David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 1 | /* |
| 2 | * QEMU sPAPR IOMMU (TCE) code |
| 3 | * |
| 4 | * Copyright (c) 2010 David Gibson, IBM Corporation <dwg@au1.ibm.com> |
| 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 |
Chetan Pant | 61f3c91 | 2020-10-23 12:44:24 +0000 | [diff] [blame] | 9 | * version 2.1 of the License, or (at your option) any later version. |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 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 |
| 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| 18 | */ |
Markus Armbruster | 0b8fa32 | 2019-05-23 16:35:07 +0200 | [diff] [blame] | 19 | |
Peter Maydell | 0d75590 | 2016-01-26 18:16:58 +0000 | [diff] [blame] | 20 | #include "qemu/osdep.h" |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 21 | #include "qemu/error-report.h" |
Paolo Bonzini | 03dd024 | 2015-12-15 13:16:16 +0100 | [diff] [blame] | 22 | #include "qemu/log.h" |
Markus Armbruster | 0b8fa32 | 2019-05-23 16:35:07 +0200 | [diff] [blame] | 23 | #include "qemu/module.h" |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame] | 24 | #include "sysemu/kvm.h" |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 25 | #include "kvm_ppc.h" |
Markus Armbruster | d645427 | 2019-08-12 07:23:45 +0200 | [diff] [blame] | 26 | #include "migration/vmstate.h" |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame] | 27 | #include "sysemu/dma.h" |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 28 | #include "exec/address-spaces.h" |
Alexey Kardashevskiy | 7e47226 | 2013-08-29 18:05:00 +1000 | [diff] [blame] | 29 | #include "trace.h" |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 30 | |
Paolo Bonzini | 0d09e41 | 2013-02-05 17:06:20 +0100 | [diff] [blame] | 31 | #include "hw/ppc/spapr.h" |
Alexey Kardashevskiy | ee9a569 | 2015-01-29 16:04:58 +1100 | [diff] [blame] | 32 | #include "hw/ppc/spapr_vio.h" |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 33 | |
| 34 | #include <libfdt.h> |
| 35 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 36 | enum SpaprTceAccess { |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 37 | SPAPR_TCE_FAULT = 0, |
| 38 | SPAPR_TCE_RO = 1, |
| 39 | SPAPR_TCE_WO = 2, |
| 40 | SPAPR_TCE_RW = 3, |
| 41 | }; |
| 42 | |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 43 | #define IOMMU_PAGE_SIZE(shift) (1ULL << (shift)) |
| 44 | #define IOMMU_PAGE_MASK(shift) (~(IOMMU_PAGE_SIZE(shift) - 1)) |
| 45 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 46 | static QLIST_HEAD(, SpaprTceTable) spapr_tce_tables; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 47 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 48 | SpaprTceTable *spapr_tce_find_by_liobn(target_ulong liobn) |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 49 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 50 | SpaprTceTable *tcet; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 51 | |
David Gibson | d426166 | 2013-04-29 18:33:51 +0000 | [diff] [blame] | 52 | if (liobn & 0xFFFFFFFF00000000ULL) { |
| 53 | hcall_dprintf("Request for out-of-bounds LIOBN 0x" TARGET_FMT_lx "\n", |
| 54 | liobn); |
| 55 | return NULL; |
| 56 | } |
| 57 | |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 58 | QLIST_FOREACH(tcet, &spapr_tce_tables, list) { |
Thomas Huth | f9ce8e0 | 2015-05-07 15:33:38 +1000 | [diff] [blame] | 59 | if (tcet->liobn == (uint32_t)liobn) { |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 60 | return tcet; |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | return NULL; |
| 65 | } |
| 66 | |
Greg Kurz | 5709af3 | 2015-07-02 16:23:12 +1000 | [diff] [blame] | 67 | static IOMMUAccessFlags spapr_tce_iommu_access_flags(uint64_t tce) |
| 68 | { |
| 69 | switch (tce & SPAPR_TCE_RW) { |
| 70 | case SPAPR_TCE_FAULT: |
| 71 | return IOMMU_NONE; |
| 72 | case SPAPR_TCE_RO: |
| 73 | return IOMMU_RO; |
| 74 | case SPAPR_TCE_WO: |
| 75 | return IOMMU_WO; |
| 76 | default: /* SPAPR_TCE_RW */ |
| 77 | return IOMMU_RW; |
| 78 | } |
| 79 | } |
| 80 | |
Alexey Kardashevskiy | fec5d3a | 2016-05-04 16:52:19 +1000 | [diff] [blame] | 81 | static uint64_t *spapr_tce_alloc_table(uint32_t liobn, |
| 82 | uint32_t page_shift, |
Alexey Kardashevskiy | d6ee2a7 | 2017-03-10 12:41:13 +1100 | [diff] [blame] | 83 | uint64_t bus_offset, |
Alexey Kardashevskiy | fec5d3a | 2016-05-04 16:52:19 +1000 | [diff] [blame] | 84 | uint32_t nb_table, |
| 85 | int *fd, |
| 86 | bool need_vfio) |
| 87 | { |
| 88 | uint64_t *table = NULL; |
Alexey Kardashevskiy | fec5d3a | 2016-05-04 16:52:19 +1000 | [diff] [blame] | 89 | |
Alexey Kardashevskiy | d6ee2a7 | 2017-03-10 12:41:13 +1100 | [diff] [blame] | 90 | if (kvm_enabled()) { |
| 91 | table = kvmppc_create_spapr_tce(liobn, page_shift, bus_offset, nb_table, |
| 92 | fd, need_vfio); |
Alexey Kardashevskiy | fec5d3a | 2016-05-04 16:52:19 +1000 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | if (!table) { |
| 96 | *fd = -1; |
Greg Kurz | dec4ec4 | 2018-11-27 14:05:18 +0100 | [diff] [blame] | 97 | table = g_new0(uint64_t, nb_table); |
Alexey Kardashevskiy | fec5d3a | 2016-05-04 16:52:19 +1000 | [diff] [blame] | 98 | } |
| 99 | |
| 100 | trace_spapr_iommu_new_table(liobn, table, *fd); |
| 101 | |
| 102 | return table; |
| 103 | } |
| 104 | |
| 105 | static void spapr_tce_free_table(uint64_t *table, int fd, uint32_t nb_table) |
| 106 | { |
| 107 | if (!kvm_enabled() || |
| 108 | (kvmppc_remove_spapr_tce(table, fd, nb_table) != 0)) { |
| 109 | g_free(table); |
| 110 | } |
| 111 | } |
| 112 | |
Paolo Bonzini | 79e2b9a | 2015-01-21 12:09:14 +0100 | [diff] [blame] | 113 | /* Called from RCU critical section */ |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 114 | static IOMMUTLBEntry spapr_tce_translate_iommu(IOMMUMemoryRegion *iommu, |
| 115 | hwaddr addr, |
Peter Maydell | 2c91bcf | 2018-06-15 14:57:16 +0100 | [diff] [blame] | 116 | IOMMUAccessFlags flag, |
| 117 | int iommu_idx) |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 118 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 119 | SpaprTceTable *tcet = container_of(iommu, SpaprTceTable, iommu); |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 120 | uint64_t tce; |
Alexey Kardashevskiy | 7e47226 | 2013-08-29 18:05:00 +1000 | [diff] [blame] | 121 | IOMMUTLBEntry ret = { |
| 122 | .target_as = &address_space_memory, |
| 123 | .iova = 0, |
| 124 | .translated_addr = 0, |
| 125 | .addr_mask = ~(hwaddr)0, |
| 126 | .perm = IOMMU_NONE, |
| 127 | }; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 128 | |
Alexey Kardashevskiy | ee9a569 | 2015-01-29 16:04:58 +1100 | [diff] [blame] | 129 | if ((addr >> tcet->page_shift) < tcet->nb_table) { |
Alexey Kardashevskiy | 7e47226 | 2013-08-29 18:05:00 +1000 | [diff] [blame] | 130 | /* Check if we are in bound */ |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 131 | hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); |
| 132 | |
| 133 | tce = tcet->table[addr >> tcet->page_shift]; |
| 134 | ret.iova = addr & page_mask; |
| 135 | ret.translated_addr = tce & page_mask; |
| 136 | ret.addr_mask = ~page_mask; |
Greg Kurz | 5709af3 | 2015-07-02 16:23:12 +1000 | [diff] [blame] | 137 | ret.perm = spapr_tce_iommu_access_flags(tce); |
David Gibson | 53724ee | 2012-09-12 16:57:20 +0000 | [diff] [blame] | 138 | } |
Alexey Kardashevskiy | a14f04e | 2019-08-12 15:42:02 +1000 | [diff] [blame] | 139 | trace_spapr_iommu_xlate(tcet->liobn, addr, ret.translated_addr, ret.perm, |
Alexey Kardashevskiy | 7e47226 | 2013-08-29 18:05:00 +1000 | [diff] [blame] | 140 | ret.addr_mask); |
David Gibson | 53724ee | 2012-09-12 16:57:20 +0000 | [diff] [blame] | 141 | |
Alexey Kardashevskiy | 7e47226 | 2013-08-29 18:05:00 +1000 | [diff] [blame] | 142 | return ret; |
Paolo Bonzini | a71bfbf | 2013-04-16 15:05:06 +0200 | [diff] [blame] | 143 | } |
| 144 | |
Alexey Kardashevskiy | 5f36666 | 2019-03-07 16:05:16 +1100 | [diff] [blame] | 145 | static void spapr_tce_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n) |
| 146 | { |
| 147 | MemoryRegion *mr = MEMORY_REGION(iommu_mr); |
| 148 | IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr); |
| 149 | hwaddr addr, granularity; |
| 150 | IOMMUTLBEntry iotlb; |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 151 | SpaprTceTable *tcet = container_of(iommu_mr, SpaprTceTable, iommu); |
Alexey Kardashevskiy | 5f36666 | 2019-03-07 16:05:16 +1100 | [diff] [blame] | 152 | |
| 153 | if (tcet->skipping_replay) { |
| 154 | return; |
| 155 | } |
| 156 | |
| 157 | granularity = memory_region_iommu_get_min_page_size(iommu_mr); |
| 158 | |
| 159 | for (addr = 0; addr < memory_region_size(mr); addr += granularity) { |
| 160 | iotlb = imrc->translate(iommu_mr, addr, IOMMU_NONE, n->iommu_idx); |
| 161 | if (iotlb.perm != IOMMU_NONE) { |
| 162 | n->notify(n, &iotlb); |
| 163 | } |
| 164 | |
| 165 | /* |
| 166 | * if (2^64 - MR size) < granularity, it's possible to get an |
| 167 | * infinite loop here. This should catch such a wraparound. |
| 168 | */ |
| 169 | if ((addr + granularity) < addr) { |
| 170 | break; |
| 171 | } |
| 172 | } |
| 173 | } |
| 174 | |
Dr. David Alan Gilbert | 44b1ff3 | 2017-09-25 12:29:12 +0100 | [diff] [blame] | 175 | static int spapr_tce_table_pre_save(void *opaque) |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 176 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 177 | SpaprTceTable *tcet = SPAPR_TCE_TABLE(opaque); |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 178 | |
| 179 | tcet->mig_table = tcet->table; |
| 180 | tcet->mig_nb_table = tcet->nb_table; |
| 181 | |
| 182 | trace_spapr_iommu_pre_save(tcet->liobn, tcet->mig_nb_table, |
| 183 | tcet->bus_offset, tcet->page_shift); |
Dr. David Alan Gilbert | 44b1ff3 | 2017-09-25 12:29:12 +0100 | [diff] [blame] | 184 | |
| 185 | return 0; |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 186 | } |
| 187 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 188 | static uint64_t spapr_tce_get_min_page_size(IOMMUMemoryRegion *iommu) |
Alexey Kardashevskiy | f682e9c | 2016-06-21 11:14:01 +1000 | [diff] [blame] | 189 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 190 | SpaprTceTable *tcet = container_of(iommu, SpaprTceTable, iommu); |
Alexey Kardashevskiy | f682e9c | 2016-06-21 11:14:01 +1000 | [diff] [blame] | 191 | |
| 192 | return 1ULL << tcet->page_shift; |
| 193 | } |
| 194 | |
Alexey Kardashevskiy | 9ded780 | 2018-02-06 11:08:24 -0700 | [diff] [blame] | 195 | static int spapr_tce_get_attr(IOMMUMemoryRegion *iommu, |
| 196 | enum IOMMUMemoryRegionAttr attr, void *data) |
| 197 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 198 | SpaprTceTable *tcet = container_of(iommu, SpaprTceTable, iommu); |
Alexey Kardashevskiy | 9ded780 | 2018-02-06 11:08:24 -0700 | [diff] [blame] | 199 | |
| 200 | if (attr == IOMMU_ATTR_SPAPR_TCE_FD && kvmppc_has_cap_spapr_vfio()) { |
| 201 | *(int *) data = tcet->fd; |
| 202 | return 0; |
| 203 | } |
| 204 | |
| 205 | return -EINVAL; |
| 206 | } |
| 207 | |
Eric Auger | 549d4005 | 2019-09-24 10:25:17 +0200 | [diff] [blame] | 208 | static int spapr_tce_notify_flag_changed(IOMMUMemoryRegion *iommu, |
| 209 | IOMMUNotifierFlag old, |
| 210 | IOMMUNotifierFlag new, |
| 211 | Error **errp) |
Alexey Kardashevskiy | 606b549 | 2016-07-04 13:33:03 +1000 | [diff] [blame] | 212 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 213 | struct SpaprTceTable *tbl = container_of(iommu, SpaprTceTable, iommu); |
Alexey Kardashevskiy | 606b549 | 2016-07-04 13:33:03 +1000 | [diff] [blame] | 214 | |
Peter Xu | 5bf3d31 | 2016-09-23 13:02:27 +0800 | [diff] [blame] | 215 | if (old == IOMMU_NOTIFIER_NONE && new != IOMMU_NOTIFIER_NONE) { |
| 216 | spapr_tce_set_need_vfio(tbl, true); |
| 217 | } else if (old != IOMMU_NOTIFIER_NONE && new == IOMMU_NOTIFIER_NONE) { |
| 218 | spapr_tce_set_need_vfio(tbl, false); |
| 219 | } |
Eric Auger | 549d4005 | 2019-09-24 10:25:17 +0200 | [diff] [blame] | 220 | return 0; |
Alexey Kardashevskiy | 606b549 | 2016-07-04 13:33:03 +1000 | [diff] [blame] | 221 | } |
| 222 | |
Alexey Kardashevskiy | ee9a569 | 2015-01-29 16:04:58 +1100 | [diff] [blame] | 223 | static int spapr_tce_table_post_load(void *opaque, int version_id) |
| 224 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 225 | SpaprTceTable *tcet = SPAPR_TCE_TABLE(opaque); |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 226 | uint32_t old_nb_table = tcet->nb_table; |
| 227 | uint64_t old_bus_offset = tcet->bus_offset; |
| 228 | uint32_t old_page_shift = tcet->page_shift; |
Alexey Kardashevskiy | ee9a569 | 2015-01-29 16:04:58 +1100 | [diff] [blame] | 229 | |
| 230 | if (tcet->vdev) { |
| 231 | spapr_vio_set_bypass(tcet->vdev, tcet->bypass); |
| 232 | } |
| 233 | |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 234 | if (tcet->mig_nb_table != tcet->nb_table) { |
| 235 | spapr_tce_table_disable(tcet); |
| 236 | } |
| 237 | |
| 238 | if (tcet->mig_nb_table) { |
| 239 | if (!tcet->nb_table) { |
| 240 | spapr_tce_table_enable(tcet, old_page_shift, old_bus_offset, |
| 241 | tcet->mig_nb_table); |
| 242 | } |
| 243 | |
| 244 | memcpy(tcet->table, tcet->mig_table, |
| 245 | tcet->nb_table * sizeof(tcet->table[0])); |
| 246 | |
| 247 | free(tcet->mig_table); |
| 248 | tcet->mig_table = NULL; |
| 249 | } |
| 250 | |
| 251 | trace_spapr_iommu_post_load(tcet->liobn, old_nb_table, tcet->nb_table, |
| 252 | tcet->bus_offset, tcet->page_shift); |
| 253 | |
Alexey Kardashevskiy | ee9a569 | 2015-01-29 16:04:58 +1100 | [diff] [blame] | 254 | return 0; |
| 255 | } |
| 256 | |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 257 | static bool spapr_tce_table_ex_needed(void *opaque) |
| 258 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 259 | SpaprTceTable *tcet = opaque; |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 260 | |
| 261 | return tcet->bus_offset || tcet->page_shift != 0xC; |
| 262 | } |
| 263 | |
| 264 | static const VMStateDescription vmstate_spapr_tce_table_ex = { |
| 265 | .name = "spapr_iommu_ex", |
| 266 | .version_id = 1, |
| 267 | .minimum_version_id = 1, |
| 268 | .needed = spapr_tce_table_ex_needed, |
| 269 | .fields = (VMStateField[]) { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 270 | VMSTATE_UINT64(bus_offset, SpaprTceTable), |
| 271 | VMSTATE_UINT32(page_shift, SpaprTceTable), |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 272 | VMSTATE_END_OF_LIST() |
| 273 | }, |
| 274 | }; |
| 275 | |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 276 | static const VMStateDescription vmstate_spapr_tce_table = { |
| 277 | .name = "spapr_iommu", |
Alexey Kardashevskiy | 523e7b8 | 2014-05-27 15:36:35 +1000 | [diff] [blame] | 278 | .version_id = 2, |
| 279 | .minimum_version_id = 2, |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 280 | .pre_save = spapr_tce_table_pre_save, |
Alexey Kardashevskiy | ee9a569 | 2015-01-29 16:04:58 +1100 | [diff] [blame] | 281 | .post_load = spapr_tce_table_post_load, |
Alexey Kardashevskiy | 523e7b8 | 2014-05-27 15:36:35 +1000 | [diff] [blame] | 282 | .fields = (VMStateField []) { |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 283 | /* Sanity check */ |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 284 | VMSTATE_UINT32_EQUAL(liobn, SpaprTceTable, NULL), |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 285 | |
| 286 | /* IOMMU state */ |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 287 | VMSTATE_UINT32(mig_nb_table, SpaprTceTable), |
| 288 | VMSTATE_BOOL(bypass, SpaprTceTable), |
| 289 | VMSTATE_VARRAY_UINT32_ALLOC(mig_table, SpaprTceTable, mig_nb_table, 0, |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 290 | vmstate_info_uint64, uint64_t), |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 291 | |
| 292 | VMSTATE_END_OF_LIST() |
| 293 | }, |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 294 | .subsections = (const VMStateDescription*[]) { |
| 295 | &vmstate_spapr_tce_table_ex, |
| 296 | NULL |
| 297 | } |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 298 | }; |
| 299 | |
Greg Kurz | a931ad1 | 2017-07-25 19:59:06 +0200 | [diff] [blame] | 300 | static void spapr_tce_table_realize(DeviceState *dev, Error **errp) |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 301 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 302 | SpaprTceTable *tcet = SPAPR_TCE_TABLE(dev); |
Alexey Kardashevskiy | b4b6eb7 | 2016-06-01 18:57:35 +1000 | [diff] [blame] | 303 | Object *tcetobj = OBJECT(tcet); |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 304 | gchar *tmp; |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 305 | |
Alexey Kardashevskiy | fec5d3a | 2016-05-04 16:52:19 +1000 | [diff] [blame] | 306 | tcet->fd = -1; |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 307 | tcet->need_vfio = false; |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 308 | tmp = g_strdup_printf("tce-root-%x", tcet->liobn); |
Alexey Kardashevskiy | b4b6eb7 | 2016-06-01 18:57:35 +1000 | [diff] [blame] | 309 | memory_region_init(&tcet->root, tcetobj, tmp, UINT64_MAX); |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 310 | g_free(tmp); |
Alexey Kardashevskiy | b4b6eb7 | 2016-06-01 18:57:35 +1000 | [diff] [blame] | 311 | |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 312 | tmp = g_strdup_printf("tce-iommu-%x", tcet->liobn); |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 313 | memory_region_init_iommu(&tcet->iommu, sizeof(tcet->iommu), |
| 314 | TYPE_SPAPR_IOMMU_MEMORY_REGION, |
| 315 | tcetobj, tmp, 0); |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 316 | g_free(tmp); |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 317 | |
| 318 | QLIST_INSERT_HEAD(&spapr_tce_tables, tcet, list); |
| 319 | |
Marc-André Lureau | 3cad405 | 2019-08-28 16:02:32 +0400 | [diff] [blame] | 320 | vmstate_register(VMSTATE_IF(tcet), tcet->liobn, &vmstate_spapr_tce_table, |
Alexey Kardashevskiy | 00d4f52 | 2014-05-12 18:46:32 +1000 | [diff] [blame] | 321 | tcet); |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 322 | } |
| 323 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 324 | void spapr_tce_set_need_vfio(SpaprTceTable *tcet, bool need_vfio) |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 325 | { |
| 326 | size_t table_size = tcet->nb_table * sizeof(uint64_t); |
Alexey Kardashevskiy | f5509b6 | 2017-07-20 17:22:29 +1000 | [diff] [blame] | 327 | uint64_t *oldtable; |
| 328 | int newfd = -1; |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 329 | |
Alexey Kardashevskiy | f5509b6 | 2017-07-20 17:22:29 +1000 | [diff] [blame] | 330 | g_assert(need_vfio != tcet->need_vfio); |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 331 | |
Alexey Kardashevskiy | f5509b6 | 2017-07-20 17:22:29 +1000 | [diff] [blame] | 332 | tcet->need_vfio = need_vfio; |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 333 | |
Alexey Kardashevskiy | 9ded780 | 2018-02-06 11:08:24 -0700 | [diff] [blame] | 334 | if (!need_vfio || (tcet->fd != -1 && kvmppc_has_cap_spapr_vfio())) { |
| 335 | return; |
| 336 | } |
| 337 | |
Alexey Kardashevskiy | f5509b6 | 2017-07-20 17:22:29 +1000 | [diff] [blame] | 338 | oldtable = tcet->table; |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 339 | |
Alexey Kardashevskiy | f5509b6 | 2017-07-20 17:22:29 +1000 | [diff] [blame] | 340 | tcet->table = spapr_tce_alloc_table(tcet->liobn, |
| 341 | tcet->page_shift, |
| 342 | tcet->bus_offset, |
| 343 | tcet->nb_table, |
| 344 | &newfd, |
| 345 | need_vfio); |
| 346 | memcpy(tcet->table, oldtable, table_size); |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 347 | |
Alexey Kardashevskiy | f5509b6 | 2017-07-20 17:22:29 +1000 | [diff] [blame] | 348 | spapr_tce_free_table(oldtable, tcet->fd, tcet->nb_table); |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 349 | |
Alexey Kardashevskiy | f5509b6 | 2017-07-20 17:22:29 +1000 | [diff] [blame] | 350 | tcet->fd = newfd; |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 351 | } |
| 352 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 353 | SpaprTceTable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn) |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 354 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 355 | SpaprTceTable *tcet; |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 356 | gchar *tmp; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 357 | |
David Gibson | 8b1853e | 2012-12-03 16:42:13 +0000 | [diff] [blame] | 358 | if (spapr_tce_find_by_liobn(liobn)) { |
Cédric Le Goater | ce9863b | 2016-08-02 19:38:00 +0200 | [diff] [blame] | 359 | error_report("Attempted to create TCE table with duplicate" |
| 360 | " LIOBN 0x%x", liobn); |
David Gibson | 8b1853e | 2012-12-03 16:42:13 +0000 | [diff] [blame] | 361 | return NULL; |
| 362 | } |
| 363 | |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 364 | tcet = SPAPR_TCE_TABLE(object_new(TYPE_SPAPR_TCE_TABLE)); |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 365 | tcet->liobn = liobn; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 366 | |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 367 | tmp = g_strdup_printf("tce-table-%x", liobn); |
Markus Armbruster | d262312 | 2020-05-05 17:29:22 +0200 | [diff] [blame] | 368 | object_property_add_child(OBJECT(owner), tmp, OBJECT(tcet)); |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 369 | g_free(tmp); |
Michael Roth | 8dc9785 | 2017-07-25 20:00:09 +0200 | [diff] [blame] | 370 | object_unref(OBJECT(tcet)); |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 371 | |
Markus Armbruster | ce189ab | 2020-06-10 07:32:45 +0200 | [diff] [blame] | 372 | qdev_realize(DEVICE(tcet), NULL, NULL); |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 373 | |
Paolo Bonzini | 2b7dc94 | 2013-04-10 17:30:48 +0200 | [diff] [blame] | 374 | return tcet; |
| 375 | } |
| 376 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 377 | void spapr_tce_table_enable(SpaprTceTable *tcet, |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 378 | uint32_t page_shift, uint64_t bus_offset, |
| 379 | uint32_t nb_table) |
| 380 | { |
| 381 | if (tcet->nb_table) { |
Alistair Francis | 3dc6f86 | 2017-07-12 06:57:41 -0700 | [diff] [blame] | 382 | warn_report("trying to enable already enabled TCE table"); |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 383 | return; |
| 384 | } |
| 385 | |
| 386 | tcet->bus_offset = bus_offset; |
| 387 | tcet->page_shift = page_shift; |
| 388 | tcet->nb_table = nb_table; |
| 389 | tcet->table = spapr_tce_alloc_table(tcet->liobn, |
| 390 | tcet->page_shift, |
Alexey Kardashevskiy | d6ee2a7 | 2017-03-10 12:41:13 +1100 | [diff] [blame] | 391 | tcet->bus_offset, |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 392 | tcet->nb_table, |
| 393 | &tcet->fd, |
| 394 | tcet->need_vfio); |
| 395 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 396 | memory_region_set_size(MEMORY_REGION(&tcet->iommu), |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 397 | (uint64_t)tcet->nb_table << tcet->page_shift); |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 398 | memory_region_add_subregion(&tcet->root, tcet->bus_offset, |
| 399 | MEMORY_REGION(&tcet->iommu)); |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 400 | } |
| 401 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 402 | void spapr_tce_table_disable(SpaprTceTable *tcet) |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 403 | { |
| 404 | if (!tcet->nb_table) { |
| 405 | return; |
| 406 | } |
| 407 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 408 | memory_region_del_subregion(&tcet->root, MEMORY_REGION(&tcet->iommu)); |
| 409 | memory_region_set_size(MEMORY_REGION(&tcet->iommu), 0); |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 410 | |
| 411 | spapr_tce_free_table(tcet->table, tcet->fd, tcet->nb_table); |
| 412 | tcet->fd = -1; |
| 413 | tcet->table = NULL; |
| 414 | tcet->bus_offset = 0; |
| 415 | tcet->page_shift = 0; |
| 416 | tcet->nb_table = 0; |
| 417 | } |
| 418 | |
Markus Armbruster | b69c3c2 | 2020-05-05 17:29:24 +0200 | [diff] [blame] | 419 | static void spapr_tce_table_unrealize(DeviceState *dev) |
Paolo Bonzini | 2b7dc94 | 2013-04-10 17:30:48 +0200 | [diff] [blame] | 420 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 421 | SpaprTceTable *tcet = SPAPR_TCE_TABLE(dev); |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 422 | |
Marc-André Lureau | 3cad405 | 2019-08-28 16:02:32 +0400 | [diff] [blame] | 423 | vmstate_unregister(VMSTATE_IF(tcet), &vmstate_spapr_tce_table, tcet); |
Greg Kurz | ea359d2 | 2017-07-25 20:00:22 +0200 | [diff] [blame] | 424 | |
Paolo Bonzini | 2b7dc94 | 2013-04-10 17:30:48 +0200 | [diff] [blame] | 425 | QLIST_REMOVE(tcet, list); |
| 426 | |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 427 | spapr_tce_table_disable(tcet); |
Paolo Bonzini | 2b7dc94 | 2013-04-10 17:30:48 +0200 | [diff] [blame] | 428 | } |
| 429 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 430 | MemoryRegion *spapr_tce_get_iommu(SpaprTceTable *tcet) |
Paolo Bonzini | a84bb43 | 2013-04-11 12:35:33 +0200 | [diff] [blame] | 431 | { |
Alexey Kardashevskiy | b4b6eb7 | 2016-06-01 18:57:35 +1000 | [diff] [blame] | 432 | return &tcet->root; |
Paolo Bonzini | a84bb43 | 2013-04-11 12:35:33 +0200 | [diff] [blame] | 433 | } |
| 434 | |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 435 | static void spapr_tce_reset(DeviceState *dev) |
David Gibson | eddeed2 | 2012-09-12 16:57:14 +0000 | [diff] [blame] | 436 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 437 | SpaprTceTable *tcet = SPAPR_TCE_TABLE(dev); |
Alexey Kardashevskiy | 523e7b8 | 2014-05-27 15:36:35 +1000 | [diff] [blame] | 438 | size_t table_size = tcet->nb_table * sizeof(uint64_t); |
David Gibson | eddeed2 | 2012-09-12 16:57:14 +0000 | [diff] [blame] | 439 | |
David Gibson | 57c0eb1 | 2016-08-08 10:06:25 +1000 | [diff] [blame] | 440 | if (tcet->nb_table) { |
| 441 | memset(tcet->table, 0, table_size); |
| 442 | } |
David Gibson | eddeed2 | 2012-09-12 16:57:14 +0000 | [diff] [blame] | 443 | } |
| 444 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 445 | static target_ulong put_tce_emu(SpaprTceTable *tcet, target_ulong ioba, |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 446 | target_ulong tce) |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 447 | { |
Eugenio Pérez | 5039caf | 2020-11-16 17:55:03 +0100 | [diff] [blame] | 448 | IOMMUTLBEvent event; |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 449 | hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); |
Alexey Kardashevskiy | 1b8ecee | 2014-05-27 15:36:37 +1000 | [diff] [blame] | 450 | unsigned long index = (ioba - tcet->bus_offset) >> tcet->page_shift; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 451 | |
Alexey Kardashevskiy | 1b8ecee | 2014-05-27 15:36:37 +1000 | [diff] [blame] | 452 | if (index >= tcet->nb_table) { |
David Gibson | b55519a | 2013-04-29 18:33:52 +0000 | [diff] [blame] | 453 | hcall_dprintf("spapr_vio_put_tce on out-of-bounds IOBA 0x" |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 454 | TARGET_FMT_lx "\n", ioba); |
| 455 | return H_PARAMETER; |
| 456 | } |
| 457 | |
Alexey Kardashevskiy | 1b8ecee | 2014-05-27 15:36:37 +1000 | [diff] [blame] | 458 | tcet->table[index] = tce; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 459 | |
Eugenio Pérez | 5039caf | 2020-11-16 17:55:03 +0100 | [diff] [blame] | 460 | event.entry.target_as = &address_space_memory, |
| 461 | event.entry.iova = (ioba - tcet->bus_offset) & page_mask; |
| 462 | event.entry.translated_addr = tce & page_mask; |
| 463 | event.entry.addr_mask = ~page_mask; |
| 464 | event.entry.perm = spapr_tce_iommu_access_flags(tce); |
| 465 | event.type = event.entry.perm ? IOMMU_NOTIFIER_MAP : IOMMU_NOTIFIER_UNMAP; |
| 466 | memory_region_notify_iommu(&tcet->iommu, 0, event); |
Paolo Bonzini | a84bb43 | 2013-04-11 12:35:33 +0200 | [diff] [blame] | 467 | |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 468 | return H_SUCCESS; |
| 469 | } |
| 470 | |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 471 | static target_ulong h_put_tce_indirect(PowerPCCPU *cpu, |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 472 | SpaprMachineState *spapr, |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 473 | target_ulong opcode, target_ulong *args) |
| 474 | { |
| 475 | int i; |
| 476 | target_ulong liobn = args[0]; |
| 477 | target_ulong ioba = args[1]; |
| 478 | target_ulong ioba1 = ioba; |
| 479 | target_ulong tce_list = args[2]; |
| 480 | target_ulong npages = args[3]; |
Alexey Kardashevskiy | f1215ea | 2015-05-07 15:33:29 +1000 | [diff] [blame] | 481 | target_ulong ret = H_PARAMETER, tce = 0; |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 482 | SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 483 | CPUState *cs = CPU(cpu); |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 484 | hwaddr page_mask, page_size; |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 485 | |
| 486 | if (!tcet) { |
| 487 | return H_PARAMETER; |
| 488 | } |
| 489 | |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 490 | if ((npages > 512) || (tce_list & SPAPR_TCE_PAGE_MASK)) { |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 491 | return H_PARAMETER; |
| 492 | } |
| 493 | |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 494 | page_mask = IOMMU_PAGE_MASK(tcet->page_shift); |
| 495 | page_size = IOMMU_PAGE_SIZE(tcet->page_shift); |
| 496 | ioba &= page_mask; |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 497 | |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 498 | for (i = 0; i < npages; ++i, ioba += page_size) { |
Greg Kurz | 4d9ab7d | 2015-07-02 16:23:11 +1000 | [diff] [blame] | 499 | tce = ldq_be_phys(cs->as, tce_list + i * sizeof(target_ulong)); |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 500 | |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 501 | ret = put_tce_emu(tcet, ioba, tce); |
| 502 | if (ret) { |
| 503 | break; |
| 504 | } |
| 505 | } |
| 506 | |
| 507 | /* Trace last successful or the first problematic entry */ |
| 508 | i = i ? (i - 1) : 0; |
Alexey Kardashevskiy | d9d96a3 | 2015-05-07 15:33:33 +1000 | [diff] [blame] | 509 | if (SPAPR_IS_PCI_LIOBN(liobn)) { |
| 510 | trace_spapr_iommu_pci_indirect(liobn, ioba1, tce_list, i, tce, ret); |
| 511 | } else { |
| 512 | trace_spapr_iommu_indirect(liobn, ioba1, tce_list, i, tce, ret); |
| 513 | } |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 514 | return ret; |
| 515 | } |
| 516 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 517 | static target_ulong h_stuff_tce(PowerPCCPU *cpu, SpaprMachineState *spapr, |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 518 | target_ulong opcode, target_ulong *args) |
| 519 | { |
| 520 | int i; |
| 521 | target_ulong liobn = args[0]; |
| 522 | target_ulong ioba = args[1]; |
| 523 | target_ulong tce_value = args[2]; |
| 524 | target_ulong npages = args[3]; |
| 525 | target_ulong ret = H_PARAMETER; |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 526 | SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 527 | hwaddr page_mask, page_size; |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 528 | |
| 529 | if (!tcet) { |
| 530 | return H_PARAMETER; |
| 531 | } |
| 532 | |
| 533 | if (npages > tcet->nb_table) { |
| 534 | return H_PARAMETER; |
| 535 | } |
| 536 | |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 537 | page_mask = IOMMU_PAGE_MASK(tcet->page_shift); |
| 538 | page_size = IOMMU_PAGE_SIZE(tcet->page_shift); |
| 539 | ioba &= page_mask; |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 540 | |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 541 | for (i = 0; i < npages; ++i, ioba += page_size) { |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 542 | ret = put_tce_emu(tcet, ioba, tce_value); |
| 543 | if (ret) { |
| 544 | break; |
| 545 | } |
| 546 | } |
Alexey Kardashevskiy | d9d96a3 | 2015-05-07 15:33:33 +1000 | [diff] [blame] | 547 | if (SPAPR_IS_PCI_LIOBN(liobn)) { |
| 548 | trace_spapr_iommu_pci_stuff(liobn, ioba, tce_value, npages, ret); |
| 549 | } else { |
| 550 | trace_spapr_iommu_stuff(liobn, ioba, tce_value, npages, ret); |
| 551 | } |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 552 | |
| 553 | return ret; |
| 554 | } |
| 555 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 556 | static target_ulong h_put_tce(PowerPCCPU *cpu, SpaprMachineState *spapr, |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 557 | target_ulong opcode, target_ulong *args) |
| 558 | { |
| 559 | target_ulong liobn = args[0]; |
| 560 | target_ulong ioba = args[1]; |
| 561 | target_ulong tce = args[2]; |
Alexey Kardashevskiy | 7e47226 | 2013-08-29 18:05:00 +1000 | [diff] [blame] | 562 | target_ulong ret = H_PARAMETER; |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 563 | SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 564 | |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 565 | if (tcet) { |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 566 | hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); |
| 567 | |
| 568 | ioba &= page_mask; |
| 569 | |
Alexey Kardashevskiy | 7e47226 | 2013-08-29 18:05:00 +1000 | [diff] [blame] | 570 | ret = put_tce_emu(tcet, ioba, tce); |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 571 | } |
Alexey Kardashevskiy | d9d96a3 | 2015-05-07 15:33:33 +1000 | [diff] [blame] | 572 | if (SPAPR_IS_PCI_LIOBN(liobn)) { |
| 573 | trace_spapr_iommu_pci_put(liobn, ioba, tce, ret); |
| 574 | } else { |
| 575 | trace_spapr_iommu_put(liobn, ioba, tce, ret); |
| 576 | } |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 577 | |
Alexey Kardashevskiy | 7e47226 | 2013-08-29 18:05:00 +1000 | [diff] [blame] | 578 | return ret; |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 579 | } |
| 580 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 581 | static target_ulong get_tce_emu(SpaprTceTable *tcet, target_ulong ioba, |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 582 | target_ulong *tce) |
| 583 | { |
Alexey Kardashevskiy | 1b8ecee | 2014-05-27 15:36:37 +1000 | [diff] [blame] | 584 | unsigned long index = (ioba - tcet->bus_offset) >> tcet->page_shift; |
| 585 | |
| 586 | if (index >= tcet->nb_table) { |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 587 | hcall_dprintf("spapr_iommu_get_tce on out-of-bounds IOBA 0x" |
| 588 | TARGET_FMT_lx "\n", ioba); |
| 589 | return H_PARAMETER; |
| 590 | } |
| 591 | |
Alexey Kardashevskiy | 1b8ecee | 2014-05-27 15:36:37 +1000 | [diff] [blame] | 592 | *tce = tcet->table[index]; |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 593 | |
| 594 | return H_SUCCESS; |
| 595 | } |
| 596 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 597 | static target_ulong h_get_tce(PowerPCCPU *cpu, SpaprMachineState *spapr, |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 598 | target_ulong opcode, target_ulong *args) |
| 599 | { |
| 600 | target_ulong liobn = args[0]; |
| 601 | target_ulong ioba = args[1]; |
| 602 | target_ulong tce = 0; |
| 603 | target_ulong ret = H_PARAMETER; |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 604 | SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 605 | |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 606 | if (tcet) { |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 607 | hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); |
| 608 | |
| 609 | ioba &= page_mask; |
| 610 | |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 611 | ret = get_tce_emu(tcet, ioba, &tce); |
| 612 | if (!ret) { |
| 613 | args[0] = tce; |
| 614 | } |
| 615 | } |
Alexey Kardashevskiy | d9d96a3 | 2015-05-07 15:33:33 +1000 | [diff] [blame] | 616 | if (SPAPR_IS_PCI_LIOBN(liobn)) { |
| 617 | trace_spapr_iommu_pci_get(liobn, ioba, ret, tce); |
| 618 | } else { |
| 619 | trace_spapr_iommu_get(liobn, ioba, ret, tce); |
| 620 | } |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 621 | |
| 622 | return ret; |
| 623 | } |
| 624 | |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 625 | int spapr_dma_dt(void *fdt, int node_off, const char *propname, |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 626 | uint32_t liobn, uint64_t window, uint32_t size) |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 627 | { |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 628 | uint32_t dma_prop[5]; |
| 629 | int ret; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 630 | |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 631 | dma_prop[0] = cpu_to_be32(liobn); |
| 632 | dma_prop[1] = cpu_to_be32(window >> 32); |
| 633 | dma_prop[2] = cpu_to_be32(window & 0xFFFFFFFF); |
| 634 | dma_prop[3] = 0; /* window size is 32 bits */ |
| 635 | dma_prop[4] = cpu_to_be32(size); |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 636 | |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 637 | ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-address-cells", 2); |
| 638 | if (ret < 0) { |
| 639 | return ret; |
| 640 | } |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 641 | |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 642 | ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-size-cells", 2); |
| 643 | if (ret < 0) { |
| 644 | return ret; |
| 645 | } |
| 646 | |
| 647 | ret = fdt_setprop(fdt, node_off, propname, dma_prop, sizeof(dma_prop)); |
| 648 | if (ret < 0) { |
| 649 | return ret; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 650 | } |
| 651 | |
| 652 | return 0; |
| 653 | } |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 654 | |
| 655 | int spapr_tcet_dma_dt(void *fdt, int node_off, const char *propname, |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 656 | SpaprTceTable *tcet) |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 657 | { |
Paolo Bonzini | 2b7dc94 | 2013-04-10 17:30:48 +0200 | [diff] [blame] | 658 | if (!tcet) { |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 659 | return 0; |
| 660 | } |
| 661 | |
Paolo Bonzini | 2b7dc94 | 2013-04-10 17:30:48 +0200 | [diff] [blame] | 662 | return spapr_dma_dt(fdt, node_off, propname, |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 663 | tcet->liobn, 0, tcet->nb_table << tcet->page_shift); |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 664 | } |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 665 | |
| 666 | static void spapr_tce_table_class_init(ObjectClass *klass, void *data) |
| 667 | { |
| 668 | DeviceClass *dc = DEVICE_CLASS(klass); |
Greg Kurz | a931ad1 | 2017-07-25 19:59:06 +0200 | [diff] [blame] | 669 | dc->realize = spapr_tce_table_realize; |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 670 | dc->reset = spapr_tce_reset; |
David Gibson | 5f9490d | 2014-12-08 13:48:02 +1100 | [diff] [blame] | 671 | dc->unrealize = spapr_tce_table_unrealize; |
Thomas Huth | 1f98e55 | 2017-08-17 16:19:16 +0200 | [diff] [blame] | 672 | /* Reason: This is just an internal device for handling the hypercalls */ |
| 673 | dc->user_creatable = false; |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 674 | |
| 675 | QLIST_INIT(&spapr_tce_tables); |
| 676 | |
| 677 | /* hcall-tce */ |
| 678 | spapr_register_hypercall(H_PUT_TCE, h_put_tce); |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 679 | spapr_register_hypercall(H_GET_TCE, h_get_tce); |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 680 | spapr_register_hypercall(H_PUT_TCE_INDIRECT, h_put_tce_indirect); |
| 681 | spapr_register_hypercall(H_STUFF_TCE, h_stuff_tce); |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 682 | } |
| 683 | |
| 684 | static TypeInfo spapr_tce_table_info = { |
| 685 | .name = TYPE_SPAPR_TCE_TABLE, |
| 686 | .parent = TYPE_DEVICE, |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 687 | .instance_size = sizeof(SpaprTceTable), |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 688 | .class_init = spapr_tce_table_class_init, |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 689 | }; |
| 690 | |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 691 | static void spapr_iommu_memory_region_class_init(ObjectClass *klass, void *data) |
| 692 | { |
| 693 | IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass); |
| 694 | |
| 695 | imrc->translate = spapr_tce_translate_iommu; |
Alexey Kardashevskiy | 5f36666 | 2019-03-07 16:05:16 +1100 | [diff] [blame] | 696 | imrc->replay = spapr_tce_replay; |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 697 | imrc->get_min_page_size = spapr_tce_get_min_page_size; |
| 698 | imrc->notify_flag_changed = spapr_tce_notify_flag_changed; |
Alexey Kardashevskiy | 9ded780 | 2018-02-06 11:08:24 -0700 | [diff] [blame] | 699 | imrc->get_attr = spapr_tce_get_attr; |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 700 | } |
| 701 | |
| 702 | static const TypeInfo spapr_iommu_memory_region_info = { |
| 703 | .parent = TYPE_IOMMU_MEMORY_REGION, |
| 704 | .name = TYPE_SPAPR_IOMMU_MEMORY_REGION, |
| 705 | .class_init = spapr_iommu_memory_region_class_init, |
| 706 | }; |
| 707 | |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 708 | static void register_types(void) |
| 709 | { |
| 710 | type_register_static(&spapr_tce_table_info); |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 711 | type_register_static(&spapr_iommu_memory_region_info); |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 712 | } |
| 713 | |
| 714 | type_init(register_types); |