diff options
Diffstat (limited to 'IntelFsp2Pkg/Library/BaseFspPlatformLib/FspPlatformMemory.c')
| -rw-r--r-- | IntelFsp2Pkg/Library/BaseFspPlatformLib/FspPlatformMemory.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/IntelFsp2Pkg/Library/BaseFspPlatformLib/FspPlatformMemory.c b/IntelFsp2Pkg/Library/BaseFspPlatformLib/FspPlatformMemory.c new file mode 100644 index 0000000000..d6684f3b06 --- /dev/null +++ b/IntelFsp2Pkg/Library/BaseFspPlatformLib/FspPlatformMemory.c @@ -0,0 +1,189 @@ +/** @file
+
+ Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiPei.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+#include <Library/HobLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/FspCommonLib.h>
+#include <FspGlobalData.h>
+#include <FspEas.h>
+
+/**
+ Get system memory resource descriptor by owner.
+
+ @param[in] OwnerGuid resource owner guid
+**/
+EFI_HOB_RESOURCE_DESCRIPTOR *
+EFIAPI
+FspGetResourceDescriptorByOwner (
+ IN EFI_GUID *OwnerGuid
+ )
+{
+ EFI_PEI_HOB_POINTERS Hob;
+
+ //
+ // Get the HOB list for processing
+ //
+ Hob.Raw = GetHobList ();
+
+ //
+ // Collect memory ranges
+ //
+ while (!END_OF_HOB_LIST (Hob)) {
+ if (Hob.Header->HobType == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
+ if ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_MEMORY_RESERVED) && \
+ (CompareGuid (&Hob.ResourceDescriptor->Owner, OwnerGuid))) {
+ return Hob.ResourceDescriptor;
+ }
+ }
+ Hob.Raw = GET_NEXT_HOB (Hob);
+ }
+
+ return NULL;
+}
+
+/**
+ Get system memory from HOB.
+
+ @param[in,out] LowMemoryLength less than 4G memory length
+ @param[in,out] HighMemoryLength greater than 4G memory length
+**/
+VOID
+EFIAPI
+FspGetSystemMemorySize (
+ IN OUT UINT64 *LowMemoryLength,
+ IN OUT UINT64 *HighMemoryLength
+ )
+{
+ EFI_STATUS Status;
+ EFI_BOOT_MODE BootMode;
+ EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute;
+ EFI_PEI_HOB_POINTERS Hob;
+
+ ResourceAttribute = (
+ EFI_RESOURCE_ATTRIBUTE_PRESENT |
+ EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
+ EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
+ );
+
+ Status = PeiServicesGetBootMode (&BootMode);
+ ASSERT_EFI_ERROR (Status);
+
+ if (BootMode != BOOT_ON_S3_RESUME) {
+ ResourceAttribute |= EFI_RESOURCE_ATTRIBUTE_TESTED;
+ }
+
+ *HighMemoryLength = 0;
+ *LowMemoryLength = SIZE_1MB;
+ //
+ // Get the HOB list for processing
+ //
+ Hob.Raw = GetHobList ();
+
+ //
+ // Collect memory ranges
+ //
+ while (!END_OF_HOB_LIST (Hob)) {
+ if (Hob.Header->HobType == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
+ if ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) ||
+ ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_MEMORY_RESERVED) &&
+ (Hob.ResourceDescriptor->ResourceAttribute == ResourceAttribute))) {
+ //
+ // Need memory above 1MB to be collected here
+ //
+ if (Hob.ResourceDescriptor->PhysicalStart >= BASE_1MB &&
+ Hob.ResourceDescriptor->PhysicalStart < (EFI_PHYSICAL_ADDRESS) BASE_4GB) {
+ *LowMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength);
+ } else if (Hob.ResourceDescriptor->PhysicalStart >= (EFI_PHYSICAL_ADDRESS) BASE_4GB) {
+ *HighMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength);
+ }
+ }
+ }
+ Hob.Raw = GET_NEXT_HOB (Hob);
+ }
+}
+
+/**
+ Migrate BootLoader data before destroying CAR.
+
+**/
+VOID
+EFIAPI
+FspMigrateTemporaryMemory (
+ VOID
+ )
+{
+ UINT32 BootLoaderTempRamStart;
+ UINT32 BootLoaderTempRamEnd;
+ UINT32 BootLoaderTempRamSize;
+ UINT32 OffsetGap;
+ UINT32 FspParamPtr;
+ VOID *BootLoaderTempRamHob;
+ UINT32 MemoryInitUpdPtr;
+ VOID *PlatformDataPtr;
+
+ //
+ // Get the temporary memory range used by the BootLoader
+ //
+ BootLoaderTempRamStart = GetFspCarBase ();
+ BootLoaderTempRamSize = GetFspCarSize () - PcdGet32(PcdFspTemporaryRamSize);
+
+ BootLoaderTempRamEnd = BootLoaderTempRamStart + BootLoaderTempRamSize;
+
+ //
+ // Build a Boot Loader Temporary Memory GUID HOB
+ //
+ BootLoaderTempRamHob = (VOID *)AllocatePages (EFI_SIZE_TO_PAGES (BootLoaderTempRamSize));
+ ASSERT(BootLoaderTempRamHob != NULL);
+
+ DEBUG ((DEBUG_INFO, "FSP_BOOT_LOADER_TEMPORARY_MEMORY_HOB\n"));
+ DEBUG ((DEBUG_INFO, "FspBootLoaderTemporaryMemory Base : %x\n", BootLoaderTempRamStart));
+ DEBUG ((DEBUG_INFO, "FspBootLoaderTemporaryMemory Size : %x\n", BootLoaderTempRamSize));
+
+ CopyMem (BootLoaderTempRamHob, (VOID *)BootLoaderTempRamStart, BootLoaderTempRamSize);
+ OffsetGap = (UINT32)BootLoaderTempRamHob - BootLoaderTempRamStart;
+
+ //
+ // Fix the FspMemoryinit Parameter Pointers to the new location.
+ //
+ FspParamPtr = GetFspApiParameter ();
+ if ((VOID *)FspParamPtr != NULL && FspParamPtr >= BootLoaderTempRamStart &&
+ FspParamPtr < BootLoaderTempRamEnd) {
+ SetFspApiParameter (FspParamPtr + OffsetGap);
+ }
+
+ //
+ // Update UPD pointer in FSP Global Data
+ //
+ MemoryInitUpdPtr = (UINT32)((UINT32 *)GetFspMemoryInitUpdDataPointer ());
+ if (MemoryInitUpdPtr >= BootLoaderTempRamStart && MemoryInitUpdPtr < BootLoaderTempRamEnd) {
+ SetFspMemoryInitUpdDataPointer ((VOID *)(MemoryInitUpdPtr + OffsetGap));
+ }
+
+ //
+ // Update Platform data pointer in FSP Global Data
+ //
+ PlatformDataPtr = GetFspPlatformDataPointer ();
+ if (((UINT32)PlatformDataPtr >= BootLoaderTempRamStart) &&
+ ((UINT32)PlatformDataPtr < BootLoaderTempRamEnd)) {
+ SetFspPlatformDataPointer ((UINT8 *)PlatformDataPtr + OffsetGap);
+ }
+}
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