-13 20:45:32 +0200 | [diff] [blame] | 153 | p[i].is_leaf = 1; |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 154 | p[i].ptr = phys_section_unassigned; |
Avi Kivity | f7bf546 | 2012-02-13 20:12:05 +0200 | [diff] [blame] | 155 | } |
| 156 | } |
| 157 | } else { |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 158 | p = phys_map_nodes[lp->ptr]; |
Avi Kivity | f7bf546 | 2012-02-13 20:12:05 +0200 | [diff] [blame] | 159 | } |
Avi Kivity | 2999097 | 2012-02-13 20:21:20 +0200 | [diff] [blame] | 160 | lp = &p[(*index >> (level * L2_BITS)) & (L2_SIZE - 1)]; |
Avi Kivity | f7bf546 | 2012-02-13 20:12:05 +0200 | [diff] [blame] | 161 | |
Avi Kivity | 2999097 | 2012-02-13 20:21:20 +0200 | [diff] [blame] | 162 | while (*nb && lp < &p[L2_SIZE]) { |
Avi Kivity | 07f07b3 | 2012-02-13 20:45:32 +0200 | [diff] [blame] | 163 | if ((*index & (step - 1)) == 0 && *nb >= step) { |
| 164 | lp->is_leaf = true; |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 165 | lp->ptr = leaf; |
Avi Kivity | 07f07b3 | 2012-02-13 20:45:32 +0200 | [diff] [blame] | 166 | *index += step; |
| 167 | *nb -= step; |
Avi Kivity | 2999097 | 2012-02-13 20:21:20 +0200 | [diff] [blame] | 168 | } else { |
| 169 | phys_page_set_level(lp, index, nb, leaf, level - 1); |
| 170 | } |
| 171 | ++lp; |
Avi Kivity | f7bf546 | 2012-02-13 20:12:05 +0200 | [diff] [blame] | 172 | } |
| 173 | } |
| 174 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 175 | static void phys_page_set(AddressSpaceDispatch *d, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 176 | hwaddr index, hwaddr nb, |
Avi Kivity | 2999097 | 2012-02-13 20:21:20 +0200 | [diff] [blame] | 177 | uint16_t leaf) |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 178 | { |
Avi Kivity | 2999097 | 2012-02-13 20:21:20 +0200 | [diff] [blame] | 179 | /* Wildly overreserve - it doesn't matter much. */ |
Avi Kivity | 07f07b3 | 2012-02-13 20:45:32 +0200 | [diff] [blame] | 180 | phys_map_node_reserve(3 * P_L2_LEVELS); |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 181 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 182 | phys_page_set_level(&d->phys_map, &index, &nb, leaf, P_L2_LEVELS - 1); |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 183 | } |
| 184 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 185 | MemoryRegionSection *phys_page_find(AddressSpaceDispatch *d, hwaddr index) |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 186 | { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 187 | PhysPageEntry lp = d->phys_map; |
Avi Kivity | 31ab2b4 | 2012-02-13 16:44:19 +0200 | [diff] [blame] | 188 | PhysPageEntry *p; |
| 189 | int i; |
Avi Kivity | 31ab2b4 | 2012-02-13 16:44:19 +0200 | [diff] [blame] | 190 | uint16_t s_index = phys_section_unassigned; |
Avi Kivity | f1f6e3b | 2011-11-20 17:52:22 +0200 | [diff] [blame] | 191 | |
Avi Kivity | 07f07b3 | 2012-02-13 20:45:32 +0200 | [diff] [blame] | 192 | for (i = P_L2_LEVELS - 1; i >= 0 && !lp.is_leaf; i--) { |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 193 | if (lp.ptr == PHYS_MAP_NODE_NIL) { |
Avi Kivity | 31ab2b4 | 2012-02-13 16:44:19 +0200 | [diff] [blame] | 194 | goto not_found; |
| 195 | } |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 196 | p = phys_map_nodes[lp.ptr]; |
Avi Kivity | 31ab2b4 | 2012-02-13 16:44:19 +0200 | [diff] [blame] | 197 | lp = p[(index >> (i * L2_BITS)) & (L2_SIZE - 1)]; |
Avi Kivity | f1f6e3b | 2011-11-20 17:52:22 +0200 | [diff] [blame] | 198 | } |
Avi Kivity | 31ab2b4 | 2012-02-13 16:44:19 +0200 | [diff] [blame] | 199 | |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 200 | s_index = lp.ptr; |
Avi Kivity | 31ab2b4 | 2012-02-13 16:44:19 +0200 | [diff] [blame] | 201 | not_found: |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 202 | return &phys_sections[s_index]; |
| 203 | } |
| 204 | |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 205 | bool memory_region_is_unassigned(MemoryRegion *mr) |
| 206 | { |
| 207 | return mr != &io_mem_ram && mr != &io_mem_rom |
| 208 | && mr != &io_mem_notdirty && !mr->rom_device |
| 209 | && mr != &io_mem_watch; |
| 210 | } |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 211 | #endif |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 212 | |
Jan Kiszka | d5ab971 | 2011-08-02 16:10:21 +0200 | [diff] [blame] | 213 | void cpu_exec_init_all(void) |
| 214 | { |
| 215 | #if !defined(CONFIG_USER_ONLY) |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 216 | qemu_mutex_init(&ram_list.mutex); |
Jan Kiszka | d5ab971 | 2011-08-02 16:10:21 +0200 | [diff] [blame] | 217 | memory_map_init(); |
| 218 | io_mem_init(); |
| 219 | #endif |
| 220 | } |
| 221 | |
Andreas Färber | b170fce | 2013-01-20 20:23:22 +0100 | [diff] [blame] | 222 | #if !defined(CONFIG_USER_ONLY) |
pbrook | 9656f32 | 2008-07-01 20:01:19 +0000 | [diff] [blame] | 223 | |
Juan Quintela | e59fb37 | 2009-09-29 22:48:21 +0200 | [diff] [blame] | 224 | static int cpu_common_post_load(void *opaque, int version_id) |
Juan Quintela | e7f4eff | 2009-09-10 03:04:33 +0200 | [diff] [blame] | 225 | { |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 226 | CPUState *cpu = opaque; |
Juan Quintela | e7f4eff | 2009-09-10 03:04:33 +0200 | [diff] [blame] | 227 | |
aurel32 | 3098dba | 2009-03-07 21:28:24 +0000 | [diff] [blame] | 228 | /* 0x01 was CPU_INTERRUPT_EXIT. This line can be removed when the |
| 229 | version_id is increased. */ |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 230 | cpu->interrupt_request &= ~0x01; |
| 231 | tlb_flush(cpu->env_ptr, 1); |
pbrook | 9656f32 | 2008-07-01 20:01:19 +0000 | [diff] [blame] | 232 | |
| 233 | return 0; |
| 234 | } |
Juan Quintela | e7f4eff | 2009-09-10 03:04:33 +0200 | [diff] [blame] | 235 | |
| 236 | static const VMStateDescription vmstate_cpu_common = { |
| 237 | .name = "cpu_common", |
| 238 | .version_id = 1, |
| 239 | .minimum_version_id = 1, |
| 240 | .minimum_version_id_old = 1, |
Juan Quintela | e7f4eff | 2009-09-10 03:04:33 +0200 | [diff] [blame] | 241 | .post_load = cpu_common_post_load, |
| 242 | .fields = (VMStateField []) { |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 243 | VMSTATE_UINT32(halted, CPUState), |
| 244 | VMSTATE_UINT32(interrupt_request, CPUState), |
Juan Quintela | e7f4eff | 2009-09-10 03:04:33 +0200 | [diff] [blame] | 245 | VMSTATE_END_OF_LIST() |
| 246 | } |
| 247 | }; |
Andreas Färber | b170fce | 2013-01-20 20:23:22 +0100 | [diff] [blame] | 248 | #else |
| 249 | #define vmstate_cpu_common vmstate_dummy |
pbrook | 9656f32 | 2008-07-01 20:01:19 +0000 | [diff] [blame] | 250 | #endif |
| 251 | |
Andreas Färber | 38d8f5c | 2012-12-17 19:47:15 +0100 | [diff] [blame] | 252 | CPUState *qemu_get_cpu(int index) |
Glauber Costa | 950f147 | 2009-06-09 12:15:18 -0400 | [diff] [blame] | 253 | { |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 254 | CPUArchState *env = first_cpu; |
Andreas Färber | 38d8f5c | 2012-12-17 19:47:15 +0100 | [diff] [blame] | 255 | CPUState *cpu = NULL; |
Glauber Costa | 950f147 | 2009-06-09 12:15:18 -0400 | [diff] [blame] | 256 | |
| 257 | while (env) { |
Andreas Färber | 55e5c28 | 2012-12-17 06:18:02 +0100 | [diff] [blame] | 258 | cpu = ENV_GET_CPU(env); |
| 259 | if (cpu->cpu_index == index) { |
Glauber Costa | 950f147 | 2009-06-09 12:15:18 -0400 | [diff] [blame] | 260 | break; |
Andreas Färber | 55e5c28 | 2012-12-17 06:18:02 +0100 | [diff] [blame] | 261 | } |
Glauber Costa | 950f147 | 2009-06-09 12:15:18 -0400 | [diff] [blame] | 262 | env = env->next_cpu; |
| 263 | } |
| 264 | |
Igor Mammedov | d76fdda | 2013-03-07 19:12:43 +0100 | [diff] [blame] | 265 | return env ? cpu : NULL; |
Glauber Costa | 950f147 | 2009-06-09 12:15:18 -0400 | [diff] [blame] | 266 | } |
| 267 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 268 | void cpu_exec_init(CPUArchState *env) |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 269 | { |
Andreas Färber | 9f09e18 | 2012-05-03 06:59:07 +0200 | [diff] [blame] | 270 | CPUState *cpu = ENV_GET_CPU(env); |
Andreas Färber | b170fce | 2013-01-20 20:23:22 +0100 | [diff] [blame] | 271 | CPUClass *cc = CPU_GET_CLASS(cpu); |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 272 | CPUArchState **penv; |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 273 | int cpu_index; |
| 274 | |
pbrook | c276471 | 2009-03-07 15:24:59 +0000 | [diff] [blame] | 275 | #if defined(CONFIG_USER_ONLY) |
| 276 | cpu_list_lock(); |
| 277 | #endif |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 278 | env->next_cpu = NULL; |
| 279 | penv = &first_cpu; |
| 280 | cpu_index = 0; |
| 281 | while (*penv != NULL) { |
Nathan Froyd | 1e9fa73 | 2009-06-03 11:33:08 -0700 | [diff] [blame] | 282 | penv = &(*penv)->next_cpu; |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 283 | cpu_index++; |
| 284 | } |
Andreas Färber | 55e5c28 | 2012-12-17 06:18:02 +0100 | [diff] [blame] | 285 | cpu->cpu_index = cpu_index; |
Andreas Färber | 1b1ed8d | 2012-12-17 04:22:03 +0100 | [diff] [blame] | 286 | cpu->numa_node = 0; |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 287 | QTAILQ_INIT(&env->breakpoints); |
| 288 | QTAILQ_INIT(&env->watchpoints); |
Jan Kiszka | dc7a09c | 2011-03-15 12:26:31 +0100 | [diff] [blame] | 289 | #ifndef CONFIG_USER_ONLY |
Andreas Färber | 9f09e18 | 2012-05-03 06:59:07 +0200 | [diff] [blame] | 290 | cpu->thread_id = qemu_get_thread_id(); |
Jan Kiszka | dc7a09c | 2011-03-15 12:26:31 +0100 | [diff] [blame] | 291 | #endif |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 292 | *penv = env; |
pbrook | c276471 | 2009-03-07 15:24:59 +0000 | [diff] [blame] | 293 | #if defined(CONFIG_USER_ONLY) |
| 294 | cpu_list_unlock(); |
| 295 | #endif |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 296 | vmstate_register(NULL, cpu_index, &vmstate_cpu_common, cpu); |
pbrook | b3c7724 | 2008-06-30 16:31:04 +0000 | [diff] [blame] | 297 | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY) |
Alex Williamson | 0be71e3 | 2010-06-25 11:09:07 -0600 | [diff] [blame] | 298 | register_savevm(NULL, "cpu", cpu_index, CPU_SAVE_VERSION, |
pbrook | b3c7724 | 2008-06-30 16:31:04 +0000 | [diff] [blame] | 299 | cpu_save, cpu_load, env); |
Andreas Färber | b170fce | 2013-01-20 20:23:22 +0100 | [diff] [blame] | 300 | assert(cc->vmsd == NULL); |
pbrook | b3c7724 | 2008-06-30 16:31:04 +0000 | [diff] [blame] | 301 | #endif |
Andreas Färber | b170fce | 2013-01-20 20:23:22 +0100 | [diff] [blame] | 302 | if (cc->vmsd != NULL) { |
| 303 | vmstate_register(NULL, cpu_index, cc->vmsd, cpu); |
| 304 | } |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 305 | } |
| 306 | |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 307 | #if defined(TARGET_HAS_ICE) |
Paul Brook | 94df27f | 2010-02-28 23:47:45 +0000 | [diff] [blame] | 308 | #if defined(CONFIG_USER_ONLY) |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 309 | static void breakpoint_invalidate(CPUArchState *env, target_ulong pc) |
Paul Brook | 94df27f | 2010-02-28 23:47:45 +0000 | [diff] [blame] | 310 | { |
| 311 | tb_invalidate_phys_page_range(pc, pc + 1, 0); |
| 312 | } |
| 313 | #else |
Max Filippov | 1e7855a | 2012-04-10 02:48:17 +0400 | [diff] [blame] | 314 | static void breakpoint_invalidate(CPUArchState *env, target_ulong pc) |
| 315 | { |
Max Filippov | 9d70c4b | 2012-05-27 20:21:08 +0400 | [diff] [blame] | 316 | tb_invalidate_phys_addr(cpu_get_phys_page_debug(env, pc) | |
| 317 | (pc & ~TARGET_PAGE_MASK)); |
Max Filippov | 1e7855a | 2012-04-10 02:48:17 +0400 | [diff] [blame] | 318 | } |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 319 | #endif |
Paul Brook | 94df27f | 2010-02-28 23:47:45 +0000 | [diff] [blame] | 320 | #endif /* TARGET_HAS_ICE */ |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 321 | |
Paul Brook | c527ee8 | 2010-03-01 03:31:14 +0000 | [diff] [blame] | 322 | #if defined(CONFIG_USER_ONLY) |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 323 | void cpu_watchpoint_remove_all(CPUArchState *env, int mask) |
Paul Brook | c527ee8 | 2010-03-01 03:31:14 +0000 | [diff] [blame] | 324 | |
| 325 | { |
| 326 | } |
| 327 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 328 | int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len, |
Paul Brook | c527ee8 | 2010-03-01 03:31:14 +0000 | [diff] [blame] | 329 | int flags, CPUWatchpoint **watchpoint) |
| 330 | { |
| 331 | return -ENOSYS; |
| 332 | } |
| 333 | #else |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 334 | /* Add a watchpoint. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 335 | int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len, |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 336 | int flags, CPUWatchpoint **watchpoint) |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 337 | { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 338 | target_ulong len_mask = ~(len - 1); |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 339 | CPUWatchpoint *wp; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 340 | |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 341 | /* sanity checks: allow power-of-2 lengths, deny unaligned watchpoints */ |
Max Filippov | 0dc2382 | 2012-01-29 03:15:23 +0400 | [diff] [blame] | 342 | if ((len & (len - 1)) || (addr & ~len_mask) || |
| 343 | len == 0 || len > TARGET_PAGE_SIZE) { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 344 | fprintf(stderr, "qemu: tried to set invalid watchpoint at " |
| 345 | TARGET_FMT_lx ", len=" TARGET_FMT_lu "\n", addr, len); |
| 346 | return -EINVAL; |
| 347 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 348 | wp = g_malloc(sizeof(*wp)); |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 349 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 350 | wp->vaddr = addr; |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 351 | wp->len_mask = len_mask; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 352 | wp->flags = flags; |
| 353 | |
aliguori | 2dc9f41 | 2008-11-18 20:56:59 +0000 | [diff] [blame] | 354 | /* keep all GDB-injected watchpoints in front */ |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 355 | if (flags & BP_GDB) |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 356 | QTAILQ_INSERT_HEAD(&env->watchpoints, wp, entry); |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 357 | else |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 358 | QTAILQ_INSERT_TAIL(&env->watchpoints, wp, entry); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 359 | |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 360 | tlb_flush_page(env, addr); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 361 | |
| 362 | if (watchpoint) |
| 363 | *watchpoint = wp; |
| 364 | return 0; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 365 | } |
| 366 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 367 | /* Remove a specific watchpoint. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 368 | int cpu_watchpoint_remove(CPUArchState *env, target_ulong addr, target_ulong len, |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 369 | int flags) |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 370 | { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 371 | target_ulong len_mask = ~(len - 1); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 372 | CPUWatchpoint *wp; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 373 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 374 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 375 | if (addr == wp->vaddr && len_mask == wp->len_mask |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 376 | && flags == (wp->flags & ~BP_WATCHPOINT_HIT)) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 377 | cpu_watchpoint_remove_by_ref(env, wp); |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 378 | return 0; |
| 379 | } |
| 380 | } |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 381 | return -ENOENT; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 382 | } |
| 383 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 384 | /* Remove a specific watchpoint by reference. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 385 | void cpu_watchpoint_remove_by_ref(CPUArchState *env, CPUWatchpoint *watchpoint) |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 386 | { |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 387 | QTAILQ_REMOVE(&env->watchpoints, watchpoint, entry); |
edgar_igl | 7d03f82 | 2008-05-17 18:58:29 +0000 | [diff] [blame] | 388 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 389 | tlb_flush_page(env, watchpoint->vaddr); |
| 390 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 391 | g_free(watchpoint); |
edgar_igl | 7d03f82 | 2008-05-17 18:58:29 +0000 | [diff] [blame] | 392 | } |
| 393 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 394 | /* Remove all matching watchpoints. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 395 | void cpu_watchpoint_remove_all(CPUArchState *env, int mask) |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 396 | { |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 397 | CPUWatchpoint *wp, *next; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 398 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 399 | QTAILQ_FOREACH_SAFE(wp, &env->watchpoints, entry, next) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 400 | if (wp->flags & mask) |
| 401 | cpu_watchpoint_remove_by_ref(env, wp); |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 402 | } |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 403 | } |
Paul Brook | c527ee8 | 2010-03-01 03:31:14 +0000 | [diff] [blame] | 404 | #endif |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 405 | |
| 406 | /* Add a breakpoint. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 407 | int cpu_breakpoint_insert(CPUArchState *env, target_ulong pc, int flags, |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 408 | CPUBreakpoint **breakpoint) |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 409 | { |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 410 | #if defined(TARGET_HAS_ICE) |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 411 | CPUBreakpoint *bp; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 412 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 413 | bp = g_malloc(sizeof(*bp)); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 414 | |
| 415 | bp->pc = pc; |
| 416 | bp->flags = flags; |
| 417 | |
aliguori | 2dc9f41 | 2008-11-18 20:56:59 +0000 | [diff] [blame] | 418 | /* keep all GDB-injected breakpoints in front */ |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 419 | if (flags & BP_GDB) |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 420 | QTAILQ_INSERT_HEAD(&env->breakpoints, bp, entry); |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 421 | else |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 422 | QTAILQ_INSERT_TAIL(&env->breakpoints, bp, entry); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 423 | |
| 424 | breakpoint_invalidate(env, pc); |
| 425 | |
| 426 | if (breakpoint) |
| 427 | *breakpoint = bp; |
| 428 | return 0; |
| 429 | #else |
| 430 | return -ENOSYS; |
| 431 | #endif |
| 432 | } |
| 433 | |
| 434 | /* Remove a specific breakpoint. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 435 | int cpu_breakpoint_remove(CPUArchState *env, target_ulong pc, int flags) |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 436 | { |
| 437 | #if defined(TARGET_HAS_ICE) |
| 438 | CPUBreakpoint *bp; |
| 439 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 440 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 441 | if (bp->pc == pc && bp->flags == flags) { |
| 442 | cpu_breakpoint_remove_by_ref(env, bp); |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 443 | return 0; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 444 | } |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 445 | } |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 446 | return -ENOENT; |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 447 | #else |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 448 | return -ENOSYS; |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 449 | #endif |
| 450 | } |
| 451 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 452 | /* Remove a specific breakpoint by reference. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 453 | void cpu_breakpoint_remove_by_ref(CPUArchState *env, CPUBreakpoint *breakpoint) |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 454 | { |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 455 | #if defined(TARGET_HAS_ICE) |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 456 | QTAILQ_REMOVE(&env->breakpoints, breakpoint, entry); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 457 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 458 | breakpoint_invalidate(env, breakpoint->pc); |
| 459 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 460 | g_free(breakpoint); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 461 | #endif |
| 462 | } |
| 463 | |
| 464 | /* Remove all matching breakpoints. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 465 | void cpu_breakpoint_remove_all(CPUArchState *env, int mask) |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 466 | { |
| 467 | #if defined(TARGET_HAS_ICE) |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 468 | CPUBreakpoint *bp, *next; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 469 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 470 | QTAILQ_FOREACH_SAFE(bp, &env->breakpoints, entry, next) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 471 | if (bp->flags & mask) |
| 472 | cpu_breakpoint_remove_by_ref(env, bp); |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 473 | } |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 474 | #endif |
| 475 | } |
| 476 | |
bellard | c33a346 | 2003-07-29 20:50:33 +0000 | [diff] [blame] | 477 | /* enable or disable single step mode. EXCP_DEBUG is returned by the |
| 478 | CPU loop after each instruction */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 479 | void cpu_single_step(CPUArchState *env, int enabled) |
bellard | c33a346 | 2003-07-29 20:50:33 +0000 | [diff] [blame] | 480 | { |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 481 | #if defined(TARGET_HAS_ICE) |
bellard | c33a346 | 2003-07-29 20:50:33 +0000 | [diff] [blame] | 482 | if (env->singlestep_enabled != enabled) { |
| 483 | env->singlestep_enabled = enabled; |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 484 | if (kvm_enabled()) |
| 485 | kvm_update_guest_debug(env, 0); |
| 486 | else { |
Stuart Brady | ccbb4d4 | 2009-05-03 12:15:06 +0100 | [diff] [blame] | 487 | /* must flush all the translated code to avoid inconsistencies */ |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 488 | /* XXX: only flush what is necessary */ |
| 489 | tb_flush(env); |
| 490 | } |
bellard | c33a346 | 2003-07-29 20:50:33 +0000 | [diff] [blame] | 491 | } |
| 492 | #endif |
| 493 | } |
| 494 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 495 | void cpu_exit(CPUArchState *env) |
aurel32 | 3098dba | 2009-03-07 21:28:24 +0000 | [diff] [blame] | 496 | { |
Andreas Färber | fcd7d00 | 2012-12-17 08:02:44 +0100 | [diff] [blame] | 497 | CPUState *cpu = ENV_GET_CPU(env); |
| 498 | |
| 499 | cpu->exit_request = 1; |
Peter Maydell | 378df4b | 2013-02-22 18:10:03 +0000 | [diff] [blame] | 500 | cpu->tcg_exit_req = 1; |
aurel32 | 3098dba | 2009-03-07 21:28:24 +0000 | [diff] [blame] | 501 | } |
| 502 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 503 | void cpu_abort(CPUArchState *env, const char *fmt, ...) |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 504 | { |
| 505 | va_list ap; |
pbrook | 493ae1f | 2007-11-23 16:53:59 +0000 | [diff] [blame] | 506 | va_list ap2; |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 507 | |
| 508 | va_start(ap, fmt); |
pbrook | 493ae1f | 2007-11-23 16:53:59 +0000 | [diff] [blame] | 509 | va_copy(ap2, ap); |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 510 | fprintf(stderr, "qemu: fatal: "); |
| 511 | vfprintf(stderr, fmt, ap); |
| 512 | fprintf(stderr, "\n"); |
Peter Maydell | 6fd2a02 | 2012-10-05 15:04:43 +0100 | [diff] [blame] | 513 | cpu_dump_state(env, stderr, fprintf, CPU_DUMP_FPU | CPU_DUMP_CCOP); |
aliguori | 93fcfe3 | 2009-01-15 22:34:14 +0000 | [diff] [blame] | 514 | if (qemu_log_enabled()) { |
| 515 | qemu_log("qemu: fatal: "); |
| 516 | qemu_log_vprintf(fmt, ap2); |
| 517 | qemu_log("\n"); |
Peter Maydell | 6fd2a02 | 2012-10-05 15:04:43 +0100 | [diff] [blame] | 518 | log_cpu_state(env, CPU_DUMP_FPU | CPU_DUMP_CCOP); |
aliguori | 31b1a7b | 2009-01-15 22:35:09 +0000 | [diff] [blame] | 519 | qemu_log_flush(); |
aliguori | 93fcfe3 | 2009-01-15 22:34:14 +0000 | [diff] [blame] | 520 | qemu_log_close(); |
balrog | 924edca | 2007-06-10 14:07:13 +0000 | [diff] [blame] | 521 | } |
pbrook | 493ae1f | 2007-11-23 16:53:59 +0000 | [diff] [blame] | 522 | va_end(ap2); |
j_mayer | f937329 | 2007-09-29 12:18:20 +0000 | [diff] [blame] | 523 | va_end(ap); |
Riku Voipio | fd052bf | 2010-01-25 14:30:49 +0200 | [diff] [blame] | 524 | #if defined(CONFIG_USER_ONLY) |
| 525 | { |
| 526 | struct sigaction act; |
| 527 | sigfillset(&act.sa_mask); |
| 528 | act.sa_handler = SIG_DFL; |
| 529 | sigaction(SIGABRT, &act, NULL); |
| 530 | } |
| 531 | #endif |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 532 | abort(); |
| 533 | } |
| 534 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 535 | CPUArchState *cpu_copy(CPUArchState *env) |
ths | c5be9f0 | 2007-02-28 20:20:53 +0000 | [diff] [blame] | 536 | { |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 537 | CPUArchState *new_env = cpu_init(env->cpu_model_str); |
| 538 | CPUArchState *next_cpu = new_env->next_cpu; |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 539 | #if defined(TARGET_HAS_ICE) |
| 540 | CPUBreakpoint *bp; |
| 541 | CPUWatchpoint *wp; |
| 542 | #endif |
| 543 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 544 | memcpy(new_env, env, sizeof(CPUArchState)); |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 545 | |
Andreas Färber | 55e5c28 | 2012-12-17 06:18:02 +0100 | [diff] [blame] | 546 | /* Preserve chaining. */ |
ths | c5be9f0 | 2007-02-28 20:20:53 +0000 | [diff] [blame] | 547 | new_env->next_cpu = next_cpu; |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 548 | |
| 549 | /* Clone all break/watchpoints. |
| 550 | Note: Once we support ptrace with hw-debug register access, make sure |
| 551 | BP_CPU break/watchpoints are handled correctly on clone. */ |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 552 | QTAILQ_INIT(&env->breakpoints); |
| 553 | QTAILQ_INIT(&env->watchpoints); |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 554 | #if defined(TARGET_HAS_ICE) |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 555 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 556 | cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL); |
| 557 | } |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 558 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 559 | cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1, |
| 560 | wp->flags, NULL); |
| 561 | } |
| 562 | #endif |
| 563 | |
ths | c5be9f0 | 2007-02-28 20:20:53 +0000 | [diff] [blame] | 564 | return new_env; |
| 565 | } |
| 566 | |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 567 | #if !defined(CONFIG_USER_ONLY) |
Juan Quintela | d24981d | 2012-05-22 00:42:40 +0200 | [diff] [blame] | 568 | static void tlb_reset_dirty_range_all(ram_addr_t start, ram_addr_t end, |
| 569 | uintptr_t length) |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 570 | { |
Juan Quintela | d24981d | 2012-05-22 00:42:40 +0200 | [diff] [blame] | 571 | uintptr_t start1; |
bellard | f23db16 | 2005-08-21 19:12:28 +0000 | [diff] [blame] | 572 | |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 573 | /* we modify the TLB cache so that the dirty bit will be set again |
| 574 | when accessing the range */ |
Stefan Weil | 8efe0ca | 2012-04-12 15:42:19 +0200 | [diff] [blame] | 575 | start1 = (uintptr_t)qemu_safe_ram_ptr(start); |
Stefan Weil | a57d23e | 2011-04-30 22:49:26 +0200 | [diff] [blame] | 576 | /* Check that we don't span multiple blocks - this breaks the |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 577 | address comparisons below. */ |
Stefan Weil | 8efe0ca | 2012-04-12 15:42:19 +0200 | [diff] [blame] | 578 | if ((uintptr_t)qemu_safe_ram_ptr(end - 1) - start1 |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 579 | != (end - 1) - start) { |
| 580 | abort(); |
| 581 | } |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 582 | cpu_tlb_reset_dirty_all(start1, length); |
Juan Quintela | d24981d | 2012-05-22 00:42:40 +0200 | [diff] [blame] | 583 | |
| 584 | } |
| 585 | |
| 586 | /* Note: start and end must be within the same ram block. */ |
| 587 | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end, |
| 588 | int dirty_flags) |
| 589 | { |
| 590 | uintptr_t length; |
| 591 | |
| 592 | start &= TARGET_PAGE_MASK; |
| 593 | end = TARGET_PAGE_ALIGN(end); |
| 594 | |
| 595 | length = end - start; |
| 596 | if (length == 0) |
| 597 | return; |
| 598 | cpu_physical_memory_mask_dirty_range(start, length, dirty_flags); |
| 599 | |
| 600 | if (tcg_enabled()) { |
| 601 | tlb_reset_dirty_range_all(start, end, length); |
| 602 | } |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 603 | } |
| 604 | |
Blue Swirl | 8b9c99d | 2012-10-28 11:04:51 +0000 | [diff] [blame] | 605 | static int cpu_physical_memory_set_dirty_tracking(int enable) |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 606 | { |
Michael S. Tsirkin | f6f3fbc | 2010-01-27 22:06:57 +0200 | [diff] [blame] | 607 | int ret = 0; |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 608 | in_migration = enable; |
Michael S. Tsirkin | f6f3fbc | 2010-01-27 22:06:57 +0200 | [diff] [blame] | 609 | return ret; |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 610 | } |
| 611 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 612 | hwaddr memory_region_section_get_iotlb(CPUArchState *env, |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 613 | MemoryRegionSection *section, |
| 614 | target_ulong vaddr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 615 | hwaddr paddr, |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 616 | int prot, |
| 617 | target_ulong *address) |
| 618 | { |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 619 | hwaddr iotlb; |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 620 | CPUWatchpoint *wp; |
| 621 | |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 622 | if (memory_region_is_ram(section->mr)) { |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 623 | /* Normal RAM. */ |
| 624 | iotlb = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 625 | + memory_region_section_addr(section, paddr); |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 626 | if (!section->readonly) { |
| 627 | iotlb |= phys_section_notdirty; |
| 628 | } else { |
| 629 | iotlb |= phys_section_rom; |
| 630 | } |
| 631 | } else { |
| 632 | /* IO handlers are currently passed a physical address. |
| 633 | It would be nice to pass an offset from the base address |
| 634 | of that region. This would avoid having to special case RAM, |
| 635 | and avoid full address decoding in every device. |
| 636 | We can't use the high bits of pd for this because |
| 637 | IO_MEM_ROMD uses these as a ram address. */ |
| 638 | iotlb = section - phys_sections; |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 639 | iotlb += memory_region_section_addr(section, paddr); |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 640 | } |
| 641 | |
| 642 | /* Make accesses to pages with watchpoints go via the |
| 643 | watchpoint trap routines. */ |
| 644 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
| 645 | if (vaddr == (wp->vaddr & TARGET_PAGE_MASK)) { |
| 646 | /* Avoid trapping reads of pages with a write breakpoint. */ |
| 647 | if ((prot & PAGE_WRITE) || (wp->flags & BP_MEM_READ)) { |
| 648 | iotlb = phys_section_watch + paddr; |
| 649 | *address |= TLB_MMIO; |
| 650 | break; |
| 651 | } |
| 652 | } |
| 653 | } |
| 654 | |
| 655 | return iotlb; |
| 656 | } |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 657 | #endif /* defined(CONFIG_USER_ONLY) */ |
| 658 | |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 659 | #if !defined(CONFIG_USER_ONLY) |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 660 | |
Paul Brook | c04b2b7 | 2010-03-01 03:31:14 +0000 | [diff] [blame] | 661 | #define SUBPAGE_IDX(addr) ((addr) & ~TARGET_PAGE_MASK) |
| 662 | typedef struct subpage_t { |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 663 | MemoryRegion iomem; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 664 | hwaddr base; |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 665 | uint16_t sub_section[TARGET_PAGE_SIZE]; |
Paul Brook | c04b2b7 | 2010-03-01 03:31:14 +0000 | [diff] [blame] | 666 | } subpage_t; |
| 667 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 668 | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 669 | uint16_t section); |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 670 | static subpage_t *subpage_init(hwaddr base); |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 671 | static void destroy_page_desc(uint16_t section_index) |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 672 | { |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 673 | MemoryRegionSection *section = &phys_sections[section_index]; |
| 674 | MemoryRegion *mr = section->mr; |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 675 | |
| 676 | if (mr->subpage) { |
| 677 | subpage_t *subpage = container_of(mr, subpage_t, iomem); |
| 678 | memory_region_destroy(&subpage->iomem); |
| 679 | g_free(subpage); |
| 680 | } |
| 681 | } |
| 682 | |
Avi Kivity | 4346ae3 | 2012-02-10 17:00:01 +0200 | [diff] [blame] | 683 | static void destroy_l2_mapping(PhysPageEntry *lp, unsigned level) |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 684 | { |
| 685 | unsigned i; |
Avi Kivity | d6f2ea2 | 2012-02-12 20:12:49 +0200 | [diff] [blame] | 686 | PhysPageEntry *p; |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 687 | |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 688 | if (lp->ptr == PHYS_MAP_NODE_NIL) { |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 689 | return; |
| 690 | } |
| 691 | |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 692 | p = phys_map_nodes[lp->ptr]; |
Avi Kivity | 4346ae3 | 2012-02-10 17:00:01 +0200 | [diff] [blame] | 693 | for (i = 0; i < L2_SIZE; ++i) { |
Avi Kivity | 07f07b3 | 2012-02-13 20:45:32 +0200 | [diff] [blame] | 694 | if (!p[i].is_leaf) { |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 695 | destroy_l2_mapping(&p[i], level - 1); |
Avi Kivity | 4346ae3 | 2012-02-10 17:00:01 +0200 | [diff] [blame] | 696 | } else { |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 697 | destroy_page_desc(p[i].ptr); |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 698 | } |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 699 | } |
Avi Kivity | 07f07b3 | 2012-02-13 20:45:32 +0200 | [diff] [blame] | 700 | lp->is_leaf = 0; |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 701 | lp->ptr = PHYS_MAP_NODE_NIL; |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 702 | } |
| 703 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 704 | static void destroy_all_mappings(AddressSpaceDispatch *d) |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 705 | { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 706 | destroy_l2_mapping(&d->phys_map, P_L2_LEVELS - 1); |
Avi Kivity | d6f2ea2 | 2012-02-12 20:12:49 +0200 | [diff] [blame] | 707 | phys_map_nodes_reset(); |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 708 | } |
| 709 | |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 710 | static uint16_t phys_section_add(MemoryRegionSection *section) |
| 711 | { |
| 712 | if (phys_sections_nb == phys_sections_nb_alloc) { |
| 713 | phys_sections_nb_alloc = MAX(phys_sections_nb_alloc * 2, 16); |
| 714 | phys_sections = g_renew(MemoryRegionSection, phys_sections, |
| 715 | phys_sections_nb_alloc); |
| 716 | } |
| 717 | phys_sections[phys_sections_nb] = *section; |
| 718 | return phys_sections_nb++; |
| 719 | } |
| 720 | |
| 721 | static void phys_sections_clear(void) |
| 722 | { |
| 723 | phys_sections_nb = 0; |
| 724 | } |
| 725 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 726 | static void register_subpage(AddressSpaceDispatch *d, MemoryRegionSection *section) |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 727 | { |
| 728 | subpage_t *subpage; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 729 | hwaddr base = section->offset_within_address_space |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 730 | & TARGET_PAGE_MASK; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 731 | MemoryRegionSection *existing = phys_page_find(d, base >> TARGET_PAGE_BITS); |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 732 | MemoryRegionSection subsection = { |
| 733 | .offset_within_address_space = base, |
| 734 | .size = TARGET_PAGE_SIZE, |
| 735 | }; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 736 | hwaddr start, end; |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 737 | |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 738 | assert(existing->mr->subpage || existing->mr == &io_mem_unassigned); |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 739 | |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 740 | if (!(existing->mr->subpage)) { |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 741 | subpage = subpage_init(base); |
| 742 | subsection.mr = &subpage->iomem; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 743 | phys_page_set(d, base >> TARGET_PAGE_BITS, 1, |
Avi Kivity | 2999097 | 2012-02-13 20:21:20 +0200 | [diff] [blame] | 744 | phys_section_add(&subsection)); |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 745 | } else { |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 746 | subpage = container_of(existing->mr, subpage_t, iomem); |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 747 | } |
| 748 | start = section->offset_within_address_space & ~TARGET_PAGE_MASK; |
Tyler Hall | adb2a9b | 2012-07-25 18:45:03 -0400 | [diff] [blame] | 749 | end = start + section->size - 1; |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 750 | subpage_register(subpage, start, end, phys_section_add(section)); |
| 751 | } |
| 752 | |
| 753 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 754 | static void register_multipage(AddressSpaceDispatch *d, MemoryRegionSection *section) |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 755 | { |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 756 | hwaddr start_addr = section->offset_within_address_space; |
Avi Kivity | dd81124 | 2012-01-02 12:17:03 +0200 | [diff] [blame] | 757 | ram_addr_t size = section->size; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 758 | hwaddr addr; |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 759 | uint16_t section_index = phys_section_add(section); |
Avi Kivity | dd81124 | 2012-01-02 12:17:03 +0200 | [diff] [blame] | 760 | |
Edgar E. Iglesias | 3b8e6a2 | 2011-04-05 13:00:36 +0200 | [diff] [blame] | 761 | assert(size); |
Michael S. Tsirkin | f6f3fbc | 2010-01-27 22:06:57 +0200 | [diff] [blame] | 762 | |
Edgar E. Iglesias | 3b8e6a2 | 2011-04-05 13:00:36 +0200 | [diff] [blame] | 763 | addr = start_addr; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 764 | phys_page_set(d, addr >> TARGET_PAGE_BITS, size >> TARGET_PAGE_BITS, |
Avi Kivity | 2999097 | 2012-02-13 20:21:20 +0200 | [diff] [blame] | 765 | section_index); |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 766 | } |
| 767 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 768 | static void mem_add(MemoryListener *listener, MemoryRegionSection *section) |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 769 | { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 770 | AddressSpaceDispatch *d = container_of(listener, AddressSpaceDispatch, listener); |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 771 | MemoryRegionSection now = *section, remain = *section; |
| 772 | |
| 773 | if ((now.offset_within_address_space & ~TARGET_PAGE_MASK) |
| 774 | || (now.size < TARGET_PAGE_SIZE)) { |
| 775 | now.size = MIN(TARGET_PAGE_ALIGN(now.offset_within_address_space) |
| 776 | - now.offset_within_address_space, |
| 777 | now.size); |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 778 | register_subpage(d, &now); |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 779 | remain.size -= now.size; |
| 780 | remain.offset_within_address_space += now.size; |
| 781 | remain.offset_within_region += now.size; |
| 782 | } |
Tyler Hall | 69b6764 | 2012-07-25 18:45:04 -0400 | [diff] [blame] | 783 | while (remain.size >= TARGET_PAGE_SIZE) { |
| 784 | now = remain; |
| 785 | if (remain.offset_within_region & ~TARGET_PAGE_MASK) { |
| 786 | now.size = TARGET_PAGE_SIZE; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 787 | register_subpage(d, &now); |
Tyler Hall | 69b6764 | 2012-07-25 18:45:04 -0400 | [diff] [blame] | 788 | } else { |
| 789 | now.size &= TARGET_PAGE_MASK; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 790 | register_multipage(d, &now); |
Tyler Hall | 69b6764 | 2012-07-25 18:45:04 -0400 | [diff] [blame] | 791 | } |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 792 | remain.size -= now.size; |
| 793 | remain.offset_within_address_space += now.size; |
| 794 | remain.offset_within_region += now.size; |
| 795 | } |
| 796 | now = remain; |
| 797 | if (now.size) { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 798 | register_subpage(d, &now); |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 799 | } |
| 800 | } |
| 801 | |
Sheng Yang | 62a2744 | 2010-01-26 19:21:16 +0800 | [diff] [blame] | 802 | void qemu_flush_coalesced_mmio_buffer(void) |
| 803 | { |
| 804 | if (kvm_enabled()) |
| 805 | kvm_flush_coalesced_mmio_buffer(); |
| 806 | } |
| 807 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 808 | void qemu_mutex_lock_ramlist(void) |
| 809 | { |
| 810 | qemu_mutex_lock(&ram_list.mutex); |
| 811 | } |
| 812 | |
| 813 | void qemu_mutex_unlock_ramlist(void) |
| 814 | { |
| 815 | qemu_mutex_unlock(&ram_list.mutex); |
| 816 | } |
| 817 | |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 818 | #if defined(__linux__) && !defined(TARGET_S390X) |
| 819 | |
| 820 | #include <sys/vfs.h> |
| 821 | |
| 822 | #define HUGETLBFS_MAGIC 0x958458f6 |
| 823 | |
| 824 | static long gethugepagesize(const char *path) |
| 825 | { |
| 826 | struct statfs fs; |
| 827 | int ret; |
| 828 | |
| 829 | do { |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 830 | ret = statfs(path, &fs); |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 831 | } while (ret != 0 && errno == EINTR); |
| 832 | |
| 833 | if (ret != 0) { |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 834 | perror(path); |
| 835 | return 0; |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 836 | } |
| 837 | |
| 838 | if (fs.f_type != HUGETLBFS_MAGIC) |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 839 | fprintf(stderr, "Warning: path not on HugeTLBFS: %s\n", path); |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 840 | |
| 841 | return fs.f_bsize; |
| 842 | } |
| 843 | |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 844 | static void *file_ram_alloc(RAMBlock *block, |
| 845 | ram_addr_t memory, |
| 846 | const char *path) |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 847 | { |
| 848 | char *filename; |
Peter Feiner | 8ca761f | 2013-03-04 13:54:25 -0500 | [diff] [blame] | 849 | char *sanitized_name; |
| 850 | char *c; |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 851 | void *area; |
| 852 | int fd; |
| 853 | #ifdef MAP_POPULATE |
| 854 | int flags; |
| 855 | #endif |
| 856 | unsigned long hpagesize; |
| 857 | |
| 858 | hpagesize = gethugepagesize(path); |
| 859 | if (!hpagesize) { |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 860 | return NULL; |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 861 | } |
| 862 | |
| 863 | if (memory < hpagesize) { |
| 864 | return NULL; |
| 865 | } |
| 866 | |
| 867 | if (kvm_enabled() && !kvm_has_sync_mmu()) { |
| 868 | fprintf(stderr, "host lacks kvm mmu notifiers, -mem-path unsupported\n"); |
| 869 | return NULL; |
| 870 | } |
| 871 | |
Peter Feiner | 8ca761f | 2013-03-04 13:54:25 -0500 | [diff] [blame] | 872 | /* Make name safe to use with mkstemp by replacing '/' with '_'. */ |
| 873 | sanitized_name = g_strdup(block->mr->name); |
| 874 | for (c = sanitized_name; *c != '\0'; c++) { |
| 875 | if (*c == '/') |
| 876 | *c = '_'; |
| 877 | } |
| 878 | |
| 879 | filename = g_strdup_printf("%s/qemu_back_mem.%s.XXXXXX", path, |
| 880 | sanitized_name); |
| 881 | g_free(sanitized_name); |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 882 | |
| 883 | fd = mkstemp(filename); |
| 884 | if (fd < 0) { |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 885 | perror("unable to create backing store for hugepages"); |
Stefan Weil | e4ada48 | 2013-01-16 18:37:23 +0100 | [diff] [blame] | 886 | g_free(filename); |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 887 | return NULL; |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 888 | } |
| 889 | unlink(filename); |
Stefan Weil | e4ada48 | 2013-01-16 18:37:23 +0100 | [diff] [blame] | 890 | g_free(filename); |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 891 | |
| 892 | memory = (memory+hpagesize-1) & ~(hpagesize-1); |
| 893 | |
| 894 | /* |
| 895 | * ftruncate is not supported by hugetlbfs in older |
| 896 | * hosts, so don't bother bailing out on errors. |
| 897 | * If anything goes wrong with it under other filesystems, |
| 898 | * mmap will fail. |
| 899 | */ |
| 900 | if (ftruncate(fd, memory)) |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 901 | perror("ftruncate"); |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 902 | |
| 903 | #ifdef MAP_POPULATE |
| 904 | /* NB: MAP_POPULATE won't exhaustively alloc all phys pages in the case |
| 905 | * MAP_PRIVATE is requested. For mem_prealloc we mmap as MAP_SHARED |
| 906 | * to sidestep this quirk. |
| 907 | */ |
| 908 | flags = mem_prealloc ? MAP_POPULATE | MAP_SHARED : MAP_PRIVATE; |
| 909 | area = mmap(0, memory, PROT_READ | PROT_WRITE, flags, fd, 0); |
| 910 | #else |
| 911 | area = mmap(0, memory, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); |
| 912 | #endif |
| 913 | if (area == MAP_FAILED) { |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 914 | perror("file_ram_alloc: can't mmap RAM pages"); |
| 915 | close(fd); |
| 916 | return (NULL); |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 917 | } |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 918 | block->fd = fd; |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 919 | return area; |
| 920 | } |
| 921 | #endif |
| 922 | |
Alex Williamson | d17b528 | 2010-06-25 11:08:38 -0600 | [diff] [blame] | 923 | static ram_addr_t find_ram_offset(ram_addr_t size) |
| 924 | { |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 925 | RAMBlock *block, *next_block; |
Alex Williamson | 3e837b2 | 2011-10-31 08:54:09 -0600 | [diff] [blame] | 926 | ram_addr_t offset = RAM_ADDR_MAX, mingap = RAM_ADDR_MAX; |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 927 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 928 | if (QTAILQ_EMPTY(&ram_list.blocks)) |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 929 | return 0; |
| 930 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 931 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Anthony PERARD | f15fbc4 | 2011-07-20 08:17:42 +0000 | [diff] [blame] | 932 | ram_addr_t end, next = RAM_ADDR_MAX; |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 933 | |
| 934 | end = block->offset + block->length; |
| 935 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 936 | QTAILQ_FOREACH(next_block, &ram_list.blocks, next) { |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 937 | if (next_block->offset >= end) { |
| 938 | next = MIN(next, next_block->offset); |
| 939 | } |
| 940 | } |
| 941 | if (next - end >= size && next - end < mingap) { |
Alex Williamson | 3e837b2 | 2011-10-31 08:54:09 -0600 | [diff] [blame] | 942 | offset = end; |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 943 | mingap = next - end; |
| 944 | } |
| 945 | } |
Alex Williamson | 3e837b2 | 2011-10-31 08:54:09 -0600 | [diff] [blame] | 946 | |
| 947 | if (offset == RAM_ADDR_MAX) { |
| 948 | fprintf(stderr, "Failed to find gap of requested size: %" PRIu64 "\n", |
| 949 | (uint64_t)size); |
| 950 | abort(); |
| 951 | } |
| 952 | |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 953 | return offset; |
| 954 | } |
| 955 | |
Juan Quintela | 652d7ec | 2012-07-20 10:37:54 +0200 | [diff] [blame] | 956 | ram_addr_t last_ram_offset(void) |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 957 | { |
Alex Williamson | d17b528 | 2010-06-25 11:08:38 -0600 | [diff] [blame] | 958 | RAMBlock *block; |
| 959 | ram_addr_t last = 0; |
| 960 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 961 | QTAILQ_FOREACH(block, &ram_list.blocks, next) |
Alex Williamson | d17b528 | 2010-06-25 11:08:38 -0600 | [diff] [blame] | 962 | last = MAX(last, block->offset + block->length); |
| 963 | |
| 964 | return last; |
| 965 | } |
| 966 | |
Jason Baron | ddb97f1 | 2012-08-02 15:44:16 -0400 | [diff] [blame] | 967 | static void qemu_ram_setup_dump(void *addr, ram_addr_t size) |
| 968 | { |
| 969 | int ret; |
| 970 | QemuOpts *machine_opts; |
| 971 | |
| 972 | /* Use MADV_DONTDUMP, if user doesn't want the guest memory in the core */ |
| 973 | machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0); |
| 974 | if (machine_opts && |
| 975 | !qemu_opt_get_bool(machine_opts, "dump-guest-core", true)) { |
| 976 | ret = qemu_madvise(addr, size, QEMU_MADV_DONTDUMP); |
| 977 | if (ret) { |
| 978 | perror("qemu_madvise"); |
| 979 | fprintf(stderr, "madvise doesn't support MADV_DONTDUMP, " |
| 980 | "but dump_guest_core=off specified\n"); |
| 981 | } |
| 982 | } |
| 983 | } |
| 984 | |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 985 | void qemu_ram_set_idstr(ram_addr_t addr, const char *name, DeviceState *dev) |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 986 | { |
| 987 | RAMBlock *new_block, *block; |
| 988 | |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 989 | new_block = NULL; |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 990 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 991 | if (block->offset == addr) { |
| 992 | new_block = block; |
| 993 | break; |
| 994 | } |
| 995 | } |
| 996 | assert(new_block); |
| 997 | assert(!new_block->idstr[0]); |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 998 | |
Anthony Liguori | 09e5ab6 | 2012-02-03 12:28:43 -0600 | [diff] [blame] | 999 | if (dev) { |
| 1000 | char *id = qdev_get_dev_path(dev); |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1001 | if (id) { |
| 1002 | snprintf(new_block->idstr, sizeof(new_block->idstr), "%s/", id); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1003 | g_free(id); |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1004 | } |
| 1005 | } |
| 1006 | pstrcat(new_block->idstr, sizeof(new_block->idstr), name); |
| 1007 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1008 | /* This assumes the iothread lock is taken here too. */ |
| 1009 | qemu_mutex_lock_ramlist(); |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1010 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1011 | if (block != new_block && !strcmp(block->idstr, new_block->idstr)) { |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1012 | fprintf(stderr, "RAMBlock \"%s\" already registered, abort!\n", |
| 1013 | new_block->idstr); |
| 1014 | abort(); |
| 1015 | } |
| 1016 | } |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1017 | qemu_mutex_unlock_ramlist(); |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1018 | } |
| 1019 | |
Luiz Capitulino | 8490fc7 | 2012-09-05 16:50:16 -0300 | [diff] [blame] | 1020 | static int memory_try_enable_merging(void *addr, size_t len) |
| 1021 | { |
| 1022 | QemuOpts *opts; |
| 1023 | |
| 1024 | opts = qemu_opts_find(qemu_find_opts("machine"), 0); |
| 1025 | if (opts && !qemu_opt_get_bool(opts, "mem-merge", true)) { |
| 1026 | /* disabled by the user */ |
| 1027 | return 0; |
| 1028 | } |
| 1029 | |
| 1030 | return qemu_madvise(addr, len, QEMU_MADV_MERGEABLE); |
| 1031 | } |
| 1032 | |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1033 | ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host, |
| 1034 | MemoryRegion *mr) |
| 1035 | { |
Paolo Bonzini | abb26d6 | 2012-11-14 16:00:51 +0100 | [diff] [blame] | 1036 | RAMBlock *block, *new_block; |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1037 | |
| 1038 | size = TARGET_PAGE_ALIGN(size); |
| 1039 | new_block = g_malloc0(sizeof(*new_block)); |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1040 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1041 | /* This assumes the iothread lock is taken here too. */ |
| 1042 | qemu_mutex_lock_ramlist(); |
Avi Kivity | 7c63736 | 2011-12-21 13:09:49 +0200 | [diff] [blame] | 1043 | new_block->mr = mr; |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1044 | new_block->offset = find_ram_offset(size); |
Yoshiaki Tamura | 6977dfe | 2010-08-18 15:41:49 +0900 | [diff] [blame] | 1045 | if (host) { |
| 1046 | new_block->host = host; |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1047 | new_block->flags |= RAM_PREALLOC_MASK; |
Yoshiaki Tamura | 6977dfe | 2010-08-18 15:41:49 +0900 | [diff] [blame] | 1048 | } else { |
| 1049 | if (mem_path) { |
| 1050 | #if defined (__linux__) && !defined(TARGET_S390X) |
| 1051 | new_block->host = file_ram_alloc(new_block, size, mem_path); |
| 1052 | if (!new_block->host) { |
| 1053 | new_block->host = qemu_vmalloc(size); |
Luiz Capitulino | 8490fc7 | 2012-09-05 16:50:16 -0300 | [diff] [blame] | 1054 | memory_try_enable_merging(new_block->host, size); |
Yoshiaki Tamura | 6977dfe | 2010-08-18 15:41:49 +0900 | [diff] [blame] | 1055 | } |
| 1056 | #else |
| 1057 | fprintf(stderr, "-mem-path option unsupported\n"); |
| 1058 | exit(1); |
| 1059 | #endif |
| 1060 | } else { |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 1061 | if (xen_enabled()) { |
Avi Kivity | fce537d | 2011-12-18 15:48:55 +0200 | [diff] [blame] | 1062 | xen_ram_alloc(new_block->offset, size, mr); |
Christian Borntraeger | fdec991 | 2012-06-15 05:10:30 +0000 | [diff] [blame] | 1063 | } else if (kvm_enabled()) { |
| 1064 | /* some s390/kvm configurations have special constraints */ |
| 1065 | new_block->host = kvm_vmalloc(size); |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1066 | } else { |
| 1067 | new_block->host = qemu_vmalloc(size); |
| 1068 | } |
Luiz Capitulino | 8490fc7 | 2012-09-05 16:50:16 -0300 | [diff] [blame] | 1069 | memory_try_enable_merging(new_block->host, size); |
Yoshiaki Tamura | 6977dfe | 2010-08-18 15:41:49 +0900 | [diff] [blame] | 1070 | } |
| 1071 | } |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1072 | new_block->length = size; |
| 1073 | |
Paolo Bonzini | abb26d6 | 2012-11-14 16:00:51 +0100 | [diff] [blame] | 1074 | /* Keep the list sorted from biggest to smallest block. */ |
| 1075 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1076 | if (block->length < new_block->length) { |
| 1077 | break; |
| 1078 | } |
| 1079 | } |
| 1080 | if (block) { |
| 1081 | QTAILQ_INSERT_BEFORE(block, new_block, next); |
| 1082 | } else { |
| 1083 | QTAILQ_INSERT_TAIL(&ram_list.blocks, new_block, next); |
| 1084 | } |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1085 | ram_list.mru_block = NULL; |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1086 | |
Umesh Deshpande | f798b07 | 2011-08-18 11:41:17 -0700 | [diff] [blame] | 1087 | ram_list.version++; |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1088 | qemu_mutex_unlock_ramlist(); |
Umesh Deshpande | f798b07 | 2011-08-18 11:41:17 -0700 | [diff] [blame] | 1089 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1090 | ram_list.phys_dirty = g_realloc(ram_list.phys_dirty, |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1091 | last_ram_offset() >> TARGET_PAGE_BITS); |
Igor Mitsyanko | 5fda043 | 2012-08-10 18:45:11 +0400 | [diff] [blame] | 1092 | memset(ram_list.phys_dirty + (new_block->offset >> TARGET_PAGE_BITS), |
| 1093 | 0, size >> TARGET_PAGE_BITS); |
Juan Quintela | 1720aee | 2012-06-22 13:14:17 +0200 | [diff] [blame] | 1094 | cpu_physical_memory_set_dirty_range(new_block->offset, size, 0xff); |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1095 | |
Jason Baron | ddb97f1 | 2012-08-02 15:44:16 -0400 | [diff] [blame] | 1096 | qemu_ram_setup_dump(new_block->host, size); |
Luiz Capitulino | ad0b532 | 2012-10-05 16:47:57 -0300 | [diff] [blame] | 1097 | qemu_madvise(new_block->host, size, QEMU_MADV_HUGEPAGE); |
Jason Baron | ddb97f1 | 2012-08-02 15:44:16 -0400 | [diff] [blame] | 1098 | |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1099 | if (kvm_enabled()) |
| 1100 | kvm_setup_guest_memory(new_block->host, size); |
| 1101 | |
| 1102 | return new_block->offset; |
| 1103 | } |
| 1104 | |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1105 | ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr) |
pbrook | 94a6b54 | 2009-04-11 17:15:54 +0000 | [diff] [blame] | 1106 | { |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1107 | return qemu_ram_alloc_from_ptr(size, NULL, mr); |
pbrook | 94a6b54 | 2009-04-11 17:15:54 +0000 | [diff] [blame] | 1108 | } |
bellard | e9a1ab1 | 2007-02-08 23:08:38 +0000 | [diff] [blame] | 1109 | |
Alex Williamson | 1f2e98b | 2011-05-03 12:48:09 -0600 | [diff] [blame] | 1110 | void qemu_ram_free_from_ptr(ram_addr_t addr) |
| 1111 | { |
| 1112 | RAMBlock *block; |
| 1113 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1114 | /* This assumes the iothread lock is taken here too. */ |
| 1115 | qemu_mutex_lock_ramlist(); |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1116 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Alex Williamson | 1f2e98b | 2011-05-03 12:48:09 -0600 | [diff] [blame] | 1117 | if (addr == block->offset) { |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1118 | QTAILQ_REMOVE(&ram_list.blocks, block, next); |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1119 | ram_list.mru_block = NULL; |
Umesh Deshpande | f798b07 | 2011-08-18 11:41:17 -0700 | [diff] [blame] | 1120 | ram_list.version++; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1121 | g_free(block); |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1122 | break; |
Alex Williamson | 1f2e98b | 2011-05-03 12:48:09 -0600 | [diff] [blame] | 1123 | } |
| 1124 | } |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1125 | qemu_mutex_unlock_ramlist(); |
Alex Williamson | 1f2e98b | 2011-05-03 12:48:09 -0600 | [diff] [blame] | 1126 | } |
| 1127 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1128 | void qemu_ram_free(ram_addr_t addr) |
bellard | e9a1ab1 | 2007-02-08 23:08:38 +0000 | [diff] [blame] | 1129 | { |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1130 | RAMBlock *block; |
| 1131 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1132 | /* This assumes the iothread lock is taken here too. */ |
| 1133 | qemu_mutex_lock_ramlist(); |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1134 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1135 | if (addr == block->offset) { |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1136 | QTAILQ_REMOVE(&ram_list.blocks, block, next); |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1137 | ram_list.mru_block = NULL; |
Umesh Deshpande | f798b07 | 2011-08-18 11:41:17 -0700 | [diff] [blame] | 1138 | ram_list.version++; |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1139 | if (block->flags & RAM_PREALLOC_MASK) { |
| 1140 | ; |
| 1141 | } else if (mem_path) { |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1142 | #if defined (__linux__) && !defined(TARGET_S390X) |
| 1143 | if (block->fd) { |
| 1144 | munmap(block->host, block->length); |
| 1145 | close(block->fd); |
| 1146 | } else { |
| 1147 | qemu_vfree(block->host); |
| 1148 | } |
Jan Kiszka | fd28aa1 | 2011-03-15 12:26:14 +0100 | [diff] [blame] | 1149 | #else |
| 1150 | abort(); |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1151 | #endif |
| 1152 | } else { |
| 1153 | #if defined(TARGET_S390X) && defined(CONFIG_KVM) |
| 1154 | munmap(block->host, block->length); |
| 1155 | #else |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 1156 | if (xen_enabled()) { |
Jan Kiszka | e41d7c6 | 2011-06-21 22:59:08 +0200 | [diff] [blame] | 1157 | xen_invalidate_map_cache_entry(block->host); |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1158 | } else { |
| 1159 | qemu_vfree(block->host); |
| 1160 | } |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1161 | #endif |
| 1162 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1163 | g_free(block); |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1164 | break; |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1165 | } |
| 1166 | } |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1167 | qemu_mutex_unlock_ramlist(); |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1168 | |
bellard | e9a1ab1 | 2007-02-08 23:08:38 +0000 | [diff] [blame] | 1169 | } |
| 1170 | |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1171 | #ifndef _WIN32 |
| 1172 | void qemu_ram_remap(ram_addr_t addr, ram_addr_t length) |
| 1173 | { |
| 1174 | RAMBlock *block; |
| 1175 | ram_addr_t offset; |
| 1176 | int flags; |
| 1177 | void *area, *vaddr; |
| 1178 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1179 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1180 | offset = addr - block->offset; |
| 1181 | if (offset < block->length) { |
| 1182 | vaddr = block->host + offset; |
| 1183 | if (block->flags & RAM_PREALLOC_MASK) { |
| 1184 | ; |
| 1185 | } else { |
| 1186 | flags = MAP_FIXED; |
| 1187 | munmap(vaddr, length); |
| 1188 | if (mem_path) { |
| 1189 | #if defined(__linux__) && !defined(TARGET_S390X) |
| 1190 | if (block->fd) { |
| 1191 | #ifdef MAP_POPULATE |
| 1192 | flags |= mem_prealloc ? MAP_POPULATE | MAP_SHARED : |
| 1193 | MAP_PRIVATE; |
| 1194 | #else |
| 1195 | flags |= MAP_PRIVATE; |
| 1196 | #endif |
| 1197 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
| 1198 | flags, block->fd, offset); |
| 1199 | } else { |
| 1200 | flags |= MAP_PRIVATE | MAP_ANONYMOUS; |
| 1201 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
| 1202 | flags, -1, 0); |
| 1203 | } |
Jan Kiszka | fd28aa1 | 2011-03-15 12:26:14 +0100 | [diff] [blame] | 1204 | #else |
| 1205 | abort(); |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1206 | #endif |
| 1207 | } else { |
| 1208 | #if defined(TARGET_S390X) && defined(CONFIG_KVM) |
| 1209 | flags |= MAP_SHARED | MAP_ANONYMOUS; |
| 1210 | area = mmap(vaddr, length, PROT_EXEC|PROT_READ|PROT_WRITE, |
| 1211 | flags, -1, 0); |
| 1212 | #else |
| 1213 | flags |= MAP_PRIVATE | MAP_ANONYMOUS; |
| 1214 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
| 1215 | flags, -1, 0); |
| 1216 | #endif |
| 1217 | } |
| 1218 | if (area != vaddr) { |
Anthony PERARD | f15fbc4 | 2011-07-20 08:17:42 +0000 | [diff] [blame] | 1219 | fprintf(stderr, "Could not remap addr: " |
| 1220 | RAM_ADDR_FMT "@" RAM_ADDR_FMT "\n", |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1221 | length, addr); |
| 1222 | exit(1); |
| 1223 | } |
Luiz Capitulino | 8490fc7 | 2012-09-05 16:50:16 -0300 | [diff] [blame] | 1224 | memory_try_enable_merging(vaddr, length); |
Jason Baron | ddb97f1 | 2012-08-02 15:44:16 -0400 | [diff] [blame] | 1225 | qemu_ram_setup_dump(vaddr, length); |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1226 | } |
| 1227 | return; |
| 1228 | } |
| 1229 | } |
| 1230 | } |
| 1231 | #endif /* !_WIN32 */ |
| 1232 | |
pbrook | dc828ca | 2009-04-09 22:21:07 +0000 | [diff] [blame] | 1233 | /* Return a host pointer to ram allocated with qemu_ram_alloc. |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 1234 | With the exception of the softmmu code in this file, this should |
| 1235 | only be used for local memory (e.g. video ram) that the device owns, |
| 1236 | and knows it isn't going to access beyond the end of the block. |
| 1237 | |
| 1238 | It should not be used for general purpose DMA. |
| 1239 | Use cpu_physical_memory_map/cpu_physical_memory_rw instead. |
| 1240 | */ |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1241 | void *qemu_get_ram_ptr(ram_addr_t addr) |
pbrook | dc828ca | 2009-04-09 22:21:07 +0000 | [diff] [blame] | 1242 | { |
pbrook | 94a6b54 | 2009-04-11 17:15:54 +0000 | [diff] [blame] | 1243 | RAMBlock *block; |
| 1244 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1245 | /* The list is protected by the iothread lock here. */ |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1246 | block = ram_list.mru_block; |
| 1247 | if (block && addr - block->offset < block->length) { |
| 1248 | goto found; |
| 1249 | } |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1250 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1251 | if (addr - block->offset < block->length) { |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1252 | goto found; |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1253 | } |
pbrook | 94a6b54 | 2009-04-11 17:15:54 +0000 | [diff] [blame] | 1254 | } |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1255 | |
| 1256 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
| 1257 | abort(); |
| 1258 | |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1259 | found: |
| 1260 | ram_list.mru_block = block; |
| 1261 | if (xen_enabled()) { |
| 1262 | /* We need to check if the requested address is in the RAM |
| 1263 | * because we don't want to map the entire memory in QEMU. |
| 1264 | * In that case just map until the end of the page. |
| 1265 | */ |
| 1266 | if (block->offset == 0) { |
| 1267 | return xen_map_cache(addr, 0, 0); |
| 1268 | } else if (block->host == NULL) { |
| 1269 | block->host = |
| 1270 | xen_map_cache(block->offset, block->length, 1); |
| 1271 | } |
| 1272 | } |
| 1273 | return block->host + (addr - block->offset); |
pbrook | dc828ca | 2009-04-09 22:21:07 +0000 | [diff] [blame] | 1274 | } |
| 1275 | |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1276 | /* Return a host pointer to ram allocated with qemu_ram_alloc. Same as |
| 1277 | * qemu_get_ram_ptr but do not touch ram_list.mru_block. |
| 1278 | * |
| 1279 | * ??? Is this still necessary? |
Michael S. Tsirkin | b2e0a13 | 2010-11-22 19:52:34 +0200 | [diff] [blame] | 1280 | */ |
Blue Swirl | 8b9c99d | 2012-10-28 11:04:51 +0000 | [diff] [blame] | 1281 | static void *qemu_safe_ram_ptr(ram_addr_t addr) |
Michael S. Tsirkin | b2e0a13 | 2010-11-22 19:52:34 +0200 | [diff] [blame] | 1282 | { |
| 1283 | RAMBlock *block; |
| 1284 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1285 | /* The list is protected by the iothread lock here. */ |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1286 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Michael S. Tsirkin | b2e0a13 | 2010-11-22 19:52:34 +0200 | [diff] [blame] | 1287 | if (addr - block->offset < block->length) { |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 1288 | if (xen_enabled()) { |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1289 | /* We need to check if the requested address is in the RAM |
| 1290 | * because we don't want to map the entire memory in QEMU. |
Stefano Stabellini | 712c2b4 | 2011-05-19 18:35:46 +0100 | [diff] [blame] | 1291 | * In that case just map until the end of the page. |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1292 | */ |
| 1293 | if (block->offset == 0) { |
Jan Kiszka | e41d7c6 | 2011-06-21 22:59:08 +0200 | [diff] [blame] | 1294 | return xen_map_cache(addr, 0, 0); |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1295 | } else if (block->host == NULL) { |
Jan Kiszka | e41d7c6 | 2011-06-21 22:59:08 +0200 | [diff] [blame] | 1296 | block->host = |
| 1297 | xen_map_cache(block->offset, block->length, 1); |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1298 | } |
| 1299 | } |
Michael S. Tsirkin | b2e0a13 | 2010-11-22 19:52:34 +0200 | [diff] [blame] | 1300 | return block->host + (addr - block->offset); |
| 1301 | } |
| 1302 | } |
| 1303 | |
| 1304 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
| 1305 | abort(); |
| 1306 | |
| 1307 | return NULL; |
| 1308 | } |
| 1309 | |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 1310 | /* Return a host pointer to guest's ram. Similar to qemu_get_ram_ptr |
| 1311 | * but takes a size argument */ |
Blue Swirl | 8b9c99d | 2012-10-28 11:04:51 +0000 | [diff] [blame] | 1312 | static void *qemu_ram_ptr_length(ram_addr_t addr, ram_addr_t *size) |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 1313 | { |
Stefano Stabellini | 8ab934f | 2011-06-27 18:26:06 +0100 | [diff] [blame] | 1314 | if (*size == 0) { |
| 1315 | return NULL; |
| 1316 | } |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 1317 | if (xen_enabled()) { |
Jan Kiszka | e41d7c6 | 2011-06-21 22:59:08 +0200 | [diff] [blame] | 1318 | return xen_map_cache(addr, *size, 1); |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 1319 | } else { |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 1320 | RAMBlock *block; |
| 1321 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1322 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 1323 | if (addr - block->offset < block->length) { |
| 1324 | if (addr - block->offset + *size > block->length) |
| 1325 | *size = block->length - addr + block->offset; |
| 1326 | return block->host + (addr - block->offset); |
| 1327 | } |
| 1328 | } |
| 1329 | |
| 1330 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
| 1331 | abort(); |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 1332 | } |
| 1333 | } |
| 1334 | |
Anthony PERARD | 050a0dd | 2010-09-16 13:57:49 +0100 | [diff] [blame] | 1335 | void qemu_put_ram_ptr(void *addr) |
| 1336 | { |
| 1337 | trace_qemu_put_ram_ptr(addr); |
Anthony PERARD | 050a0dd | 2010-09-16 13:57:49 +0100 | [diff] [blame] | 1338 | } |
| 1339 | |
Marcelo Tosatti | e890261 | 2010-10-11 15:31:19 -0300 | [diff] [blame] | 1340 | int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr) |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 1341 | { |
pbrook | 94a6b54 | 2009-04-11 17:15:54 +0000 | [diff] [blame] | 1342 | RAMBlock *block; |
| 1343 | uint8_t *host = ptr; |
| 1344 | |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 1345 | if (xen_enabled()) { |
Jan Kiszka | e41d7c6 | 2011-06-21 22:59:08 +0200 | [diff] [blame] | 1346 | *ram_addr = xen_ram_addr_from_mapcache(ptr); |
Stefano Stabellini | 712c2b4 | 2011-05-19 18:35:46 +0100 | [diff] [blame] | 1347 | return 0; |
| 1348 | } |
| 1349 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1350 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1351 | /* This case append when the block is not mapped. */ |
| 1352 | if (block->host == NULL) { |
| 1353 | continue; |
| 1354 | } |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1355 | if (host - block->host < block->length) { |
Marcelo Tosatti | e890261 | 2010-10-11 15:31:19 -0300 | [diff] [blame] | 1356 | *ram_addr = block->offset + (host - block->host); |
| 1357 | return 0; |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1358 | } |
pbrook | 94a6b54 | 2009-04-11 17:15:54 +0000 | [diff] [blame] | 1359 | } |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1360 | |
Marcelo Tosatti | e890261 | 2010-10-11 15:31:19 -0300 | [diff] [blame] | 1361 | return -1; |
| 1362 | } |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1363 | |
Marcelo Tosatti | e890261 | 2010-10-11 15:31:19 -0300 | [diff] [blame] | 1364 | /* Some of the softmmu routines need to translate from a host pointer |
| 1365 | (typically a TLB entry) back to a ram offset. */ |
| 1366 | ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr) |
| 1367 | { |
| 1368 | ram_addr_t ram_addr; |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1369 | |
Marcelo Tosatti | e890261 | 2010-10-11 15:31:19 -0300 | [diff] [blame] | 1370 | if (qemu_ram_addr_from_host(ptr, &ram_addr)) { |
| 1371 | fprintf(stderr, "Bad ram pointer %p\n", ptr); |
| 1372 | abort(); |
| 1373 | } |
| 1374 | return ram_addr; |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 1375 | } |
| 1376 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1377 | static uint64_t unassigned_mem_read(void *opaque, hwaddr addr, |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1378 | unsigned size) |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1379 | { |
pbrook | 67d3b95 | 2006-12-18 05:03:52 +0000 | [diff] [blame] | 1380 | #ifdef DEBUG_UNASSIGNED |
blueswir1 | ab3d172 | 2007-11-04 07:31:40 +0000 | [diff] [blame] | 1381 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
pbrook | 67d3b95 | 2006-12-18 05:03:52 +0000 | [diff] [blame] | 1382 | #endif |
Richard Henderson | 5b45040 | 2011-04-18 16:13:12 -0700 | [diff] [blame] | 1383 | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1384 | cpu_unassigned_access(cpu_single_env, addr, 0, 0, 0, size); |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 1385 | #endif |
| 1386 | return 0; |
| 1387 | } |
| 1388 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1389 | static void unassigned_mem_write(void *opaque, hwaddr addr, |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1390 | uint64_t val, unsigned size) |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 1391 | { |
| 1392 | #ifdef DEBUG_UNASSIGNED |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1393 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%"PRIx64"\n", addr, val); |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 1394 | #endif |
Richard Henderson | 5b45040 | 2011-04-18 16:13:12 -0700 | [diff] [blame] | 1395 | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1396 | cpu_unassigned_access(cpu_single_env, addr, 1, 0, 0, size); |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 1397 | #endif |
| 1398 | } |
| 1399 | |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1400 | static const MemoryRegionOps unassigned_mem_ops = { |
| 1401 | .read = unassigned_mem_read, |
| 1402 | .write = unassigned_mem_write, |
| 1403 | .endianness = DEVICE_NATIVE_ENDIAN, |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1404 | }; |
| 1405 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1406 | static uint64_t error_mem_read(void *opaque, hwaddr addr, |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1407 | unsigned size) |
| 1408 | { |
| 1409 | abort(); |
| 1410 | } |
| 1411 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1412 | static void error_mem_write(void *opaque, hwaddr addr, |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1413 | uint64_t value, unsigned size) |
| 1414 | { |
| 1415 | abort(); |
| 1416 | } |
| 1417 | |
| 1418 | static const MemoryRegionOps error_mem_ops = { |
| 1419 | .read = error_mem_read, |
| 1420 | .write = error_mem_write, |
| 1421 | .endianness = DEVICE_NATIVE_ENDIAN, |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1422 | }; |
| 1423 | |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1424 | static const MemoryRegionOps rom_mem_ops = { |
| 1425 | .read = error_mem_read, |
| 1426 | .write = unassigned_mem_write, |
| 1427 | .endianness = DEVICE_NATIVE_ENDIAN, |
| 1428 | }; |
| 1429 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1430 | static void notdirty_mem_write(void *opaque, hwaddr ram_addr, |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1431 | uint64_t val, unsigned size) |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1432 | { |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1433 | int dirty_flags; |
Yoshiaki Tamura | f7c11b5 | 2010-03-23 16:39:53 +0900 | [diff] [blame] | 1434 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1435 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 1436 | #if !defined(CONFIG_USER_ONLY) |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1437 | tb_invalidate_phys_page_fast(ram_addr, size); |
Yoshiaki Tamura | f7c11b5 | 2010-03-23 16:39:53 +0900 | [diff] [blame] | 1438 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1439 | #endif |
| 1440 | } |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1441 | switch (size) { |
| 1442 | case 1: |
| 1443 | stb_p(qemu_get_ram_ptr(ram_addr), val); |
| 1444 | break; |
| 1445 | case 2: |
| 1446 | stw_p(qemu_get_ram_ptr(ram_addr), val); |
| 1447 | break; |
| 1448 | case 4: |
| 1449 | stl_p(qemu_get_ram_ptr(ram_addr), val); |
| 1450 | break; |
| 1451 | default: |
| 1452 | abort(); |
| 1453 | } |
bellard | f23db16 | 2005-08-21 19:12:28 +0000 | [diff] [blame] | 1454 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
Yoshiaki Tamura | f7c11b5 | 2010-03-23 16:39:53 +0900 | [diff] [blame] | 1455 | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
bellard | f23db16 | 2005-08-21 19:12:28 +0000 | [diff] [blame] | 1456 | /* we remove the notdirty callback only if the code has been |
| 1457 | flushed */ |
| 1458 | if (dirty_flags == 0xff) |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 1459 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1460 | } |
| 1461 | |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1462 | static const MemoryRegionOps notdirty_mem_ops = { |
| 1463 | .read = error_mem_read, |
| 1464 | .write = notdirty_mem_write, |
| 1465 | .endianness = DEVICE_NATIVE_ENDIAN, |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1466 | }; |
| 1467 | |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1468 | /* Generate a debug exception if a watchpoint has been hit. */ |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 1469 | static void check_watchpoint(int offset, int len_mask, int flags) |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1470 | { |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 1471 | CPUArchState *env = cpu_single_env; |
aliguori | 06d55cc | 2008-11-18 20:24:06 +0000 | [diff] [blame] | 1472 | target_ulong pc, cs_base; |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1473 | target_ulong vaddr; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1474 | CPUWatchpoint *wp; |
aliguori | 06d55cc | 2008-11-18 20:24:06 +0000 | [diff] [blame] | 1475 | int cpu_flags; |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1476 | |
aliguori | 06d55cc | 2008-11-18 20:24:06 +0000 | [diff] [blame] | 1477 | if (env->watchpoint_hit) { |
| 1478 | /* We re-entered the check after replacing the TB. Now raise |
| 1479 | * the debug interrupt so that is will trigger after the |
| 1480 | * current instruction. */ |
Andreas Färber | c3affe5 | 2013-01-18 15:03:43 +0100 | [diff] [blame] | 1481 | cpu_interrupt(ENV_GET_CPU(env), CPU_INTERRUPT_DEBUG); |
aliguori | 06d55cc | 2008-11-18 20:24:06 +0000 | [diff] [blame] | 1482 | return; |
| 1483 | } |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 1484 | vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset; |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 1485 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 1486 | if ((vaddr == (wp->vaddr & len_mask) || |
| 1487 | (vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) { |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 1488 | wp->flags |= BP_WATCHPOINT_HIT; |
| 1489 | if (!env->watchpoint_hit) { |
| 1490 | env->watchpoint_hit = wp; |
Blue Swirl | 5a31652 | 2012-12-02 21:28:09 +0000 | [diff] [blame] | 1491 | tb_check_watchpoint(env); |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 1492 | if (wp->flags & BP_STOP_BEFORE_ACCESS) { |
| 1493 | env->exception_index = EXCP_DEBUG; |
Max Filippov | 488d657 | 2012-01-29 02:24:39 +0400 | [diff] [blame] | 1494 | cpu_loop_exit(env); |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 1495 | } else { |
| 1496 | cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags); |
| 1497 | tb_gen_code(env, pc, cs_base, cpu_flags, 1); |
Max Filippov | 488d657 | 2012-01-29 02:24:39 +0400 | [diff] [blame] | 1498 | cpu_resume_from_signal(env, NULL); |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 1499 | } |
aliguori | 06d55cc | 2008-11-18 20:24:06 +0000 | [diff] [blame] | 1500 | } |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 1501 | } else { |
| 1502 | wp->flags &= ~BP_WATCHPOINT_HIT; |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1503 | } |
| 1504 | } |
| 1505 | } |
| 1506 | |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1507 | /* Watchpoint access routines. Watchpoints are inserted using TLB tricks, |
| 1508 | so these check for a hit then pass through to the normal out-of-line |
| 1509 | phys routines. */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1510 | static uint64_t watch_mem_read(void *opaque, hwaddr addr, |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1511 | unsigned size) |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1512 | { |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1513 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~(size - 1), BP_MEM_READ); |
| 1514 | switch (size) { |
| 1515 | case 1: return ldub_phys(addr); |
| 1516 | case 2: return lduw_phys(addr); |
| 1517 | case 4: return ldl_phys(addr); |
| 1518 | default: abort(); |
| 1519 | } |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1520 | } |
| 1521 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1522 | static void watch_mem_write(void *opaque, hwaddr addr, |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1523 | uint64_t val, unsigned size) |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1524 | { |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1525 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~(size - 1), BP_MEM_WRITE); |
| 1526 | switch (size) { |
Max Filippov | 6736415 | 2012-01-29 00:01:40 +0400 | [diff] [blame] | 1527 | case 1: |
| 1528 | stb_phys(addr, val); |
| 1529 | break; |
| 1530 | case 2: |
| 1531 | stw_phys(addr, val); |
| 1532 | break; |
| 1533 | case 4: |
| 1534 | stl_phys(addr, val); |
| 1535 | break; |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1536 | default: abort(); |
| 1537 | } |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1538 | } |
| 1539 | |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1540 | static const MemoryRegionOps watch_mem_ops = { |
| 1541 | .read = watch_mem_read, |
| 1542 | .write = watch_mem_write, |
| 1543 | .endianness = DEVICE_NATIVE_ENDIAN, |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1544 | }; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1545 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1546 | static uint64_t subpage_read(void *opaque, hwaddr addr, |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1547 | unsigned len) |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1548 | { |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1549 | subpage_t *mmio = opaque; |
Richard Henderson | f640524 | 2010-04-22 16:47:31 -0700 | [diff] [blame] | 1550 | unsigned int idx = SUBPAGE_IDX(addr); |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1551 | MemoryRegionSection *section; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1552 | #if defined(DEBUG_SUBPAGE) |
| 1553 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d\n", __func__, |
| 1554 | mmio, len, addr, idx); |
| 1555 | #endif |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1556 | |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1557 | section = &phys_sections[mmio->sub_section[idx]]; |
| 1558 | addr += mmio->base; |
| 1559 | addr -= section->offset_within_address_space; |
| 1560 | addr += section->offset_within_region; |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1561 | return io_mem_read(section->mr, addr, len); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1562 | } |
| 1563 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1564 | static void subpage_write(void *opaque, hwaddr addr, |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1565 | uint64_t value, unsigned len) |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1566 | { |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1567 | subpage_t *mmio = opaque; |
Richard Henderson | f640524 | 2010-04-22 16:47:31 -0700 | [diff] [blame] | 1568 | unsigned int idx = SUBPAGE_IDX(addr); |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1569 | MemoryRegionSection *section; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1570 | #if defined(DEBUG_SUBPAGE) |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1571 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx |
| 1572 | " idx %d value %"PRIx64"\n", |
Richard Henderson | f640524 | 2010-04-22 16:47:31 -0700 | [diff] [blame] | 1573 | __func__, mmio, len, addr, idx, value); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1574 | #endif |
Richard Henderson | f640524 | 2010-04-22 16:47:31 -0700 | [diff] [blame] | 1575 | |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1576 | section = &phys_sections[mmio->sub_section[idx]]; |
| 1577 | addr += mmio->base; |
| 1578 | addr -= section->offset_within_address_space; |
| 1579 | addr += section->offset_within_region; |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1580 | io_mem_write(section->mr, addr, value, len); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1581 | } |
| 1582 | |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1583 | static const MemoryRegionOps subpage_ops = { |
| 1584 | .read = subpage_read, |
| 1585 | .write = subpage_write, |
| 1586 | .endianness = DEVICE_NATIVE_ENDIAN, |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1587 | }; |
| 1588 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1589 | static uint64_t subpage_ram_read(void *opaque, hwaddr addr, |
Avi Kivity | de712f9 | 2012-01-02 12:41:07 +0200 | [diff] [blame] | 1590 | unsigned size) |
Andreas Färber | 56384e8 | 2011-11-30 16:26:21 +0100 | [diff] [blame] | 1591 | { |
| 1592 | ram_addr_t raddr = addr; |
| 1593 | void *ptr = qemu_get_ram_ptr(raddr); |
Avi Kivity | de712f9 | 2012-01-02 12:41:07 +0200 | [diff] [blame] | 1594 | switch (size) { |
| 1595 | case 1: return ldub_p(ptr); |
| 1596 | case 2: return lduw_p(ptr); |
| 1597 | case 4: return ldl_p(ptr); |
| 1598 | default: abort(); |
| 1599 | } |
Andreas Färber | 56384e8 | 2011-11-30 16:26:21 +0100 | [diff] [blame] | 1600 | } |
| 1601 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1602 | static void subpage_ram_write(void *opaque, hwaddr addr, |
Avi Kivity | de712f9 | 2012-01-02 12:41:07 +0200 | [diff] [blame] | 1603 | uint64_t value, unsigned size) |
Andreas Färber | 56384e8 | 2011-11-30 16:26:21 +0100 | [diff] [blame] | 1604 | { |
| 1605 | ram_addr_t raddr = addr; |
| 1606 | void *ptr = qemu_get_ram_ptr(raddr); |
Avi Kivity | de712f9 | 2012-01-02 12:41:07 +0200 | [diff] [blame] | 1607 | switch (size) { |
| 1608 | case 1: return stb_p(ptr, value); |
| 1609 | case 2: return stw_p(ptr, value); |
| 1610 | case 4: return stl_p(ptr, value); |
| 1611 | default: abort(); |
| 1612 | } |
Andreas Färber | 56384e8 | 2011-11-30 16:26:21 +0100 | [diff] [blame] | 1613 | } |
| 1614 | |
Avi Kivity | de712f9 | 2012-01-02 12:41:07 +0200 | [diff] [blame] | 1615 | static const MemoryRegionOps subpage_ram_ops = { |
| 1616 | .read = subpage_ram_read, |
| 1617 | .write = subpage_ram_write, |
| 1618 | .endianness = DEVICE_NATIVE_ENDIAN, |
Andreas Färber | 56384e8 | 2011-11-30 16:26:21 +0100 | [diff] [blame] | 1619 | }; |
| 1620 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1621 | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1622 | uint16_t section) |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1623 | { |
| 1624 | int idx, eidx; |
| 1625 | |
| 1626 | if (start >= TARGET_PAGE_SIZE || end >= TARGET_PAGE_SIZE) |
| 1627 | return -1; |
| 1628 | idx = SUBPAGE_IDX(start); |
| 1629 | eidx = SUBPAGE_IDX(end); |
| 1630 | #if defined(DEBUG_SUBPAGE) |
Blue Swirl | 0bf9e31 | 2009-07-20 17:19:25 +0000 | [diff] [blame] | 1631 | printf("%s: %p start %08x end %08x idx %08x eidx %08x mem %ld\n", __func__, |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1632 | mmio, start, end, idx, eidx, memory); |
| 1633 | #endif |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1634 | if (memory_region_is_ram(phys_sections[section].mr)) { |
| 1635 | MemoryRegionSection new_section = phys_sections[section]; |
| 1636 | new_section.mr = &io_mem_subpage_ram; |
| 1637 | section = phys_section_add(&new_section); |
Andreas Färber | 56384e8 | 2011-11-30 16:26:21 +0100 | [diff] [blame] | 1638 | } |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1639 | for (; idx <= eidx; idx++) { |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1640 | mmio->sub_section[idx] = section; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1641 | } |
| 1642 | |
| 1643 | return 0; |
| 1644 | } |
| 1645 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1646 | static subpage_t *subpage_init(hwaddr base) |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1647 | { |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1648 | subpage_t *mmio; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1649 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1650 | mmio = g_malloc0(sizeof(subpage_t)); |
aliguori | 1eec614 | 2009-02-05 22:06:18 +0000 | [diff] [blame] | 1651 | |
| 1652 | mmio->base = base; |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1653 | memory_region_init_io(&mmio->iomem, &subpage_ops, mmio, |
| 1654 | "subpage", TARGET_PAGE_SIZE); |
Avi Kivity | b3b00c7 | 2012-01-02 13:20:11 +0200 | [diff] [blame] | 1655 | mmio->iomem.subpage = true; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1656 | #if defined(DEBUG_SUBPAGE) |
aliguori | 1eec614 | 2009-02-05 22:06:18 +0000 | [diff] [blame] | 1657 | printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__, |
| 1658 | mmio, base, TARGET_PAGE_SIZE, subpage_memory); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1659 | #endif |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 1660 | subpage_register(mmio, 0, TARGET_PAGE_SIZE-1, phys_section_unassigned); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1661 | |
| 1662 | return mmio; |
| 1663 | } |
| 1664 | |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1665 | static uint16_t dummy_section(MemoryRegion *mr) |
| 1666 | { |
| 1667 | MemoryRegionSection section = { |
| 1668 | .mr = mr, |
| 1669 | .offset_within_address_space = 0, |
| 1670 | .offset_within_region = 0, |
| 1671 | .size = UINT64_MAX, |
| 1672 | }; |
| 1673 | |
| 1674 | return phys_section_add(§ion); |
| 1675 | } |
| 1676 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1677 | MemoryRegion *iotlb_to_region(hwaddr index) |
Avi Kivity | aa10223 | 2012-03-08 17:06:55 +0200 | [diff] [blame] | 1678 | { |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1679 | return phys_sections[index & ~TARGET_PAGE_MASK].mr; |
Avi Kivity | aa10223 | 2012-03-08 17:06:55 +0200 | [diff] [blame] | 1680 | } |
| 1681 | |
Avi Kivity | e9179ce | 2009-06-14 11:38:52 +0300 | [diff] [blame] | 1682 | static void io_mem_init(void) |
| 1683 | { |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1684 | memory_region_init_io(&io_mem_ram, &error_mem_ops, NULL, "ram", UINT64_MAX); |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1685 | memory_region_init_io(&io_mem_rom, &rom_mem_ops, NULL, "rom", UINT64_MAX); |
| 1686 | memory_region_init_io(&io_mem_unassigned, &unassigned_mem_ops, NULL, |
| 1687 | "unassigned", UINT64_MAX); |
| 1688 | memory_region_init_io(&io_mem_notdirty, ¬dirty_mem_ops, NULL, |
| 1689 | "notdirty", UINT64_MAX); |
Avi Kivity | de712f9 | 2012-01-02 12:41:07 +0200 | [diff] [blame] | 1690 | memory_region_init_io(&io_mem_subpage_ram, &subpage_ram_ops, NULL, |
| 1691 | "subpage-ram", UINT64_MAX); |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1692 | memory_region_init_io(&io_mem_watch, &watch_mem_ops, NULL, |
| 1693 | "watch", UINT64_MAX); |
Avi Kivity | e9179ce | 2009-06-14 11:38:52 +0300 | [diff] [blame] | 1694 | } |
| 1695 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1696 | static void mem_begin(MemoryListener *listener) |
| 1697 | { |
| 1698 | AddressSpaceDispatch *d = container_of(listener, AddressSpaceDispatch, listener); |
| 1699 | |
| 1700 | destroy_all_mappings(d); |
| 1701 | d->phys_map.ptr = PHYS_MAP_NODE_NIL; |
| 1702 | } |
| 1703 | |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 1704 | static void core_begin(MemoryListener *listener) |
| 1705 | { |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1706 | phys_sections_clear(); |
| 1707 | phys_section_unassigned = dummy_section(&io_mem_unassigned); |
Avi Kivity | aa10223 | 2012-03-08 17:06:55 +0200 | [diff] [blame] | 1708 | phys_section_notdirty = dummy_section(&io_mem_notdirty); |
| 1709 | phys_section_rom = dummy_section(&io_mem_rom); |
| 1710 | phys_section_watch = dummy_section(&io_mem_watch); |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 1711 | } |
| 1712 | |
Avi Kivity | 1d71148 | 2012-10-02 18:54:45 +0200 | [diff] [blame] | 1713 | static void tcg_commit(MemoryListener *listener) |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 1714 | { |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 1715 | CPUArchState *env; |
Avi Kivity | 117712c | 2012-02-12 21:23:17 +0200 | [diff] [blame] | 1716 | |
| 1717 | /* since each CPU stores ram addresses in its TLB cache, we must |
| 1718 | reset the modified entries */ |
| 1719 | /* XXX: slow ! */ |
| 1720 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
| 1721 | tlb_flush(env, 1); |
| 1722 | } |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 1723 | } |
| 1724 | |
Avi Kivity | 9363274 | 2012-02-08 16:54:16 +0200 | [diff] [blame] | 1725 | static void core_log_global_start(MemoryListener *listener) |
| 1726 | { |
| 1727 | cpu_physical_memory_set_dirty_tracking(1); |
| 1728 | } |
| 1729 | |
| 1730 | static void core_log_global_stop(MemoryListener *listener) |
| 1731 | { |
| 1732 | cpu_physical_memory_set_dirty_tracking(0); |
| 1733 | } |
| 1734 | |
Avi Kivity | 4855d41 | 2012-02-08 21:16:05 +0200 | [diff] [blame] | 1735 | static void io_region_add(MemoryListener *listener, |
| 1736 | MemoryRegionSection *section) |
| 1737 | { |
Avi Kivity | a2d3352 | 2012-03-05 17:40:12 +0200 | [diff] [blame] | 1738 | MemoryRegionIORange *mrio = g_new(MemoryRegionIORange, 1); |
| 1739 | |
| 1740 | mrio->mr = section->mr; |
| 1741 | mrio->offset = section->offset_within_region; |
| 1742 | iorange_init(&mrio->iorange, &memory_region_iorange_ops, |
Avi Kivity | 4855d41 | 2012-02-08 21:16:05 +0200 | [diff] [blame] | 1743 | section->offset_within_address_space, section->size); |
Avi Kivity | a2d3352 | 2012-03-05 17:40:12 +0200 | [diff] [blame] | 1744 | ioport_register(&mrio->iorange); |
Avi Kivity | 4855d41 | 2012-02-08 21:16:05 +0200 | [diff] [blame] | 1745 | } |
| 1746 | |
| 1747 | static void io_region_del(MemoryListener *listener, |
| 1748 | MemoryRegionSection *section) |
| 1749 | { |
| 1750 | isa_unassign_ioport(section->offset_within_address_space, section->size); |
| 1751 | } |
| 1752 | |
Avi Kivity | 9363274 | 2012-02-08 16:54:16 +0200 | [diff] [blame] | 1753 | static MemoryListener core_memory_listener = { |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 1754 | .begin = core_begin, |
Avi Kivity | 9363274 | 2012-02-08 16:54:16 +0200 | [diff] [blame] | 1755 | .log_global_start = core_log_global_start, |
| 1756 | .log_global_stop = core_log_global_stop, |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1757 | .priority = 1, |
Avi Kivity | 9363274 | 2012-02-08 16:54:16 +0200 | [diff] [blame] | 1758 | }; |
| 1759 | |
Avi Kivity | 4855d41 | 2012-02-08 21:16:05 +0200 | [diff] [blame] | 1760 | static MemoryListener io_memory_listener = { |
| 1761 | .region_add = io_region_add, |
| 1762 | .region_del = io_region_del, |
Avi Kivity | 4855d41 | 2012-02-08 21:16:05 +0200 | [diff] [blame] | 1763 | .priority = 0, |
| 1764 | }; |
| 1765 | |
Avi Kivity | 1d71148 | 2012-10-02 18:54:45 +0200 | [diff] [blame] | 1766 | static MemoryListener tcg_memory_listener = { |
| 1767 | .commit = tcg_commit, |
| 1768 | }; |
| 1769 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1770 | void address_space_init_dispatch(AddressSpace *as) |
| 1771 | { |
| 1772 | AddressSpaceDispatch *d = g_new(AddressSpaceDispatch, 1); |
| 1773 | |
| 1774 | d->phys_map = (PhysPageEntry) { .ptr = PHYS_MAP_NODE_NIL, .is_leaf = 0 }; |
| 1775 | d->listener = (MemoryListener) { |
| 1776 | .begin = mem_begin, |
| 1777 | .region_add = mem_add, |
| 1778 | .region_nop = mem_add, |
| 1779 | .priority = 0, |
| 1780 | }; |
| 1781 | as->dispatch = d; |
| 1782 | memory_listener_register(&d->listener, as); |
| 1783 | } |
| 1784 | |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 1785 | void address_space_destroy_dispatch(AddressSpace *as) |
| 1786 | { |
| 1787 | AddressSpaceDispatch *d = as->dispatch; |
| 1788 | |
| 1789 | memory_listener_unregister(&d->listener); |
| 1790 | destroy_l2_mapping(&d->phys_map, P_L2_LEVELS - 1); |
| 1791 | g_free(d); |
| 1792 | as->dispatch = NULL; |
| 1793 | } |
| 1794 | |
Avi Kivity | 62152b8 | 2011-07-26 14:26:14 +0300 | [diff] [blame] | 1795 | static void memory_map_init(void) |
| 1796 | { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1797 | system_memory = g_malloc(sizeof(*system_memory)); |
Avi Kivity | 8417ceb | 2011-08-03 11:56:14 +0300 | [diff] [blame] | 1798 | memory_region_init(system_memory, "system", INT64_MAX); |
Avi Kivity | 2673a5d | 2012-10-02 18:49:28 +0200 | [diff] [blame] | 1799 | address_space_init(&address_space_memory, system_memory); |
| 1800 | address_space_memory.name = "memory"; |
Avi Kivity | 309cb47 | 2011-08-08 16:09:03 +0300 | [diff] [blame] | 1801 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1802 | system_io = g_malloc(sizeof(*system_io)); |
Avi Kivity | 309cb47 | 2011-08-08 16:09:03 +0300 | [diff] [blame] | 1803 | memory_region_init(system_io, "io", 65536); |
Avi Kivity | 2673a5d | 2012-10-02 18:49:28 +0200 | [diff] [blame] | 1804 | address_space_init(&address_space_io, system_io); |
| 1805 | address_space_io.name = "I/O"; |
Avi Kivity | 9363274 | 2012-02-08 16:54:16 +0200 | [diff] [blame] | 1806 | |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 1807 | memory_listener_register(&core_memory_listener, &address_space_memory); |
| 1808 | memory_listener_register(&io_memory_listener, &address_space_io); |
| 1809 | memory_listener_register(&tcg_memory_listener, &address_space_memory); |
Peter Maydell | 9e11908 | 2012-10-29 11:34:32 +1000 | [diff] [blame] | 1810 | |
| 1811 | dma_context_init(&dma_context_memory, &address_space_memory, |
| 1812 | NULL, NULL, NULL); |
Avi Kivity | 62152b8 | 2011-07-26 14:26:14 +0300 | [diff] [blame] | 1813 | } |
| 1814 | |
| 1815 | MemoryRegion *get_system_memory(void) |
| 1816 | { |
| 1817 | return system_memory; |
| 1818 | } |
| 1819 | |
Avi Kivity | 309cb47 | 2011-08-08 16:09:03 +0300 | [diff] [blame] | 1820 | MemoryRegion *get_system_io(void) |
| 1821 | { |
| 1822 | return system_io; |
| 1823 | } |
| 1824 | |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 1825 | #endif /* !defined(CONFIG_USER_ONLY) */ |
| 1826 | |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1827 | /* physical memory access (slow version, mainly for debug) */ |
| 1828 | #if defined(CONFIG_USER_ONLY) |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 1829 | int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr, |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1830 | uint8_t *buf, int len, int is_write) |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1831 | { |
| 1832 | int l, flags; |
| 1833 | target_ulong page; |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 1834 | void * p; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1835 | |
| 1836 | while (len > 0) { |
| 1837 | page = addr & TARGET_PAGE_MASK; |
| 1838 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 1839 | if (l > len) |
| 1840 | l = len; |
| 1841 | flags = page_get_flags(page); |
| 1842 | if (!(flags & PAGE_VALID)) |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1843 | return -1; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1844 | if (is_write) { |
| 1845 | if (!(flags & PAGE_WRITE)) |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1846 | return -1; |
bellard | 579a97f | 2007-11-11 14:26:47 +0000 | [diff] [blame] | 1847 | /* XXX: this code should not depend on lock_user */ |
aurel32 | 72fb7da | 2008-04-27 23:53:45 +0000 | [diff] [blame] | 1848 | if (!(p = lock_user(VERIFY_WRITE, addr, l, 0))) |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1849 | return -1; |
aurel32 | 72fb7da | 2008-04-27 23:53:45 +0000 | [diff] [blame] | 1850 | memcpy(p, buf, l); |
| 1851 | unlock_user(p, addr, l); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1852 | } else { |
| 1853 | if (!(flags & PAGE_READ)) |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1854 | return -1; |
bellard | 579a97f | 2007-11-11 14:26:47 +0000 | [diff] [blame] | 1855 | /* XXX: this code should not depend on lock_user */ |
aurel32 | 72fb7da | 2008-04-27 23:53:45 +0000 | [diff] [blame] | 1856 | if (!(p = lock_user(VERIFY_READ, addr, l, 1))) |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1857 | return -1; |
aurel32 | 72fb7da | 2008-04-27 23:53:45 +0000 | [diff] [blame] | 1858 | memcpy(buf, p, l); |
aurel32 | 5b25757 | 2008-04-28 08:54:59 +0000 | [diff] [blame] | 1859 | unlock_user(p, addr, 0); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1860 | } |
| 1861 | len -= l; |
| 1862 | buf += l; |
| 1863 | addr += l; |
| 1864 | } |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1865 | return 0; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1866 | } |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 1867 | |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1868 | #else |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 1869 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1870 | static void invalidate_and_set_dirty(hwaddr addr, |
| 1871 | hwaddr length) |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 1872 | { |
| 1873 | if (!cpu_physical_memory_is_dirty(addr)) { |
| 1874 | /* invalidate code */ |
| 1875 | tb_invalidate_phys_page_range(addr, addr + length, 0); |
| 1876 | /* set dirty bit */ |
| 1877 | cpu_physical_memory_set_dirty_flags(addr, (0xff & ~CODE_DIRTY_FLAG)); |
| 1878 | } |
Anthony PERARD | e226939 | 2012-10-03 13:49:22 +0000 | [diff] [blame] | 1879 | xen_modified_memory(addr, length); |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 1880 | } |
| 1881 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1882 | void address_space_rw(AddressSpace *as, hwaddr addr, uint8_t *buf, |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1883 | int len, bool is_write) |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1884 | { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1885 | AddressSpaceDispatch *d = as->dispatch; |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1886 | int l; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1887 | uint8_t *ptr; |
| 1888 | uint32_t val; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1889 | hwaddr page; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 1890 | MemoryRegionSection *section; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1891 | |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1892 | while (len > 0) { |
| 1893 | page = addr & TARGET_PAGE_MASK; |
| 1894 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 1895 | if (l > len) |
| 1896 | l = len; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1897 | section = phys_page_find(d, page >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1898 | |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1899 | if (is_write) { |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 1900 | if (!memory_region_is_ram(section->mr)) { |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1901 | hwaddr addr1; |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 1902 | addr1 = memory_region_section_addr(section, addr); |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 1903 | /* XXX: could force cpu_single_env to NULL to avoid |
| 1904 | potential bugs */ |
aurel32 | 6c2934d | 2009-02-18 21:37:17 +0000 | [diff] [blame] | 1905 | if (l >= 4 && ((addr1 & 3) == 0)) { |
bellard | 1c213d1 | 2005-09-03 10:49:04 +0000 | [diff] [blame] | 1906 | /* 32 bit write access */ |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1907 | val = ldl_p(buf); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1908 | io_mem_write(section->mr, addr1, val, 4); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1909 | l = 4; |
aurel32 | 6c2934d | 2009-02-18 21:37:17 +0000 | [diff] [blame] | 1910 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
bellard | 1c213d1 | 2005-09-03 10:49:04 +0000 | [diff] [blame] | 1911 | /* 16 bit write access */ |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1912 | val = lduw_p(buf); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1913 | io_mem_write(section->mr, addr1, val, 2); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1914 | l = 2; |
| 1915 | } else { |
bellard | 1c213d1 | 2005-09-03 10:49:04 +0000 | [diff] [blame] | 1916 | /* 8 bit write access */ |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1917 | val = ldub_p(buf); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1918 | io_mem_write(section->mr, addr1, val, 1); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1919 | l = 1; |
| 1920 | } |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 1921 | } else if (!section->readonly) { |
Anthony PERARD | 8ca5692 | 2011-07-15 04:32:53 +0000 | [diff] [blame] | 1922 | ram_addr_t addr1; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 1923 | addr1 = memory_region_get_ram_addr(section->mr) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 1924 | + memory_region_section_addr(section, addr); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1925 | /* RAM case */ |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 1926 | ptr = qemu_get_ram_ptr(addr1); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1927 | memcpy(ptr, buf, l); |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 1928 | invalidate_and_set_dirty(addr1, l); |
Anthony PERARD | 050a0dd | 2010-09-16 13:57:49 +0100 | [diff] [blame] | 1929 | qemu_put_ram_ptr(ptr); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1930 | } |
| 1931 | } else { |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 1932 | if (!(memory_region_is_ram(section->mr) || |
| 1933 | memory_region_is_romd(section->mr))) { |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1934 | hwaddr addr1; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1935 | /* I/O case */ |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 1936 | addr1 = memory_region_section_addr(section, addr); |
aurel32 | 6c2934d | 2009-02-18 21:37:17 +0000 | [diff] [blame] | 1937 | if (l >= 4 && ((addr1 & 3) == 0)) { |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1938 | /* 32 bit read access */ |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1939 | val = io_mem_read(section->mr, addr1, 4); |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1940 | stl_p(buf, val); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1941 | l = 4; |
aurel32 | 6c2934d | 2009-02-18 21:37:17 +0000 | [diff] [blame] | 1942 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1943 | /* 16 bit read access */ |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1944 | val = io_mem_read(section->mr, addr1, 2); |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1945 | stw_p(buf, val); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1946 | l = 2; |
| 1947 | } else { |
bellard | 1c213d1 | 2005-09-03 10:49:04 +0000 | [diff] [blame] | 1948 | /* 8 bit read access */ |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1949 | val = io_mem_read(section->mr, addr1, 1); |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1950 | stb_p(buf, val); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1951 | l = 1; |
| 1952 | } |
| 1953 | } else { |
| 1954 | /* RAM case */ |
Anthony PERARD | 0a1b357 | 2012-03-19 15:54:34 +0000 | [diff] [blame] | 1955 | ptr = qemu_get_ram_ptr(section->mr->ram_addr |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 1956 | + memory_region_section_addr(section, |
| 1957 | addr)); |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 1958 | memcpy(buf, ptr, l); |
Anthony PERARD | 050a0dd | 2010-09-16 13:57:49 +0100 | [diff] [blame] | 1959 | qemu_put_ram_ptr(ptr); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1960 | } |
| 1961 | } |
| 1962 | len -= l; |
| 1963 | buf += l; |
| 1964 | addr += l; |
| 1965 | } |
| 1966 | } |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 1967 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1968 | void address_space_write(AddressSpace *as, hwaddr addr, |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1969 | const uint8_t *buf, int len) |
| 1970 | { |
| 1971 | address_space_rw(as, addr, (uint8_t *)buf, len, true); |
| 1972 | } |
| 1973 | |
| 1974 | /** |
| 1975 | * address_space_read: read from an address space. |
| 1976 | * |
| 1977 | * @as: #AddressSpace to be accessed |
| 1978 | * @addr: address within that address space |
| 1979 | * @buf: buffer with the data transferred |
| 1980 | */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1981 | void address_space_read(AddressSpace *as, hwaddr addr, uint8_t *buf, int len) |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1982 | { |
| 1983 | address_space_rw(as, addr, buf, len, false); |
| 1984 | } |
| 1985 | |
| 1986 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1987 | void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf, |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1988 | int len, int is_write) |
| 1989 | { |
| 1990 | return address_space_rw(&address_space_memory, addr, buf, len, is_write); |
| 1991 | } |
| 1992 | |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 1993 | /* used for ROM loading : can write in RAM and ROM */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1994 | void cpu_physical_memory_write_rom(hwaddr addr, |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 1995 | const uint8_t *buf, int len) |
| 1996 | { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1997 | AddressSpaceDispatch *d = address_space_memory.dispatch; |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 1998 | int l; |
| 1999 | uint8_t *ptr; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2000 | hwaddr page; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2001 | MemoryRegionSection *section; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2002 | |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 2003 | while (len > 0) { |
| 2004 | page = addr & TARGET_PAGE_MASK; |
| 2005 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2006 | if (l > len) |
| 2007 | l = len; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2008 | section = phys_page_find(d, page >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2009 | |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2010 | if (!(memory_region_is_ram(section->mr) || |
| 2011 | memory_region_is_romd(section->mr))) { |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 2012 | /* do nothing */ |
| 2013 | } else { |
| 2014 | unsigned long addr1; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2015 | addr1 = memory_region_get_ram_addr(section->mr) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2016 | + memory_region_section_addr(section, addr); |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 2017 | /* ROM/RAM case */ |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 2018 | ptr = qemu_get_ram_ptr(addr1); |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 2019 | memcpy(ptr, buf, l); |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 2020 | invalidate_and_set_dirty(addr1, l); |
Anthony PERARD | 050a0dd | 2010-09-16 13:57:49 +0100 | [diff] [blame] | 2021 | qemu_put_ram_ptr(ptr); |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 2022 | } |
| 2023 | len -= l; |
| 2024 | buf += l; |
| 2025 | addr += l; |
| 2026 | } |
| 2027 | } |
| 2028 | |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2029 | typedef struct { |
| 2030 | void *buffer; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2031 | hwaddr addr; |
| 2032 | hwaddr len; |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2033 | } BounceBuffer; |
| 2034 | |
| 2035 | static BounceBuffer bounce; |
| 2036 | |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2037 | typedef struct MapClient { |
| 2038 | void *opaque; |
| 2039 | void (*callback)(void *opaque); |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2040 | QLIST_ENTRY(MapClient) link; |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2041 | } MapClient; |
| 2042 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2043 | static QLIST_HEAD(map_client_list, MapClient) map_client_list |
| 2044 | = QLIST_HEAD_INITIALIZER(map_client_list); |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2045 | |
| 2046 | void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque)) |
| 2047 | { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2048 | MapClient *client = g_malloc(sizeof(*client)); |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2049 | |
| 2050 | client->opaque = opaque; |
| 2051 | client->callback = callback; |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2052 | QLIST_INSERT_HEAD(&map_client_list, client, link); |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2053 | return client; |
| 2054 | } |
| 2055 | |
Blue Swirl | 8b9c99d | 2012-10-28 11:04:51 +0000 | [diff] [blame] | 2056 | static void cpu_unregister_map_client(void *_client) |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2057 | { |
| 2058 | MapClient *client = (MapClient *)_client; |
| 2059 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2060 | QLIST_REMOVE(client, link); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2061 | g_free(client); |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2062 | } |
| 2063 | |
| 2064 | static void cpu_notify_map_clients(void) |
| 2065 | { |
| 2066 | MapClient *client; |
| 2067 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2068 | while (!QLIST_EMPTY(&map_client_list)) { |
| 2069 | client = QLIST_FIRST(&map_client_list); |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2070 | client->callback(client->opaque); |
Isaku Yamahata | 34d5e94 | 2009-06-26 18:57:18 +0900 | [diff] [blame] | 2071 | cpu_unregister_map_client(client); |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2072 | } |
| 2073 | } |
| 2074 | |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2075 | /* Map a physical memory region into a host virtual address. |
| 2076 | * May map a subset of the requested range, given by and returned in *plen. |
| 2077 | * May return NULL if resources needed to perform the mapping are exhausted. |
| 2078 | * Use only for reads OR writes - not for read-modify-write operations. |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2079 | * Use cpu_register_map_client() to know when retrying the map operation is |
| 2080 | * likely to succeed. |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2081 | */ |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2082 | void *address_space_map(AddressSpace *as, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2083 | hwaddr addr, |
| 2084 | hwaddr *plen, |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2085 | bool is_write) |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2086 | { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2087 | AddressSpaceDispatch *d = as->dispatch; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2088 | hwaddr len = *plen; |
| 2089 | hwaddr todo = 0; |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2090 | int l; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2091 | hwaddr page; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2092 | MemoryRegionSection *section; |
Anthony PERARD | f15fbc4 | 2011-07-20 08:17:42 +0000 | [diff] [blame] | 2093 | ram_addr_t raddr = RAM_ADDR_MAX; |
Stefano Stabellini | 8ab934f | 2011-06-27 18:26:06 +0100 | [diff] [blame] | 2094 | ram_addr_t rlen; |
| 2095 | void *ret; |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2096 | |
| 2097 | while (len > 0) { |
| 2098 | page = addr & TARGET_PAGE_MASK; |
| 2099 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2100 | if (l > len) |
| 2101 | l = len; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2102 | section = phys_page_find(d, page >> TARGET_PAGE_BITS); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2103 | |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2104 | if (!(memory_region_is_ram(section->mr) && !section->readonly)) { |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 2105 | if (todo || bounce.buffer) { |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2106 | break; |
| 2107 | } |
| 2108 | bounce.buffer = qemu_memalign(TARGET_PAGE_SIZE, TARGET_PAGE_SIZE); |
| 2109 | bounce.addr = addr; |
| 2110 | bounce.len = l; |
| 2111 | if (!is_write) { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2112 | address_space_read(as, addr, bounce.buffer, l); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2113 | } |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 2114 | |
| 2115 | *plen = l; |
| 2116 | return bounce.buffer; |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2117 | } |
Stefano Stabellini | 8ab934f | 2011-06-27 18:26:06 +0100 | [diff] [blame] | 2118 | if (!todo) { |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2119 | raddr = memory_region_get_ram_addr(section->mr) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2120 | + memory_region_section_addr(section, addr); |
Stefano Stabellini | 8ab934f | 2011-06-27 18:26:06 +0100 | [diff] [blame] | 2121 | } |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2122 | |
| 2123 | len -= l; |
| 2124 | addr += l; |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 2125 | todo += l; |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2126 | } |
Stefano Stabellini | 8ab934f | 2011-06-27 18:26:06 +0100 | [diff] [blame] | 2127 | rlen = todo; |
| 2128 | ret = qemu_ram_ptr_length(raddr, &rlen); |
| 2129 | *plen = rlen; |
| 2130 | return ret; |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2131 | } |
| 2132 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2133 | /* Unmaps a memory region previously mapped by address_space_map(). |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2134 | * Will also mark the memory as dirty if is_write == 1. access_len gives |
| 2135 | * the amount of memory that was actually read or written by the caller. |
| 2136 | */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2137 | void address_space_unmap(AddressSpace *as, void *buffer, hwaddr len, |
| 2138 | int is_write, hwaddr access_len) |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2139 | { |
| 2140 | if (buffer != bounce.buffer) { |
| 2141 | if (is_write) { |
Marcelo Tosatti | e890261 | 2010-10-11 15:31:19 -0300 | [diff] [blame] | 2142 | ram_addr_t addr1 = qemu_ram_addr_from_host_nofail(buffer); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2143 | while (access_len) { |
| 2144 | unsigned l; |
| 2145 | l = TARGET_PAGE_SIZE; |
| 2146 | if (l > access_len) |
| 2147 | l = access_len; |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 2148 | invalidate_and_set_dirty(addr1, l); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2149 | addr1 += l; |
| 2150 | access_len -= l; |
| 2151 | } |
| 2152 | } |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 2153 | if (xen_enabled()) { |
Jan Kiszka | e41d7c6 | 2011-06-21 22:59:08 +0200 | [diff] [blame] | 2154 | xen_invalidate_map_cache_entry(buffer); |
Anthony PERARD | 050a0dd | 2010-09-16 13:57:49 +0100 | [diff] [blame] | 2155 | } |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2156 | return; |
| 2157 | } |
| 2158 | if (is_write) { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2159 | address_space_write(as, bounce.addr, bounce.buffer, access_len); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2160 | } |
Herve Poussineau | f8a8324 | 2010-01-24 21:23:56 +0000 | [diff] [blame] | 2161 | qemu_vfree(bounce.buffer); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2162 | bounce.buffer = NULL; |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2163 | cpu_notify_map_clients(); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2164 | } |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 2165 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2166 | void *cpu_physical_memory_map(hwaddr addr, |
| 2167 | hwaddr *plen, |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2168 | int is_write) |
| 2169 | { |
| 2170 | return address_space_map(&address_space_memory, addr, plen, is_write); |
| 2171 | } |
| 2172 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2173 | void cpu_physical_memory_unmap(void *buffer, hwaddr len, |
| 2174 | int is_write, hwaddr access_len) |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2175 | { |
| 2176 | return address_space_unmap(&address_space_memory, buffer, len, is_write, access_len); |
| 2177 | } |
| 2178 | |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2179 | /* warning: addr must be aligned */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2180 | static inline uint32_t ldl_phys_internal(hwaddr addr, |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2181 | enum device_endian endian) |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2182 | { |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2183 | uint8_t *ptr; |
| 2184 | uint32_t val; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2185 | MemoryRegionSection *section; |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2186 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2187 | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2188 | |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2189 | if (!(memory_region_is_ram(section->mr) || |
| 2190 | memory_region_is_romd(section->mr))) { |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2191 | /* I/O case */ |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2192 | addr = memory_region_section_addr(section, addr); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2193 | val = io_mem_read(section->mr, addr, 4); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2194 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2195 | if (endian == DEVICE_LITTLE_ENDIAN) { |
| 2196 | val = bswap32(val); |
| 2197 | } |
| 2198 | #else |
| 2199 | if (endian == DEVICE_BIG_ENDIAN) { |
| 2200 | val = bswap32(val); |
| 2201 | } |
| 2202 | #endif |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2203 | } else { |
| 2204 | /* RAM case */ |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2205 | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
Avi Kivity | 06ef352 | 2012-02-13 16:11:22 +0200 | [diff] [blame] | 2206 | & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2207 | + memory_region_section_addr(section, addr)); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2208 | switch (endian) { |
| 2209 | case DEVICE_LITTLE_ENDIAN: |
| 2210 | val = ldl_le_p(ptr); |
| 2211 | break; |
| 2212 | case DEVICE_BIG_ENDIAN: |
| 2213 | val = ldl_be_p(ptr); |
| 2214 | break; |
| 2215 | default: |
| 2216 | val = ldl_p(ptr); |
| 2217 | break; |
| 2218 | } |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2219 | } |
| 2220 | return val; |
| 2221 | } |
| 2222 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2223 | uint32_t ldl_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2224 | { |
| 2225 | return ldl_phys_internal(addr, DEVICE_NATIVE_ENDIAN); |
| 2226 | } |
| 2227 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2228 | uint32_t ldl_le_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2229 | { |
| 2230 | return ldl_phys_internal(addr, DEVICE_LITTLE_ENDIAN); |
| 2231 | } |
| 2232 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2233 | uint32_t ldl_be_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2234 | { |
| 2235 | return ldl_phys_internal(addr, DEVICE_BIG_ENDIAN); |
| 2236 | } |
| 2237 | |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2238 | /* warning: addr must be aligned */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2239 | static inline uint64_t ldq_phys_internal(hwaddr addr, |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2240 | enum device_endian endian) |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2241 | { |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2242 | uint8_t *ptr; |
| 2243 | uint64_t val; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2244 | MemoryRegionSection *section; |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2245 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2246 | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2247 | |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2248 | if (!(memory_region_is_ram(section->mr) || |
| 2249 | memory_region_is_romd(section->mr))) { |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2250 | /* I/O case */ |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2251 | addr = memory_region_section_addr(section, addr); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2252 | |
| 2253 | /* XXX This is broken when device endian != cpu endian. |
| 2254 | Fix and add "endian" variable check */ |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2255 | #ifdef TARGET_WORDS_BIGENDIAN |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2256 | val = io_mem_read(section->mr, addr, 4) << 32; |
| 2257 | val |= io_mem_read(section->mr, addr + 4, 4); |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2258 | #else |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2259 | val = io_mem_read(section->mr, addr, 4); |
| 2260 | val |= io_mem_read(section->mr, addr + 4, 4) << 32; |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2261 | #endif |
| 2262 | } else { |
| 2263 | /* RAM case */ |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2264 | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
Avi Kivity | 06ef352 | 2012-02-13 16:11:22 +0200 | [diff] [blame] | 2265 | & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2266 | + memory_region_section_addr(section, addr)); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2267 | switch (endian) { |
| 2268 | case DEVICE_LITTLE_ENDIAN: |
| 2269 | val = ldq_le_p(ptr); |
| 2270 | break; |
| 2271 | case DEVICE_BIG_ENDIAN: |
| 2272 | val = ldq_be_p(ptr); |
| 2273 | break; |
| 2274 | default: |
| 2275 | val = ldq_p(ptr); |
| 2276 | break; |
| 2277 | } |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2278 | } |
| 2279 | return val; |
| 2280 | } |
| 2281 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2282 | uint64_t ldq_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2283 | { |
| 2284 | return ldq_phys_internal(addr, DEVICE_NATIVE_ENDIAN); |
| 2285 | } |
| 2286 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2287 | uint64_t ldq_le_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2288 | { |
| 2289 | return ldq_phys_internal(addr, DEVICE_LITTLE_ENDIAN); |
| 2290 | } |
| 2291 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2292 | uint64_t ldq_be_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2293 | { |
| 2294 | return ldq_phys_internal(addr, DEVICE_BIG_ENDIAN); |
| 2295 | } |
| 2296 | |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2297 | /* XXX: optimize */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2298 | uint32_t ldub_phys(hwaddr addr) |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2299 | { |
| 2300 | uint8_t val; |
| 2301 | cpu_physical_memory_read(addr, &val, 1); |
| 2302 | return val; |
| 2303 | } |
| 2304 | |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2305 | /* warning: addr must be aligned */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2306 | static inline uint32_t lduw_phys_internal(hwaddr addr, |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2307 | enum device_endian endian) |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2308 | { |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2309 | uint8_t *ptr; |
| 2310 | uint64_t val; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2311 | MemoryRegionSection *section; |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2312 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2313 | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2314 | |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2315 | if (!(memory_region_is_ram(section->mr) || |
| 2316 | memory_region_is_romd(section->mr))) { |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2317 | /* I/O case */ |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2318 | addr = memory_region_section_addr(section, addr); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2319 | val = io_mem_read(section->mr, addr, 2); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2320 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2321 | if (endian == DEVICE_LITTLE_ENDIAN) { |
| 2322 | val = bswap16(val); |
| 2323 | } |
| 2324 | #else |
| 2325 | if (endian == DEVICE_BIG_ENDIAN) { |
| 2326 | val = bswap16(val); |
| 2327 | } |
| 2328 | #endif |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2329 | } else { |
| 2330 | /* RAM case */ |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2331 | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
Avi Kivity | 06ef352 | 2012-02-13 16:11:22 +0200 | [diff] [blame] | 2332 | & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2333 | + memory_region_section_addr(section, addr)); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2334 | switch (endian) { |
| 2335 | case DEVICE_LITTLE_ENDIAN: |
| 2336 | val = lduw_le_p(ptr); |
| 2337 | break; |
| 2338 | case DEVICE_BIG_ENDIAN: |
| 2339 | val = lduw_be_p(ptr); |
| 2340 | break; |
| 2341 | default: |
| 2342 | val = lduw_p(ptr); |
| 2343 | break; |
| 2344 | } |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2345 | } |
| 2346 | return val; |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2347 | } |
| 2348 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2349 | uint32_t lduw_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2350 | { |
| 2351 | return lduw_phys_internal(addr, DEVICE_NATIVE_ENDIAN); |
| 2352 | } |
| 2353 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2354 | uint32_t lduw_le_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2355 | { |
| 2356 | return lduw_phys_internal(addr, DEVICE_LITTLE_ENDIAN); |
| 2357 | } |
| 2358 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2359 | uint32_t lduw_be_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2360 | { |
| 2361 | return lduw_phys_internal(addr, DEVICE_BIG_ENDIAN); |
| 2362 | } |
| 2363 | |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2364 | /* warning: addr must be aligned. The ram page is not masked as dirty |
| 2365 | and the code inside is not invalidated. It is useful if the dirty |
| 2366 | bits are used to track modified PTEs */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2367 | void stl_phys_notdirty(hwaddr addr, uint32_t val) |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2368 | { |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2369 | uint8_t *ptr; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2370 | MemoryRegionSection *section; |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2371 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2372 | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2373 | |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2374 | if (!memory_region_is_ram(section->mr) || section->readonly) { |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2375 | addr = memory_region_section_addr(section, addr); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2376 | if (memory_region_is_ram(section->mr)) { |
| 2377 | section = &phys_sections[phys_section_rom]; |
| 2378 | } |
| 2379 | io_mem_write(section->mr, addr, val, 4); |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2380 | } else { |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2381 | unsigned long addr1 = (memory_region_get_ram_addr(section->mr) |
Avi Kivity | 06ef352 | 2012-02-13 16:11:22 +0200 | [diff] [blame] | 2382 | & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2383 | + memory_region_section_addr(section, addr); |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 2384 | ptr = qemu_get_ram_ptr(addr1); |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2385 | stl_p(ptr, val); |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 2386 | |
| 2387 | if (unlikely(in_migration)) { |
| 2388 | if (!cpu_physical_memory_is_dirty(addr1)) { |
| 2389 | /* invalidate code */ |
| 2390 | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
| 2391 | /* set dirty bit */ |
Yoshiaki Tamura | f7c11b5 | 2010-03-23 16:39:53 +0900 | [diff] [blame] | 2392 | cpu_physical_memory_set_dirty_flags( |
| 2393 | addr1, (0xff & ~CODE_DIRTY_FLAG)); |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 2394 | } |
| 2395 | } |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2396 | } |
| 2397 | } |
| 2398 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2399 | void stq_phys_notdirty(hwaddr addr, uint64_t val) |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2400 | { |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2401 | uint8_t *ptr; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2402 | MemoryRegionSection *section; |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2403 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2404 | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2405 | |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2406 | if (!memory_region_is_ram(section->mr) || section->readonly) { |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2407 | addr = memory_region_section_addr(section, addr); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2408 | if (memory_region_is_ram(section->mr)) { |
| 2409 | section = &phys_sections[phys_section_rom]; |
| 2410 | } |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2411 | #ifdef TARGET_WORDS_BIGENDIAN |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2412 | io_mem_write(section->mr, addr, val >> 32, 4); |
| 2413 | io_mem_write(section->mr, addr + 4, (uint32_t)val, 4); |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2414 | #else |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2415 | io_mem_write(section->mr, addr, (uint32_t)val, 4); |
| 2416 | io_mem_write(section->mr, addr + 4, val >> 32, 4); |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2417 | #endif |
| 2418 | } else { |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2419 | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
Avi Kivity | 06ef352 | 2012-02-13 16:11:22 +0200 | [diff] [blame] | 2420 | & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2421 | + memory_region_section_addr(section, addr)); |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2422 | stq_p(ptr, val); |
| 2423 | } |
| 2424 | } |
| 2425 | |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2426 | /* warning: addr must be aligned */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2427 | static inline void stl_phys_internal(hwaddr addr, uint32_t val, |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2428 | enum device_endian endian) |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2429 | { |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2430 | uint8_t *ptr; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2431 | MemoryRegionSection *section; |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2432 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2433 | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2434 | |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2435 | if (!memory_region_is_ram(section->mr) || section->readonly) { |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2436 | addr = memory_region_section_addr(section, addr); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2437 | if (memory_region_is_ram(section->mr)) { |
| 2438 | section = &phys_sections[phys_section_rom]; |
| 2439 | } |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2440 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2441 | if (endian == DEVICE_LITTLE_ENDIAN) { |
| 2442 | val = bswap32(val); |
| 2443 | } |
| 2444 | #else |
| 2445 | if (endian == DEVICE_BIG_ENDIAN) { |
| 2446 | val = bswap32(val); |
| 2447 | } |
| 2448 | #endif |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2449 | io_mem_write(section->mr, addr, val, 4); |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2450 | } else { |
| 2451 | unsigned long addr1; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2452 | addr1 = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2453 | + memory_region_section_addr(section, addr); |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2454 | /* RAM case */ |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 2455 | ptr = qemu_get_ram_ptr(addr1); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2456 | switch (endian) { |
| 2457 | case DEVICE_LITTLE_ENDIAN: |
| 2458 | stl_le_p(ptr, val); |
| 2459 | break; |
| 2460 | case DEVICE_BIG_ENDIAN: |
| 2461 | stl_be_p(ptr, val); |
| 2462 | break; |
| 2463 | default: |
| 2464 | stl_p(ptr, val); |
| 2465 | break; |
| 2466 | } |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 2467 | invalidate_and_set_dirty(addr1, 4); |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2468 | } |
| 2469 | } |
| 2470 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2471 | void stl_phys(hwaddr addr, uint32_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2472 | { |
| 2473 | stl_phys_internal(addr, val, DEVICE_NATIVE_ENDIAN); |
| 2474 | } |
| 2475 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2476 | void stl_le_phys(hwaddr addr, uint32_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2477 | { |
| 2478 | stl_phys_internal(addr, val, DEVICE_LITTLE_ENDIAN); |
| 2479 | } |
| 2480 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2481 | void stl_be_phys(hwaddr addr, uint32_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2482 | { |
| 2483 | stl_phys_internal(addr, val, DEVICE_BIG_ENDIAN); |
| 2484 | } |
| 2485 | |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2486 | /* XXX: optimize */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2487 | void stb_phys(hwaddr addr, uint32_t val) |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2488 | { |
| 2489 | uint8_t v = val; |
| 2490 | cpu_physical_memory_write(addr, &v, 1); |
| 2491 | } |
| 2492 | |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2493 | /* warning: addr must be aligned */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2494 | static inline void stw_phys_internal(hwaddr addr, uint32_t val, |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2495 | enum device_endian endian) |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2496 | { |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2497 | uint8_t *ptr; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2498 | MemoryRegionSection *section; |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2499 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2500 | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2501 | |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2502 | if (!memory_region_is_ram(section->mr) || section->readonly) { |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2503 | addr = memory_region_section_addr(section, addr); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2504 | if (memory_region_is_ram(section->mr)) { |
| 2505 | section = &phys_sections[phys_section_rom]; |
| 2506 | } |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2507 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2508 | if (endian == DEVICE_LITTLE_ENDIAN) { |
| 2509 | val = bswap16(val); |
| 2510 | } |
| 2511 | #else |
| 2512 | if (endian == DEVICE_BIG_ENDIAN) { |
| 2513 | val = bswap16(val); |
| 2514 | } |
| 2515 | #endif |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2516 | io_mem_write(section->mr, addr, val, 2); |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2517 | } else { |
| 2518 | unsigned long addr1; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2519 | addr1 = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2520 | + memory_region_section_addr(section, addr); |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2521 | /* RAM case */ |
| 2522 | ptr = qemu_get_ram_ptr(addr1); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2523 | switch (endian) { |
| 2524 | case DEVICE_LITTLE_ENDIAN: |
| 2525 | stw_le_p(ptr, val); |
| 2526 | break; |
| 2527 | case DEVICE_BIG_ENDIAN: |
| 2528 | stw_be_p(ptr, val); |
| 2529 | break; |
| 2530 | default: |
| 2531 | stw_p(ptr, val); |
| 2532 | break; |
| 2533 | } |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 2534 | invalidate_and_set_dirty(addr1, 2); |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2535 | } |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2536 | } |
| 2537 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2538 | void stw_phys(hwaddr addr, uint32_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2539 | { |
| 2540 | stw_phys_internal(addr, val, DEVICE_NATIVE_ENDIAN); |
| 2541 | } |
| 2542 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2543 | void stw_le_phys(hwaddr addr, uint32_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2544 | { |
| 2545 | stw_phys_internal(addr, val, DEVICE_LITTLE_ENDIAN); |
| 2546 | } |
| 2547 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2548 | void stw_be_phys(hwaddr addr, uint32_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2549 | { |
| 2550 | stw_phys_internal(addr, val, DEVICE_BIG_ENDIAN); |
| 2551 | } |
| 2552 | |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2553 | /* XXX: optimize */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2554 | void stq_phys(hwaddr addr, uint64_t val) |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2555 | { |
| 2556 | val = tswap64(val); |
Stefan Weil | 71d2b72 | 2011-03-26 21:06:56 +0100 | [diff] [blame] | 2557 | cpu_physical_memory_write(addr, &val, 8); |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2558 | } |
| 2559 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2560 | void stq_le_phys(hwaddr addr, uint64_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2561 | { |
| 2562 | val = cpu_to_le64(val); |
| 2563 | cpu_physical_memory_write(addr, &val, 8); |
| 2564 | } |
| 2565 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2566 | void stq_be_phys(hwaddr addr, uint64_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2567 | { |
| 2568 | val = cpu_to_be64(val); |
| 2569 | cpu_physical_memory_write(addr, &val, 8); |
| 2570 | } |
| 2571 | |
aliguori | 5e2972f | 2009-03-28 17:51:36 +0000 | [diff] [blame] | 2572 | /* virtual memory access for debug (includes writing to ROM) */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 2573 | int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr, |
bellard | b448f2f | 2004-02-25 23:24:04 +0000 | [diff] [blame] | 2574 | uint8_t *buf, int len, int is_write) |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2575 | { |
| 2576 | int l; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2577 | hwaddr phys_addr; |
j_mayer | 9b3c35e | 2007-04-07 11:21:28 +0000 | [diff] [blame] | 2578 | target_ulong page; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2579 | |
| 2580 | while (len > 0) { |
| 2581 | page = addr & TARGET_PAGE_MASK; |
| 2582 | phys_addr = cpu_get_phys_page_debug(env, page); |
| 2583 | /* if no physical page mapped, return an error */ |
| 2584 | if (phys_addr == -1) |
| 2585 | return -1; |
| 2586 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2587 | if (l > len) |
| 2588 | l = len; |
aliguori | 5e2972f | 2009-03-28 17:51:36 +0000 | [diff] [blame] | 2589 | phys_addr += (addr & ~TARGET_PAGE_MASK); |
aliguori | 5e2972f | 2009-03-28 17:51:36 +0000 | [diff] [blame] | 2590 | if (is_write) |
| 2591 | cpu_physical_memory_write_rom(phys_addr, buf, l); |
| 2592 | else |
aliguori | 5e2972f | 2009-03-28 17:51:36 +0000 | [diff] [blame] | 2593 | cpu_physical_memory_rw(phys_addr, buf, l, is_write); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2594 | len -= l; |
| 2595 | buf += l; |
| 2596 | addr += l; |
| 2597 | } |
| 2598 | return 0; |
| 2599 | } |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 2600 | #endif |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2601 | |
Blue Swirl | 8e4a424 | 2013-01-06 18:30:17 +0000 | [diff] [blame] | 2602 | #if !defined(CONFIG_USER_ONLY) |
| 2603 | |
| 2604 | /* |
| 2605 | * A helper function for the _utterly broken_ virtio device model to find out if |
| 2606 | * it's running on a big endian machine. Don't do this at home kids! |
| 2607 | */ |
| 2608 | bool virtio_is_big_endian(void); |
| 2609 | bool virtio_is_big_endian(void) |
| 2610 | { |
| 2611 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2612 | return true; |
| 2613 | #else |
| 2614 | return false; |
| 2615 | #endif |
| 2616 | } |
| 2617 | |
| 2618 | #endif |
| 2619 | |
Wen Congyang | 76f3553 | 2012-05-07 12:04:18 +0800 | [diff] [blame] | 2620 | #ifndef CONFIG_USER_ONLY |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2621 | bool cpu_physical_memory_is_io(hwaddr phys_addr) |
Wen Congyang | 76f3553 | 2012-05-07 12:04:18 +0800 | [diff] [blame] | 2622 | { |
| 2623 | MemoryRegionSection *section; |
| 2624 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2625 | section = phys_page_find(address_space_memory.dispatch, |
| 2626 | phys_addr >> TARGET_PAGE_BITS); |
Wen Congyang | 76f3553 | 2012-05-07 12:04:18 +0800 | [diff] [blame] | 2627 | |
| 2628 | return !(memory_region_is_ram(section->mr) || |
| 2629 | memory_region_is_romd(section->mr)); |
| 2630 | } |
| 2631 | #endif |