efimemory.c revision 1.2.2.2
1 1.2.2.2 skrll /* $NetBSD: efimemory.c,v 1.2.2.2 2017/02/05 13:40:12 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 1.2.2.2 skrll "ACPI NVS" 39 1.2.2.2 skrll }; 40 1.2.2.2 skrll 41 1.2.2.2 skrll static const char *efimemtypes[] = { 42 1.2.2.2 skrll "Reserved", 43 1.2.2.2 skrll "LoaderCode", 44 1.2.2.2 skrll "LoaderData", 45 1.2.2.2 skrll "BootServicesCode", 46 1.2.2.2 skrll "BootServicesData", 47 1.2.2.2 skrll "RuntimeServicesCode", 48 1.2.2.2 skrll "RuntimeServicesData", 49 1.2.2.2 skrll "ConventionalMemory", 50 1.2.2.2 skrll "UnusableMemory", 51 1.2.2.2 skrll "ACPIReclaimMemory", 52 1.2.2.2 skrll "ACPIMemoryNVS", 53 1.2.2.2 skrll "MemoryMappedIO", 54 1.2.2.2 skrll "MemoryMappedIOPortSpace", 55 1.2.2.2 skrll "PalCode", 56 1.2.2.2 skrll }; 57 1.2.2.2 skrll 58 1.2.2.2 skrll static int 59 1.2.2.2 skrll getmemtype(EFI_MEMORY_DESCRIPTOR *md) 60 1.2.2.2 skrll { 61 1.2.2.2 skrll 62 1.2.2.2 skrll switch (md->Type) { 63 1.2.2.2 skrll case EfiLoaderCode: 64 1.2.2.2 skrll case EfiLoaderData: 65 1.2.2.2 skrll case EfiBootServicesCode: 66 1.2.2.2 skrll case EfiBootServicesData: 67 1.2.2.2 skrll case EfiConventionalMemory: 68 1.2.2.2 skrll return (md->Attribute & EFI_MEMORY_WB) ? 69 1.2.2.2 skrll BIM_Memory : BIM_Reserved; 70 1.2.2.2 skrll 71 1.2.2.2 skrll case EfiACPIReclaimMemory: 72 1.2.2.2 skrll return BIM_ACPI; 73 1.2.2.2 skrll 74 1.2.2.2 skrll case EfiACPIMemoryNVS: 75 1.2.2.2 skrll return BIM_NVS; 76 1.2.2.2 skrll 77 1.2.2.2 skrll case EfiReservedMemoryType: 78 1.2.2.2 skrll case EfiRuntimeServicesCode: 79 1.2.2.2 skrll case EfiRuntimeServicesData: 80 1.2.2.2 skrll case EfiUnusableMemory: 81 1.2.2.2 skrll case EfiMemoryMappedIO: 82 1.2.2.2 skrll case EfiMemoryMappedIOPortSpace: 83 1.2.2.2 skrll case EfiPalCode: 84 1.2.2.2 skrll case EfiMaxMemoryType: 85 1.2.2.2 skrll return BIM_Reserved; 86 1.2.2.2 skrll } 87 1.2.2.2 skrll return BIM_Reserved; 88 1.2.2.2 skrll } 89 1.2.2.2 skrll 90 1.2.2.2 skrll static EFI_MEMORY_DESCRIPTOR * 91 1.2.2.2 skrll GetMemoryMap(OUT UINTN *NoEntries, OUT UINTN *MapKey, OUT UINTN *DescriptorSize, 92 1.2.2.2 skrll OUT UINT32 *DescriptorVersion, bool sorted) 93 1.2.2.2 skrll { 94 1.2.2.2 skrll EFI_MEMORY_DESCRIPTOR *desc, *md, *next, *target, tmp; 95 1.2.2.2 skrll UINTN i, j; 96 1.2.2.2 skrll 97 1.2.2.2 skrll *NoEntries = 0; 98 1.2.2.2 skrll desc = LibMemoryMap(NoEntries, MapKey, DescriptorSize, 99 1.2.2.2 skrll DescriptorVersion); 100 1.2.2.2 skrll if (desc == NULL) 101 1.2.2.2 skrll Panic(L"LibMemoryMap failed"); 102 1.2.2.2 skrll 103 1.2.2.2 skrll if (!sorted) 104 1.2.2.2 skrll return desc; 105 1.2.2.2 skrll 106 1.2.2.2 skrll for (i = 0, md = desc; i < *NoEntries - 1; i++, md = next) { 107 1.2.2.2 skrll target = next = NextMemoryDescriptor(md, *DescriptorSize); 108 1.2.2.2 skrll for (j = i + 1; j < *NoEntries; j++) { 109 1.2.2.2 skrll if (md->PhysicalStart > target->PhysicalStart) { 110 1.2.2.2 skrll CopyMem(&tmp, md, sizeof(*md)); 111 1.2.2.2 skrll CopyMem(md, target, sizeof(*md)); 112 1.2.2.2 skrll CopyMem(target, &tmp, sizeof(*md)); 113 1.2.2.2 skrll } 114 1.2.2.2 skrll target = NextMemoryDescriptor(target, *DescriptorSize); 115 1.2.2.2 skrll } 116 1.2.2.2 skrll } 117 1.2.2.2 skrll return desc; 118 1.2.2.2 skrll } 119 1.2.2.2 skrll 120 1.2.2.2 skrll /* 121 1.2.2.2 skrll * get memory size below 1MB 122 1.2.2.2 skrll */ 123 1.2.2.2 skrll int 124 1.2.2.2 skrll getbasemem(void) 125 1.2.2.2 skrll { 126 1.2.2.2 skrll EFI_MEMORY_DESCRIPTOR *mdtop, *md, *next; 127 1.2.2.2 skrll UINTN i, NoEntries, MapKey, DescriptorSize, MappingSize; 128 1.2.2.2 skrll UINT32 DescriptorVersion; 129 1.2.2.2 skrll EFI_PHYSICAL_ADDRESS basemem = 0, epa; 130 1.2.2.2 skrll 131 1.2.2.2 skrll mdtop = GetMemoryMap(&NoEntries, &MapKey, &DescriptorSize, 132 1.2.2.2 skrll &DescriptorVersion, true); 133 1.2.2.2 skrll 134 1.2.2.2 skrll for (i = 0, md = mdtop; i < NoEntries; i++, md = next) { 135 1.2.2.2 skrll next = NextMemoryDescriptor(md, DescriptorSize); 136 1.2.2.2 skrll if (getmemtype(md) != BIM_Memory) 137 1.2.2.2 skrll continue; 138 1.2.2.2 skrll if (md->PhysicalStart >= 1 * 1024 * 1024) 139 1.2.2.2 skrll continue; 140 1.2.2.2 skrll if (basemem != md->PhysicalStart) 141 1.2.2.2 skrll continue; 142 1.2.2.2 skrll 143 1.2.2.2 skrll MappingSize = md->NumberOfPages * EFI_PAGE_SIZE; 144 1.2.2.2 skrll epa = md->PhysicalStart + MappingSize; 145 1.2.2.2 skrll if (epa == 0 || epa > 1 * 1024 * 1024) 146 1.2.2.2 skrll epa = 1 * 1024 * 1024; 147 1.2.2.2 skrll basemem = epa; 148 1.2.2.2 skrll } 149 1.2.2.2 skrll 150 1.2.2.2 skrll FreePool(mdtop); 151 1.2.2.2 skrll 152 1.2.2.2 skrll return basemem / 1024; /* KiB */ 153 1.2.2.2 skrll } 154 1.2.2.2 skrll 155 1.2.2.2 skrll /* 156 1.2.2.2 skrll * get memory size above 1MB below 4GB 157 1.2.2.2 skrll */ 158 1.2.2.2 skrll int 159 1.2.2.2 skrll getextmemx(void) 160 1.2.2.2 skrll { 161 1.2.2.2 skrll EFI_MEMORY_DESCRIPTOR *mdtop, *md, *next; 162 1.2.2.2 skrll UINTN i, NoEntries, MapKey, DescriptorSize, MappingSize; 163 1.2.2.2 skrll UINT32 DescriptorVersion; 164 1.2.2.2 skrll EFI_PHYSICAL_ADDRESS extmem16m = 0; /* 0-16MB */ 165 1.2.2.2 skrll EFI_PHYSICAL_ADDRESS extmem4g = 0; /* 16MB-4GB */ 166 1.2.2.2 skrll EFI_PHYSICAL_ADDRESS pa, epa; 167 1.2.2.2 skrll bool first16m = true, first4g = true; 168 1.2.2.2 skrll int extmem; 169 1.2.2.2 skrll 170 1.2.2.2 skrll mdtop = GetMemoryMap(&NoEntries, &MapKey, &DescriptorSize, 171 1.2.2.2 skrll &DescriptorVersion, true); 172 1.2.2.2 skrll 173 1.2.2.2 skrll for (i = 0, md = mdtop; i < NoEntries; i++, md = next) { 174 1.2.2.2 skrll next = NextMemoryDescriptor(md, DescriptorSize); 175 1.2.2.2 skrll if (getmemtype(md) == BIM_Reserved) 176 1.2.2.2 skrll continue; 177 1.2.2.2 skrll if (md->PhysicalStart >= 4 * 1024 * 1024 * 1024ULL) 178 1.2.2.2 skrll continue; 179 1.2.2.2 skrll 180 1.2.2.2 skrll MappingSize = md->NumberOfPages * EFI_PAGE_SIZE; 181 1.2.2.2 skrll epa = md->PhysicalStart + MappingSize; 182 1.2.2.2 skrll if (epa == 0 || epa > 4 * 1024 * 1024 * 1024LL) 183 1.2.2.2 skrll epa = 4 * 1024 * 1024 * 1024LL; 184 1.2.2.2 skrll 185 1.2.2.2 skrll if (epa <= 1 * 1024 * 1024) 186 1.2.2.2 skrll continue; 187 1.2.2.2 skrll 188 1.2.2.2 skrll pa = md->PhysicalStart; 189 1.2.2.2 skrll if (pa < 16 * 1024 * 1024) { 190 1.2.2.2 skrll if (first16m || extmem16m == pa) { 191 1.2.2.2 skrll first16m = false; 192 1.2.2.2 skrll if (epa >= 16 * 1024 * 1024) { 193 1.2.2.2 skrll extmem16m = 16 * 1024 * 1024; 194 1.2.2.2 skrll pa = 16 * 1024 * 1024; 195 1.2.2.2 skrll } else 196 1.2.2.2 skrll extmem16m = epa; 197 1.2.2.2 skrll } 198 1.2.2.2 skrll } 199 1.2.2.2 skrll if (pa >= 16 * 1024 * 1024) { 200 1.2.2.2 skrll if (first4g || extmem4g == pa) { 201 1.2.2.2 skrll first4g = false; 202 1.2.2.2 skrll extmem4g = epa; 203 1.2.2.2 skrll } 204 1.2.2.2 skrll } 205 1.2.2.2 skrll } 206 1.2.2.2 skrll 207 1.2.2.2 skrll FreePool(mdtop); 208 1.2.2.2 skrll 209 1.2.2.2 skrll if (extmem16m > 1 * 1024 * 1024) 210 1.2.2.2 skrll extmem16m -= 1 * 1024 * 1024; /* below 1MB */ 211 1.2.2.2 skrll 212 1.2.2.2 skrll extmem = extmem16m / 1024; 213 1.2.2.2 skrll if (extmem == 15 * 1024) 214 1.2.2.2 skrll extmem += extmem4g / 1024; 215 1.2.2.2 skrll return extmem; 216 1.2.2.2 skrll } 217 1.2.2.2 skrll 218 1.2.2.2 skrll void 219 1.2.2.2 skrll efi_memory_probe(void) 220 1.2.2.2 skrll { 221 1.2.2.2 skrll EFI_MEMORY_DESCRIPTOR *mdtop, *md, *next; 222 1.2.2.2 skrll UINTN i, n, NoEntries, MapKey, DescriptorSize, MappingSize; 223 1.2.2.2 skrll UINT32 DescriptorVersion; 224 1.2.2.2 skrll int memtype; 225 1.2.2.2 skrll 226 1.2.2.2 skrll mdtop = GetMemoryMap(&NoEntries, &MapKey, &DescriptorSize, 227 1.2.2.2 skrll &DescriptorVersion, false); 228 1.2.2.2 skrll 229 1.2.2.2 skrll Print(L" mem["); 230 1.2.2.2 skrll for (i = 0, n = 0, md = mdtop; i < NoEntries; i++, md = next) { 231 1.2.2.2 skrll next = NextMemoryDescriptor(md, DescriptorSize); 232 1.2.2.2 skrll 233 1.2.2.2 skrll memtype = getmemtype(md); 234 1.2.2.2 skrll if (memtype != BIM_Memory) 235 1.2.2.2 skrll continue; 236 1.2.2.2 skrll 237 1.2.2.2 skrll MappingSize = md->NumberOfPages * EFI_PAGE_SIZE; 238 1.2.2.2 skrll if (MappingSize < 12 * 1024) /* XXX Why? from OpenBSD */ 239 1.2.2.2 skrll continue; 240 1.2.2.2 skrll 241 1.2.2.2 skrll if (n++ > 0) 242 1.2.2.2 skrll Print(L" "); 243 1.2.2.2 skrll Print(L"0x%lx-0x%lx", md->PhysicalStart, 244 1.2.2.2 skrll md->PhysicalStart + MappingSize - 1); 245 1.2.2.2 skrll } 246 1.2.2.2 skrll Print(L"]"); 247 1.2.2.2 skrll 248 1.2.2.2 skrll FreePool(mdtop); 249 1.2.2.2 skrll } 250 1.2.2.2 skrll 251 1.2.2.2 skrll void 252 1.2.2.2 skrll efi_memory_show_map(bool sorted) 253 1.2.2.2 skrll { 254 1.2.2.2 skrll EFI_STATUS status; 255 1.2.2.2 skrll EFI_MEMORY_DESCRIPTOR *mdtop, *md, *next; 256 1.2.2.2 skrll UINTN i, NoEntries, MapKey, DescriptorSize; 257 1.2.2.2 skrll UINT32 DescriptorVersion; 258 1.2.2.2 skrll char memstr[32], efimemstr[32]; 259 1.2.2.2 skrll int memtype; 260 1.2.2.2 skrll UINTN cols, rows, row = 0; 261 1.2.2.2 skrll 262 1.2.2.2 skrll status = uefi_call_wrapper(ST->ConOut->QueryMode, 4, ST->ConOut, 263 1.2.2.2 skrll ST->ConOut->Mode->Mode, &cols, &rows); 264 1.2.2.2 skrll if (EFI_ERROR(status) || rows <= 2) 265 1.2.2.2 skrll rows = 0; 266 1.2.2.2 skrll else 267 1.2.2.2 skrll rows -= 2; 268 1.2.2.2 skrll 269 1.2.2.2 skrll mdtop = GetMemoryMap(&NoEntries, &MapKey, &DescriptorSize, 270 1.2.2.2 skrll &DescriptorVersion, sorted); 271 1.2.2.2 skrll 272 1.2.2.2 skrll for (i = 0, md = mdtop; i < NoEntries; i++, md = next) { 273 1.2.2.2 skrll next = NextMemoryDescriptor(md, DescriptorSize); 274 1.2.2.2 skrll 275 1.2.2.2 skrll memtype = getmemtype(md); 276 1.2.2.2 skrll if (memtype >= __arraycount(memtypes)) 277 1.2.2.2 skrll snprintf(memstr, sizeof(memstr), "unknown (%d)", 278 1.2.2.2 skrll memtype); 279 1.2.2.2 skrll if (md->Type >= __arraycount(efimemtypes)) 280 1.2.2.2 skrll snprintf(efimemstr, sizeof(efimemstr), "unknown (%d)", 281 1.2.2.2 skrll md->Type); 282 1.2.2.2 skrll printf("%016" PRIxMAX "/%016" PRIxMAX ": %s [%s]\n", 283 1.2.2.2 skrll (uintmax_t)md->PhysicalStart, 284 1.2.2.2 skrll (uintmax_t)md->PhysicalStart + 285 1.2.2.2 skrll md->NumberOfPages * EFI_PAGE_SIZE - 1, 286 1.2.2.2 skrll memtype >= __arraycount(memtypes) ? 287 1.2.2.2 skrll memstr : memtypes[memtype], 288 1.2.2.2 skrll md->Type >= __arraycount(efimemtypes) ? 289 1.2.2.2 skrll efimemstr : efimemtypes[md->Type]); 290 1.2.2.2 skrll 291 1.2.2.2 skrll if (++row >= rows) { 292 1.2.2.2 skrll row = 0; 293 1.2.2.2 skrll Print(L"Press Any Key to continue :"); 294 1.2.2.2 skrll (void) awaitkey(-1, 0); 295 1.2.2.2 skrll Print(L"\n"); 296 1.2.2.2 skrll } 297 1.2.2.2 skrll } 298 1.2.2.2 skrll 299 1.2.2.2 skrll FreePool(mdtop); 300 1.2.2.2 skrll } 301 1.2.2.2 skrll 302 1.2.2.2 skrll void 303 1.2.2.2 skrll bi_getmemmap(void) 304 1.2.2.2 skrll { 305 1.2.2.2 skrll EFI_MEMORY_DESCRIPTOR *md; 306 1.2.2.2 skrll UINTN NoEntries, MapKey, DescriptorSize; 307 1.2.2.2 skrll UINT32 DescriptorVersion; 308 1.2.2.2 skrll struct btinfo_efimemmap *bim; 309 1.2.2.2 skrll size_t allocsz; 310 1.2.2.2 skrll 311 1.2.2.2 skrll md = GetMemoryMap(&NoEntries, &MapKey, &DescriptorSize, 312 1.2.2.2 skrll &DescriptorVersion, true); 313 1.2.2.2 skrll 314 1.2.2.2 skrll allocsz = sizeof(struct btinfo_efimemmap) - 1 315 1.2.2.2 skrll + NoEntries * DescriptorSize; 316 1.2.2.2 skrll bim = alloc(allocsz); 317 1.2.2.2 skrll 318 1.2.2.2 skrll bim->num = NoEntries; 319 1.2.2.2 skrll bim->version = DescriptorVersion; 320 1.2.2.2 skrll bim->size = DescriptorSize; 321 1.2.2.2 skrll memcpy(bim->memmap, md, NoEntries * DescriptorSize); 322 1.2.2.2 skrll 323 1.2.2.2 skrll FreePool(md); 324 1.2.2.2 skrll 325 1.2.2.2 skrll BI_ADD(bim, BTINFO_EFIMEMMAP, allocsz); 326 1.2.2.2 skrll } 327 1.2.2.2 skrll 328 1.2.2.2 skrll void 329 1.2.2.2 skrll vpbcopy(const void *va, void *pa, size_t n) 330 1.2.2.2 skrll { 331 1.2.2.2 skrll memmove(pa, va, n); 332 1.2.2.2 skrll } 333 1.2.2.2 skrll 334 1.2.2.2 skrll void 335 1.2.2.2 skrll pvbcopy(const void *pa, void *va, size_t n) 336 1.2.2.2 skrll { 337 1.2.2.2 skrll memmove(va, pa, n); 338 1.2.2.2 skrll } 339 1.2.2.2 skrll 340 1.2.2.2 skrll void 341 1.2.2.2 skrll pbzero(void *pa, size_t n) 342 1.2.2.2 skrll { 343 1.2.2.2 skrll memset(pa, 0, n); 344 1.2.2.2 skrll } 345 1.2.2.2 skrll 346 1.2.2.2 skrll physaddr_t 347 1.2.2.2 skrll vtophys(void *va) 348 1.2.2.2 skrll { 349 1.2.2.2 skrll return (physaddr_t)va; 350 1.2.2.2 skrll } 351
Indexes created Tue Oct 21 16:10:11 GMT 2025