efimemory.c revision 1.2.2.3
1 1.2.2.3 skrll /* $NetBSD: efimemory.c,v 1.2.2.3 2017/08/28 17:51:41 skrll Exp $ */ 2 1.2.2.2 skrll 3 1.2.2.2 skrll /*- 4 1.2.2.2 skrll * Copyright (c) 2016 Kimihiro Nonaka <nonaka (at) netbsd.org> 5 1.2.2.2 skrll * All rights reserved. 6 1.2.2.2 skrll * 7 1.2.2.2 skrll * Redistribution and use in source and binary forms, with or without 8 1.2.2.2 skrll * modification, are permitted provided that the following conditions 9 1.2.2.2 skrll * are met: 10 1.2.2.2 skrll * 1. Redistributions of source code must retain the above copyright 11 1.2.2.2 skrll * notice, this list of conditions and the following disclaimer. 12 1.2.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 13 1.2.2.2 skrll * notice, this list of conditions and the following disclaimer in the 14 1.2.2.2 skrll * documentation and/or other materials provided with the distribution. 15 1.2.2.2 skrll * 16 1.2.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17 1.2.2.2 skrll * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 1.2.2.2 skrll * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 1.2.2.2 skrll * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20 1.2.2.2 skrll * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 1.2.2.2 skrll * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 1.2.2.2 skrll * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 1.2.2.2 skrll * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 1.2.2.2 skrll * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.2.2.2 skrll * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.2.2.2 skrll * SUCH DAMAGE. 27 1.2.2.2 skrll */ 28 1.2.2.2 skrll 29 1.2.2.2 skrll #include "efiboot.h" 30 1.2.2.2 skrll 31 1.2.2.2 skrll #include <bootinfo.h> 32 1.2.2.2 skrll 33 1.2.2.2 skrll static const char *memtypes[] = { 34 1.2.2.2 skrll "unknown", 35 1.2.2.2 skrll "available", 36 1.2.2.2 skrll "reserved", 37 1.2.2.2 skrll "ACPI reclaimable", 38 1.2.2.3 skrll "ACPI NVS", 39 1.2.2.3 skrll "unusable", 40 1.2.2.3 skrll "disabled", 41 1.2.2.3 skrll "Persistent", 42 1.2.2.3 skrll "undefined (8)", 43 1.2.2.3 skrll "undefined (9)", 44 1.2.2.3 skrll "undefined (10)", 45 1.2.2.3 skrll "undefined (11)", 46 1.2.2.3 skrll "Persistent (Legacy)" 47 1.2.2.2 skrll }; 48 1.2.2.2 skrll 49 1.2.2.2 skrll static const char *efimemtypes[] = { 50 1.2.2.2 skrll "Reserved", 51 1.2.2.2 skrll "LoaderCode", 52 1.2.2.2 skrll "LoaderData", 53 1.2.2.2 skrll "BootServicesCode", 54 1.2.2.2 skrll "BootServicesData", 55 1.2.2.2 skrll "RuntimeServicesCode", 56 1.2.2.2 skrll "RuntimeServicesData", 57 1.2.2.2 skrll "ConventionalMemory", 58 1.2.2.2 skrll "UnusableMemory", 59 1.2.2.2 skrll "ACPIReclaimMemory", 60 1.2.2.2 skrll "ACPIMemoryNVS", 61 1.2.2.2 skrll "MemoryMappedIO", 62 1.2.2.2 skrll "MemoryMappedIOPortSpace", 63 1.2.2.2 skrll "PalCode", 64 1.2.2.3 skrll "PersistentMemory", 65 1.2.2.2 skrll }; 66 1.2.2.2 skrll 67 1.2.2.2 skrll static int 68 1.2.2.2 skrll getmemtype(EFI_MEMORY_DESCRIPTOR *md) 69 1.2.2.2 skrll { 70 1.2.2.2 skrll 71 1.2.2.2 skrll switch (md->Type) { 72 1.2.2.2 skrll case EfiLoaderCode: 73 1.2.2.2 skrll case EfiLoaderData: 74 1.2.2.2 skrll case EfiBootServicesCode: 75 1.2.2.2 skrll case EfiBootServicesData: 76 1.2.2.2 skrll case EfiConventionalMemory: 77 1.2.2.2 skrll return (md->Attribute & EFI_MEMORY_WB) ? 78 1.2.2.2 skrll BIM_Memory : BIM_Reserved; 79 1.2.2.2 skrll 80 1.2.2.2 skrll case EfiACPIReclaimMemory: 81 1.2.2.2 skrll return BIM_ACPI; 82 1.2.2.2 skrll 83 1.2.2.2 skrll case EfiACPIMemoryNVS: 84 1.2.2.2 skrll return BIM_NVS; 85 1.2.2.2 skrll 86 1.2.2.3 skrll case EfiPersistentMemory: 87 1.2.2.3 skrll return BIM_PMEM; 88 1.2.2.3 skrll 89 1.2.2.2 skrll case EfiReservedMemoryType: 90 1.2.2.2 skrll case EfiRuntimeServicesCode: 91 1.2.2.2 skrll case EfiRuntimeServicesData: 92 1.2.2.2 skrll case EfiUnusableMemory: 93 1.2.2.2 skrll case EfiMemoryMappedIO: 94 1.2.2.2 skrll case EfiMemoryMappedIOPortSpace: 95 1.2.2.2 skrll case EfiPalCode: 96 1.2.2.2 skrll case EfiMaxMemoryType: 97 1.2.2.3 skrll default: 98 1.2.2.2 skrll return BIM_Reserved; 99 1.2.2.2 skrll } 100 1.2.2.2 skrll } 101 1.2.2.2 skrll 102 1.2.2.3 skrll EFI_MEMORY_DESCRIPTOR * 103 1.2.2.3 skrll efi_memory_get_map(UINTN *NoEntries, UINTN *MapKey, UINTN *DescriptorSize, 104 1.2.2.3 skrll UINT32 *DescriptorVersion, bool sorted) 105 1.2.2.2 skrll { 106 1.2.2.2 skrll EFI_MEMORY_DESCRIPTOR *desc, *md, *next, *target, tmp; 107 1.2.2.2 skrll UINTN i, j; 108 1.2.2.2 skrll 109 1.2.2.2 skrll *NoEntries = 0; 110 1.2.2.2 skrll desc = LibMemoryMap(NoEntries, MapKey, DescriptorSize, 111 1.2.2.2 skrll DescriptorVersion); 112 1.2.2.2 skrll if (desc == NULL) 113 1.2.2.3 skrll Panic(L"efi_memory_get_map failed"); 114 1.2.2.2 skrll 115 1.2.2.2 skrll if (!sorted) 116 1.2.2.2 skrll return desc; 117 1.2.2.2 skrll 118 1.2.2.2 skrll for (i = 0, md = desc; i < *NoEntries - 1; i++, md = next) { 119 1.2.2.2 skrll target = next = NextMemoryDescriptor(md, *DescriptorSize); 120 1.2.2.2 skrll for (j = i + 1; j < *NoEntries; j++) { 121 1.2.2.2 skrll if (md->PhysicalStart > target->PhysicalStart) { 122 1.2.2.2 skrll CopyMem(&tmp, md, sizeof(*md)); 123 1.2.2.2 skrll CopyMem(md, target, sizeof(*md)); 124 1.2.2.2 skrll CopyMem(target, &tmp, sizeof(*md)); 125 1.2.2.2 skrll } 126 1.2.2.2 skrll target = NextMemoryDescriptor(target, *DescriptorSize); 127 1.2.2.2 skrll } 128 1.2.2.2 skrll } 129 1.2.2.2 skrll return desc; 130 1.2.2.2 skrll } 131 1.2.2.2 skrll 132 1.2.2.2 skrll /* 133 1.2.2.2 skrll * get memory size below 1MB 134 1.2.2.2 skrll */ 135 1.2.2.2 skrll int 136 1.2.2.2 skrll getbasemem(void) 137 1.2.2.2 skrll { 138 1.2.2.2 skrll EFI_MEMORY_DESCRIPTOR *mdtop, *md, *next; 139 1.2.2.2 skrll UINTN i, NoEntries, MapKey, DescriptorSize, MappingSize; 140 1.2.2.2 skrll UINT32 DescriptorVersion; 141 1.2.2.2 skrll EFI_PHYSICAL_ADDRESS basemem = 0, epa; 142 1.2.2.2 skrll 143 1.2.2.3 skrll mdtop = efi_memory_get_map(&NoEntries, &MapKey, &DescriptorSize, 144 1.2.2.2 skrll &DescriptorVersion, true); 145 1.2.2.2 skrll 146 1.2.2.2 skrll for (i = 0, md = mdtop; i < NoEntries; i++, md = next) { 147 1.2.2.2 skrll next = NextMemoryDescriptor(md, DescriptorSize); 148 1.2.2.2 skrll if (getmemtype(md) != BIM_Memory) 149 1.2.2.2 skrll continue; 150 1.2.2.2 skrll if (md->PhysicalStart >= 1 * 1024 * 1024) 151 1.2.2.2 skrll continue; 152 1.2.2.2 skrll if (basemem != md->PhysicalStart) 153 1.2.2.2 skrll continue; 154 1.2.2.2 skrll 155 1.2.2.2 skrll MappingSize = md->NumberOfPages * EFI_PAGE_SIZE; 156 1.2.2.2 skrll epa = md->PhysicalStart + MappingSize; 157 1.2.2.2 skrll if (epa == 0 || epa > 1 * 1024 * 1024) 158 1.2.2.2 skrll epa = 1 * 1024 * 1024; 159 1.2.2.2 skrll basemem = epa; 160 1.2.2.2 skrll } 161 1.2.2.2 skrll 162 1.2.2.2 skrll FreePool(mdtop); 163 1.2.2.2 skrll 164 1.2.2.2 skrll return basemem / 1024; /* KiB */ 165 1.2.2.2 skrll } 166 1.2.2.2 skrll 167 1.2.2.2 skrll /* 168 1.2.2.2 skrll * get memory size above 1MB below 4GB 169 1.2.2.2 skrll */ 170 1.2.2.2 skrll int 171 1.2.2.2 skrll getextmemx(void) 172 1.2.2.2 skrll { 173 1.2.2.2 skrll EFI_MEMORY_DESCRIPTOR *mdtop, *md, *next; 174 1.2.2.2 skrll UINTN i, NoEntries, MapKey, DescriptorSize, MappingSize; 175 1.2.2.2 skrll UINT32 DescriptorVersion; 176 1.2.2.2 skrll EFI_PHYSICAL_ADDRESS extmem16m = 0; /* 0-16MB */ 177 1.2.2.2 skrll EFI_PHYSICAL_ADDRESS extmem4g = 0; /* 16MB-4GB */ 178 1.2.2.2 skrll EFI_PHYSICAL_ADDRESS pa, epa; 179 1.2.2.2 skrll bool first16m = true, first4g = true; 180 1.2.2.2 skrll int extmem; 181 1.2.2.2 skrll 182 1.2.2.3 skrll mdtop = efi_memory_get_map(&NoEntries, &MapKey, &DescriptorSize, 183 1.2.2.2 skrll &DescriptorVersion, true); 184 1.2.2.2 skrll 185 1.2.2.2 skrll for (i = 0, md = mdtop; i < NoEntries; i++, md = next) { 186 1.2.2.2 skrll next = NextMemoryDescriptor(md, DescriptorSize); 187 1.2.2.2 skrll if (getmemtype(md) == BIM_Reserved) 188 1.2.2.2 skrll continue; 189 1.2.2.2 skrll if (md->PhysicalStart >= 4 * 1024 * 1024 * 1024ULL) 190 1.2.2.2 skrll continue; 191 1.2.2.2 skrll 192 1.2.2.2 skrll MappingSize = md->NumberOfPages * EFI_PAGE_SIZE; 193 1.2.2.2 skrll epa = md->PhysicalStart + MappingSize; 194 1.2.2.2 skrll if (epa == 0 || epa > 4 * 1024 * 1024 * 1024LL) 195 1.2.2.2 skrll epa = 4 * 1024 * 1024 * 1024LL; 196 1.2.2.2 skrll 197 1.2.2.2 skrll if (epa <= 1 * 1024 * 1024) 198 1.2.2.2 skrll continue; 199 1.2.2.2 skrll 200 1.2.2.2 skrll pa = md->PhysicalStart; 201 1.2.2.2 skrll if (pa < 16 * 1024 * 1024) { 202 1.2.2.2 skrll if (first16m || extmem16m == pa) { 203 1.2.2.2 skrll first16m = false; 204 1.2.2.2 skrll if (epa >= 16 * 1024 * 1024) { 205 1.2.2.2 skrll extmem16m = 16 * 1024 * 1024; 206 1.2.2.2 skrll pa = 16 * 1024 * 1024; 207 1.2.2.2 skrll } else 208 1.2.2.2 skrll extmem16m = epa; 209 1.2.2.2 skrll } 210 1.2.2.2 skrll } 211 1.2.2.2 skrll if (pa >= 16 * 1024 * 1024) { 212 1.2.2.2 skrll if (first4g || extmem4g == pa) { 213 1.2.2.2 skrll first4g = false; 214 1.2.2.2 skrll extmem4g = epa; 215 1.2.2.2 skrll } 216 1.2.2.2 skrll } 217 1.2.2.2 skrll } 218 1.2.2.2 skrll 219 1.2.2.2 skrll FreePool(mdtop); 220 1.2.2.2 skrll 221 1.2.2.2 skrll if (extmem16m > 1 * 1024 * 1024) 222 1.2.2.2 skrll extmem16m -= 1 * 1024 * 1024; /* below 1MB */ 223 1.2.2.2 skrll 224 1.2.2.2 skrll extmem = extmem16m / 1024; 225 1.2.2.2 skrll if (extmem == 15 * 1024) 226 1.2.2.2 skrll extmem += extmem4g / 1024; 227 1.2.2.2 skrll return extmem; 228 1.2.2.2 skrll } 229 1.2.2.2 skrll 230 1.2.2.2 skrll void 231 1.2.2.2 skrll efi_memory_probe(void) 232 1.2.2.2 skrll { 233 1.2.2.2 skrll EFI_MEMORY_DESCRIPTOR *mdtop, *md, *next; 234 1.2.2.2 skrll UINTN i, n, NoEntries, MapKey, DescriptorSize, MappingSize; 235 1.2.2.2 skrll UINT32 DescriptorVersion; 236 1.2.2.2 skrll int memtype; 237 1.2.2.2 skrll 238 1.2.2.3 skrll mdtop = efi_memory_get_map(&NoEntries, &MapKey, &DescriptorSize, 239 1.2.2.2 skrll &DescriptorVersion, false); 240 1.2.2.2 skrll 241 1.2.2.2 skrll Print(L" mem["); 242 1.2.2.2 skrll for (i = 0, n = 0, md = mdtop; i < NoEntries; i++, md = next) { 243 1.2.2.2 skrll next = NextMemoryDescriptor(md, DescriptorSize); 244 1.2.2.2 skrll 245 1.2.2.2 skrll memtype = getmemtype(md); 246 1.2.2.2 skrll if (memtype != BIM_Memory) 247 1.2.2.2 skrll continue; 248 1.2.2.2 skrll 249 1.2.2.2 skrll MappingSize = md->NumberOfPages * EFI_PAGE_SIZE; 250 1.2.2.2 skrll if (MappingSize < 12 * 1024) /* XXX Why? from OpenBSD */ 251 1.2.2.2 skrll continue; 252 1.2.2.2 skrll 253 1.2.2.2 skrll if (n++ > 0) 254 1.2.2.2 skrll Print(L" "); 255 1.2.2.2 skrll Print(L"0x%lx-0x%lx", md->PhysicalStart, 256 1.2.2.2 skrll md->PhysicalStart + MappingSize - 1); 257 1.2.2.2 skrll } 258 1.2.2.2 skrll Print(L"]"); 259 1.2.2.2 skrll 260 1.2.2.2 skrll FreePool(mdtop); 261 1.2.2.2 skrll } 262 1.2.2.2 skrll 263 1.2.2.2 skrll void 264 1.2.2.2 skrll efi_memory_show_map(bool sorted) 265 1.2.2.2 skrll { 266 1.2.2.2 skrll EFI_STATUS status; 267 1.2.2.2 skrll EFI_MEMORY_DESCRIPTOR *mdtop, *md, *next; 268 1.2.2.2 skrll UINTN i, NoEntries, MapKey, DescriptorSize; 269 1.2.2.2 skrll UINT32 DescriptorVersion; 270 1.2.2.2 skrll char memstr[32], efimemstr[32]; 271 1.2.2.2 skrll int memtype; 272 1.2.2.2 skrll UINTN cols, rows, row = 0; 273 1.2.2.2 skrll 274 1.2.2.2 skrll status = uefi_call_wrapper(ST->ConOut->QueryMode, 4, ST->ConOut, 275 1.2.2.2 skrll ST->ConOut->Mode->Mode, &cols, &rows); 276 1.2.2.2 skrll if (EFI_ERROR(status) || rows <= 2) 277 1.2.2.2 skrll rows = 0; 278 1.2.2.2 skrll else 279 1.2.2.2 skrll rows -= 2; 280 1.2.2.2 skrll 281 1.2.2.3 skrll mdtop = efi_memory_get_map(&NoEntries, &MapKey, &DescriptorSize, 282 1.2.2.2 skrll &DescriptorVersion, sorted); 283 1.2.2.2 skrll 284 1.2.2.2 skrll for (i = 0, md = mdtop; i < NoEntries; i++, md = next) { 285 1.2.2.2 skrll next = NextMemoryDescriptor(md, DescriptorSize); 286 1.2.2.2 skrll 287 1.2.2.2 skrll memtype = getmemtype(md); 288 1.2.2.2 skrll if (memtype >= __arraycount(memtypes)) 289 1.2.2.2 skrll snprintf(memstr, sizeof(memstr), "unknown (%d)", 290 1.2.2.2 skrll memtype); 291 1.2.2.2 skrll if (md->Type >= __arraycount(efimemtypes)) 292 1.2.2.2 skrll snprintf(efimemstr, sizeof(efimemstr), "unknown (%d)", 293 1.2.2.2 skrll md->Type); 294 1.2.2.2 skrll printf("%016" PRIxMAX "/%016" PRIxMAX ": %s [%s]\n", 295 1.2.2.2 skrll (uintmax_t)md->PhysicalStart, 296 1.2.2.2 skrll (uintmax_t)md->PhysicalStart + 297 1.2.2.2 skrll md->NumberOfPages * EFI_PAGE_SIZE - 1, 298 1.2.2.2 skrll memtype >= __arraycount(memtypes) ? 299 1.2.2.2 skrll memstr : memtypes[memtype], 300 1.2.2.2 skrll md->Type >= __arraycount(efimemtypes) ? 301 1.2.2.2 skrll efimemstr : efimemtypes[md->Type]); 302 1.2.2.2 skrll 303 1.2.2.2 skrll if (++row >= rows) { 304 1.2.2.2 skrll row = 0; 305 1.2.2.2 skrll Print(L"Press Any Key to continue :"); 306 1.2.2.2 skrll (void) awaitkey(-1, 0); 307 1.2.2.2 skrll Print(L"\n"); 308 1.2.2.2 skrll } 309 1.2.2.2 skrll } 310 1.2.2.2 skrll 311 1.2.2.2 skrll FreePool(mdtop); 312 1.2.2.2 skrll } 313 1.2.2.2 skrll 314 1.2.2.2 skrll void 315 1.2.2.2 skrll vpbcopy(const void *va, void *pa, size_t n) 316 1.2.2.2 skrll { 317 1.2.2.2 skrll memmove(pa, va, n); 318 1.2.2.2 skrll } 319 1.2.2.2 skrll 320 1.2.2.2 skrll void 321 1.2.2.2 skrll pvbcopy(const void *pa, void *va, size_t n) 322 1.2.2.2 skrll { 323 1.2.2.2 skrll memmove(va, pa, n); 324 1.2.2.2 skrll } 325 1.2.2.2 skrll 326 1.2.2.2 skrll void 327 1.2.2.2 skrll pbzero(void *pa, size_t n) 328 1.2.2.2 skrll { 329 1.2.2.2 skrll memset(pa, 0, n); 330 1.2.2.2 skrll } 331 1.2.2.2 skrll 332 1.2.2.2 skrll physaddr_t 333 1.2.2.2 skrll vtophys(void *va) 334 1.2.2.2 skrll { 335 1.2.2.2 skrll return (physaddr_t)va; 336 1.2.2.2 skrll } 337
Indexes created Wed Oct 22 13:09:56 GMT 2025