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OvmfPkg/PlatformPei: Refactor InitializeRamRegions 

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

InitializeRamRegions is refactored into 3 calls:
 - PlatformQemuInitializeRam
 - SevInitializeRam
 - PlatformQemuInitializeRamForS3

SevInitializeRam is not in PlatformInitLib. Because in the first stage
PlatformInitLib only support the basic platform featues.

PlatformQemuInitializeRamForS3 wraps the code which was previously in
InitializeRamRegions (many code in 2 if-checks).

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
This commit is contained in:
Min Xu 2022-03-07 21:54:30 +08:00 committed by mergify[bot]
parent f3801cf26c
commit e510326245
3 changed files with 28 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
OvmfPkg/PlatformPei/MemDetect.c
View File

@ -161,7 +161,7 @@ PlatformQemuUc32BaseInitialization (
// variable MTRR suffices by truncating the size to a whole power of two,
// while keeping the end affixed to 4GB. This will round the base up.
//
LowerMemorySize = GetSystemMemorySizeBelow4gb (PlatformInfoHob);
LowerMemorySize = PlatformGetSystemMemorySizeBelow4gb (PlatformInfoHob);
PlatformInfoHob->Uc32Size = GetPowerOfTwo32 ((UINT32)(SIZE_4GB - LowerMemorySize));
PlatformInfoHob->Uc32Base = (UINT32)(SIZE_4GB - PlatformInfoHob->Uc32Size);
//
@ -372,7 +372,8 @@ GetHighestSystemMemoryAddressFromPvhMemmap (
}
UINT32
GetSystemMemorySizeBelow4gb (
EFIAPI
PlatformGetSystemMemorySizeBelow4gb (
IN EFI_HOB_PLATFORM_INFO *PlatformInfoHob
)
{
@ -761,7 +762,7 @@ PublishPeiMemory (
UINT32 S3AcpiReservedMemoryBase;
UINT32 S3AcpiReservedMemorySize;
LowerMemorySize = GetSystemMemorySizeBelow4gb (&mPlatformInfoHob);
LowerMemorySize = PlatformGetSystemMemorySizeBelow4gb (&mPlatformInfoHob);
if (mPlatformInfoHob.SmmSmramRequire) {
//
// TSEG is chipped from the end of low RAM
@ -871,7 +872,7 @@ QemuInitializeRamBelow1gb (
**/
STATIC
VOID
QemuInitializeRam (
PlatformQemuInitializeRam (
IN EFI_HOB_PLATFORM_INFO *PlatformInfoHob
)
{
@ -885,7 +886,7 @@ QemuInitializeRam (
//
// Determine total memory size available
//
LowerMemorySize = GetSystemMemorySizeBelow4gb (PlatformInfoHob);
LowerMemorySize = PlatformGetSystemMemorySizeBelow4gb (PlatformInfoHob);
if (PlatformInfoHob->BootMode == BOOT_ON_S3_RESUME) {
//
@ -995,19 +996,12 @@ QemuInitializeRam (
}
}
/**
Publish system RAM and reserve memory regions
**/
STATIC
VOID
InitializeRamRegions (
PlatformQemuInitializeRamForS3 (
IN EFI_HOB_PLATFORM_INFO *PlatformInfoHob
)
{
QemuInitializeRam (PlatformInfoHob);
SevInitializeRam ();
if (PlatformInfoHob->S3Supported && (PlatformInfoHob->BootMode != BOOT_ON_S3_RESUME)) {
//
// This is the memory range that will be used for PEI on S3 resume
@ -1113,7 +1107,7 @@ InitializeRamRegions (
//
TsegSize = PlatformInfoHob->Q35TsegMbytes * SIZE_1MB;
BuildMemoryAllocationHob (
GetSystemMemorySizeBelow4gb (PlatformInfoHob) - TsegSize,
PlatformGetSystemMemorySizeBelow4gb (PlatformInfoHob) - TsegSize,
TsegSize,
EfiReservedMemoryType
);
@ -1152,3 +1146,19 @@ InitializeRamRegions (
#endif
}
}
/**
Publish system RAM and reserve memory regions
**/
VOID
InitializeRamRegions (
IN EFI_HOB_PLATFORM_INFO *PlatformInfoHob
)
{
PlatformQemuInitializeRam (PlatformInfoHob);
SevInitializeRam ();
PlatformQemuInitializeRamForS3 (PlatformInfoHob);
}

2
OvmfPkg/PlatformPei/Platform.c
View File

@ -79,7 +79,7 @@ MemMapInitialization (
return;
}
TopOfLowRam = GetSystemMemorySizeBelow4gb (PlatformInfoHob);
TopOfLowRam = PlatformGetSystemMemorySizeBelow4gb (PlatformInfoHob);
PciExBarBase = 0;
if (PlatformInfoHob->HostBridgeDevId == INTEL_Q35_MCH_DEVICE_ID) {
//

3
OvmfPkg/PlatformPei/Platform.h
View File

@ -35,7 +35,8 @@ PublishPeiMemory (
);
UINT32
GetSystemMemorySizeBelow4gb (
EFIAPI
PlatformGetSystemMemorySizeBelow4gb (
IN EFI_HOB_PLATFORM_INFO *PlatformInfoHob
);