OvmfPkg/PlatformPei/Platform.c

   1 /**@file
   2   Platform PEI driver
   3
   4   Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
   5   Copyright (c) 2011, Andrei Warkentin <andreiw@motorola.com>
   6
   7   This program and the accompanying materials
   8   are licensed and made available under the terms and conditions of the BSD License
   9   which accompanies this distribution.  The full text of the license may be found at
  10   http://opensource.org/licenses/bsd-license.php
  11
  12   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14
  15 **/
  16
  17 //
  18 // The package level header files this module uses
  19 //
  20 #include <PiPei.h>
  21
  22 //
  23 // The Library classes this module consumes
  24 //
  25 #include <Library/DebugLib.h>
  26 #include <Library/HobLib.h>
  27 #include <Library/IoLib.h>
  28 #include <Library/MemoryAllocationLib.h>
  29 #include <Library/PcdLib.h>
  30 #include <Library/PciLib.h>
  31 #include <Library/PeimEntryPoint.h>
  32 #include <Library/PeiServicesLib.h>
  33 #include <Library/ResourcePublicationLib.h>
  34 #include <Guid/MemoryTypeInformation.h>
  35 #include <Ppi/MasterBootMode.h>
  36 #include <IndustryStandard/Pci22.h>
  37
  38 #include "Platform.h"
  39 #include "Cmos.h"
  40
  41 EFI_MEMORY_TYPE_INFORMATION mDefaultMemoryTypeInformation[] = {
  42   { EfiACPIMemoryNVS,       0x004 },
  43   { EfiACPIReclaimMemory,   0x008 },
  44   { EfiReservedMemoryType,  0x004 },
  45   { EfiRuntimeServicesData, 0x024 },
  46   { EfiRuntimeServicesCode, 0x030 },
  47   { EfiBootServicesCode,    0x180 },
  48   { EfiBootServicesData,    0xF00 },
  49   { EfiMaxMemoryType,       0x000 }
  50 };
  51
  52
  53 EFI_PEI_PPI_DESCRIPTOR   mPpiBootMode[] = {
  54   {
  55     EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
  56     &gEfiPeiMasterBootModePpiGuid,
  57     NULL
  58   }
  59 };
  60
  61
  62 VOID
  63 AddIoMemoryBaseSizeHob (
  64   EFI_PHYSICAL_ADDRESS        MemoryBase,
  65   UINT64                      MemorySize
  66   )
  67 {
  68   BuildResourceDescriptorHob (
  69     EFI_RESOURCE_MEMORY_MAPPED_IO,
  70       EFI_RESOURCE_ATTRIBUTE_PRESENT     |
  71       EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
  72       EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
  73       EFI_RESOURCE_ATTRIBUTE_TESTED,
  74     MemoryBase,
  75     MemorySize
  76     );
  77 }
  78
  79 VOID
  80 AddReservedMemoryBaseSizeHob (
  81   EFI_PHYSICAL_ADDRESS        MemoryBase,
  82   UINT64                      MemorySize
  83   )
  84 {
  85   BuildResourceDescriptorHob (
  86     EFI_RESOURCE_MEMORY_RESERVED,
  87       EFI_RESOURCE_ATTRIBUTE_PRESENT     |
  88       EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
  89       EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
  90       EFI_RESOURCE_ATTRIBUTE_TESTED,
  91     MemoryBase,
  92     MemorySize
  93     );
  94 }
  95
  96 VOID
  97 AddIoMemoryRangeHob (
  98   EFI_PHYSICAL_ADDRESS        MemoryBase,
  99   EFI_PHYSICAL_ADDRESS        MemoryLimit
 100   )
 101 {
 102   AddIoMemoryBaseSizeHob (MemoryBase, (UINT64)(MemoryLimit - MemoryBase));
 103 }
 104
 105
 106 VOID
 107 AddMemoryBaseSizeHob (
 108   EFI_PHYSICAL_ADDRESS        MemoryBase,
 109   UINT64                      MemorySize
 110   )
 111 {
 112   BuildResourceDescriptorHob (
 113     EFI_RESOURCE_SYSTEM_MEMORY,
 114       EFI_RESOURCE_ATTRIBUTE_PRESENT |
 115       EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
 116       EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
 117       EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
 118       EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
 119       EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
 120       EFI_RESOURCE_ATTRIBUTE_TESTED,
 121     MemoryBase,
 122     MemorySize
 123     );
 124 }
 125
 126
 127 VOID
 128 AddMemoryRangeHob (
 129   EFI_PHYSICAL_ADDRESS        MemoryBase,
 130   EFI_PHYSICAL_ADDRESS        MemoryLimit
 131   )
 132 {
 133   AddMemoryBaseSizeHob (MemoryBase, (UINT64)(MemoryLimit - MemoryBase));
 134 }
 135
 136
 137 VOID
 138 AddUntestedMemoryBaseSizeHob (
 139   EFI_PHYSICAL_ADDRESS        MemoryBase,
 140   UINT64                      MemorySize
 141   )
 142 {
 143   BuildResourceDescriptorHob (
 144     EFI_RESOURCE_SYSTEM_MEMORY,
 145       EFI_RESOURCE_ATTRIBUTE_PRESENT |
 146       EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
 147       EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
 148       EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
 149       EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
 150       EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE,
 151     MemoryBase,
 152     MemorySize
 153     );
 154 }
 155
 156
 157 VOID
 158 AddUntestedMemoryRangeHob (
 159   EFI_PHYSICAL_ADDRESS        MemoryBase,
 160   EFI_PHYSICAL_ADDRESS        MemoryLimit
 161   )
 162 {
 163   AddUntestedMemoryBaseSizeHob (MemoryBase, (UINT64)(MemoryLimit - MemoryBase));
 164 }
 165
 166 VOID
 167 MemMapInitialization (
 168   VOID
 169   )
 170 {
 171   //
 172   // Create Memory Type Information HOB
 173   //
 174   BuildGuidDataHob (
 175     &gEfiMemoryTypeInformationGuid,
 176     mDefaultMemoryTypeInformation,
 177     sizeof(mDefaultMemoryTypeInformation)
 178     );
 179
 180   //
 181   // Add PCI IO Port space available for PCI resource allocations.
 182   //
 183   BuildResourceDescriptorHob (
 184     EFI_RESOURCE_IO,
 185     EFI_RESOURCE_ATTRIBUTE_PRESENT     |
 186     EFI_RESOURCE_ATTRIBUTE_INITIALIZED,
 187     0xC000,
 188     0x4000
 189     );
 190
 191   //
 192   // Video memory + Legacy BIOS region
 193   //
 194   AddIoMemoryRangeHob (0x0A0000, BASE_1MB);
 195
 196   if (!mXen) {
 197     UINT32  TopOfLowRam;
 198     TopOfLowRam = GetSystemMemorySizeBelow4gb ();
 199
 200     //
 201     // address       purpose   size
 202     // ------------  --------  -------------------------
 203     // max(top, 2g)  PCI MMIO  0xFC000000 - max(top, 2g)
 204     // 0xFC000000    gap                           44 MB
 205     // 0xFEC00000    IO-APIC                        4 KB
 206     // 0xFEC01000    gap                         1020 KB
 207     // 0xFED00000    HPET                           1 KB
 208     // 0xFED00400    gap                         1023 KB
 209     // 0xFEE00000    LAPIC                          1 MB
 210     //
 211     AddIoMemoryRangeHob (TopOfLowRam < BASE_2GB ?
 212                          BASE_2GB : TopOfLowRam, 0xFC000000);
 213     AddIoMemoryBaseSizeHob (0xFEC00000, SIZE_4KB);
 214     AddIoMemoryBaseSizeHob (0xFED00000, SIZE_1KB);
 215     AddIoMemoryBaseSizeHob (PcdGet32(PcdCpuLocalApicBaseAddress), SIZE_1MB);
 216   } else {
 217     XenPublishRamRegions ();
 218   }
 219 }
 220
 221
 222 VOID
 223 MiscInitialization (
 224   VOID
 225   )
 226 {
 227   //
 228   // Disable A20 Mask
 229   //
 230   IoOr8 (0x92, BIT1);
 231
 232   //
 233   // Build the CPU hob with 36-bit addressing and 16-bits of IO space.
 234   //
 235   BuildCpuHob (36, 16);
 236
 237   //
 238   // If PMREGMISC/PMIOSE is set, assume the ACPI PMBA has been configured (for
 239   // example by Xen) and skip the setup here. This matches the logic in
 240   // AcpiTimerLibConstructor ().
 241   //
 242   if ((PciRead8 (PCI_LIB_ADDRESS (0, 1, 3, 0x80)) & 0x01) == 0) {
 243     //
 244     // The PEI phase should be exited with fully accessibe PIIX4 IO space:
 245     // 1. set PMBA
 246     //
 247     PciAndThenOr32 (
 248       PCI_LIB_ADDRESS (0, 1, 3, 0x40),
 249       (UINT32) ~0xFFC0,
 250       PcdGet16 (PcdAcpiPmBaseAddress)
 251       );
 252
 253     //
 254     // 2. set PCICMD/IOSE
 255     //
 256     PciOr8 (
 257       PCI_LIB_ADDRESS (0, 1, 3, PCI_COMMAND_OFFSET),
 258       EFI_PCI_COMMAND_IO_SPACE
 259       );
 260
 261     //
 262     // 3. set PMREGMISC/PMIOSE
 263     //
 264     PciOr8 (PCI_LIB_ADDRESS (0, 1, 3, 0x80), 0x01);
 265   }
 266 }
 267
 268
 269 VOID
 270 BootModeInitialization (
 271   )
 272 {
 273   EFI_STATUS Status;
 274
 275   Status = PeiServicesSetBootMode (BOOT_WITH_FULL_CONFIGURATION);
 276   ASSERT_EFI_ERROR (Status);
 277
 278   Status = PeiServicesInstallPpi (mPpiBootMode);
 279   ASSERT_EFI_ERROR (Status);
 280 }
 281
 282
 283 VOID
 284 ReserveEmuVariableNvStore (
 285   )
 286 {
 287   EFI_PHYSICAL_ADDRESS VariableStore;
 288
 289   //
 290   // Allocate storage for NV variables early on so it will be
 291   // at a consistent address.  Since VM memory is preserved
 292   // across reboots, this allows the NV variable storage to survive
 293   // a VM reboot.
 294   //
 295   VariableStore =
 296     (EFI_PHYSICAL_ADDRESS)(UINTN)
 297       AllocateAlignedRuntimePages (
 298         EFI_SIZE_TO_PAGES (2 * PcdGet32 (PcdFlashNvStorageFtwSpareSize)),
 299         PcdGet32 (PcdFlashNvStorageFtwSpareSize)
 300         );
 301   DEBUG ((EFI_D_INFO,
 302           "Reserved variable store memory: 0x%lX; size: %dkb\n",
 303           VariableStore,
 304           (2 * PcdGet32 (PcdFlashNvStorageFtwSpareSize)) / 1024
 305         ));
 306   PcdSet64 (PcdEmuVariableNvStoreReserved, VariableStore);
 307 }
 308
 309
 310 VOID
 311 DebugDumpCmos (
 312   VOID
 313   )
 314 {
 315   UINTN  Loop;
 316
 317   DEBUG ((EFI_D_INFO, "CMOS:\n"));
 318
 319   for (Loop = 0; Loop < 0x80; Loop++) {
 320     if ((Loop % 0x10) == 0) {
 321       DEBUG ((EFI_D_INFO, "%02x:", Loop));
 322     }
 323     DEBUG ((EFI_D_INFO, " %02x", CmosRead8 (Loop)));
 324     if ((Loop % 0x10) == 0xf) {
 325       DEBUG ((EFI_D_INFO, "\n"));
 326     }
 327   }
 328 }
 329
 330
 331 /**
 332   Perform Platform PEI initialization.
 333
 334   @param  FileHandle      Handle of the file being invoked.
 335   @param  PeiServices     Describes the list of possible PEI Services.
 336
 337   @return EFI_SUCCESS     The PEIM initialized successfully.
 338
 339 **/
 340 EFI_STATUS
 341 EFIAPI
 342 InitializePlatform (
 343   IN       EFI_PEI_FILE_HANDLE  FileHandle,
 344   IN CONST EFI_PEI_SERVICES     **PeiServices
 345   )
 346 {
 347   DEBUG ((EFI_D_ERROR, "Platform PEIM Loaded\n"));
 348
 349   DebugDumpCmos ();
 350
 351   XenDetect ();
 352
 353   BootModeInitialization ();
 354
 355   PublishPeiMemory ();
 356
 357   if (!mXen) {
 358     InitializeRamRegions ();
 359   }
 360
 361   if (mXen) {
 362     DEBUG ((EFI_D_INFO, "Xen was detected\n"));
 363     InitializeXen ();
 364   }
 365
 366   ReserveEmuVariableNvStore ();
 367
 368   PeiFvInitialization ();
 369
 370   MemMapInitialization ();
 371
 372   MiscInitialization ();
 373
 374   return EFI_SUCCESS;
 375 }