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 | |
pbrook | 9656f32 | 2008-07-01 20:01:19 +0000 | [diff] [blame] | 222 | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY) |
| 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 | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 226 | CPUArchState *env = 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. */ |
| 230 | env->interrupt_request &= ~0x01; |
pbrook | 9656f32 | 2008-07-01 20:01:19 +0000 | [diff] [blame] | 231 | tlb_flush(env, 1); |
| 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 | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 243 | VMSTATE_UINT32(halted, CPUArchState), |
| 244 | VMSTATE_UINT32(interrupt_request, CPUArchState), |
Juan Quintela | e7f4eff | 2009-09-10 03:04:33 +0200 | [diff] [blame] | 245 | VMSTATE_END_OF_LIST() |
| 246 | } |
| 247 | }; |
pbrook | 9656f32 | 2008-07-01 20:01:19 +0000 | [diff] [blame] | 248 | #endif |
| 249 | |
Andreas Färber | 38d8f5c | 2012-12-17 19:47:15 +0100 | [diff] [blame] | 250 | CPUState *qemu_get_cpu(int index) |
Glauber Costa | 950f147 | 2009-06-09 12:15:18 -0400 | [diff] [blame] | 251 | { |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 252 | CPUArchState *env = first_cpu; |
Andreas Färber | 38d8f5c | 2012-12-17 19:47:15 +0100 | [diff] [blame] | 253 | CPUState *cpu = NULL; |
Glauber Costa | 950f147 | 2009-06-09 12:15:18 -0400 | [diff] [blame] | 254 | |
| 255 | while (env) { |
Andreas Färber | 55e5c28 | 2012-12-17 06:18:02 +0100 | [diff] [blame] | 256 | cpu = ENV_GET_CPU(env); |
| 257 | if (cpu->cpu_index == index) { |
Glauber Costa | 950f147 | 2009-06-09 12:15:18 -0400 | [diff] [blame] | 258 | break; |
Andreas Färber | 55e5c28 | 2012-12-17 06:18:02 +0100 | [diff] [blame] | 259 | } |
Glauber Costa | 950f147 | 2009-06-09 12:15:18 -0400 | [diff] [blame] | 260 | env = env->next_cpu; |
| 261 | } |
| 262 | |
Andreas Färber | 38d8f5c | 2012-12-17 19:47:15 +0100 | [diff] [blame] | 263 | return cpu; |
Glauber Costa | 950f147 | 2009-06-09 12:15:18 -0400 | [diff] [blame] | 264 | } |
| 265 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 266 | void cpu_exec_init(CPUArchState *env) |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 267 | { |
Andreas Färber | 9f09e18 | 2012-05-03 06:59:07 +0200 | [diff] [blame] | 268 | CPUState *cpu = ENV_GET_CPU(env); |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 269 | CPUArchState **penv; |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 270 | int cpu_index; |
| 271 | |
pbrook | c276471 | 2009-03-07 15:24:59 +0000 | [diff] [blame] | 272 | #if defined(CONFIG_USER_ONLY) |
| 273 | cpu_list_lock(); |
| 274 | #endif |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 275 | env->next_cpu = NULL; |
| 276 | penv = &first_cpu; |
| 277 | cpu_index = 0; |
| 278 | while (*penv != NULL) { |
Nathan Froyd | 1e9fa73 | 2009-06-03 11:33:08 -0700 | [diff] [blame] | 279 | penv = &(*penv)->next_cpu; |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 280 | cpu_index++; |
| 281 | } |
Andreas Färber | 55e5c28 | 2012-12-17 06:18:02 +0100 | [diff] [blame] | 282 | cpu->cpu_index = cpu_index; |
Andreas Färber | 1b1ed8d | 2012-12-17 04:22:03 +0100 | [diff] [blame] | 283 | cpu->numa_node = 0; |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 284 | QTAILQ_INIT(&env->breakpoints); |
| 285 | QTAILQ_INIT(&env->watchpoints); |
Jan Kiszka | dc7a09c | 2011-03-15 12:26:31 +0100 | [diff] [blame] | 286 | #ifndef CONFIG_USER_ONLY |
Andreas Färber | 9f09e18 | 2012-05-03 06:59:07 +0200 | [diff] [blame] | 287 | cpu->thread_id = qemu_get_thread_id(); |
Jan Kiszka | dc7a09c | 2011-03-15 12:26:31 +0100 | [diff] [blame] | 288 | #endif |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 289 | *penv = env; |
pbrook | c276471 | 2009-03-07 15:24:59 +0000 | [diff] [blame] | 290 | #if defined(CONFIG_USER_ONLY) |
| 291 | cpu_list_unlock(); |
| 292 | #endif |
pbrook | b3c7724 | 2008-06-30 16:31:04 +0000 | [diff] [blame] | 293 | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY) |
Alex Williamson | 0be71e3 | 2010-06-25 11:09:07 -0600 | [diff] [blame] | 294 | vmstate_register(NULL, cpu_index, &vmstate_cpu_common, env); |
| 295 | register_savevm(NULL, "cpu", cpu_index, CPU_SAVE_VERSION, |
pbrook | b3c7724 | 2008-06-30 16:31:04 +0000 | [diff] [blame] | 296 | cpu_save, cpu_load, env); |
| 297 | #endif |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 298 | } |
| 299 | |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 300 | #if defined(TARGET_HAS_ICE) |
Paul Brook | 94df27f | 2010-02-28 23:47:45 +0000 | [diff] [blame] | 301 | #if defined(CONFIG_USER_ONLY) |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 302 | static void breakpoint_invalidate(CPUArchState *env, target_ulong pc) |
Paul Brook | 94df27f | 2010-02-28 23:47:45 +0000 | [diff] [blame] | 303 | { |
| 304 | tb_invalidate_phys_page_range(pc, pc + 1, 0); |
| 305 | } |
| 306 | #else |
Max Filippov | 1e7855a | 2012-04-10 02:48:17 +0400 | [diff] [blame] | 307 | static void breakpoint_invalidate(CPUArchState *env, target_ulong pc) |
| 308 | { |
Max Filippov | 9d70c4b | 2012-05-27 20:21:08 +0400 | [diff] [blame] | 309 | tb_invalidate_phys_addr(cpu_get_phys_page_debug(env, pc) | |
| 310 | (pc & ~TARGET_PAGE_MASK)); |
Max Filippov | 1e7855a | 2012-04-10 02:48:17 +0400 | [diff] [blame] | 311 | } |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 312 | #endif |
Paul Brook | 94df27f | 2010-02-28 23:47:45 +0000 | [diff] [blame] | 313 | #endif /* TARGET_HAS_ICE */ |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 314 | |
Paul Brook | c527ee8 | 2010-03-01 03:31:14 +0000 | [diff] [blame] | 315 | #if defined(CONFIG_USER_ONLY) |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 316 | void cpu_watchpoint_remove_all(CPUArchState *env, int mask) |
Paul Brook | c527ee8 | 2010-03-01 03:31:14 +0000 | [diff] [blame] | 317 | |
| 318 | { |
| 319 | } |
| 320 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 321 | int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len, |
Paul Brook | c527ee8 | 2010-03-01 03:31:14 +0000 | [diff] [blame] | 322 | int flags, CPUWatchpoint **watchpoint) |
| 323 | { |
| 324 | return -ENOSYS; |
| 325 | } |
| 326 | #else |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 327 | /* Add a watchpoint. */ |
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, |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 329 | int flags, CPUWatchpoint **watchpoint) |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 330 | { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 331 | target_ulong len_mask = ~(len - 1); |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 332 | CPUWatchpoint *wp; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 333 | |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 334 | /* sanity checks: allow power-of-2 lengths, deny unaligned watchpoints */ |
Max Filippov | 0dc2382 | 2012-01-29 03:15:23 +0400 | [diff] [blame] | 335 | if ((len & (len - 1)) || (addr & ~len_mask) || |
| 336 | len == 0 || len > TARGET_PAGE_SIZE) { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 337 | fprintf(stderr, "qemu: tried to set invalid watchpoint at " |
| 338 | TARGET_FMT_lx ", len=" TARGET_FMT_lu "\n", addr, len); |
| 339 | return -EINVAL; |
| 340 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 341 | wp = g_malloc(sizeof(*wp)); |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 342 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 343 | wp->vaddr = addr; |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 344 | wp->len_mask = len_mask; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 345 | wp->flags = flags; |
| 346 | |
aliguori | 2dc9f41 | 2008-11-18 20:56:59 +0000 | [diff] [blame] | 347 | /* keep all GDB-injected watchpoints in front */ |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 348 | if (flags & BP_GDB) |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 349 | QTAILQ_INSERT_HEAD(&env->watchpoints, wp, entry); |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 350 | else |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 351 | QTAILQ_INSERT_TAIL(&env->watchpoints, wp, entry); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 352 | |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 353 | tlb_flush_page(env, addr); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 354 | |
| 355 | if (watchpoint) |
| 356 | *watchpoint = wp; |
| 357 | return 0; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 358 | } |
| 359 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 360 | /* Remove a specific watchpoint. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 361 | int cpu_watchpoint_remove(CPUArchState *env, target_ulong addr, target_ulong len, |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 362 | int flags) |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 363 | { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 364 | target_ulong len_mask = ~(len - 1); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 365 | CPUWatchpoint *wp; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 366 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 367 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 368 | if (addr == wp->vaddr && len_mask == wp->len_mask |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 369 | && flags == (wp->flags & ~BP_WATCHPOINT_HIT)) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 370 | cpu_watchpoint_remove_by_ref(env, wp); |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 371 | return 0; |
| 372 | } |
| 373 | } |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 374 | return -ENOENT; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 375 | } |
| 376 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 377 | /* Remove a specific watchpoint by reference. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 378 | void cpu_watchpoint_remove_by_ref(CPUArchState *env, CPUWatchpoint *watchpoint) |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 379 | { |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 380 | QTAILQ_REMOVE(&env->watchpoints, watchpoint, entry); |
edgar_igl | 7d03f82 | 2008-05-17 18:58:29 +0000 | [diff] [blame] | 381 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 382 | tlb_flush_page(env, watchpoint->vaddr); |
| 383 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 384 | g_free(watchpoint); |
edgar_igl | 7d03f82 | 2008-05-17 18:58:29 +0000 | [diff] [blame] | 385 | } |
| 386 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 387 | /* Remove all matching watchpoints. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 388 | void cpu_watchpoint_remove_all(CPUArchState *env, int mask) |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 389 | { |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 390 | CPUWatchpoint *wp, *next; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 391 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 392 | QTAILQ_FOREACH_SAFE(wp, &env->watchpoints, entry, next) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 393 | if (wp->flags & mask) |
| 394 | cpu_watchpoint_remove_by_ref(env, wp); |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 395 | } |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 396 | } |
Paul Brook | c527ee8 | 2010-03-01 03:31:14 +0000 | [diff] [blame] | 397 | #endif |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 398 | |
| 399 | /* Add a breakpoint. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 400 | int cpu_breakpoint_insert(CPUArchState *env, target_ulong pc, int flags, |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 401 | CPUBreakpoint **breakpoint) |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 402 | { |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 403 | #if defined(TARGET_HAS_ICE) |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 404 | CPUBreakpoint *bp; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 405 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 406 | bp = g_malloc(sizeof(*bp)); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 407 | |
| 408 | bp->pc = pc; |
| 409 | bp->flags = flags; |
| 410 | |
aliguori | 2dc9f41 | 2008-11-18 20:56:59 +0000 | [diff] [blame] | 411 | /* keep all GDB-injected breakpoints in front */ |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 412 | if (flags & BP_GDB) |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 413 | QTAILQ_INSERT_HEAD(&env->breakpoints, bp, entry); |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 414 | else |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 415 | QTAILQ_INSERT_TAIL(&env->breakpoints, bp, entry); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 416 | |
| 417 | breakpoint_invalidate(env, pc); |
| 418 | |
| 419 | if (breakpoint) |
| 420 | *breakpoint = bp; |
| 421 | return 0; |
| 422 | #else |
| 423 | return -ENOSYS; |
| 424 | #endif |
| 425 | } |
| 426 | |
| 427 | /* Remove a specific breakpoint. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 428 | int cpu_breakpoint_remove(CPUArchState *env, target_ulong pc, int flags) |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 429 | { |
| 430 | #if defined(TARGET_HAS_ICE) |
| 431 | CPUBreakpoint *bp; |
| 432 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 433 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 434 | if (bp->pc == pc && bp->flags == flags) { |
| 435 | cpu_breakpoint_remove_by_ref(env, bp); |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 436 | return 0; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 437 | } |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 438 | } |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 439 | return -ENOENT; |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 440 | #else |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 441 | return -ENOSYS; |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 442 | #endif |
| 443 | } |
| 444 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 445 | /* Remove a specific breakpoint by reference. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 446 | void cpu_breakpoint_remove_by_ref(CPUArchState *env, CPUBreakpoint *breakpoint) |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 447 | { |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 448 | #if defined(TARGET_HAS_ICE) |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 449 | QTAILQ_REMOVE(&env->breakpoints, breakpoint, entry); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 450 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 451 | breakpoint_invalidate(env, breakpoint->pc); |
| 452 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 453 | g_free(breakpoint); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 454 | #endif |
| 455 | } |
| 456 | |
| 457 | /* Remove all matching breakpoints. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 458 | void cpu_breakpoint_remove_all(CPUArchState *env, int mask) |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 459 | { |
| 460 | #if defined(TARGET_HAS_ICE) |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 461 | CPUBreakpoint *bp, *next; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 462 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 463 | QTAILQ_FOREACH_SAFE(bp, &env->breakpoints, entry, next) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 464 | if (bp->flags & mask) |
| 465 | cpu_breakpoint_remove_by_ref(env, bp); |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 466 | } |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 467 | #endif |
| 468 | } |
| 469 | |
bellard | c33a346 | 2003-07-29 20:50:33 +0000 | [diff] [blame] | 470 | /* enable or disable single step mode. EXCP_DEBUG is returned by the |
| 471 | CPU loop after each instruction */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 472 | void cpu_single_step(CPUArchState *env, int enabled) |
bellard | c33a346 | 2003-07-29 20:50:33 +0000 | [diff] [blame] | 473 | { |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 474 | #if defined(TARGET_HAS_ICE) |
bellard | c33a346 | 2003-07-29 20:50:33 +0000 | [diff] [blame] | 475 | if (env->singlestep_enabled != enabled) { |
| 476 | env->singlestep_enabled = enabled; |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 477 | if (kvm_enabled()) |
| 478 | kvm_update_guest_debug(env, 0); |
| 479 | else { |
Stuart Brady | ccbb4d4 | 2009-05-03 12:15:06 +0100 | [diff] [blame] | 480 | /* must flush all the translated code to avoid inconsistencies */ |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 481 | /* XXX: only flush what is necessary */ |
| 482 | tb_flush(env); |
| 483 | } |
bellard | c33a346 | 2003-07-29 20:50:33 +0000 | [diff] [blame] | 484 | } |
| 485 | #endif |
| 486 | } |
| 487 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 488 | void cpu_reset_interrupt(CPUArchState *env, int mask) |
bellard | b54ad04 | 2004-05-20 13:42:52 +0000 | [diff] [blame] | 489 | { |
| 490 | env->interrupt_request &= ~mask; |
| 491 | } |
| 492 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 493 | void cpu_exit(CPUArchState *env) |
aurel32 | 3098dba | 2009-03-07 21:28:24 +0000 | [diff] [blame] | 494 | { |
Andreas Färber | fcd7d00 | 2012-12-17 08:02:44 +0100 | [diff] [blame] | 495 | CPUState *cpu = ENV_GET_CPU(env); |
| 496 | |
| 497 | cpu->exit_request = 1; |
Peter Maydell | 378df4b | 2013-02-22 18:10:03 +0000 | [diff] [blame] | 498 | cpu->tcg_exit_req = 1; |
aurel32 | 3098dba | 2009-03-07 21:28:24 +0000 | [diff] [blame] | 499 | } |
| 500 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 501 | void cpu_abort(CPUArchState *env, const char *fmt, ...) |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 502 | { |
| 503 | va_list ap; |
pbrook | 493ae1f | 2007-11-23 16:53:59 +0000 | [diff] [blame] | 504 | va_list ap2; |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 505 | |
| 506 | va_start(ap, fmt); |
pbrook | 493ae1f | 2007-11-23 16:53:59 +0000 | [diff] [blame] | 507 | va_copy(ap2, ap); |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 508 | fprintf(stderr, "qemu: fatal: "); |
| 509 | vfprintf(stderr, fmt, ap); |
| 510 | fprintf(stderr, "\n"); |
Peter Maydell | 6fd2a02 | 2012-10-05 15:04:43 +0100 | [diff] [blame] | 511 | cpu_dump_state(env, stderr, fprintf, CPU_DUMP_FPU | CPU_DUMP_CCOP); |
aliguori | 93fcfe3 | 2009-01-15 22:34:14 +0000 | [diff] [blame] | 512 | if (qemu_log_enabled()) { |
| 513 | qemu_log("qemu: fatal: "); |
| 514 | qemu_log_vprintf(fmt, ap2); |
| 515 | qemu_log("\n"); |
Peter Maydell | 6fd2a02 | 2012-10-05 15:04:43 +0100 | [diff] [blame] | 516 | log_cpu_state(env, CPU_DUMP_FPU | CPU_DUMP_CCOP); |
aliguori | 31b1a7b | 2009-01-15 22:35:09 +0000 | [diff] [blame] | 517 | qemu_log_flush(); |
aliguori | 93fcfe3 | 2009-01-15 22:34:14 +0000 | [diff] [blame] | 518 | qemu_log_close(); |
balrog | 924edca | 2007-06-10 14:07:13 +0000 | [diff] [blame] | 519 | } |
pbrook | 493ae1f | 2007-11-23 16:53:59 +0000 | [diff] [blame] | 520 | va_end(ap2); |
j_mayer | f937329 | 2007-09-29 12:18:20 +0000 | [diff] [blame] | 521 | va_end(ap); |
Riku Voipio | fd052bf | 2010-01-25 14:30:49 +0200 | [diff] [blame] | 522 | #if defined(CONFIG_USER_ONLY) |
| 523 | { |
| 524 | struct sigaction act; |
| 525 | sigfillset(&act.sa_mask); |
| 526 | act.sa_handler = SIG_DFL; |
| 527 | sigaction(SIGABRT, &act, NULL); |
| 528 | } |
| 529 | #endif |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 530 | abort(); |
| 531 | } |
| 532 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 533 | CPUArchState *cpu_copy(CPUArchState *env) |
ths | c5be9f0 | 2007-02-28 20:20:53 +0000 | [diff] [blame] | 534 | { |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 535 | CPUArchState *new_env = cpu_init(env->cpu_model_str); |
| 536 | CPUArchState *next_cpu = new_env->next_cpu; |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 537 | #if defined(TARGET_HAS_ICE) |
| 538 | CPUBreakpoint *bp; |
| 539 | CPUWatchpoint *wp; |
| 540 | #endif |
| 541 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 542 | memcpy(new_env, env, sizeof(CPUArchState)); |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 543 | |
Andreas Färber | 55e5c28 | 2012-12-17 06:18:02 +0100 | [diff] [blame] | 544 | /* Preserve chaining. */ |
ths | c5be9f0 | 2007-02-28 20:20:53 +0000 | [diff] [blame] | 545 | new_env->next_cpu = next_cpu; |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 546 | |
| 547 | /* Clone all break/watchpoints. |
| 548 | Note: Once we support ptrace with hw-debug register access, make sure |
| 549 | BP_CPU break/watchpoints are handled correctly on clone. */ |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 550 | QTAILQ_INIT(&env->breakpoints); |
| 551 | QTAILQ_INIT(&env->watchpoints); |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 552 | #if defined(TARGET_HAS_ICE) |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 553 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 554 | cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL); |
| 555 | } |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 556 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 557 | cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1, |
| 558 | wp->flags, NULL); |
| 559 | } |
| 560 | #endif |
| 561 | |
ths | c5be9f0 | 2007-02-28 20:20:53 +0000 | [diff] [blame] | 562 | return new_env; |
| 563 | } |
| 564 | |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 565 | #if !defined(CONFIG_USER_ONLY) |
Juan Quintela | d24981d | 2012-05-22 00:42:40 +0200 | [diff] [blame] | 566 | static void tlb_reset_dirty_range_all(ram_addr_t start, ram_addr_t end, |
| 567 | uintptr_t length) |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 568 | { |
Juan Quintela | d24981d | 2012-05-22 00:42:40 +0200 | [diff] [blame] | 569 | uintptr_t start1; |
bellard | f23db16 | 2005-08-21 19:12:28 +0000 | [diff] [blame] | 570 | |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 571 | /* we modify the TLB cache so that the dirty bit will be set again |
| 572 | when accessing the range */ |
Stefan Weil | 8efe0ca | 2012-04-12 15:42:19 +0200 | [diff] [blame] | 573 | start1 = (uintptr_t)qemu_safe_ram_ptr(start); |
Stefan Weil | a57d23e | 2011-04-30 22:49:26 +0200 | [diff] [blame] | 574 | /* Check that we don't span multiple blocks - this breaks the |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 575 | address comparisons below. */ |
Stefan Weil | 8efe0ca | 2012-04-12 15:42:19 +0200 | [diff] [blame] | 576 | if ((uintptr_t)qemu_safe_ram_ptr(end - 1) - start1 |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 577 | != (end - 1) - start) { |
| 578 | abort(); |
| 579 | } |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 580 | cpu_tlb_reset_dirty_all(start1, length); |
Juan Quintela | d24981d | 2012-05-22 00:42:40 +0200 | [diff] [blame] | 581 | |
| 582 | } |
| 583 | |
| 584 | /* Note: start and end must be within the same ram block. */ |
| 585 | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end, |
| 586 | int dirty_flags) |
| 587 | { |
| 588 | uintptr_t length; |
| 589 | |
| 590 | start &= TARGET_PAGE_MASK; |
| 591 | end = TARGET_PAGE_ALIGN(end); |
| 592 | |
| 593 | length = end - start; |
| 594 | if (length == 0) |
| 595 | return; |
| 596 | cpu_physical_memory_mask_dirty_range(start, length, dirty_flags); |
| 597 | |
| 598 | if (tcg_enabled()) { |
| 599 | tlb_reset_dirty_range_all(start, end, length); |
| 600 | } |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 601 | } |
| 602 | |
Blue Swirl | 8b9c99d | 2012-10-28 11:04:51 +0000 | [diff] [blame] | 603 | static int cpu_physical_memory_set_dirty_tracking(int enable) |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 604 | { |
Michael S. Tsirkin | f6f3fbc | 2010-01-27 22:06:57 +0200 | [diff] [blame] | 605 | int ret = 0; |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 606 | in_migration = enable; |
Michael S. Tsirkin | f6f3fbc | 2010-01-27 22:06:57 +0200 | [diff] [blame] | 607 | return ret; |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 608 | } |
| 609 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 610 | hwaddr memory_region_section_get_iotlb(CPUArchState *env, |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 611 | MemoryRegionSection *section, |
| 612 | target_ulong vaddr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 613 | hwaddr paddr, |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 614 | int prot, |
| 615 | target_ulong *address) |
| 616 | { |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 617 | hwaddr iotlb; |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 618 | CPUWatchpoint *wp; |
| 619 | |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 620 | if (memory_region_is_ram(section->mr)) { |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 621 | /* Normal RAM. */ |
| 622 | iotlb = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 623 | + memory_region_section_addr(section, paddr); |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 624 | if (!section->readonly) { |
| 625 | iotlb |= phys_section_notdirty; |
| 626 | } else { |
| 627 | iotlb |= phys_section_rom; |
| 628 | } |
| 629 | } else { |
| 630 | /* IO handlers are currently passed a physical address. |
| 631 | It would be nice to pass an offset from the base address |
| 632 | of that region. This would avoid having to special case RAM, |
| 633 | and avoid full address decoding in every device. |
| 634 | We can't use the high bits of pd for this because |
| 635 | IO_MEM_ROMD uses these as a ram address. */ |
| 636 | iotlb = section - phys_sections; |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 637 | iotlb += memory_region_section_addr(section, paddr); |
Blue Swirl | e554861 | 2012-04-21 13:08:33 +0000 | [diff] [blame] | 638 | } |
| 639 | |
| 640 | /* Make accesses to pages with watchpoints go via the |
| 641 | watchpoint trap routines. */ |
| 642 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
| 643 | if (vaddr == (wp->vaddr & TARGET_PAGE_MASK)) { |
| 644 | /* Avoid trapping reads of pages with a write breakpoint. */ |
| 645 | if ((prot & PAGE_WRITE) || (wp->flags & BP_MEM_READ)) { |
| 646 | iotlb = phys_section_watch + paddr; |
| 647 | *address |= TLB_MMIO; |
| 648 | break; |
| 649 | } |
| 650 | } |
| 651 | } |
| 652 | |
| 653 | return iotlb; |
| 654 | } |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 655 | #endif /* defined(CONFIG_USER_ONLY) */ |
| 656 | |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 657 | #if !defined(CONFIG_USER_ONLY) |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 658 | |
Paul Brook | c04b2b7 | 2010-03-01 03:31:14 +0000 | [diff] [blame] | 659 | #define SUBPAGE_IDX(addr) ((addr) & ~TARGET_PAGE_MASK) |
| 660 | typedef struct subpage_t { |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 661 | MemoryRegion iomem; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 662 | hwaddr base; |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 663 | uint16_t sub_section[TARGET_PAGE_SIZE]; |
Paul Brook | c04b2b7 | 2010-03-01 03:31:14 +0000 | [diff] [blame] | 664 | } subpage_t; |
| 665 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 666 | 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] | 667 | uint16_t section); |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 668 | static subpage_t *subpage_init(hwaddr base); |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 669 | static void destroy_page_desc(uint16_t section_index) |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 670 | { |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 671 | MemoryRegionSection *section = &phys_sections[section_index]; |
| 672 | MemoryRegion *mr = section->mr; |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 673 | |
| 674 | if (mr->subpage) { |
| 675 | subpage_t *subpage = container_of(mr, subpage_t, iomem); |
| 676 | memory_region_destroy(&subpage->iomem); |
| 677 | g_free(subpage); |
| 678 | } |
| 679 | } |
| 680 | |
Avi Kivity | 4346ae3 | 2012-02-10 17:00:01 +0200 | [diff] [blame] | 681 | static void destroy_l2_mapping(PhysPageEntry *lp, unsigned level) |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 682 | { |
| 683 | unsigned i; |
Avi Kivity | d6f2ea2 | 2012-02-12 20:12:49 +0200 | [diff] [blame] | 684 | PhysPageEntry *p; |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 685 | |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 686 | if (lp->ptr == PHYS_MAP_NODE_NIL) { |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 687 | return; |
| 688 | } |
| 689 | |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 690 | p = phys_map_nodes[lp->ptr]; |
Avi Kivity | 4346ae3 | 2012-02-10 17:00:01 +0200 | [diff] [blame] | 691 | for (i = 0; i < L2_SIZE; ++i) { |
Avi Kivity | 07f07b3 | 2012-02-13 20:45:32 +0200 | [diff] [blame] | 692 | if (!p[i].is_leaf) { |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 693 | destroy_l2_mapping(&p[i], level - 1); |
Avi Kivity | 4346ae3 | 2012-02-10 17:00:01 +0200 | [diff] [blame] | 694 | } else { |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 695 | destroy_page_desc(p[i].ptr); |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 696 | } |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 697 | } |
Avi Kivity | 07f07b3 | 2012-02-13 20:45:32 +0200 | [diff] [blame] | 698 | lp->is_leaf = 0; |
Avi Kivity | c19e880 | 2012-02-13 20:25:31 +0200 | [diff] [blame] | 699 | lp->ptr = PHYS_MAP_NODE_NIL; |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 700 | } |
| 701 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 702 | static void destroy_all_mappings(AddressSpaceDispatch *d) |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 703 | { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 704 | destroy_l2_mapping(&d->phys_map, P_L2_LEVELS - 1); |
Avi Kivity | d6f2ea2 | 2012-02-12 20:12:49 +0200 | [diff] [blame] | 705 | phys_map_nodes_reset(); |
Avi Kivity | 54688b1 | 2012-02-09 17:34:32 +0200 | [diff] [blame] | 706 | } |
| 707 | |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 708 | static uint16_t phys_section_add(MemoryRegionSection *section) |
| 709 | { |
| 710 | if (phys_sections_nb == phys_sections_nb_alloc) { |
| 711 | phys_sections_nb_alloc = MAX(phys_sections_nb_alloc * 2, 16); |
| 712 | phys_sections = g_renew(MemoryRegionSection, phys_sections, |
| 713 | phys_sections_nb_alloc); |
| 714 | } |
| 715 | phys_sections[phys_sections_nb] = *section; |
| 716 | return phys_sections_nb++; |
| 717 | } |
| 718 | |
| 719 | static void phys_sections_clear(void) |
| 720 | { |
| 721 | phys_sections_nb = 0; |
| 722 | } |
| 723 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 724 | static void register_subpage(AddressSpaceDispatch *d, MemoryRegionSection *section) |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 725 | { |
| 726 | subpage_t *subpage; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 727 | hwaddr base = section->offset_within_address_space |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 728 | & TARGET_PAGE_MASK; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 729 | MemoryRegionSection *existing = phys_page_find(d, base >> TARGET_PAGE_BITS); |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 730 | MemoryRegionSection subsection = { |
| 731 | .offset_within_address_space = base, |
| 732 | .size = TARGET_PAGE_SIZE, |
| 733 | }; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 734 | hwaddr start, end; |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 735 | |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 736 | assert(existing->mr->subpage || existing->mr == &io_mem_unassigned); |
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 | if (!(existing->mr->subpage)) { |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 739 | subpage = subpage_init(base); |
| 740 | subsection.mr = &subpage->iomem; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 741 | phys_page_set(d, base >> TARGET_PAGE_BITS, 1, |
Avi Kivity | 2999097 | 2012-02-13 20:21:20 +0200 | [diff] [blame] | 742 | phys_section_add(&subsection)); |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 743 | } else { |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 744 | subpage = container_of(existing->mr, subpage_t, iomem); |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 745 | } |
| 746 | start = section->offset_within_address_space & ~TARGET_PAGE_MASK; |
Tyler Hall | adb2a9b | 2012-07-25 18:45:03 -0400 | [diff] [blame] | 747 | end = start + section->size - 1; |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 748 | subpage_register(subpage, start, end, phys_section_add(section)); |
| 749 | } |
| 750 | |
| 751 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 752 | static void register_multipage(AddressSpaceDispatch *d, MemoryRegionSection *section) |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 753 | { |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 754 | hwaddr start_addr = section->offset_within_address_space; |
Avi Kivity | dd81124 | 2012-01-02 12:17:03 +0200 | [diff] [blame] | 755 | ram_addr_t size = section->size; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 756 | hwaddr addr; |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 757 | uint16_t section_index = phys_section_add(section); |
Avi Kivity | dd81124 | 2012-01-02 12:17:03 +0200 | [diff] [blame] | 758 | |
Edgar E. Iglesias | 3b8e6a2 | 2011-04-05 13:00:36 +0200 | [diff] [blame] | 759 | assert(size); |
Michael S. Tsirkin | f6f3fbc | 2010-01-27 22:06:57 +0200 | [diff] [blame] | 760 | |
Edgar E. Iglesias | 3b8e6a2 | 2011-04-05 13:00:36 +0200 | [diff] [blame] | 761 | addr = start_addr; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 762 | phys_page_set(d, addr >> TARGET_PAGE_BITS, size >> TARGET_PAGE_BITS, |
Avi Kivity | 2999097 | 2012-02-13 20:21:20 +0200 | [diff] [blame] | 763 | section_index); |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 764 | } |
| 765 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 766 | static void mem_add(MemoryListener *listener, MemoryRegionSection *section) |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 767 | { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 768 | AddressSpaceDispatch *d = container_of(listener, AddressSpaceDispatch, listener); |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 769 | MemoryRegionSection now = *section, remain = *section; |
| 770 | |
| 771 | if ((now.offset_within_address_space & ~TARGET_PAGE_MASK) |
| 772 | || (now.size < TARGET_PAGE_SIZE)) { |
| 773 | now.size = MIN(TARGET_PAGE_ALIGN(now.offset_within_address_space) |
| 774 | - now.offset_within_address_space, |
| 775 | now.size); |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 776 | register_subpage(d, &now); |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 777 | remain.size -= now.size; |
| 778 | remain.offset_within_address_space += now.size; |
| 779 | remain.offset_within_region += now.size; |
| 780 | } |
Tyler Hall | 69b6764 | 2012-07-25 18:45:04 -0400 | [diff] [blame] | 781 | while (remain.size >= TARGET_PAGE_SIZE) { |
| 782 | now = remain; |
| 783 | if (remain.offset_within_region & ~TARGET_PAGE_MASK) { |
| 784 | now.size = TARGET_PAGE_SIZE; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 785 | register_subpage(d, &now); |
Tyler Hall | 69b6764 | 2012-07-25 18:45:04 -0400 | [diff] [blame] | 786 | } else { |
| 787 | now.size &= TARGET_PAGE_MASK; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 788 | register_multipage(d, &now); |
Tyler Hall | 69b6764 | 2012-07-25 18:45:04 -0400 | [diff] [blame] | 789 | } |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 790 | remain.size -= now.size; |
| 791 | remain.offset_within_address_space += now.size; |
| 792 | remain.offset_within_region += now.size; |
| 793 | } |
| 794 | now = remain; |
| 795 | if (now.size) { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 796 | register_subpage(d, &now); |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 797 | } |
| 798 | } |
| 799 | |
Sheng Yang | 62a2744 | 2010-01-26 19:21:16 +0800 | [diff] [blame] | 800 | void qemu_flush_coalesced_mmio_buffer(void) |
| 801 | { |
| 802 | if (kvm_enabled()) |
| 803 | kvm_flush_coalesced_mmio_buffer(); |
| 804 | } |
| 805 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 806 | void qemu_mutex_lock_ramlist(void) |
| 807 | { |
| 808 | qemu_mutex_lock(&ram_list.mutex); |
| 809 | } |
| 810 | |
| 811 | void qemu_mutex_unlock_ramlist(void) |
| 812 | { |
| 813 | qemu_mutex_unlock(&ram_list.mutex); |
| 814 | } |
| 815 | |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 816 | #if defined(__linux__) && !defined(TARGET_S390X) |
| 817 | |
| 818 | #include <sys/vfs.h> |
| 819 | |
| 820 | #define HUGETLBFS_MAGIC 0x958458f6 |
| 821 | |
| 822 | static long gethugepagesize(const char *path) |
| 823 | { |
| 824 | struct statfs fs; |
| 825 | int ret; |
| 826 | |
| 827 | do { |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 828 | ret = statfs(path, &fs); |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 829 | } while (ret != 0 && errno == EINTR); |
| 830 | |
| 831 | if (ret != 0) { |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 832 | perror(path); |
| 833 | return 0; |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 834 | } |
| 835 | |
| 836 | if (fs.f_type != HUGETLBFS_MAGIC) |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 837 | fprintf(stderr, "Warning: path not on HugeTLBFS: %s\n", path); |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 838 | |
| 839 | return fs.f_bsize; |
| 840 | } |
| 841 | |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 842 | static void *file_ram_alloc(RAMBlock *block, |
| 843 | ram_addr_t memory, |
| 844 | const char *path) |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 845 | { |
| 846 | char *filename; |
| 847 | void *area; |
| 848 | int fd; |
| 849 | #ifdef MAP_POPULATE |
| 850 | int flags; |
| 851 | #endif |
| 852 | unsigned long hpagesize; |
| 853 | |
| 854 | hpagesize = gethugepagesize(path); |
| 855 | if (!hpagesize) { |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 856 | return NULL; |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 857 | } |
| 858 | |
| 859 | if (memory < hpagesize) { |
| 860 | return NULL; |
| 861 | } |
| 862 | |
| 863 | if (kvm_enabled() && !kvm_has_sync_mmu()) { |
| 864 | fprintf(stderr, "host lacks kvm mmu notifiers, -mem-path unsupported\n"); |
| 865 | return NULL; |
| 866 | } |
| 867 | |
Stefan Weil | e4ada48 | 2013-01-16 18:37:23 +0100 | [diff] [blame] | 868 | filename = g_strdup_printf("%s/qemu_back_mem.XXXXXX", path); |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 869 | |
| 870 | fd = mkstemp(filename); |
| 871 | if (fd < 0) { |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 872 | perror("unable to create backing store for hugepages"); |
Stefan Weil | e4ada48 | 2013-01-16 18:37:23 +0100 | [diff] [blame] | 873 | g_free(filename); |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 874 | return NULL; |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 875 | } |
| 876 | unlink(filename); |
Stefan Weil | e4ada48 | 2013-01-16 18:37:23 +0100 | [diff] [blame] | 877 | g_free(filename); |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 878 | |
| 879 | memory = (memory+hpagesize-1) & ~(hpagesize-1); |
| 880 | |
| 881 | /* |
| 882 | * ftruncate is not supported by hugetlbfs in older |
| 883 | * hosts, so don't bother bailing out on errors. |
| 884 | * If anything goes wrong with it under other filesystems, |
| 885 | * mmap will fail. |
| 886 | */ |
| 887 | if (ftruncate(fd, memory)) |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 888 | perror("ftruncate"); |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 889 | |
| 890 | #ifdef MAP_POPULATE |
| 891 | /* NB: MAP_POPULATE won't exhaustively alloc all phys pages in the case |
| 892 | * MAP_PRIVATE is requested. For mem_prealloc we mmap as MAP_SHARED |
| 893 | * to sidestep this quirk. |
| 894 | */ |
| 895 | flags = mem_prealloc ? MAP_POPULATE | MAP_SHARED : MAP_PRIVATE; |
| 896 | area = mmap(0, memory, PROT_READ | PROT_WRITE, flags, fd, 0); |
| 897 | #else |
| 898 | area = mmap(0, memory, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); |
| 899 | #endif |
| 900 | if (area == MAP_FAILED) { |
Yoshiaki Tamura | 9742bf2 | 2010-08-18 13:30:13 +0900 | [diff] [blame] | 901 | perror("file_ram_alloc: can't mmap RAM pages"); |
| 902 | close(fd); |
| 903 | return (NULL); |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 904 | } |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 905 | block->fd = fd; |
Marcelo Tosatti | c902760 | 2010-03-01 20:25:08 -0300 | [diff] [blame] | 906 | return area; |
| 907 | } |
| 908 | #endif |
| 909 | |
Alex Williamson | d17b528 | 2010-06-25 11:08:38 -0600 | [diff] [blame] | 910 | static ram_addr_t find_ram_offset(ram_addr_t size) |
| 911 | { |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 912 | RAMBlock *block, *next_block; |
Alex Williamson | 3e837b2 | 2011-10-31 08:54:09 -0600 | [diff] [blame] | 913 | ram_addr_t offset = RAM_ADDR_MAX, mingap = RAM_ADDR_MAX; |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 914 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 915 | if (QTAILQ_EMPTY(&ram_list.blocks)) |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 916 | return 0; |
| 917 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 918 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Anthony PERARD | f15fbc4 | 2011-07-20 08:17:42 +0000 | [diff] [blame] | 919 | ram_addr_t end, next = RAM_ADDR_MAX; |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 920 | |
| 921 | end = block->offset + block->length; |
| 922 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 923 | QTAILQ_FOREACH(next_block, &ram_list.blocks, next) { |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 924 | if (next_block->offset >= end) { |
| 925 | next = MIN(next, next_block->offset); |
| 926 | } |
| 927 | } |
| 928 | if (next - end >= size && next - end < mingap) { |
Alex Williamson | 3e837b2 | 2011-10-31 08:54:09 -0600 | [diff] [blame] | 929 | offset = end; |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 930 | mingap = next - end; |
| 931 | } |
| 932 | } |
Alex Williamson | 3e837b2 | 2011-10-31 08:54:09 -0600 | [diff] [blame] | 933 | |
| 934 | if (offset == RAM_ADDR_MAX) { |
| 935 | fprintf(stderr, "Failed to find gap of requested size: %" PRIu64 "\n", |
| 936 | (uint64_t)size); |
| 937 | abort(); |
| 938 | } |
| 939 | |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 940 | return offset; |
| 941 | } |
| 942 | |
Juan Quintela | 652d7ec | 2012-07-20 10:37:54 +0200 | [diff] [blame] | 943 | ram_addr_t last_ram_offset(void) |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 944 | { |
Alex Williamson | d17b528 | 2010-06-25 11:08:38 -0600 | [diff] [blame] | 945 | RAMBlock *block; |
| 946 | ram_addr_t last = 0; |
| 947 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 948 | QTAILQ_FOREACH(block, &ram_list.blocks, next) |
Alex Williamson | d17b528 | 2010-06-25 11:08:38 -0600 | [diff] [blame] | 949 | last = MAX(last, block->offset + block->length); |
| 950 | |
| 951 | return last; |
| 952 | } |
| 953 | |
Jason Baron | ddb97f1 | 2012-08-02 15:44:16 -0400 | [diff] [blame] | 954 | static void qemu_ram_setup_dump(void *addr, ram_addr_t size) |
| 955 | { |
| 956 | int ret; |
| 957 | QemuOpts *machine_opts; |
| 958 | |
| 959 | /* Use MADV_DONTDUMP, if user doesn't want the guest memory in the core */ |
| 960 | machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0); |
| 961 | if (machine_opts && |
| 962 | !qemu_opt_get_bool(machine_opts, "dump-guest-core", true)) { |
| 963 | ret = qemu_madvise(addr, size, QEMU_MADV_DONTDUMP); |
| 964 | if (ret) { |
| 965 | perror("qemu_madvise"); |
| 966 | fprintf(stderr, "madvise doesn't support MADV_DONTDUMP, " |
| 967 | "but dump_guest_core=off specified\n"); |
| 968 | } |
| 969 | } |
| 970 | } |
| 971 | |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 972 | 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] | 973 | { |
| 974 | RAMBlock *new_block, *block; |
| 975 | |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 976 | new_block = NULL; |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 977 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 978 | if (block->offset == addr) { |
| 979 | new_block = block; |
| 980 | break; |
| 981 | } |
| 982 | } |
| 983 | assert(new_block); |
| 984 | assert(!new_block->idstr[0]); |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 985 | |
Anthony Liguori | 09e5ab6 | 2012-02-03 12:28:43 -0600 | [diff] [blame] | 986 | if (dev) { |
| 987 | char *id = qdev_get_dev_path(dev); |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 988 | if (id) { |
| 989 | snprintf(new_block->idstr, sizeof(new_block->idstr), "%s/", id); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 990 | g_free(id); |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 991 | } |
| 992 | } |
| 993 | pstrcat(new_block->idstr, sizeof(new_block->idstr), name); |
| 994 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 995 | /* This assumes the iothread lock is taken here too. */ |
| 996 | qemu_mutex_lock_ramlist(); |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 997 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 998 | if (block != new_block && !strcmp(block->idstr, new_block->idstr)) { |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 999 | fprintf(stderr, "RAMBlock \"%s\" already registered, abort!\n", |
| 1000 | new_block->idstr); |
| 1001 | abort(); |
| 1002 | } |
| 1003 | } |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1004 | qemu_mutex_unlock_ramlist(); |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1005 | } |
| 1006 | |
Luiz Capitulino | 8490fc7 | 2012-09-05 16:50:16 -0300 | [diff] [blame] | 1007 | static int memory_try_enable_merging(void *addr, size_t len) |
| 1008 | { |
| 1009 | QemuOpts *opts; |
| 1010 | |
| 1011 | opts = qemu_opts_find(qemu_find_opts("machine"), 0); |
| 1012 | if (opts && !qemu_opt_get_bool(opts, "mem-merge", true)) { |
| 1013 | /* disabled by the user */ |
| 1014 | return 0; |
| 1015 | } |
| 1016 | |
| 1017 | return qemu_madvise(addr, len, QEMU_MADV_MERGEABLE); |
| 1018 | } |
| 1019 | |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1020 | ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host, |
| 1021 | MemoryRegion *mr) |
| 1022 | { |
Paolo Bonzini | abb26d6 | 2012-11-14 16:00:51 +0100 | [diff] [blame] | 1023 | RAMBlock *block, *new_block; |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1024 | |
| 1025 | size = TARGET_PAGE_ALIGN(size); |
| 1026 | new_block = g_malloc0(sizeof(*new_block)); |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1027 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1028 | /* This assumes the iothread lock is taken here too. */ |
| 1029 | qemu_mutex_lock_ramlist(); |
Avi Kivity | 7c63736 | 2011-12-21 13:09:49 +0200 | [diff] [blame] | 1030 | new_block->mr = mr; |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1031 | new_block->offset = find_ram_offset(size); |
Yoshiaki Tamura | 6977dfe | 2010-08-18 15:41:49 +0900 | [diff] [blame] | 1032 | if (host) { |
| 1033 | new_block->host = host; |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1034 | new_block->flags |= RAM_PREALLOC_MASK; |
Yoshiaki Tamura | 6977dfe | 2010-08-18 15:41:49 +0900 | [diff] [blame] | 1035 | } else { |
| 1036 | if (mem_path) { |
| 1037 | #if defined (__linux__) && !defined(TARGET_S390X) |
| 1038 | new_block->host = file_ram_alloc(new_block, size, mem_path); |
| 1039 | if (!new_block->host) { |
| 1040 | new_block->host = qemu_vmalloc(size); |
Luiz Capitulino | 8490fc7 | 2012-09-05 16:50:16 -0300 | [diff] [blame] | 1041 | memory_try_enable_merging(new_block->host, size); |
Yoshiaki Tamura | 6977dfe | 2010-08-18 15:41:49 +0900 | [diff] [blame] | 1042 | } |
| 1043 | #else |
| 1044 | fprintf(stderr, "-mem-path option unsupported\n"); |
| 1045 | exit(1); |
| 1046 | #endif |
| 1047 | } else { |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 1048 | if (xen_enabled()) { |
Avi Kivity | fce537d | 2011-12-18 15:48:55 +0200 | [diff] [blame] | 1049 | xen_ram_alloc(new_block->offset, size, mr); |
Christian Borntraeger | fdec991 | 2012-06-15 05:10:30 +0000 | [diff] [blame] | 1050 | } else if (kvm_enabled()) { |
| 1051 | /* some s390/kvm configurations have special constraints */ |
| 1052 | new_block->host = kvm_vmalloc(size); |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1053 | } else { |
| 1054 | new_block->host = qemu_vmalloc(size); |
| 1055 | } |
Luiz Capitulino | 8490fc7 | 2012-09-05 16:50:16 -0300 | [diff] [blame] | 1056 | memory_try_enable_merging(new_block->host, size); |
Yoshiaki Tamura | 6977dfe | 2010-08-18 15:41:49 +0900 | [diff] [blame] | 1057 | } |
| 1058 | } |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1059 | new_block->length = size; |
| 1060 | |
Paolo Bonzini | abb26d6 | 2012-11-14 16:00:51 +0100 | [diff] [blame] | 1061 | /* Keep the list sorted from biggest to smallest block. */ |
| 1062 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1063 | if (block->length < new_block->length) { |
| 1064 | break; |
| 1065 | } |
| 1066 | } |
| 1067 | if (block) { |
| 1068 | QTAILQ_INSERT_BEFORE(block, new_block, next); |
| 1069 | } else { |
| 1070 | QTAILQ_INSERT_TAIL(&ram_list.blocks, new_block, next); |
| 1071 | } |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1072 | ram_list.mru_block = NULL; |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1073 | |
Umesh Deshpande | f798b07 | 2011-08-18 11:41:17 -0700 | [diff] [blame] | 1074 | ram_list.version++; |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1075 | qemu_mutex_unlock_ramlist(); |
Umesh Deshpande | f798b07 | 2011-08-18 11:41:17 -0700 | [diff] [blame] | 1076 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1077 | ram_list.phys_dirty = g_realloc(ram_list.phys_dirty, |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1078 | last_ram_offset() >> TARGET_PAGE_BITS); |
Igor Mitsyanko | 5fda043 | 2012-08-10 18:45:11 +0400 | [diff] [blame] | 1079 | memset(ram_list.phys_dirty + (new_block->offset >> TARGET_PAGE_BITS), |
| 1080 | 0, size >> TARGET_PAGE_BITS); |
Juan Quintela | 1720aee | 2012-06-22 13:14:17 +0200 | [diff] [blame] | 1081 | cpu_physical_memory_set_dirty_range(new_block->offset, size, 0xff); |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1082 | |
Jason Baron | ddb97f1 | 2012-08-02 15:44:16 -0400 | [diff] [blame] | 1083 | qemu_ram_setup_dump(new_block->host, size); |
Luiz Capitulino | ad0b532 | 2012-10-05 16:47:57 -0300 | [diff] [blame] | 1084 | qemu_madvise(new_block->host, size, QEMU_MADV_HUGEPAGE); |
Jason Baron | ddb97f1 | 2012-08-02 15:44:16 -0400 | [diff] [blame] | 1085 | |
Cam Macdonell | 84b89d7 | 2010-07-26 18:10:57 -0600 | [diff] [blame] | 1086 | if (kvm_enabled()) |
| 1087 | kvm_setup_guest_memory(new_block->host, size); |
| 1088 | |
| 1089 | return new_block->offset; |
| 1090 | } |
| 1091 | |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1092 | ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr) |
pbrook | 94a6b54 | 2009-04-11 17:15:54 +0000 | [diff] [blame] | 1093 | { |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1094 | return qemu_ram_alloc_from_ptr(size, NULL, mr); |
pbrook | 94a6b54 | 2009-04-11 17:15:54 +0000 | [diff] [blame] | 1095 | } |
bellard | e9a1ab1 | 2007-02-08 23:08:38 +0000 | [diff] [blame] | 1096 | |
Alex Williamson | 1f2e98b | 2011-05-03 12:48:09 -0600 | [diff] [blame] | 1097 | void qemu_ram_free_from_ptr(ram_addr_t addr) |
| 1098 | { |
| 1099 | RAMBlock *block; |
| 1100 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1101 | /* This assumes the iothread lock is taken here too. */ |
| 1102 | qemu_mutex_lock_ramlist(); |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1103 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Alex Williamson | 1f2e98b | 2011-05-03 12:48:09 -0600 | [diff] [blame] | 1104 | if (addr == block->offset) { |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1105 | QTAILQ_REMOVE(&ram_list.blocks, block, next); |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1106 | ram_list.mru_block = NULL; |
Umesh Deshpande | f798b07 | 2011-08-18 11:41:17 -0700 | [diff] [blame] | 1107 | ram_list.version++; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1108 | g_free(block); |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1109 | break; |
Alex Williamson | 1f2e98b | 2011-05-03 12:48:09 -0600 | [diff] [blame] | 1110 | } |
| 1111 | } |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1112 | qemu_mutex_unlock_ramlist(); |
Alex Williamson | 1f2e98b | 2011-05-03 12:48:09 -0600 | [diff] [blame] | 1113 | } |
| 1114 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1115 | void qemu_ram_free(ram_addr_t addr) |
bellard | e9a1ab1 | 2007-02-08 23:08:38 +0000 | [diff] [blame] | 1116 | { |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1117 | RAMBlock *block; |
| 1118 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1119 | /* This assumes the iothread lock is taken here too. */ |
| 1120 | qemu_mutex_lock_ramlist(); |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1121 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1122 | if (addr == block->offset) { |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1123 | QTAILQ_REMOVE(&ram_list.blocks, block, next); |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1124 | ram_list.mru_block = NULL; |
Umesh Deshpande | f798b07 | 2011-08-18 11:41:17 -0700 | [diff] [blame] | 1125 | ram_list.version++; |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1126 | if (block->flags & RAM_PREALLOC_MASK) { |
| 1127 | ; |
| 1128 | } else if (mem_path) { |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1129 | #if defined (__linux__) && !defined(TARGET_S390X) |
| 1130 | if (block->fd) { |
| 1131 | munmap(block->host, block->length); |
| 1132 | close(block->fd); |
| 1133 | } else { |
| 1134 | qemu_vfree(block->host); |
| 1135 | } |
Jan Kiszka | fd28aa1 | 2011-03-15 12:26:14 +0100 | [diff] [blame] | 1136 | #else |
| 1137 | abort(); |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1138 | #endif |
| 1139 | } else { |
| 1140 | #if defined(TARGET_S390X) && defined(CONFIG_KVM) |
| 1141 | munmap(block->host, block->length); |
| 1142 | #else |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 1143 | if (xen_enabled()) { |
Jan Kiszka | e41d7c6 | 2011-06-21 22:59:08 +0200 | [diff] [blame] | 1144 | xen_invalidate_map_cache_entry(block->host); |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1145 | } else { |
| 1146 | qemu_vfree(block->host); |
| 1147 | } |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1148 | #endif |
| 1149 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1150 | g_free(block); |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1151 | break; |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1152 | } |
| 1153 | } |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1154 | qemu_mutex_unlock_ramlist(); |
Alex Williamson | 04b1665 | 2010-07-02 11:13:17 -0600 | [diff] [blame] | 1155 | |
bellard | e9a1ab1 | 2007-02-08 23:08:38 +0000 | [diff] [blame] | 1156 | } |
| 1157 | |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1158 | #ifndef _WIN32 |
| 1159 | void qemu_ram_remap(ram_addr_t addr, ram_addr_t length) |
| 1160 | { |
| 1161 | RAMBlock *block; |
| 1162 | ram_addr_t offset; |
| 1163 | int flags; |
| 1164 | void *area, *vaddr; |
| 1165 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1166 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1167 | offset = addr - block->offset; |
| 1168 | if (offset < block->length) { |
| 1169 | vaddr = block->host + offset; |
| 1170 | if (block->flags & RAM_PREALLOC_MASK) { |
| 1171 | ; |
| 1172 | } else { |
| 1173 | flags = MAP_FIXED; |
| 1174 | munmap(vaddr, length); |
| 1175 | if (mem_path) { |
| 1176 | #if defined(__linux__) && !defined(TARGET_S390X) |
| 1177 | if (block->fd) { |
| 1178 | #ifdef MAP_POPULATE |
| 1179 | flags |= mem_prealloc ? MAP_POPULATE | MAP_SHARED : |
| 1180 | MAP_PRIVATE; |
| 1181 | #else |
| 1182 | flags |= MAP_PRIVATE; |
| 1183 | #endif |
| 1184 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
| 1185 | flags, block->fd, offset); |
| 1186 | } else { |
| 1187 | flags |= MAP_PRIVATE | MAP_ANONYMOUS; |
| 1188 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
| 1189 | flags, -1, 0); |
| 1190 | } |
Jan Kiszka | fd28aa1 | 2011-03-15 12:26:14 +0100 | [diff] [blame] | 1191 | #else |
| 1192 | abort(); |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1193 | #endif |
| 1194 | } else { |
| 1195 | #if defined(TARGET_S390X) && defined(CONFIG_KVM) |
| 1196 | flags |= MAP_SHARED | MAP_ANONYMOUS; |
| 1197 | area = mmap(vaddr, length, PROT_EXEC|PROT_READ|PROT_WRITE, |
| 1198 | flags, -1, 0); |
| 1199 | #else |
| 1200 | flags |= MAP_PRIVATE | MAP_ANONYMOUS; |
| 1201 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
| 1202 | flags, -1, 0); |
| 1203 | #endif |
| 1204 | } |
| 1205 | if (area != vaddr) { |
Anthony PERARD | f15fbc4 | 2011-07-20 08:17:42 +0000 | [diff] [blame] | 1206 | fprintf(stderr, "Could not remap addr: " |
| 1207 | RAM_ADDR_FMT "@" RAM_ADDR_FMT "\n", |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1208 | length, addr); |
| 1209 | exit(1); |
| 1210 | } |
Luiz Capitulino | 8490fc7 | 2012-09-05 16:50:16 -0300 | [diff] [blame] | 1211 | memory_try_enable_merging(vaddr, length); |
Jason Baron | ddb97f1 | 2012-08-02 15:44:16 -0400 | [diff] [blame] | 1212 | qemu_ram_setup_dump(vaddr, length); |
Huang Ying | cd19cfa | 2011-03-02 08:56:19 +0100 | [diff] [blame] | 1213 | } |
| 1214 | return; |
| 1215 | } |
| 1216 | } |
| 1217 | } |
| 1218 | #endif /* !_WIN32 */ |
| 1219 | |
pbrook | dc828ca | 2009-04-09 22:21:07 +0000 | [diff] [blame] | 1220 | /* Return a host pointer to ram allocated with qemu_ram_alloc. |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 1221 | With the exception of the softmmu code in this file, this should |
| 1222 | only be used for local memory (e.g. video ram) that the device owns, |
| 1223 | and knows it isn't going to access beyond the end of the block. |
| 1224 | |
| 1225 | It should not be used for general purpose DMA. |
| 1226 | Use cpu_physical_memory_map/cpu_physical_memory_rw instead. |
| 1227 | */ |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1228 | void *qemu_get_ram_ptr(ram_addr_t addr) |
pbrook | dc828ca | 2009-04-09 22:21:07 +0000 | [diff] [blame] | 1229 | { |
pbrook | 94a6b54 | 2009-04-11 17:15:54 +0000 | [diff] [blame] | 1230 | RAMBlock *block; |
| 1231 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1232 | /* The list is protected by the iothread lock here. */ |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1233 | block = ram_list.mru_block; |
| 1234 | if (block && addr - block->offset < block->length) { |
| 1235 | goto found; |
| 1236 | } |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1237 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1238 | if (addr - block->offset < block->length) { |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1239 | goto found; |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1240 | } |
pbrook | 94a6b54 | 2009-04-11 17:15:54 +0000 | [diff] [blame] | 1241 | } |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1242 | |
| 1243 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
| 1244 | abort(); |
| 1245 | |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1246 | found: |
| 1247 | ram_list.mru_block = block; |
| 1248 | if (xen_enabled()) { |
| 1249 | /* We need to check if the requested address is in the RAM |
| 1250 | * because we don't want to map the entire memory in QEMU. |
| 1251 | * In that case just map until the end of the page. |
| 1252 | */ |
| 1253 | if (block->offset == 0) { |
| 1254 | return xen_map_cache(addr, 0, 0); |
| 1255 | } else if (block->host == NULL) { |
| 1256 | block->host = |
| 1257 | xen_map_cache(block->offset, block->length, 1); |
| 1258 | } |
| 1259 | } |
| 1260 | return block->host + (addr - block->offset); |
pbrook | dc828ca | 2009-04-09 22:21:07 +0000 | [diff] [blame] | 1261 | } |
| 1262 | |
Paolo Bonzini | 0d6d3c8 | 2012-11-14 15:45:02 +0100 | [diff] [blame] | 1263 | /* Return a host pointer to ram allocated with qemu_ram_alloc. Same as |
| 1264 | * qemu_get_ram_ptr but do not touch ram_list.mru_block. |
| 1265 | * |
| 1266 | * ??? Is this still necessary? |
Michael S. Tsirkin | b2e0a13 | 2010-11-22 19:52:34 +0200 | [diff] [blame] | 1267 | */ |
Blue Swirl | 8b9c99d | 2012-10-28 11:04:51 +0000 | [diff] [blame] | 1268 | static void *qemu_safe_ram_ptr(ram_addr_t addr) |
Michael S. Tsirkin | b2e0a13 | 2010-11-22 19:52:34 +0200 | [diff] [blame] | 1269 | { |
| 1270 | RAMBlock *block; |
| 1271 | |
Umesh Deshpande | b2a8658 | 2011-08-17 00:01:33 -0700 | [diff] [blame] | 1272 | /* The list is protected by the iothread lock here. */ |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1273 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Michael S. Tsirkin | b2e0a13 | 2010-11-22 19:52:34 +0200 | [diff] [blame] | 1274 | if (addr - block->offset < block->length) { |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 1275 | if (xen_enabled()) { |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1276 | /* We need to check if the requested address is in the RAM |
| 1277 | * because we don't want to map the entire memory in QEMU. |
Stefano Stabellini | 712c2b4 | 2011-05-19 18:35:46 +0100 | [diff] [blame] | 1278 | * In that case just map until the end of the page. |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1279 | */ |
| 1280 | if (block->offset == 0) { |
Jan Kiszka | e41d7c6 | 2011-06-21 22:59:08 +0200 | [diff] [blame] | 1281 | return xen_map_cache(addr, 0, 0); |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1282 | } else if (block->host == NULL) { |
Jan Kiszka | e41d7c6 | 2011-06-21 22:59:08 +0200 | [diff] [blame] | 1283 | block->host = |
| 1284 | xen_map_cache(block->offset, block->length, 1); |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1285 | } |
| 1286 | } |
Michael S. Tsirkin | b2e0a13 | 2010-11-22 19:52:34 +0200 | [diff] [blame] | 1287 | return block->host + (addr - block->offset); |
| 1288 | } |
| 1289 | } |
| 1290 | |
| 1291 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
| 1292 | abort(); |
| 1293 | |
| 1294 | return NULL; |
| 1295 | } |
| 1296 | |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 1297 | /* Return a host pointer to guest's ram. Similar to qemu_get_ram_ptr |
| 1298 | * but takes a size argument */ |
Blue Swirl | 8b9c99d | 2012-10-28 11:04:51 +0000 | [diff] [blame] | 1299 | 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] | 1300 | { |
Stefano Stabellini | 8ab934f | 2011-06-27 18:26:06 +0100 | [diff] [blame] | 1301 | if (*size == 0) { |
| 1302 | return NULL; |
| 1303 | } |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 1304 | if (xen_enabled()) { |
Jan Kiszka | e41d7c6 | 2011-06-21 22:59:08 +0200 | [diff] [blame] | 1305 | return xen_map_cache(addr, *size, 1); |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 1306 | } else { |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 1307 | RAMBlock *block; |
| 1308 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1309 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 1310 | if (addr - block->offset < block->length) { |
| 1311 | if (addr - block->offset + *size > block->length) |
| 1312 | *size = block->length - addr + block->offset; |
| 1313 | return block->host + (addr - block->offset); |
| 1314 | } |
| 1315 | } |
| 1316 | |
| 1317 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
| 1318 | abort(); |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 1319 | } |
| 1320 | } |
| 1321 | |
Anthony PERARD | 050a0dd | 2010-09-16 13:57:49 +0100 | [diff] [blame] | 1322 | void qemu_put_ram_ptr(void *addr) |
| 1323 | { |
| 1324 | trace_qemu_put_ram_ptr(addr); |
Anthony PERARD | 050a0dd | 2010-09-16 13:57:49 +0100 | [diff] [blame] | 1325 | } |
| 1326 | |
Marcelo Tosatti | e890261 | 2010-10-11 15:31:19 -0300 | [diff] [blame] | 1327 | int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr) |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 1328 | { |
pbrook | 94a6b54 | 2009-04-11 17:15:54 +0000 | [diff] [blame] | 1329 | RAMBlock *block; |
| 1330 | uint8_t *host = ptr; |
| 1331 | |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 1332 | if (xen_enabled()) { |
Jan Kiszka | e41d7c6 | 2011-06-21 22:59:08 +0200 | [diff] [blame] | 1333 | *ram_addr = xen_ram_addr_from_mapcache(ptr); |
Stefano Stabellini | 712c2b4 | 2011-05-19 18:35:46 +0100 | [diff] [blame] | 1334 | return 0; |
| 1335 | } |
| 1336 | |
Paolo Bonzini | a316103 | 2012-11-14 15:54:48 +0100 | [diff] [blame] | 1337 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1338 | /* This case append when the block is not mapped. */ |
| 1339 | if (block->host == NULL) { |
| 1340 | continue; |
| 1341 | } |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1342 | if (host - block->host < block->length) { |
Marcelo Tosatti | e890261 | 2010-10-11 15:31:19 -0300 | [diff] [blame] | 1343 | *ram_addr = block->offset + (host - block->host); |
| 1344 | return 0; |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1345 | } |
pbrook | 94a6b54 | 2009-04-11 17:15:54 +0000 | [diff] [blame] | 1346 | } |
Jun Nakajima | 432d268 | 2010-08-31 16:41:25 +0100 | [diff] [blame] | 1347 | |
Marcelo Tosatti | e890261 | 2010-10-11 15:31:19 -0300 | [diff] [blame] | 1348 | return -1; |
| 1349 | } |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1350 | |
Marcelo Tosatti | e890261 | 2010-10-11 15:31:19 -0300 | [diff] [blame] | 1351 | /* Some of the softmmu routines need to translate from a host pointer |
| 1352 | (typically a TLB entry) back to a ram offset. */ |
| 1353 | ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr) |
| 1354 | { |
| 1355 | ram_addr_t ram_addr; |
Alex Williamson | f471a17 | 2010-06-11 11:11:42 -0600 | [diff] [blame] | 1356 | |
Marcelo Tosatti | e890261 | 2010-10-11 15:31:19 -0300 | [diff] [blame] | 1357 | if (qemu_ram_addr_from_host(ptr, &ram_addr)) { |
| 1358 | fprintf(stderr, "Bad ram pointer %p\n", ptr); |
| 1359 | abort(); |
| 1360 | } |
| 1361 | return ram_addr; |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 1362 | } |
| 1363 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1364 | static uint64_t unassigned_mem_read(void *opaque, hwaddr addr, |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1365 | unsigned size) |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1366 | { |
pbrook | 67d3b95 | 2006-12-18 05:03:52 +0000 | [diff] [blame] | 1367 | #ifdef DEBUG_UNASSIGNED |
blueswir1 | ab3d172 | 2007-11-04 07:31:40 +0000 | [diff] [blame] | 1368 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
pbrook | 67d3b95 | 2006-12-18 05:03:52 +0000 | [diff] [blame] | 1369 | #endif |
Richard Henderson | 5b45040 | 2011-04-18 16:13:12 -0700 | [diff] [blame] | 1370 | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1371 | cpu_unassigned_access(cpu_single_env, addr, 0, 0, 0, size); |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 1372 | #endif |
| 1373 | return 0; |
| 1374 | } |
| 1375 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1376 | static void unassigned_mem_write(void *opaque, hwaddr addr, |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1377 | uint64_t val, unsigned size) |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 1378 | { |
| 1379 | #ifdef DEBUG_UNASSIGNED |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1380 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%"PRIx64"\n", addr, val); |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 1381 | #endif |
Richard Henderson | 5b45040 | 2011-04-18 16:13:12 -0700 | [diff] [blame] | 1382 | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1383 | cpu_unassigned_access(cpu_single_env, addr, 1, 0, 0, size); |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 1384 | #endif |
| 1385 | } |
| 1386 | |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1387 | static const MemoryRegionOps unassigned_mem_ops = { |
| 1388 | .read = unassigned_mem_read, |
| 1389 | .write = unassigned_mem_write, |
| 1390 | .endianness = DEVICE_NATIVE_ENDIAN, |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1391 | }; |
| 1392 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1393 | static uint64_t error_mem_read(void *opaque, hwaddr addr, |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1394 | unsigned size) |
| 1395 | { |
| 1396 | abort(); |
| 1397 | } |
| 1398 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1399 | static void error_mem_write(void *opaque, hwaddr addr, |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1400 | uint64_t value, unsigned size) |
| 1401 | { |
| 1402 | abort(); |
| 1403 | } |
| 1404 | |
| 1405 | static const MemoryRegionOps error_mem_ops = { |
| 1406 | .read = error_mem_read, |
| 1407 | .write = error_mem_write, |
| 1408 | .endianness = DEVICE_NATIVE_ENDIAN, |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1409 | }; |
| 1410 | |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1411 | static const MemoryRegionOps rom_mem_ops = { |
| 1412 | .read = error_mem_read, |
| 1413 | .write = unassigned_mem_write, |
| 1414 | .endianness = DEVICE_NATIVE_ENDIAN, |
| 1415 | }; |
| 1416 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1417 | static void notdirty_mem_write(void *opaque, hwaddr ram_addr, |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1418 | uint64_t val, unsigned size) |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1419 | { |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1420 | int dirty_flags; |
Yoshiaki Tamura | f7c11b5 | 2010-03-23 16:39:53 +0900 | [diff] [blame] | 1421 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1422 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 1423 | #if !defined(CONFIG_USER_ONLY) |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1424 | tb_invalidate_phys_page_fast(ram_addr, size); |
Yoshiaki Tamura | f7c11b5 | 2010-03-23 16:39:53 +0900 | [diff] [blame] | 1425 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1426 | #endif |
| 1427 | } |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1428 | switch (size) { |
| 1429 | case 1: |
| 1430 | stb_p(qemu_get_ram_ptr(ram_addr), val); |
| 1431 | break; |
| 1432 | case 2: |
| 1433 | stw_p(qemu_get_ram_ptr(ram_addr), val); |
| 1434 | break; |
| 1435 | case 4: |
| 1436 | stl_p(qemu_get_ram_ptr(ram_addr), val); |
| 1437 | break; |
| 1438 | default: |
| 1439 | abort(); |
| 1440 | } |
bellard | f23db16 | 2005-08-21 19:12:28 +0000 | [diff] [blame] | 1441 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
Yoshiaki Tamura | f7c11b5 | 2010-03-23 16:39:53 +0900 | [diff] [blame] | 1442 | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
bellard | f23db16 | 2005-08-21 19:12:28 +0000 | [diff] [blame] | 1443 | /* we remove the notdirty callback only if the code has been |
| 1444 | flushed */ |
| 1445 | if (dirty_flags == 0xff) |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 1446 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1447 | } |
| 1448 | |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1449 | static const MemoryRegionOps notdirty_mem_ops = { |
| 1450 | .read = error_mem_read, |
| 1451 | .write = notdirty_mem_write, |
| 1452 | .endianness = DEVICE_NATIVE_ENDIAN, |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1453 | }; |
| 1454 | |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1455 | /* Generate a debug exception if a watchpoint has been hit. */ |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 1456 | static void check_watchpoint(int offset, int len_mask, int flags) |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1457 | { |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 1458 | CPUArchState *env = cpu_single_env; |
aliguori | 06d55cc | 2008-11-18 20:24:06 +0000 | [diff] [blame] | 1459 | target_ulong pc, cs_base; |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1460 | target_ulong vaddr; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1461 | CPUWatchpoint *wp; |
aliguori | 06d55cc | 2008-11-18 20:24:06 +0000 | [diff] [blame] | 1462 | int cpu_flags; |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1463 | |
aliguori | 06d55cc | 2008-11-18 20:24:06 +0000 | [diff] [blame] | 1464 | if (env->watchpoint_hit) { |
| 1465 | /* We re-entered the check after replacing the TB. Now raise |
| 1466 | * the debug interrupt so that is will trigger after the |
| 1467 | * current instruction. */ |
| 1468 | cpu_interrupt(env, CPU_INTERRUPT_DEBUG); |
| 1469 | return; |
| 1470 | } |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 1471 | vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset; |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 1472 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 1473 | if ((vaddr == (wp->vaddr & len_mask) || |
| 1474 | (vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) { |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 1475 | wp->flags |= BP_WATCHPOINT_HIT; |
| 1476 | if (!env->watchpoint_hit) { |
| 1477 | env->watchpoint_hit = wp; |
Blue Swirl | 5a31652 | 2012-12-02 21:28:09 +0000 | [diff] [blame] | 1478 | tb_check_watchpoint(env); |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 1479 | if (wp->flags & BP_STOP_BEFORE_ACCESS) { |
| 1480 | env->exception_index = EXCP_DEBUG; |
Max Filippov | 488d657 | 2012-01-29 02:24:39 +0400 | [diff] [blame] | 1481 | cpu_loop_exit(env); |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 1482 | } else { |
| 1483 | cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags); |
| 1484 | tb_gen_code(env, pc, cs_base, cpu_flags, 1); |
Max Filippov | 488d657 | 2012-01-29 02:24:39 +0400 | [diff] [blame] | 1485 | cpu_resume_from_signal(env, NULL); |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 1486 | } |
aliguori | 06d55cc | 2008-11-18 20:24:06 +0000 | [diff] [blame] | 1487 | } |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 1488 | } else { |
| 1489 | wp->flags &= ~BP_WATCHPOINT_HIT; |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1490 | } |
| 1491 | } |
| 1492 | } |
| 1493 | |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1494 | /* Watchpoint access routines. Watchpoints are inserted using TLB tricks, |
| 1495 | so these check for a hit then pass through to the normal out-of-line |
| 1496 | phys routines. */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1497 | static uint64_t watch_mem_read(void *opaque, hwaddr addr, |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1498 | unsigned size) |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1499 | { |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1500 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~(size - 1), BP_MEM_READ); |
| 1501 | switch (size) { |
| 1502 | case 1: return ldub_phys(addr); |
| 1503 | case 2: return lduw_phys(addr); |
| 1504 | case 4: return ldl_phys(addr); |
| 1505 | default: abort(); |
| 1506 | } |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1507 | } |
| 1508 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1509 | static void watch_mem_write(void *opaque, hwaddr addr, |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1510 | uint64_t val, unsigned size) |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1511 | { |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1512 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~(size - 1), BP_MEM_WRITE); |
| 1513 | switch (size) { |
Max Filippov | 6736415 | 2012-01-29 00:01:40 +0400 | [diff] [blame] | 1514 | case 1: |
| 1515 | stb_phys(addr, val); |
| 1516 | break; |
| 1517 | case 2: |
| 1518 | stw_phys(addr, val); |
| 1519 | break; |
| 1520 | case 4: |
| 1521 | stl_phys(addr, val); |
| 1522 | break; |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1523 | default: abort(); |
| 1524 | } |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1525 | } |
| 1526 | |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1527 | static const MemoryRegionOps watch_mem_ops = { |
| 1528 | .read = watch_mem_read, |
| 1529 | .write = watch_mem_write, |
| 1530 | .endianness = DEVICE_NATIVE_ENDIAN, |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1531 | }; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1532 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1533 | static uint64_t subpage_read(void *opaque, hwaddr addr, |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1534 | unsigned len) |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1535 | { |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1536 | subpage_t *mmio = opaque; |
Richard Henderson | f640524 | 2010-04-22 16:47:31 -0700 | [diff] [blame] | 1537 | unsigned int idx = SUBPAGE_IDX(addr); |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1538 | MemoryRegionSection *section; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1539 | #if defined(DEBUG_SUBPAGE) |
| 1540 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d\n", __func__, |
| 1541 | mmio, len, addr, idx); |
| 1542 | #endif |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1543 | |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1544 | section = &phys_sections[mmio->sub_section[idx]]; |
| 1545 | addr += mmio->base; |
| 1546 | addr -= section->offset_within_address_space; |
| 1547 | addr += section->offset_within_region; |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1548 | return io_mem_read(section->mr, addr, len); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1549 | } |
| 1550 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1551 | static void subpage_write(void *opaque, hwaddr addr, |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1552 | uint64_t value, unsigned len) |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1553 | { |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1554 | subpage_t *mmio = opaque; |
Richard Henderson | f640524 | 2010-04-22 16:47:31 -0700 | [diff] [blame] | 1555 | unsigned int idx = SUBPAGE_IDX(addr); |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1556 | MemoryRegionSection *section; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1557 | #if defined(DEBUG_SUBPAGE) |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1558 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx |
| 1559 | " idx %d value %"PRIx64"\n", |
Richard Henderson | f640524 | 2010-04-22 16:47:31 -0700 | [diff] [blame] | 1560 | __func__, mmio, len, addr, idx, value); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1561 | #endif |
Richard Henderson | f640524 | 2010-04-22 16:47:31 -0700 | [diff] [blame] | 1562 | |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1563 | section = &phys_sections[mmio->sub_section[idx]]; |
| 1564 | addr += mmio->base; |
| 1565 | addr -= section->offset_within_address_space; |
| 1566 | addr += section->offset_within_region; |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1567 | io_mem_write(section->mr, addr, value, len); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1568 | } |
| 1569 | |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1570 | static const MemoryRegionOps subpage_ops = { |
| 1571 | .read = subpage_read, |
| 1572 | .write = subpage_write, |
| 1573 | .endianness = DEVICE_NATIVE_ENDIAN, |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1574 | }; |
| 1575 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1576 | static uint64_t subpage_ram_read(void *opaque, hwaddr addr, |
Avi Kivity | de712f9 | 2012-01-02 12:41:07 +0200 | [diff] [blame] | 1577 | unsigned size) |
Andreas Färber | 56384e8 | 2011-11-30 16:26:21 +0100 | [diff] [blame] | 1578 | { |
| 1579 | ram_addr_t raddr = addr; |
| 1580 | void *ptr = qemu_get_ram_ptr(raddr); |
Avi Kivity | de712f9 | 2012-01-02 12:41:07 +0200 | [diff] [blame] | 1581 | switch (size) { |
| 1582 | case 1: return ldub_p(ptr); |
| 1583 | case 2: return lduw_p(ptr); |
| 1584 | case 4: return ldl_p(ptr); |
| 1585 | default: abort(); |
| 1586 | } |
Andreas Färber | 56384e8 | 2011-11-30 16:26:21 +0100 | [diff] [blame] | 1587 | } |
| 1588 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1589 | static void subpage_ram_write(void *opaque, hwaddr addr, |
Avi Kivity | de712f9 | 2012-01-02 12:41:07 +0200 | [diff] [blame] | 1590 | uint64_t value, 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 stb_p(ptr, value); |
| 1596 | case 2: return stw_p(ptr, value); |
| 1597 | case 4: return stl_p(ptr, value); |
| 1598 | default: abort(); |
| 1599 | } |
Andreas Färber | 56384e8 | 2011-11-30 16:26:21 +0100 | [diff] [blame] | 1600 | } |
| 1601 | |
Avi Kivity | de712f9 | 2012-01-02 12:41:07 +0200 | [diff] [blame] | 1602 | static const MemoryRegionOps subpage_ram_ops = { |
| 1603 | .read = subpage_ram_read, |
| 1604 | .write = subpage_ram_write, |
| 1605 | .endianness = DEVICE_NATIVE_ENDIAN, |
Andreas Färber | 56384e8 | 2011-11-30 16:26:21 +0100 | [diff] [blame] | 1606 | }; |
| 1607 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1608 | 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] | 1609 | uint16_t section) |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1610 | { |
| 1611 | int idx, eidx; |
| 1612 | |
| 1613 | if (start >= TARGET_PAGE_SIZE || end >= TARGET_PAGE_SIZE) |
| 1614 | return -1; |
| 1615 | idx = SUBPAGE_IDX(start); |
| 1616 | eidx = SUBPAGE_IDX(end); |
| 1617 | #if defined(DEBUG_SUBPAGE) |
Blue Swirl | 0bf9e31 | 2009-07-20 17:19:25 +0000 | [diff] [blame] | 1618 | 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] | 1619 | mmio, start, end, idx, eidx, memory); |
| 1620 | #endif |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1621 | if (memory_region_is_ram(phys_sections[section].mr)) { |
| 1622 | MemoryRegionSection new_section = phys_sections[section]; |
| 1623 | new_section.mr = &io_mem_subpage_ram; |
| 1624 | section = phys_section_add(&new_section); |
Andreas Färber | 56384e8 | 2011-11-30 16:26:21 +0100 | [diff] [blame] | 1625 | } |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1626 | for (; idx <= eidx; idx++) { |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1627 | mmio->sub_section[idx] = section; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1628 | } |
| 1629 | |
| 1630 | return 0; |
| 1631 | } |
| 1632 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1633 | static subpage_t *subpage_init(hwaddr base) |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1634 | { |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1635 | subpage_t *mmio; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1636 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1637 | mmio = g_malloc0(sizeof(subpage_t)); |
aliguori | 1eec614 | 2009-02-05 22:06:18 +0000 | [diff] [blame] | 1638 | |
| 1639 | mmio->base = base; |
Avi Kivity | 70c68e4 | 2012-01-02 12:32:48 +0200 | [diff] [blame] | 1640 | memory_region_init_io(&mmio->iomem, &subpage_ops, mmio, |
| 1641 | "subpage", TARGET_PAGE_SIZE); |
Avi Kivity | b3b00c7 | 2012-01-02 13:20:11 +0200 | [diff] [blame] | 1642 | mmio->iomem.subpage = true; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1643 | #if defined(DEBUG_SUBPAGE) |
aliguori | 1eec614 | 2009-02-05 22:06:18 +0000 | [diff] [blame] | 1644 | printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__, |
| 1645 | mmio, base, TARGET_PAGE_SIZE, subpage_memory); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1646 | #endif |
Avi Kivity | 0f0cb16 | 2012-02-13 17:14:32 +0200 | [diff] [blame] | 1647 | subpage_register(mmio, 0, TARGET_PAGE_SIZE-1, phys_section_unassigned); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 1648 | |
| 1649 | return mmio; |
| 1650 | } |
| 1651 | |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1652 | static uint16_t dummy_section(MemoryRegion *mr) |
| 1653 | { |
| 1654 | MemoryRegionSection section = { |
| 1655 | .mr = mr, |
| 1656 | .offset_within_address_space = 0, |
| 1657 | .offset_within_region = 0, |
| 1658 | .size = UINT64_MAX, |
| 1659 | }; |
| 1660 | |
| 1661 | return phys_section_add(§ion); |
| 1662 | } |
| 1663 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1664 | MemoryRegion *iotlb_to_region(hwaddr index) |
Avi Kivity | aa10223 | 2012-03-08 17:06:55 +0200 | [diff] [blame] | 1665 | { |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1666 | return phys_sections[index & ~TARGET_PAGE_MASK].mr; |
Avi Kivity | aa10223 | 2012-03-08 17:06:55 +0200 | [diff] [blame] | 1667 | } |
| 1668 | |
Avi Kivity | e9179ce | 2009-06-14 11:38:52 +0300 | [diff] [blame] | 1669 | static void io_mem_init(void) |
| 1670 | { |
Avi Kivity | 0e0df1e | 2012-01-02 00:32:15 +0200 | [diff] [blame] | 1671 | 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] | 1672 | memory_region_init_io(&io_mem_rom, &rom_mem_ops, NULL, "rom", UINT64_MAX); |
| 1673 | memory_region_init_io(&io_mem_unassigned, &unassigned_mem_ops, NULL, |
| 1674 | "unassigned", UINT64_MAX); |
| 1675 | memory_region_init_io(&io_mem_notdirty, ¬dirty_mem_ops, NULL, |
| 1676 | "notdirty", UINT64_MAX); |
Avi Kivity | de712f9 | 2012-01-02 12:41:07 +0200 | [diff] [blame] | 1677 | memory_region_init_io(&io_mem_subpage_ram, &subpage_ram_ops, NULL, |
| 1678 | "subpage-ram", UINT64_MAX); |
Avi Kivity | 1ec9b90 | 2012-01-02 12:47:48 +0200 | [diff] [blame] | 1679 | memory_region_init_io(&io_mem_watch, &watch_mem_ops, NULL, |
| 1680 | "watch", UINT64_MAX); |
Avi Kivity | e9179ce | 2009-06-14 11:38:52 +0300 | [diff] [blame] | 1681 | } |
| 1682 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1683 | static void mem_begin(MemoryListener *listener) |
| 1684 | { |
| 1685 | AddressSpaceDispatch *d = container_of(listener, AddressSpaceDispatch, listener); |
| 1686 | |
| 1687 | destroy_all_mappings(d); |
| 1688 | d->phys_map.ptr = PHYS_MAP_NODE_NIL; |
| 1689 | } |
| 1690 | |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 1691 | static void core_begin(MemoryListener *listener) |
| 1692 | { |
Avi Kivity | 5312bd8 | 2012-02-12 18:32:55 +0200 | [diff] [blame] | 1693 | phys_sections_clear(); |
| 1694 | phys_section_unassigned = dummy_section(&io_mem_unassigned); |
Avi Kivity | aa10223 | 2012-03-08 17:06:55 +0200 | [diff] [blame] | 1695 | phys_section_notdirty = dummy_section(&io_mem_notdirty); |
| 1696 | phys_section_rom = dummy_section(&io_mem_rom); |
| 1697 | phys_section_watch = dummy_section(&io_mem_watch); |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 1698 | } |
| 1699 | |
Avi Kivity | 1d71148 | 2012-10-02 18:54:45 +0200 | [diff] [blame] | 1700 | static void tcg_commit(MemoryListener *listener) |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 1701 | { |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 1702 | CPUArchState *env; |
Avi Kivity | 117712c | 2012-02-12 21:23:17 +0200 | [diff] [blame] | 1703 | |
| 1704 | /* since each CPU stores ram addresses in its TLB cache, we must |
| 1705 | reset the modified entries */ |
| 1706 | /* XXX: slow ! */ |
| 1707 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
| 1708 | tlb_flush(env, 1); |
| 1709 | } |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 1710 | } |
| 1711 | |
Avi Kivity | 9363274 | 2012-02-08 16:54:16 +0200 | [diff] [blame] | 1712 | static void core_log_global_start(MemoryListener *listener) |
| 1713 | { |
| 1714 | cpu_physical_memory_set_dirty_tracking(1); |
| 1715 | } |
| 1716 | |
| 1717 | static void core_log_global_stop(MemoryListener *listener) |
| 1718 | { |
| 1719 | cpu_physical_memory_set_dirty_tracking(0); |
| 1720 | } |
| 1721 | |
Avi Kivity | 4855d41 | 2012-02-08 21:16:05 +0200 | [diff] [blame] | 1722 | static void io_region_add(MemoryListener *listener, |
| 1723 | MemoryRegionSection *section) |
| 1724 | { |
Avi Kivity | a2d3352 | 2012-03-05 17:40:12 +0200 | [diff] [blame] | 1725 | MemoryRegionIORange *mrio = g_new(MemoryRegionIORange, 1); |
| 1726 | |
| 1727 | mrio->mr = section->mr; |
| 1728 | mrio->offset = section->offset_within_region; |
| 1729 | iorange_init(&mrio->iorange, &memory_region_iorange_ops, |
Avi Kivity | 4855d41 | 2012-02-08 21:16:05 +0200 | [diff] [blame] | 1730 | section->offset_within_address_space, section->size); |
Avi Kivity | a2d3352 | 2012-03-05 17:40:12 +0200 | [diff] [blame] | 1731 | ioport_register(&mrio->iorange); |
Avi Kivity | 4855d41 | 2012-02-08 21:16:05 +0200 | [diff] [blame] | 1732 | } |
| 1733 | |
| 1734 | static void io_region_del(MemoryListener *listener, |
| 1735 | MemoryRegionSection *section) |
| 1736 | { |
| 1737 | isa_unassign_ioport(section->offset_within_address_space, section->size); |
| 1738 | } |
| 1739 | |
Avi Kivity | 9363274 | 2012-02-08 16:54:16 +0200 | [diff] [blame] | 1740 | static MemoryListener core_memory_listener = { |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 1741 | .begin = core_begin, |
Avi Kivity | 9363274 | 2012-02-08 16:54:16 +0200 | [diff] [blame] | 1742 | .log_global_start = core_log_global_start, |
| 1743 | .log_global_stop = core_log_global_stop, |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1744 | .priority = 1, |
Avi Kivity | 9363274 | 2012-02-08 16:54:16 +0200 | [diff] [blame] | 1745 | }; |
| 1746 | |
Avi Kivity | 4855d41 | 2012-02-08 21:16:05 +0200 | [diff] [blame] | 1747 | static MemoryListener io_memory_listener = { |
| 1748 | .region_add = io_region_add, |
| 1749 | .region_del = io_region_del, |
Avi Kivity | 4855d41 | 2012-02-08 21:16:05 +0200 | [diff] [blame] | 1750 | .priority = 0, |
| 1751 | }; |
| 1752 | |
Avi Kivity | 1d71148 | 2012-10-02 18:54:45 +0200 | [diff] [blame] | 1753 | static MemoryListener tcg_memory_listener = { |
| 1754 | .commit = tcg_commit, |
| 1755 | }; |
| 1756 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1757 | void address_space_init_dispatch(AddressSpace *as) |
| 1758 | { |
| 1759 | AddressSpaceDispatch *d = g_new(AddressSpaceDispatch, 1); |
| 1760 | |
| 1761 | d->phys_map = (PhysPageEntry) { .ptr = PHYS_MAP_NODE_NIL, .is_leaf = 0 }; |
| 1762 | d->listener = (MemoryListener) { |
| 1763 | .begin = mem_begin, |
| 1764 | .region_add = mem_add, |
| 1765 | .region_nop = mem_add, |
| 1766 | .priority = 0, |
| 1767 | }; |
| 1768 | as->dispatch = d; |
| 1769 | memory_listener_register(&d->listener, as); |
| 1770 | } |
| 1771 | |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 1772 | void address_space_destroy_dispatch(AddressSpace *as) |
| 1773 | { |
| 1774 | AddressSpaceDispatch *d = as->dispatch; |
| 1775 | |
| 1776 | memory_listener_unregister(&d->listener); |
| 1777 | destroy_l2_mapping(&d->phys_map, P_L2_LEVELS - 1); |
| 1778 | g_free(d); |
| 1779 | as->dispatch = NULL; |
| 1780 | } |
| 1781 | |
Avi Kivity | 62152b8 | 2011-07-26 14:26:14 +0300 | [diff] [blame] | 1782 | static void memory_map_init(void) |
| 1783 | { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1784 | system_memory = g_malloc(sizeof(*system_memory)); |
Avi Kivity | 8417ceb | 2011-08-03 11:56:14 +0300 | [diff] [blame] | 1785 | memory_region_init(system_memory, "system", INT64_MAX); |
Avi Kivity | 2673a5d | 2012-10-02 18:49:28 +0200 | [diff] [blame] | 1786 | address_space_init(&address_space_memory, system_memory); |
| 1787 | address_space_memory.name = "memory"; |
Avi Kivity | 309cb47 | 2011-08-08 16:09:03 +0300 | [diff] [blame] | 1788 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1789 | system_io = g_malloc(sizeof(*system_io)); |
Avi Kivity | 309cb47 | 2011-08-08 16:09:03 +0300 | [diff] [blame] | 1790 | memory_region_init(system_io, "io", 65536); |
Avi Kivity | 2673a5d | 2012-10-02 18:49:28 +0200 | [diff] [blame] | 1791 | address_space_init(&address_space_io, system_io); |
| 1792 | address_space_io.name = "I/O"; |
Avi Kivity | 9363274 | 2012-02-08 16:54:16 +0200 | [diff] [blame] | 1793 | |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 1794 | memory_listener_register(&core_memory_listener, &address_space_memory); |
| 1795 | memory_listener_register(&io_memory_listener, &address_space_io); |
| 1796 | memory_listener_register(&tcg_memory_listener, &address_space_memory); |
Peter Maydell | 9e11908 | 2012-10-29 11:34:32 +1000 | [diff] [blame] | 1797 | |
| 1798 | dma_context_init(&dma_context_memory, &address_space_memory, |
| 1799 | NULL, NULL, NULL); |
Avi Kivity | 62152b8 | 2011-07-26 14:26:14 +0300 | [diff] [blame] | 1800 | } |
| 1801 | |
| 1802 | MemoryRegion *get_system_memory(void) |
| 1803 | { |
| 1804 | return system_memory; |
| 1805 | } |
| 1806 | |
Avi Kivity | 309cb47 | 2011-08-08 16:09:03 +0300 | [diff] [blame] | 1807 | MemoryRegion *get_system_io(void) |
| 1808 | { |
| 1809 | return system_io; |
| 1810 | } |
| 1811 | |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 1812 | #endif /* !defined(CONFIG_USER_ONLY) */ |
| 1813 | |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1814 | /* physical memory access (slow version, mainly for debug) */ |
| 1815 | #if defined(CONFIG_USER_ONLY) |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 1816 | int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr, |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1817 | uint8_t *buf, int len, int is_write) |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1818 | { |
| 1819 | int l, flags; |
| 1820 | target_ulong page; |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 1821 | void * p; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1822 | |
| 1823 | while (len > 0) { |
| 1824 | page = addr & TARGET_PAGE_MASK; |
| 1825 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 1826 | if (l > len) |
| 1827 | l = len; |
| 1828 | flags = page_get_flags(page); |
| 1829 | if (!(flags & PAGE_VALID)) |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1830 | return -1; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1831 | if (is_write) { |
| 1832 | if (!(flags & PAGE_WRITE)) |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1833 | return -1; |
bellard | 579a97f | 2007-11-11 14:26:47 +0000 | [diff] [blame] | 1834 | /* XXX: this code should not depend on lock_user */ |
aurel32 | 72fb7da | 2008-04-27 23:53:45 +0000 | [diff] [blame] | 1835 | if (!(p = lock_user(VERIFY_WRITE, addr, l, 0))) |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1836 | return -1; |
aurel32 | 72fb7da | 2008-04-27 23:53:45 +0000 | [diff] [blame] | 1837 | memcpy(p, buf, l); |
| 1838 | unlock_user(p, addr, l); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1839 | } else { |
| 1840 | if (!(flags & PAGE_READ)) |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1841 | return -1; |
bellard | 579a97f | 2007-11-11 14:26:47 +0000 | [diff] [blame] | 1842 | /* XXX: this code should not depend on lock_user */ |
aurel32 | 72fb7da | 2008-04-27 23:53:45 +0000 | [diff] [blame] | 1843 | if (!(p = lock_user(VERIFY_READ, addr, l, 1))) |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1844 | return -1; |
aurel32 | 72fb7da | 2008-04-27 23:53:45 +0000 | [diff] [blame] | 1845 | memcpy(buf, p, l); |
aurel32 | 5b25757 | 2008-04-28 08:54:59 +0000 | [diff] [blame] | 1846 | unlock_user(p, addr, 0); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1847 | } |
| 1848 | len -= l; |
| 1849 | buf += l; |
| 1850 | addr += l; |
| 1851 | } |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 1852 | return 0; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1853 | } |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 1854 | |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1855 | #else |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 1856 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1857 | static void invalidate_and_set_dirty(hwaddr addr, |
| 1858 | hwaddr length) |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 1859 | { |
| 1860 | if (!cpu_physical_memory_is_dirty(addr)) { |
| 1861 | /* invalidate code */ |
| 1862 | tb_invalidate_phys_page_range(addr, addr + length, 0); |
| 1863 | /* set dirty bit */ |
| 1864 | cpu_physical_memory_set_dirty_flags(addr, (0xff & ~CODE_DIRTY_FLAG)); |
| 1865 | } |
Anthony PERARD | e226939 | 2012-10-03 13:49:22 +0000 | [diff] [blame] | 1866 | xen_modified_memory(addr, length); |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 1867 | } |
| 1868 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1869 | void address_space_rw(AddressSpace *as, hwaddr addr, uint8_t *buf, |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1870 | int len, bool is_write) |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1871 | { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1872 | AddressSpaceDispatch *d = as->dispatch; |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1873 | int l; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1874 | uint8_t *ptr; |
| 1875 | uint32_t val; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1876 | hwaddr page; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 1877 | MemoryRegionSection *section; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1878 | |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1879 | while (len > 0) { |
| 1880 | page = addr & TARGET_PAGE_MASK; |
| 1881 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 1882 | if (l > len) |
| 1883 | l = len; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1884 | section = phys_page_find(d, page >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1885 | |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1886 | if (is_write) { |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 1887 | if (!memory_region_is_ram(section->mr)) { |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1888 | hwaddr addr1; |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 1889 | addr1 = memory_region_section_addr(section, addr); |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 1890 | /* XXX: could force cpu_single_env to NULL to avoid |
| 1891 | potential bugs */ |
aurel32 | 6c2934d | 2009-02-18 21:37:17 +0000 | [diff] [blame] | 1892 | if (l >= 4 && ((addr1 & 3) == 0)) { |
bellard | 1c213d1 | 2005-09-03 10:49:04 +0000 | [diff] [blame] | 1893 | /* 32 bit write access */ |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1894 | val = ldl_p(buf); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1895 | io_mem_write(section->mr, addr1, val, 4); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1896 | l = 4; |
aurel32 | 6c2934d | 2009-02-18 21:37:17 +0000 | [diff] [blame] | 1897 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
bellard | 1c213d1 | 2005-09-03 10:49:04 +0000 | [diff] [blame] | 1898 | /* 16 bit write access */ |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1899 | val = lduw_p(buf); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1900 | io_mem_write(section->mr, addr1, val, 2); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1901 | l = 2; |
| 1902 | } else { |
bellard | 1c213d1 | 2005-09-03 10:49:04 +0000 | [diff] [blame] | 1903 | /* 8 bit write access */ |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1904 | val = ldub_p(buf); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1905 | io_mem_write(section->mr, addr1, val, 1); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1906 | l = 1; |
| 1907 | } |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 1908 | } else if (!section->readonly) { |
Anthony PERARD | 8ca5692 | 2011-07-15 04:32:53 +0000 | [diff] [blame] | 1909 | ram_addr_t addr1; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 1910 | addr1 = memory_region_get_ram_addr(section->mr) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 1911 | + memory_region_section_addr(section, addr); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1912 | /* RAM case */ |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 1913 | ptr = qemu_get_ram_ptr(addr1); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1914 | memcpy(ptr, buf, l); |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 1915 | invalidate_and_set_dirty(addr1, l); |
Anthony PERARD | 050a0dd | 2010-09-16 13:57:49 +0100 | [diff] [blame] | 1916 | qemu_put_ram_ptr(ptr); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1917 | } |
| 1918 | } else { |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 1919 | if (!(memory_region_is_ram(section->mr) || |
| 1920 | memory_region_is_romd(section->mr))) { |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1921 | hwaddr addr1; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1922 | /* I/O case */ |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 1923 | addr1 = memory_region_section_addr(section, addr); |
aurel32 | 6c2934d | 2009-02-18 21:37:17 +0000 | [diff] [blame] | 1924 | if (l >= 4 && ((addr1 & 3) == 0)) { |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1925 | /* 32 bit read access */ |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1926 | val = io_mem_read(section->mr, addr1, 4); |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1927 | stl_p(buf, val); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1928 | l = 4; |
aurel32 | 6c2934d | 2009-02-18 21:37:17 +0000 | [diff] [blame] | 1929 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1930 | /* 16 bit read access */ |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1931 | val = io_mem_read(section->mr, addr1, 2); |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1932 | stw_p(buf, val); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1933 | l = 2; |
| 1934 | } else { |
bellard | 1c213d1 | 2005-09-03 10:49:04 +0000 | [diff] [blame] | 1935 | /* 8 bit read access */ |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1936 | val = io_mem_read(section->mr, addr1, 1); |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1937 | stb_p(buf, val); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1938 | l = 1; |
| 1939 | } |
| 1940 | } else { |
| 1941 | /* RAM case */ |
Anthony PERARD | 0a1b357 | 2012-03-19 15:54:34 +0000 | [diff] [blame] | 1942 | ptr = qemu_get_ram_ptr(section->mr->ram_addr |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 1943 | + memory_region_section_addr(section, |
| 1944 | addr)); |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 1945 | memcpy(buf, ptr, l); |
Anthony PERARD | 050a0dd | 2010-09-16 13:57:49 +0100 | [diff] [blame] | 1946 | qemu_put_ram_ptr(ptr); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 1947 | } |
| 1948 | } |
| 1949 | len -= l; |
| 1950 | buf += l; |
| 1951 | addr += l; |
| 1952 | } |
| 1953 | } |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 1954 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1955 | void address_space_write(AddressSpace *as, hwaddr addr, |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1956 | const uint8_t *buf, int len) |
| 1957 | { |
| 1958 | address_space_rw(as, addr, (uint8_t *)buf, len, true); |
| 1959 | } |
| 1960 | |
| 1961 | /** |
| 1962 | * address_space_read: read from an address space. |
| 1963 | * |
| 1964 | * @as: #AddressSpace to be accessed |
| 1965 | * @addr: address within that address space |
| 1966 | * @buf: buffer with the data transferred |
| 1967 | */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1968 | 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] | 1969 | { |
| 1970 | address_space_rw(as, addr, buf, len, false); |
| 1971 | } |
| 1972 | |
| 1973 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1974 | void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf, |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1975 | int len, int is_write) |
| 1976 | { |
| 1977 | return address_space_rw(&address_space_memory, addr, buf, len, is_write); |
| 1978 | } |
| 1979 | |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 1980 | /* used for ROM loading : can write in RAM and ROM */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1981 | void cpu_physical_memory_write_rom(hwaddr addr, |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 1982 | const uint8_t *buf, int len) |
| 1983 | { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1984 | AddressSpaceDispatch *d = address_space_memory.dispatch; |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 1985 | int l; |
| 1986 | uint8_t *ptr; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1987 | hwaddr page; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 1988 | MemoryRegionSection *section; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1989 | |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 1990 | while (len > 0) { |
| 1991 | page = addr & TARGET_PAGE_MASK; |
| 1992 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 1993 | if (l > len) |
| 1994 | l = len; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1995 | section = phys_page_find(d, page >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1996 | |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 1997 | if (!(memory_region_is_ram(section->mr) || |
| 1998 | memory_region_is_romd(section->mr))) { |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 1999 | /* do nothing */ |
| 2000 | } else { |
| 2001 | unsigned long addr1; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2002 | addr1 = memory_region_get_ram_addr(section->mr) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2003 | + memory_region_section_addr(section, addr); |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 2004 | /* ROM/RAM case */ |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 2005 | ptr = qemu_get_ram_ptr(addr1); |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 2006 | memcpy(ptr, buf, l); |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 2007 | invalidate_and_set_dirty(addr1, l); |
Anthony PERARD | 050a0dd | 2010-09-16 13:57:49 +0100 | [diff] [blame] | 2008 | qemu_put_ram_ptr(ptr); |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 2009 | } |
| 2010 | len -= l; |
| 2011 | buf += l; |
| 2012 | addr += l; |
| 2013 | } |
| 2014 | } |
| 2015 | |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2016 | typedef struct { |
| 2017 | void *buffer; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2018 | hwaddr addr; |
| 2019 | hwaddr len; |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2020 | } BounceBuffer; |
| 2021 | |
| 2022 | static BounceBuffer bounce; |
| 2023 | |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2024 | typedef struct MapClient { |
| 2025 | void *opaque; |
| 2026 | void (*callback)(void *opaque); |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2027 | QLIST_ENTRY(MapClient) link; |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2028 | } MapClient; |
| 2029 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2030 | static QLIST_HEAD(map_client_list, MapClient) map_client_list |
| 2031 | = QLIST_HEAD_INITIALIZER(map_client_list); |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2032 | |
| 2033 | void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque)) |
| 2034 | { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2035 | MapClient *client = g_malloc(sizeof(*client)); |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2036 | |
| 2037 | client->opaque = opaque; |
| 2038 | client->callback = callback; |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2039 | QLIST_INSERT_HEAD(&map_client_list, client, link); |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2040 | return client; |
| 2041 | } |
| 2042 | |
Blue Swirl | 8b9c99d | 2012-10-28 11:04:51 +0000 | [diff] [blame] | 2043 | static void cpu_unregister_map_client(void *_client) |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2044 | { |
| 2045 | MapClient *client = (MapClient *)_client; |
| 2046 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2047 | QLIST_REMOVE(client, link); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2048 | g_free(client); |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2049 | } |
| 2050 | |
| 2051 | static void cpu_notify_map_clients(void) |
| 2052 | { |
| 2053 | MapClient *client; |
| 2054 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2055 | while (!QLIST_EMPTY(&map_client_list)) { |
| 2056 | client = QLIST_FIRST(&map_client_list); |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2057 | client->callback(client->opaque); |
Isaku Yamahata | 34d5e94 | 2009-06-26 18:57:18 +0900 | [diff] [blame] | 2058 | cpu_unregister_map_client(client); |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2059 | } |
| 2060 | } |
| 2061 | |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2062 | /* Map a physical memory region into a host virtual address. |
| 2063 | * May map a subset of the requested range, given by and returned in *plen. |
| 2064 | * May return NULL if resources needed to perform the mapping are exhausted. |
| 2065 | * Use only for reads OR writes - not for read-modify-write operations. |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2066 | * Use cpu_register_map_client() to know when retrying the map operation is |
| 2067 | * likely to succeed. |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2068 | */ |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2069 | void *address_space_map(AddressSpace *as, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2070 | hwaddr addr, |
| 2071 | hwaddr *plen, |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2072 | bool is_write) |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2073 | { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2074 | AddressSpaceDispatch *d = as->dispatch; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2075 | hwaddr len = *plen; |
| 2076 | hwaddr todo = 0; |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2077 | int l; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2078 | hwaddr page; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2079 | MemoryRegionSection *section; |
Anthony PERARD | f15fbc4 | 2011-07-20 08:17:42 +0000 | [diff] [blame] | 2080 | ram_addr_t raddr = RAM_ADDR_MAX; |
Stefano Stabellini | 8ab934f | 2011-06-27 18:26:06 +0100 | [diff] [blame] | 2081 | ram_addr_t rlen; |
| 2082 | void *ret; |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2083 | |
| 2084 | while (len > 0) { |
| 2085 | page = addr & TARGET_PAGE_MASK; |
| 2086 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2087 | if (l > len) |
| 2088 | l = len; |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2089 | section = phys_page_find(d, page >> TARGET_PAGE_BITS); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2090 | |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2091 | if (!(memory_region_is_ram(section->mr) && !section->readonly)) { |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 2092 | if (todo || bounce.buffer) { |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2093 | break; |
| 2094 | } |
| 2095 | bounce.buffer = qemu_memalign(TARGET_PAGE_SIZE, TARGET_PAGE_SIZE); |
| 2096 | bounce.addr = addr; |
| 2097 | bounce.len = l; |
| 2098 | if (!is_write) { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2099 | address_space_read(as, addr, bounce.buffer, l); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2100 | } |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 2101 | |
| 2102 | *plen = l; |
| 2103 | return bounce.buffer; |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2104 | } |
Stefano Stabellini | 8ab934f | 2011-06-27 18:26:06 +0100 | [diff] [blame] | 2105 | if (!todo) { |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2106 | raddr = memory_region_get_ram_addr(section->mr) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2107 | + memory_region_section_addr(section, addr); |
Stefano Stabellini | 8ab934f | 2011-06-27 18:26:06 +0100 | [diff] [blame] | 2108 | } |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2109 | |
| 2110 | len -= l; |
| 2111 | addr += l; |
Stefano Stabellini | 38bee5d | 2011-05-19 18:35:45 +0100 | [diff] [blame] | 2112 | todo += l; |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2113 | } |
Stefano Stabellini | 8ab934f | 2011-06-27 18:26:06 +0100 | [diff] [blame] | 2114 | rlen = todo; |
| 2115 | ret = qemu_ram_ptr_length(raddr, &rlen); |
| 2116 | *plen = rlen; |
| 2117 | return ret; |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2118 | } |
| 2119 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2120 | /* Unmaps a memory region previously mapped by address_space_map(). |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2121 | * Will also mark the memory as dirty if is_write == 1. access_len gives |
| 2122 | * the amount of memory that was actually read or written by the caller. |
| 2123 | */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2124 | void address_space_unmap(AddressSpace *as, void *buffer, hwaddr len, |
| 2125 | int is_write, hwaddr access_len) |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2126 | { |
| 2127 | if (buffer != bounce.buffer) { |
| 2128 | if (is_write) { |
Marcelo Tosatti | e890261 | 2010-10-11 15:31:19 -0300 | [diff] [blame] | 2129 | ram_addr_t addr1 = qemu_ram_addr_from_host_nofail(buffer); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2130 | while (access_len) { |
| 2131 | unsigned l; |
| 2132 | l = TARGET_PAGE_SIZE; |
| 2133 | if (l > access_len) |
| 2134 | l = access_len; |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 2135 | invalidate_and_set_dirty(addr1, l); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2136 | addr1 += l; |
| 2137 | access_len -= l; |
| 2138 | } |
| 2139 | } |
Jan Kiszka | 868bb33 | 2011-06-21 22:59:09 +0200 | [diff] [blame] | 2140 | if (xen_enabled()) { |
Jan Kiszka | e41d7c6 | 2011-06-21 22:59:08 +0200 | [diff] [blame] | 2141 | xen_invalidate_map_cache_entry(buffer); |
Anthony PERARD | 050a0dd | 2010-09-16 13:57:49 +0100 | [diff] [blame] | 2142 | } |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2143 | return; |
| 2144 | } |
| 2145 | if (is_write) { |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2146 | address_space_write(as, bounce.addr, bounce.buffer, access_len); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2147 | } |
Herve Poussineau | f8a8324 | 2010-01-24 21:23:56 +0000 | [diff] [blame] | 2148 | qemu_vfree(bounce.buffer); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2149 | bounce.buffer = NULL; |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame] | 2150 | cpu_notify_map_clients(); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 2151 | } |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 2152 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2153 | void *cpu_physical_memory_map(hwaddr addr, |
| 2154 | hwaddr *plen, |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2155 | int is_write) |
| 2156 | { |
| 2157 | return address_space_map(&address_space_memory, addr, plen, is_write); |
| 2158 | } |
| 2159 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2160 | void cpu_physical_memory_unmap(void *buffer, hwaddr len, |
| 2161 | int is_write, hwaddr access_len) |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2162 | { |
| 2163 | return address_space_unmap(&address_space_memory, buffer, len, is_write, access_len); |
| 2164 | } |
| 2165 | |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2166 | /* warning: addr must be aligned */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2167 | static inline uint32_t ldl_phys_internal(hwaddr addr, |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2168 | enum device_endian endian) |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2169 | { |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2170 | uint8_t *ptr; |
| 2171 | uint32_t val; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2172 | MemoryRegionSection *section; |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2173 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2174 | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2175 | |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2176 | if (!(memory_region_is_ram(section->mr) || |
| 2177 | memory_region_is_romd(section->mr))) { |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2178 | /* I/O case */ |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2179 | addr = memory_region_section_addr(section, addr); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2180 | val = io_mem_read(section->mr, addr, 4); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2181 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2182 | if (endian == DEVICE_LITTLE_ENDIAN) { |
| 2183 | val = bswap32(val); |
| 2184 | } |
| 2185 | #else |
| 2186 | if (endian == DEVICE_BIG_ENDIAN) { |
| 2187 | val = bswap32(val); |
| 2188 | } |
| 2189 | #endif |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2190 | } else { |
| 2191 | /* RAM case */ |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2192 | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
Avi Kivity | 06ef352 | 2012-02-13 16:11:22 +0200 | [diff] [blame] | 2193 | & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2194 | + memory_region_section_addr(section, addr)); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2195 | switch (endian) { |
| 2196 | case DEVICE_LITTLE_ENDIAN: |
| 2197 | val = ldl_le_p(ptr); |
| 2198 | break; |
| 2199 | case DEVICE_BIG_ENDIAN: |
| 2200 | val = ldl_be_p(ptr); |
| 2201 | break; |
| 2202 | default: |
| 2203 | val = ldl_p(ptr); |
| 2204 | break; |
| 2205 | } |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2206 | } |
| 2207 | return val; |
| 2208 | } |
| 2209 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2210 | uint32_t ldl_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2211 | { |
| 2212 | return ldl_phys_internal(addr, DEVICE_NATIVE_ENDIAN); |
| 2213 | } |
| 2214 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2215 | uint32_t ldl_le_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2216 | { |
| 2217 | return ldl_phys_internal(addr, DEVICE_LITTLE_ENDIAN); |
| 2218 | } |
| 2219 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2220 | uint32_t ldl_be_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2221 | { |
| 2222 | return ldl_phys_internal(addr, DEVICE_BIG_ENDIAN); |
| 2223 | } |
| 2224 | |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2225 | /* warning: addr must be aligned */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2226 | static inline uint64_t ldq_phys_internal(hwaddr addr, |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2227 | enum device_endian endian) |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2228 | { |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2229 | uint8_t *ptr; |
| 2230 | uint64_t val; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2231 | MemoryRegionSection *section; |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2232 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2233 | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2234 | |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2235 | if (!(memory_region_is_ram(section->mr) || |
| 2236 | memory_region_is_romd(section->mr))) { |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2237 | /* I/O case */ |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2238 | addr = memory_region_section_addr(section, addr); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2239 | |
| 2240 | /* XXX This is broken when device endian != cpu endian. |
| 2241 | Fix and add "endian" variable check */ |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2242 | #ifdef TARGET_WORDS_BIGENDIAN |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2243 | val = io_mem_read(section->mr, addr, 4) << 32; |
| 2244 | val |= io_mem_read(section->mr, addr + 4, 4); |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2245 | #else |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2246 | val = io_mem_read(section->mr, addr, 4); |
| 2247 | val |= io_mem_read(section->mr, addr + 4, 4) << 32; |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2248 | #endif |
| 2249 | } else { |
| 2250 | /* RAM case */ |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2251 | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
Avi Kivity | 06ef352 | 2012-02-13 16:11:22 +0200 | [diff] [blame] | 2252 | & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2253 | + memory_region_section_addr(section, addr)); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2254 | switch (endian) { |
| 2255 | case DEVICE_LITTLE_ENDIAN: |
| 2256 | val = ldq_le_p(ptr); |
| 2257 | break; |
| 2258 | case DEVICE_BIG_ENDIAN: |
| 2259 | val = ldq_be_p(ptr); |
| 2260 | break; |
| 2261 | default: |
| 2262 | val = ldq_p(ptr); |
| 2263 | break; |
| 2264 | } |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2265 | } |
| 2266 | return val; |
| 2267 | } |
| 2268 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2269 | uint64_t ldq_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2270 | { |
| 2271 | return ldq_phys_internal(addr, DEVICE_NATIVE_ENDIAN); |
| 2272 | } |
| 2273 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2274 | uint64_t ldq_le_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2275 | { |
| 2276 | return ldq_phys_internal(addr, DEVICE_LITTLE_ENDIAN); |
| 2277 | } |
| 2278 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2279 | uint64_t ldq_be_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2280 | { |
| 2281 | return ldq_phys_internal(addr, DEVICE_BIG_ENDIAN); |
| 2282 | } |
| 2283 | |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2284 | /* XXX: optimize */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2285 | uint32_t ldub_phys(hwaddr addr) |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2286 | { |
| 2287 | uint8_t val; |
| 2288 | cpu_physical_memory_read(addr, &val, 1); |
| 2289 | return val; |
| 2290 | } |
| 2291 | |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2292 | /* warning: addr must be aligned */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2293 | static inline uint32_t lduw_phys_internal(hwaddr addr, |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2294 | enum device_endian endian) |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2295 | { |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2296 | uint8_t *ptr; |
| 2297 | uint64_t val; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2298 | MemoryRegionSection *section; |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2299 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2300 | 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] | 2301 | |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2302 | if (!(memory_region_is_ram(section->mr) || |
| 2303 | memory_region_is_romd(section->mr))) { |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2304 | /* I/O case */ |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2305 | addr = memory_region_section_addr(section, addr); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2306 | val = io_mem_read(section->mr, addr, 2); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2307 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2308 | if (endian == DEVICE_LITTLE_ENDIAN) { |
| 2309 | val = bswap16(val); |
| 2310 | } |
| 2311 | #else |
| 2312 | if (endian == DEVICE_BIG_ENDIAN) { |
| 2313 | val = bswap16(val); |
| 2314 | } |
| 2315 | #endif |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2316 | } else { |
| 2317 | /* RAM case */ |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2318 | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
Avi Kivity | 06ef352 | 2012-02-13 16:11:22 +0200 | [diff] [blame] | 2319 | & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2320 | + memory_region_section_addr(section, addr)); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2321 | switch (endian) { |
| 2322 | case DEVICE_LITTLE_ENDIAN: |
| 2323 | val = lduw_le_p(ptr); |
| 2324 | break; |
| 2325 | case DEVICE_BIG_ENDIAN: |
| 2326 | val = lduw_be_p(ptr); |
| 2327 | break; |
| 2328 | default: |
| 2329 | val = lduw_p(ptr); |
| 2330 | break; |
| 2331 | } |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2332 | } |
| 2333 | return val; |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2334 | } |
| 2335 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2336 | uint32_t lduw_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2337 | { |
| 2338 | return lduw_phys_internal(addr, DEVICE_NATIVE_ENDIAN); |
| 2339 | } |
| 2340 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2341 | uint32_t lduw_le_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2342 | { |
| 2343 | return lduw_phys_internal(addr, DEVICE_LITTLE_ENDIAN); |
| 2344 | } |
| 2345 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2346 | uint32_t lduw_be_phys(hwaddr addr) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2347 | { |
| 2348 | return lduw_phys_internal(addr, DEVICE_BIG_ENDIAN); |
| 2349 | } |
| 2350 | |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2351 | /* warning: addr must be aligned. The ram page is not masked as dirty |
| 2352 | and the code inside is not invalidated. It is useful if the dirty |
| 2353 | bits are used to track modified PTEs */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2354 | void stl_phys_notdirty(hwaddr addr, uint32_t val) |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2355 | { |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2356 | uint8_t *ptr; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2357 | MemoryRegionSection *section; |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2358 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2359 | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2360 | |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2361 | if (!memory_region_is_ram(section->mr) || section->readonly) { |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2362 | addr = memory_region_section_addr(section, addr); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2363 | if (memory_region_is_ram(section->mr)) { |
| 2364 | section = &phys_sections[phys_section_rom]; |
| 2365 | } |
| 2366 | io_mem_write(section->mr, addr, val, 4); |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2367 | } else { |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2368 | unsigned long addr1 = (memory_region_get_ram_addr(section->mr) |
Avi Kivity | 06ef352 | 2012-02-13 16:11:22 +0200 | [diff] [blame] | 2369 | & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2370 | + memory_region_section_addr(section, addr); |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 2371 | ptr = qemu_get_ram_ptr(addr1); |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2372 | stl_p(ptr, val); |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 2373 | |
| 2374 | if (unlikely(in_migration)) { |
| 2375 | if (!cpu_physical_memory_is_dirty(addr1)) { |
| 2376 | /* invalidate code */ |
| 2377 | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
| 2378 | /* set dirty bit */ |
Yoshiaki Tamura | f7c11b5 | 2010-03-23 16:39:53 +0900 | [diff] [blame] | 2379 | cpu_physical_memory_set_dirty_flags( |
| 2380 | addr1, (0xff & ~CODE_DIRTY_FLAG)); |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 2381 | } |
| 2382 | } |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2383 | } |
| 2384 | } |
| 2385 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2386 | void stq_phys_notdirty(hwaddr addr, uint64_t val) |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2387 | { |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2388 | uint8_t *ptr; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2389 | MemoryRegionSection *section; |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2390 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2391 | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2392 | |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2393 | if (!memory_region_is_ram(section->mr) || section->readonly) { |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2394 | addr = memory_region_section_addr(section, addr); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2395 | if (memory_region_is_ram(section->mr)) { |
| 2396 | section = &phys_sections[phys_section_rom]; |
| 2397 | } |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2398 | #ifdef TARGET_WORDS_BIGENDIAN |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2399 | io_mem_write(section->mr, addr, val >> 32, 4); |
| 2400 | io_mem_write(section->mr, addr + 4, (uint32_t)val, 4); |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2401 | #else |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2402 | io_mem_write(section->mr, addr, (uint32_t)val, 4); |
| 2403 | io_mem_write(section->mr, addr + 4, val >> 32, 4); |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2404 | #endif |
| 2405 | } else { |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2406 | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
Avi Kivity | 06ef352 | 2012-02-13 16:11:22 +0200 | [diff] [blame] | 2407 | & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2408 | + memory_region_section_addr(section, addr)); |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 2409 | stq_p(ptr, val); |
| 2410 | } |
| 2411 | } |
| 2412 | |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2413 | /* warning: addr must be aligned */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2414 | static inline void stl_phys_internal(hwaddr addr, uint32_t val, |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2415 | enum device_endian endian) |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2416 | { |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2417 | uint8_t *ptr; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2418 | MemoryRegionSection *section; |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2419 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2420 | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2421 | |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2422 | if (!memory_region_is_ram(section->mr) || section->readonly) { |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2423 | addr = memory_region_section_addr(section, addr); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2424 | if (memory_region_is_ram(section->mr)) { |
| 2425 | section = &phys_sections[phys_section_rom]; |
| 2426 | } |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2427 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2428 | if (endian == DEVICE_LITTLE_ENDIAN) { |
| 2429 | val = bswap32(val); |
| 2430 | } |
| 2431 | #else |
| 2432 | if (endian == DEVICE_BIG_ENDIAN) { |
| 2433 | val = bswap32(val); |
| 2434 | } |
| 2435 | #endif |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2436 | io_mem_write(section->mr, addr, val, 4); |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2437 | } else { |
| 2438 | unsigned long addr1; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2439 | addr1 = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2440 | + memory_region_section_addr(section, addr); |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2441 | /* RAM case */ |
pbrook | 5579c7f | 2009-04-11 14:47:08 +0000 | [diff] [blame] | 2442 | ptr = qemu_get_ram_ptr(addr1); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2443 | switch (endian) { |
| 2444 | case DEVICE_LITTLE_ENDIAN: |
| 2445 | stl_le_p(ptr, val); |
| 2446 | break; |
| 2447 | case DEVICE_BIG_ENDIAN: |
| 2448 | stl_be_p(ptr, val); |
| 2449 | break; |
| 2450 | default: |
| 2451 | stl_p(ptr, val); |
| 2452 | break; |
| 2453 | } |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 2454 | invalidate_and_set_dirty(addr1, 4); |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2455 | } |
| 2456 | } |
| 2457 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2458 | void stl_phys(hwaddr addr, uint32_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2459 | { |
| 2460 | stl_phys_internal(addr, val, DEVICE_NATIVE_ENDIAN); |
| 2461 | } |
| 2462 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2463 | void stl_le_phys(hwaddr addr, uint32_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2464 | { |
| 2465 | stl_phys_internal(addr, val, DEVICE_LITTLE_ENDIAN); |
| 2466 | } |
| 2467 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2468 | void stl_be_phys(hwaddr addr, uint32_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2469 | { |
| 2470 | stl_phys_internal(addr, val, DEVICE_BIG_ENDIAN); |
| 2471 | } |
| 2472 | |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2473 | /* XXX: optimize */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2474 | void stb_phys(hwaddr addr, uint32_t val) |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2475 | { |
| 2476 | uint8_t v = val; |
| 2477 | cpu_physical_memory_write(addr, &v, 1); |
| 2478 | } |
| 2479 | |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2480 | /* warning: addr must be aligned */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2481 | static inline void stw_phys_internal(hwaddr addr, uint32_t val, |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2482 | enum device_endian endian) |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2483 | { |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2484 | uint8_t *ptr; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2485 | MemoryRegionSection *section; |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2486 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2487 | 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] | 2488 | |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2489 | if (!memory_region_is_ram(section->mr) || section->readonly) { |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2490 | addr = memory_region_section_addr(section, addr); |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2491 | if (memory_region_is_ram(section->mr)) { |
| 2492 | section = &phys_sections[phys_section_rom]; |
| 2493 | } |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2494 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2495 | if (endian == DEVICE_LITTLE_ENDIAN) { |
| 2496 | val = bswap16(val); |
| 2497 | } |
| 2498 | #else |
| 2499 | if (endian == DEVICE_BIG_ENDIAN) { |
| 2500 | val = bswap16(val); |
| 2501 | } |
| 2502 | #endif |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 2503 | io_mem_write(section->mr, addr, val, 2); |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2504 | } else { |
| 2505 | unsigned long addr1; |
Avi Kivity | f3705d5 | 2012-03-08 16:16:34 +0200 | [diff] [blame] | 2506 | addr1 = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) |
Blue Swirl | cc5bea6 | 2012-04-14 14:56:48 +0000 | [diff] [blame] | 2507 | + memory_region_section_addr(section, addr); |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2508 | /* RAM case */ |
| 2509 | ptr = qemu_get_ram_ptr(addr1); |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2510 | switch (endian) { |
| 2511 | case DEVICE_LITTLE_ENDIAN: |
| 2512 | stw_le_p(ptr, val); |
| 2513 | break; |
| 2514 | case DEVICE_BIG_ENDIAN: |
| 2515 | stw_be_p(ptr, val); |
| 2516 | break; |
| 2517 | default: |
| 2518 | stw_p(ptr, val); |
| 2519 | break; |
| 2520 | } |
Anthony PERARD | 51d7a9e | 2012-10-03 13:49:05 +0000 | [diff] [blame] | 2521 | invalidate_and_set_dirty(addr1, 2); |
Michael S. Tsirkin | 733f0b0 | 2010-04-06 14:18:19 +0300 | [diff] [blame] | 2522 | } |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2523 | } |
| 2524 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2525 | void stw_phys(hwaddr addr, uint32_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2526 | { |
| 2527 | stw_phys_internal(addr, val, DEVICE_NATIVE_ENDIAN); |
| 2528 | } |
| 2529 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2530 | void stw_le_phys(hwaddr addr, uint32_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2531 | { |
| 2532 | stw_phys_internal(addr, val, DEVICE_LITTLE_ENDIAN); |
| 2533 | } |
| 2534 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2535 | void stw_be_phys(hwaddr addr, uint32_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2536 | { |
| 2537 | stw_phys_internal(addr, val, DEVICE_BIG_ENDIAN); |
| 2538 | } |
| 2539 | |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2540 | /* XXX: optimize */ |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2541 | void stq_phys(hwaddr addr, uint64_t val) |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2542 | { |
| 2543 | val = tswap64(val); |
Stefan Weil | 71d2b72 | 2011-03-26 21:06:56 +0100 | [diff] [blame] | 2544 | cpu_physical_memory_write(addr, &val, 8); |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 2545 | } |
| 2546 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2547 | void stq_le_phys(hwaddr addr, uint64_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2548 | { |
| 2549 | val = cpu_to_le64(val); |
| 2550 | cpu_physical_memory_write(addr, &val, 8); |
| 2551 | } |
| 2552 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2553 | void stq_be_phys(hwaddr addr, uint64_t val) |
Alexander Graf | 1e78bcc | 2011-07-06 09:09:23 +0200 | [diff] [blame] | 2554 | { |
| 2555 | val = cpu_to_be64(val); |
| 2556 | cpu_physical_memory_write(addr, &val, 8); |
| 2557 | } |
| 2558 | |
aliguori | 5e2972f | 2009-03-28 17:51:36 +0000 | [diff] [blame] | 2559 | /* virtual memory access for debug (includes writing to ROM) */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 2560 | int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr, |
bellard | b448f2f | 2004-02-25 23:24:04 +0000 | [diff] [blame] | 2561 | uint8_t *buf, int len, int is_write) |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2562 | { |
| 2563 | int l; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2564 | hwaddr phys_addr; |
j_mayer | 9b3c35e | 2007-04-07 11:21:28 +0000 | [diff] [blame] | 2565 | target_ulong page; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2566 | |
| 2567 | while (len > 0) { |
| 2568 | page = addr & TARGET_PAGE_MASK; |
| 2569 | phys_addr = cpu_get_phys_page_debug(env, page); |
| 2570 | /* if no physical page mapped, return an error */ |
| 2571 | if (phys_addr == -1) |
| 2572 | return -1; |
| 2573 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2574 | if (l > len) |
| 2575 | l = len; |
aliguori | 5e2972f | 2009-03-28 17:51:36 +0000 | [diff] [blame] | 2576 | phys_addr += (addr & ~TARGET_PAGE_MASK); |
aliguori | 5e2972f | 2009-03-28 17:51:36 +0000 | [diff] [blame] | 2577 | if (is_write) |
| 2578 | cpu_physical_memory_write_rom(phys_addr, buf, l); |
| 2579 | else |
aliguori | 5e2972f | 2009-03-28 17:51:36 +0000 | [diff] [blame] | 2580 | cpu_physical_memory_rw(phys_addr, buf, l, is_write); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2581 | len -= l; |
| 2582 | buf += l; |
| 2583 | addr += l; |
| 2584 | } |
| 2585 | return 0; |
| 2586 | } |
Paul Brook | a68fe89 | 2010-03-01 00:08:59 +0000 | [diff] [blame] | 2587 | #endif |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2588 | |
Blue Swirl | 8e4a424 | 2013-01-06 18:30:17 +0000 | [diff] [blame] | 2589 | #if !defined(CONFIG_USER_ONLY) |
| 2590 | |
| 2591 | /* |
| 2592 | * A helper function for the _utterly broken_ virtio device model to find out if |
| 2593 | * it's running on a big endian machine. Don't do this at home kids! |
| 2594 | */ |
| 2595 | bool virtio_is_big_endian(void); |
| 2596 | bool virtio_is_big_endian(void) |
| 2597 | { |
| 2598 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2599 | return true; |
| 2600 | #else |
| 2601 | return false; |
| 2602 | #endif |
| 2603 | } |
| 2604 | |
| 2605 | #endif |
| 2606 | |
Wen Congyang | 76f3553 | 2012-05-07 12:04:18 +0800 | [diff] [blame] | 2607 | #ifndef CONFIG_USER_ONLY |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2608 | bool cpu_physical_memory_is_io(hwaddr phys_addr) |
Wen Congyang | 76f3553 | 2012-05-07 12:04:18 +0800 | [diff] [blame] | 2609 | { |
| 2610 | MemoryRegionSection *section; |
| 2611 | |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2612 | section = phys_page_find(address_space_memory.dispatch, |
| 2613 | phys_addr >> TARGET_PAGE_BITS); |
Wen Congyang | 76f3553 | 2012-05-07 12:04:18 +0800 | [diff] [blame] | 2614 | |
| 2615 | return !(memory_region_is_ram(section->mr) || |
| 2616 | memory_region_is_romd(section->mr)); |
| 2617 | } |
| 2618 | #endif |