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 |
| 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 |
| 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 | 7e47226 | 2013-08-29 18:05:00 +1000 | [diff] [blame] | 139 | trace_spapr_iommu_xlate(tcet->liobn, addr, ret.iova, ret.perm, |
| 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 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 208 | static void spapr_tce_notify_flag_changed(IOMMUMemoryRegion *iommu, |
Peter Xu | 5bf3d31 | 2016-09-23 13:02:27 +0800 | [diff] [blame] | 209 | IOMMUNotifierFlag old, |
| 210 | IOMMUNotifierFlag new) |
Alexey Kardashevskiy | 606b549 | 2016-07-04 13:33:03 +1000 | [diff] [blame] | 211 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 212 | struct SpaprTceTable *tbl = container_of(iommu, SpaprTceTable, iommu); |
Alexey Kardashevskiy | 606b549 | 2016-07-04 13:33:03 +1000 | [diff] [blame] | 213 | |
Peter Xu | 5bf3d31 | 2016-09-23 13:02:27 +0800 | [diff] [blame] | 214 | if (old == IOMMU_NOTIFIER_NONE && new != IOMMU_NOTIFIER_NONE) { |
| 215 | spapr_tce_set_need_vfio(tbl, true); |
| 216 | } else if (old != IOMMU_NOTIFIER_NONE && new == IOMMU_NOTIFIER_NONE) { |
| 217 | spapr_tce_set_need_vfio(tbl, false); |
| 218 | } |
Alexey Kardashevskiy | 606b549 | 2016-07-04 13:33:03 +1000 | [diff] [blame] | 219 | } |
| 220 | |
Alexey Kardashevskiy | ee9a569 | 2015-01-29 16:04:58 +1100 | [diff] [blame] | 221 | static int spapr_tce_table_post_load(void *opaque, int version_id) |
| 222 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 223 | SpaprTceTable *tcet = SPAPR_TCE_TABLE(opaque); |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 224 | uint32_t old_nb_table = tcet->nb_table; |
| 225 | uint64_t old_bus_offset = tcet->bus_offset; |
| 226 | uint32_t old_page_shift = tcet->page_shift; |
Alexey Kardashevskiy | ee9a569 | 2015-01-29 16:04:58 +1100 | [diff] [blame] | 227 | |
| 228 | if (tcet->vdev) { |
| 229 | spapr_vio_set_bypass(tcet->vdev, tcet->bypass); |
| 230 | } |
| 231 | |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 232 | if (tcet->mig_nb_table != tcet->nb_table) { |
| 233 | spapr_tce_table_disable(tcet); |
| 234 | } |
| 235 | |
| 236 | if (tcet->mig_nb_table) { |
| 237 | if (!tcet->nb_table) { |
| 238 | spapr_tce_table_enable(tcet, old_page_shift, old_bus_offset, |
| 239 | tcet->mig_nb_table); |
| 240 | } |
| 241 | |
| 242 | memcpy(tcet->table, tcet->mig_table, |
| 243 | tcet->nb_table * sizeof(tcet->table[0])); |
| 244 | |
| 245 | free(tcet->mig_table); |
| 246 | tcet->mig_table = NULL; |
| 247 | } |
| 248 | |
| 249 | trace_spapr_iommu_post_load(tcet->liobn, old_nb_table, tcet->nb_table, |
| 250 | tcet->bus_offset, tcet->page_shift); |
| 251 | |
Alexey Kardashevskiy | ee9a569 | 2015-01-29 16:04:58 +1100 | [diff] [blame] | 252 | return 0; |
| 253 | } |
| 254 | |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 255 | static bool spapr_tce_table_ex_needed(void *opaque) |
| 256 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 257 | SpaprTceTable *tcet = opaque; |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 258 | |
| 259 | return tcet->bus_offset || tcet->page_shift != 0xC; |
| 260 | } |
| 261 | |
| 262 | static const VMStateDescription vmstate_spapr_tce_table_ex = { |
| 263 | .name = "spapr_iommu_ex", |
| 264 | .version_id = 1, |
| 265 | .minimum_version_id = 1, |
| 266 | .needed = spapr_tce_table_ex_needed, |
| 267 | .fields = (VMStateField[]) { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 268 | VMSTATE_UINT64(bus_offset, SpaprTceTable), |
| 269 | VMSTATE_UINT32(page_shift, SpaprTceTable), |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 270 | VMSTATE_END_OF_LIST() |
| 271 | }, |
| 272 | }; |
| 273 | |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 274 | static const VMStateDescription vmstate_spapr_tce_table = { |
| 275 | .name = "spapr_iommu", |
Alexey Kardashevskiy | 523e7b8 | 2014-05-27 15:36:35 +1000 | [diff] [blame] | 276 | .version_id = 2, |
| 277 | .minimum_version_id = 2, |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 278 | .pre_save = spapr_tce_table_pre_save, |
Alexey Kardashevskiy | ee9a569 | 2015-01-29 16:04:58 +1100 | [diff] [blame] | 279 | .post_load = spapr_tce_table_post_load, |
Alexey Kardashevskiy | 523e7b8 | 2014-05-27 15:36:35 +1000 | [diff] [blame] | 280 | .fields = (VMStateField []) { |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 281 | /* Sanity check */ |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 282 | VMSTATE_UINT32_EQUAL(liobn, SpaprTceTable, NULL), |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 283 | |
| 284 | /* IOMMU state */ |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 285 | VMSTATE_UINT32(mig_nb_table, SpaprTceTable), |
| 286 | VMSTATE_BOOL(bypass, SpaprTceTable), |
| 287 | VMSTATE_VARRAY_UINT32_ALLOC(mig_table, SpaprTceTable, mig_nb_table, 0, |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 288 | vmstate_info_uint64, uint64_t), |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 289 | |
| 290 | VMSTATE_END_OF_LIST() |
| 291 | }, |
Alexey Kardashevskiy | a26fdf3 | 2016-06-01 18:57:34 +1000 | [diff] [blame] | 292 | .subsections = (const VMStateDescription*[]) { |
| 293 | &vmstate_spapr_tce_table_ex, |
| 294 | NULL |
| 295 | } |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 296 | }; |
| 297 | |
Greg Kurz | a931ad1 | 2017-07-25 19:59:06 +0200 | [diff] [blame] | 298 | static void spapr_tce_table_realize(DeviceState *dev, Error **errp) |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 299 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 300 | SpaprTceTable *tcet = SPAPR_TCE_TABLE(dev); |
Alexey Kardashevskiy | b4b6eb7 | 2016-06-01 18:57:35 +1000 | [diff] [blame] | 301 | Object *tcetobj = OBJECT(tcet); |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 302 | gchar *tmp; |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 303 | |
Alexey Kardashevskiy | fec5d3a | 2016-05-04 16:52:19 +1000 | [diff] [blame] | 304 | tcet->fd = -1; |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 305 | tcet->need_vfio = false; |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 306 | tmp = g_strdup_printf("tce-root-%x", tcet->liobn); |
Alexey Kardashevskiy | b4b6eb7 | 2016-06-01 18:57:35 +1000 | [diff] [blame] | 307 | memory_region_init(&tcet->root, tcetobj, tmp, UINT64_MAX); |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 308 | g_free(tmp); |
Alexey Kardashevskiy | b4b6eb7 | 2016-06-01 18:57:35 +1000 | [diff] [blame] | 309 | |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 310 | tmp = g_strdup_printf("tce-iommu-%x", tcet->liobn); |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 311 | memory_region_init_iommu(&tcet->iommu, sizeof(tcet->iommu), |
| 312 | TYPE_SPAPR_IOMMU_MEMORY_REGION, |
| 313 | tcetobj, tmp, 0); |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 314 | g_free(tmp); |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 315 | |
| 316 | QLIST_INSERT_HEAD(&spapr_tce_tables, tcet, list); |
| 317 | |
Alexey Kardashevskiy | 00d4f52 | 2014-05-12 18:46:32 +1000 | [diff] [blame] | 318 | vmstate_register(DEVICE(tcet), tcet->liobn, &vmstate_spapr_tce_table, |
| 319 | tcet); |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 320 | } |
| 321 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 322 | void spapr_tce_set_need_vfio(SpaprTceTable *tcet, bool need_vfio) |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 323 | { |
| 324 | size_t table_size = tcet->nb_table * sizeof(uint64_t); |
Alexey Kardashevskiy | f5509b6 | 2017-07-20 17:22:29 +1000 | [diff] [blame] | 325 | uint64_t *oldtable; |
| 326 | int newfd = -1; |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 327 | |
Alexey Kardashevskiy | f5509b6 | 2017-07-20 17:22:29 +1000 | [diff] [blame] | 328 | g_assert(need_vfio != tcet->need_vfio); |
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 | tcet->need_vfio = need_vfio; |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 331 | |
Alexey Kardashevskiy | 9ded780 | 2018-02-06 11:08:24 -0700 | [diff] [blame] | 332 | if (!need_vfio || (tcet->fd != -1 && kvmppc_has_cap_spapr_vfio())) { |
| 333 | return; |
| 334 | } |
| 335 | |
Alexey Kardashevskiy | f5509b6 | 2017-07-20 17:22:29 +1000 | [diff] [blame] | 336 | oldtable = tcet->table; |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 337 | |
Alexey Kardashevskiy | f5509b6 | 2017-07-20 17:22:29 +1000 | [diff] [blame] | 338 | tcet->table = spapr_tce_alloc_table(tcet->liobn, |
| 339 | tcet->page_shift, |
| 340 | tcet->bus_offset, |
| 341 | tcet->nb_table, |
| 342 | &newfd, |
| 343 | need_vfio); |
| 344 | memcpy(tcet->table, oldtable, table_size); |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 345 | |
Alexey Kardashevskiy | f5509b6 | 2017-07-20 17:22:29 +1000 | [diff] [blame] | 346 | spapr_tce_free_table(oldtable, tcet->fd, tcet->nb_table); |
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 | tcet->fd = newfd; |
David Gibson | c10325d | 2015-10-01 10:46:10 +1000 | [diff] [blame] | 349 | } |
| 350 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 351 | SpaprTceTable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn) |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 352 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 353 | SpaprTceTable *tcet; |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 354 | gchar *tmp; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 355 | |
David Gibson | 8b1853e | 2012-12-03 16:42:13 +0000 | [diff] [blame] | 356 | if (spapr_tce_find_by_liobn(liobn)) { |
Cédric Le Goater | ce9863b | 2016-08-02 19:38:00 +0200 | [diff] [blame] | 357 | error_report("Attempted to create TCE table with duplicate" |
| 358 | " LIOBN 0x%x", liobn); |
David Gibson | 8b1853e | 2012-12-03 16:42:13 +0000 | [diff] [blame] | 359 | return NULL; |
| 360 | } |
| 361 | |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 362 | tcet = SPAPR_TCE_TABLE(object_new(TYPE_SPAPR_TCE_TABLE)); |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 363 | tcet->liobn = liobn; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 364 | |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 365 | tmp = g_strdup_printf("tce-table-%x", liobn); |
Alexey Kardashevskiy | dea1b3c | 2015-05-07 15:33:37 +1000 | [diff] [blame] | 366 | object_property_add_child(OBJECT(owner), tmp, OBJECT(tcet), NULL); |
Greg Kurz | a205a05 | 2017-07-25 19:58:40 +0200 | [diff] [blame] | 367 | g_free(tmp); |
Michael Roth | 8dc9785 | 2017-07-25 20:00:09 +0200 | [diff] [blame] | 368 | object_unref(OBJECT(tcet)); |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 369 | |
Alexey Kardashevskiy | e4c35b7 | 2014-05-27 15:36:34 +1000 | [diff] [blame] | 370 | object_property_set_bool(OBJECT(tcet), true, "realized", NULL); |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 371 | |
Paolo Bonzini | 2b7dc94 | 2013-04-10 17:30:48 +0200 | [diff] [blame] | 372 | return tcet; |
| 373 | } |
| 374 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 375 | void spapr_tce_table_enable(SpaprTceTable *tcet, |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 376 | uint32_t page_shift, uint64_t bus_offset, |
| 377 | uint32_t nb_table) |
| 378 | { |
| 379 | if (tcet->nb_table) { |
Alistair Francis | 3dc6f86 | 2017-07-12 06:57:41 -0700 | [diff] [blame] | 380 | warn_report("trying to enable already enabled TCE table"); |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 381 | return; |
| 382 | } |
| 383 | |
| 384 | tcet->bus_offset = bus_offset; |
| 385 | tcet->page_shift = page_shift; |
| 386 | tcet->nb_table = nb_table; |
| 387 | tcet->table = spapr_tce_alloc_table(tcet->liobn, |
| 388 | tcet->page_shift, |
Alexey Kardashevskiy | d6ee2a7 | 2017-03-10 12:41:13 +1100 | [diff] [blame] | 389 | tcet->bus_offset, |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 390 | tcet->nb_table, |
| 391 | &tcet->fd, |
| 392 | tcet->need_vfio); |
| 393 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 394 | memory_region_set_size(MEMORY_REGION(&tcet->iommu), |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 395 | (uint64_t)tcet->nb_table << tcet->page_shift); |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 396 | memory_region_add_subregion(&tcet->root, tcet->bus_offset, |
| 397 | MEMORY_REGION(&tcet->iommu)); |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 398 | } |
| 399 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 400 | void spapr_tce_table_disable(SpaprTceTable *tcet) |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 401 | { |
| 402 | if (!tcet->nb_table) { |
| 403 | return; |
| 404 | } |
| 405 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 406 | memory_region_del_subregion(&tcet->root, MEMORY_REGION(&tcet->iommu)); |
| 407 | memory_region_set_size(MEMORY_REGION(&tcet->iommu), 0); |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 408 | |
| 409 | spapr_tce_free_table(tcet->table, tcet->fd, tcet->nb_table); |
| 410 | tcet->fd = -1; |
| 411 | tcet->table = NULL; |
| 412 | tcet->bus_offset = 0; |
| 413 | tcet->page_shift = 0; |
| 414 | tcet->nb_table = 0; |
| 415 | } |
| 416 | |
David Gibson | 5f9490d | 2014-12-08 13:48:02 +1100 | [diff] [blame] | 417 | static void spapr_tce_table_unrealize(DeviceState *dev, Error **errp) |
Paolo Bonzini | 2b7dc94 | 2013-04-10 17:30:48 +0200 | [diff] [blame] | 418 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 419 | SpaprTceTable *tcet = SPAPR_TCE_TABLE(dev); |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 420 | |
Greg Kurz | ea359d2 | 2017-07-25 20:00:22 +0200 | [diff] [blame] | 421 | vmstate_unregister(DEVICE(tcet), &vmstate_spapr_tce_table, tcet); |
| 422 | |
Paolo Bonzini | 2b7dc94 | 2013-04-10 17:30:48 +0200 | [diff] [blame] | 423 | QLIST_REMOVE(tcet, list); |
| 424 | |
Alexey Kardashevskiy | df7625d | 2016-06-01 18:57:33 +1000 | [diff] [blame] | 425 | spapr_tce_table_disable(tcet); |
Paolo Bonzini | 2b7dc94 | 2013-04-10 17:30:48 +0200 | [diff] [blame] | 426 | } |
| 427 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 428 | MemoryRegion *spapr_tce_get_iommu(SpaprTceTable *tcet) |
Paolo Bonzini | a84bb43 | 2013-04-11 12:35:33 +0200 | [diff] [blame] | 429 | { |
Alexey Kardashevskiy | b4b6eb7 | 2016-06-01 18:57:35 +1000 | [diff] [blame] | 430 | return &tcet->root; |
Paolo Bonzini | a84bb43 | 2013-04-11 12:35:33 +0200 | [diff] [blame] | 431 | } |
| 432 | |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 433 | static void spapr_tce_reset(DeviceState *dev) |
David Gibson | eddeed2 | 2012-09-12 16:57:14 +0000 | [diff] [blame] | 434 | { |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 435 | SpaprTceTable *tcet = SPAPR_TCE_TABLE(dev); |
Alexey Kardashevskiy | 523e7b8 | 2014-05-27 15:36:35 +1000 | [diff] [blame] | 436 | size_t table_size = tcet->nb_table * sizeof(uint64_t); |
David Gibson | eddeed2 | 2012-09-12 16:57:14 +0000 | [diff] [blame] | 437 | |
David Gibson | 57c0eb1 | 2016-08-08 10:06:25 +1000 | [diff] [blame] | 438 | if (tcet->nb_table) { |
| 439 | memset(tcet->table, 0, table_size); |
| 440 | } |
David Gibson | eddeed2 | 2012-09-12 16:57:14 +0000 | [diff] [blame] | 441 | } |
| 442 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 443 | static target_ulong put_tce_emu(SpaprTceTable *tcet, target_ulong ioba, |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 444 | target_ulong tce) |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 445 | { |
Paolo Bonzini | a84bb43 | 2013-04-11 12:35:33 +0200 | [diff] [blame] | 446 | IOMMUTLBEntry entry; |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 447 | hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); |
Alexey Kardashevskiy | 1b8ecee | 2014-05-27 15:36:37 +1000 | [diff] [blame] | 448 | unsigned long index = (ioba - tcet->bus_offset) >> tcet->page_shift; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 449 | |
Alexey Kardashevskiy | 1b8ecee | 2014-05-27 15:36:37 +1000 | [diff] [blame] | 450 | if (index >= tcet->nb_table) { |
David Gibson | b55519a | 2013-04-29 18:33:52 +0000 | [diff] [blame] | 451 | hcall_dprintf("spapr_vio_put_tce on out-of-bounds IOBA 0x" |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 452 | TARGET_FMT_lx "\n", ioba); |
| 453 | return H_PARAMETER; |
| 454 | } |
| 455 | |
Alexey Kardashevskiy | 1b8ecee | 2014-05-27 15:36:37 +1000 | [diff] [blame] | 456 | tcet->table[index] = tce; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 457 | |
Paolo Bonzini | a84bb43 | 2013-04-11 12:35:33 +0200 | [diff] [blame] | 458 | entry.target_as = &address_space_memory, |
Alexey Kardashevskiy | d78c19b | 2016-05-26 09:43:23 -0600 | [diff] [blame] | 459 | entry.iova = (ioba - tcet->bus_offset) & page_mask; |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 460 | entry.translated_addr = tce & page_mask; |
| 461 | entry.addr_mask = ~page_mask; |
Greg Kurz | 5709af3 | 2015-07-02 16:23:12 +1000 | [diff] [blame] | 462 | entry.perm = spapr_tce_iommu_access_flags(tce); |
Peter Maydell | cb1efcf | 2018-06-15 14:57:16 +0100 | [diff] [blame] | 463 | memory_region_notify_iommu(&tcet->iommu, 0, entry); |
Paolo Bonzini | a84bb43 | 2013-04-11 12:35:33 +0200 | [diff] [blame] | 464 | |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 465 | return H_SUCCESS; |
| 466 | } |
| 467 | |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 468 | static target_ulong h_put_tce_indirect(PowerPCCPU *cpu, |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 469 | SpaprMachineState *spapr, |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 470 | target_ulong opcode, target_ulong *args) |
| 471 | { |
| 472 | int i; |
| 473 | target_ulong liobn = args[0]; |
| 474 | target_ulong ioba = args[1]; |
| 475 | target_ulong ioba1 = ioba; |
| 476 | target_ulong tce_list = args[2]; |
| 477 | target_ulong npages = args[3]; |
Alexey Kardashevskiy | f1215ea | 2015-05-07 15:33:29 +1000 | [diff] [blame] | 478 | target_ulong ret = H_PARAMETER, tce = 0; |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 479 | SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 480 | CPUState *cs = CPU(cpu); |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 481 | hwaddr page_mask, page_size; |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 482 | |
| 483 | if (!tcet) { |
| 484 | return H_PARAMETER; |
| 485 | } |
| 486 | |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 487 | if ((npages > 512) || (tce_list & SPAPR_TCE_PAGE_MASK)) { |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 488 | return H_PARAMETER; |
| 489 | } |
| 490 | |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 491 | page_mask = IOMMU_PAGE_MASK(tcet->page_shift); |
| 492 | page_size = IOMMU_PAGE_SIZE(tcet->page_shift); |
| 493 | ioba &= page_mask; |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 494 | |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 495 | for (i = 0; i < npages; ++i, ioba += page_size) { |
Greg Kurz | 4d9ab7d | 2015-07-02 16:23:11 +1000 | [diff] [blame] | 496 | tce = ldq_be_phys(cs->as, tce_list + i * sizeof(target_ulong)); |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 497 | |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 498 | ret = put_tce_emu(tcet, ioba, tce); |
| 499 | if (ret) { |
| 500 | break; |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | /* Trace last successful or the first problematic entry */ |
| 505 | i = i ? (i - 1) : 0; |
Alexey Kardashevskiy | d9d96a3 | 2015-05-07 15:33:33 +1000 | [diff] [blame] | 506 | if (SPAPR_IS_PCI_LIOBN(liobn)) { |
| 507 | trace_spapr_iommu_pci_indirect(liobn, ioba1, tce_list, i, tce, ret); |
| 508 | } else { |
| 509 | trace_spapr_iommu_indirect(liobn, ioba1, tce_list, i, tce, ret); |
| 510 | } |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 511 | return ret; |
| 512 | } |
| 513 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 514 | static target_ulong h_stuff_tce(PowerPCCPU *cpu, SpaprMachineState *spapr, |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 515 | target_ulong opcode, target_ulong *args) |
| 516 | { |
| 517 | int i; |
| 518 | target_ulong liobn = args[0]; |
| 519 | target_ulong ioba = args[1]; |
| 520 | target_ulong tce_value = args[2]; |
| 521 | target_ulong npages = args[3]; |
| 522 | target_ulong ret = H_PARAMETER; |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 523 | SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 524 | hwaddr page_mask, page_size; |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 525 | |
| 526 | if (!tcet) { |
| 527 | return H_PARAMETER; |
| 528 | } |
| 529 | |
| 530 | if (npages > tcet->nb_table) { |
| 531 | return H_PARAMETER; |
| 532 | } |
| 533 | |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 534 | page_mask = IOMMU_PAGE_MASK(tcet->page_shift); |
| 535 | page_size = IOMMU_PAGE_SIZE(tcet->page_shift); |
| 536 | ioba &= page_mask; |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 537 | |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 538 | for (i = 0; i < npages; ++i, ioba += page_size) { |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 539 | ret = put_tce_emu(tcet, ioba, tce_value); |
| 540 | if (ret) { |
| 541 | break; |
| 542 | } |
| 543 | } |
Alexey Kardashevskiy | d9d96a3 | 2015-05-07 15:33:33 +1000 | [diff] [blame] | 544 | if (SPAPR_IS_PCI_LIOBN(liobn)) { |
| 545 | trace_spapr_iommu_pci_stuff(liobn, ioba, tce_value, npages, ret); |
| 546 | } else { |
| 547 | trace_spapr_iommu_stuff(liobn, ioba, tce_value, npages, ret); |
| 548 | } |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 549 | |
| 550 | return ret; |
| 551 | } |
| 552 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 553 | static target_ulong h_put_tce(PowerPCCPU *cpu, SpaprMachineState *spapr, |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 554 | target_ulong opcode, target_ulong *args) |
| 555 | { |
| 556 | target_ulong liobn = args[0]; |
| 557 | target_ulong ioba = args[1]; |
| 558 | target_ulong tce = args[2]; |
Alexey Kardashevskiy | 7e47226 | 2013-08-29 18:05:00 +1000 | [diff] [blame] | 559 | target_ulong ret = H_PARAMETER; |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 560 | SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 561 | |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 562 | if (tcet) { |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 563 | hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); |
| 564 | |
| 565 | ioba &= page_mask; |
| 566 | |
Alexey Kardashevskiy | 7e47226 | 2013-08-29 18:05:00 +1000 | [diff] [blame] | 567 | ret = put_tce_emu(tcet, ioba, tce); |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 568 | } |
Alexey Kardashevskiy | d9d96a3 | 2015-05-07 15:33:33 +1000 | [diff] [blame] | 569 | if (SPAPR_IS_PCI_LIOBN(liobn)) { |
| 570 | trace_spapr_iommu_pci_put(liobn, ioba, tce, ret); |
| 571 | } else { |
| 572 | trace_spapr_iommu_put(liobn, ioba, tce, ret); |
| 573 | } |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 574 | |
Alexey Kardashevskiy | 7e47226 | 2013-08-29 18:05:00 +1000 | [diff] [blame] | 575 | return ret; |
David Gibson | edded45 | 2012-06-27 14:50:46 +1000 | [diff] [blame] | 576 | } |
| 577 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 578 | static target_ulong get_tce_emu(SpaprTceTable *tcet, target_ulong ioba, |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 579 | target_ulong *tce) |
| 580 | { |
Alexey Kardashevskiy | 1b8ecee | 2014-05-27 15:36:37 +1000 | [diff] [blame] | 581 | unsigned long index = (ioba - tcet->bus_offset) >> tcet->page_shift; |
| 582 | |
| 583 | if (index >= tcet->nb_table) { |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 584 | hcall_dprintf("spapr_iommu_get_tce on out-of-bounds IOBA 0x" |
| 585 | TARGET_FMT_lx "\n", ioba); |
| 586 | return H_PARAMETER; |
| 587 | } |
| 588 | |
Alexey Kardashevskiy | 1b8ecee | 2014-05-27 15:36:37 +1000 | [diff] [blame] | 589 | *tce = tcet->table[index]; |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 590 | |
| 591 | return H_SUCCESS; |
| 592 | } |
| 593 | |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 594 | static target_ulong h_get_tce(PowerPCCPU *cpu, SpaprMachineState *spapr, |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 595 | target_ulong opcode, target_ulong *args) |
| 596 | { |
| 597 | target_ulong liobn = args[0]; |
| 598 | target_ulong ioba = args[1]; |
| 599 | target_ulong tce = 0; |
| 600 | target_ulong ret = H_PARAMETER; |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 601 | SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 602 | |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 603 | if (tcet) { |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 604 | hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); |
| 605 | |
| 606 | ioba &= page_mask; |
| 607 | |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 608 | ret = get_tce_emu(tcet, ioba, &tce); |
| 609 | if (!ret) { |
| 610 | args[0] = tce; |
| 611 | } |
| 612 | } |
Alexey Kardashevskiy | d9d96a3 | 2015-05-07 15:33:33 +1000 | [diff] [blame] | 613 | if (SPAPR_IS_PCI_LIOBN(liobn)) { |
| 614 | trace_spapr_iommu_pci_get(liobn, ioba, ret, tce); |
| 615 | } else { |
| 616 | trace_spapr_iommu_get(liobn, ioba, ret, tce); |
| 617 | } |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 618 | |
| 619 | return ret; |
| 620 | } |
| 621 | |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 622 | int spapr_dma_dt(void *fdt, int node_off, const char *propname, |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 623 | uint32_t liobn, uint64_t window, uint32_t size) |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 624 | { |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 625 | uint32_t dma_prop[5]; |
| 626 | int ret; |
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 | dma_prop[0] = cpu_to_be32(liobn); |
| 629 | dma_prop[1] = cpu_to_be32(window >> 32); |
| 630 | dma_prop[2] = cpu_to_be32(window & 0xFFFFFFFF); |
| 631 | dma_prop[3] = 0; /* window size is 32 bits */ |
| 632 | dma_prop[4] = cpu_to_be32(size); |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 633 | |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 634 | ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-address-cells", 2); |
| 635 | if (ret < 0) { |
| 636 | return ret; |
| 637 | } |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 638 | |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 639 | ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-size-cells", 2); |
| 640 | if (ret < 0) { |
| 641 | return ret; |
| 642 | } |
| 643 | |
| 644 | ret = fdt_setprop(fdt, node_off, propname, dma_prop, sizeof(dma_prop)); |
| 645 | if (ret < 0) { |
| 646 | return ret; |
David Gibson | ad0ebb9 | 2012-06-27 14:50:44 +1000 | [diff] [blame] | 647 | } |
| 648 | |
| 649 | return 0; |
| 650 | } |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 651 | |
| 652 | 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] | 653 | SpaprTceTable *tcet) |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 654 | { |
Paolo Bonzini | 2b7dc94 | 2013-04-10 17:30:48 +0200 | [diff] [blame] | 655 | if (!tcet) { |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 656 | return 0; |
| 657 | } |
| 658 | |
Paolo Bonzini | 2b7dc94 | 2013-04-10 17:30:48 +0200 | [diff] [blame] | 659 | return spapr_dma_dt(fdt, node_off, propname, |
Alexey Kardashevskiy | 650f33a | 2014-05-27 15:36:36 +1000 | [diff] [blame] | 660 | tcet->liobn, 0, tcet->nb_table << tcet->page_shift); |
Alexey Kardashevskiy | 5c4cbcf | 2012-08-07 16:10:38 +0000 | [diff] [blame] | 661 | } |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 662 | |
| 663 | static void spapr_tce_table_class_init(ObjectClass *klass, void *data) |
| 664 | { |
| 665 | DeviceClass *dc = DEVICE_CLASS(klass); |
Greg Kurz | a931ad1 | 2017-07-25 19:59:06 +0200 | [diff] [blame] | 666 | dc->realize = spapr_tce_table_realize; |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 667 | dc->reset = spapr_tce_reset; |
David Gibson | 5f9490d | 2014-12-08 13:48:02 +1100 | [diff] [blame] | 668 | dc->unrealize = spapr_tce_table_unrealize; |
Thomas Huth | 1f98e55 | 2017-08-17 16:19:16 +0200 | [diff] [blame] | 669 | /* Reason: This is just an internal device for handling the hypercalls */ |
| 670 | dc->user_creatable = false; |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 671 | |
| 672 | QLIST_INIT(&spapr_tce_tables); |
| 673 | |
| 674 | /* hcall-tce */ |
| 675 | spapr_register_hypercall(H_PUT_TCE, h_put_tce); |
Laurent Dufour | a0fcac9 | 2014-02-21 10:29:06 +0100 | [diff] [blame] | 676 | spapr_register_hypercall(H_GET_TCE, h_get_tce); |
Alexey Kardashevskiy | da95324 | 2014-05-27 15:36:30 +1000 | [diff] [blame] | 677 | spapr_register_hypercall(H_PUT_TCE_INDIRECT, h_put_tce_indirect); |
| 678 | spapr_register_hypercall(H_STUFF_TCE, h_stuff_tce); |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 679 | } |
| 680 | |
| 681 | static TypeInfo spapr_tce_table_info = { |
| 682 | .name = TYPE_SPAPR_TCE_TABLE, |
| 683 | .parent = TYPE_DEVICE, |
David Gibson | ce2918c | 2019-03-06 15:35:37 +1100 | [diff] [blame] | 684 | .instance_size = sizeof(SpaprTceTable), |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 685 | .class_init = spapr_tce_table_class_init, |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 686 | }; |
| 687 | |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 688 | static void spapr_iommu_memory_region_class_init(ObjectClass *klass, void *data) |
| 689 | { |
| 690 | IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass); |
| 691 | |
| 692 | imrc->translate = spapr_tce_translate_iommu; |
Alexey Kardashevskiy | 5f36666 | 2019-03-07 16:05:16 +1100 | [diff] [blame] | 693 | imrc->replay = spapr_tce_replay; |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 694 | imrc->get_min_page_size = spapr_tce_get_min_page_size; |
| 695 | imrc->notify_flag_changed = spapr_tce_notify_flag_changed; |
Alexey Kardashevskiy | 9ded780 | 2018-02-06 11:08:24 -0700 | [diff] [blame] | 696 | imrc->get_attr = spapr_tce_get_attr; |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 697 | } |
| 698 | |
| 699 | static const TypeInfo spapr_iommu_memory_region_info = { |
| 700 | .parent = TYPE_IOMMU_MEMORY_REGION, |
| 701 | .name = TYPE_SPAPR_IOMMU_MEMORY_REGION, |
| 702 | .class_init = spapr_iommu_memory_region_class_init, |
| 703 | }; |
| 704 | |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 705 | static void register_types(void) |
| 706 | { |
| 707 | type_register_static(&spapr_tce_table_info); |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 708 | type_register_static(&spapr_iommu_memory_region_info); |
Anthony Liguori | a83000f | 2013-07-18 14:32:58 -0500 | [diff] [blame] | 709 | } |
| 710 | |
| 711 | type_init(register_types); |