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StandaloneMmPkg: Support using gEfiSmmSmramMemoryGuid to get MMRAM range

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Add the support using gEfiSmmSmramMemoryGuid to get MMRAM ranges.
If gEfiSmmSmramMemoryGuid HOB is not found, then try to get MMRAM ranges
from gEfiMmPeiMmramMemoryReserveGuid HOB.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
This commit is contained in:
Wei6 Xu 2024-05-14 02:54:44 +08:00 committed by mergify[bot]
parent 487fa274c4
commit c8df60801f
6 changed files with 18 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
StandaloneMmPkg/Core/StandaloneMmCore.c
View File

@ -669,9 +669,12 @@ StandaloneMmMain (
//
// Extract the MMRAM ranges from the MMRAM descriptor HOB
//
MmramRangesHob = GetNextGuidHob (&gEfiMmPeiMmramMemoryReserveGuid, HobStart);
MmramRangesHob = GetNextGuidHob (&gEfiSmmSmramMemoryGuid, HobStart);
if (MmramRangesHob == NULL) {
return EFI_UNSUPPORTED;
MmramRangesHob = GetNextGuidHob (&gEfiMmPeiMmramMemoryReserveGuid, HobStart);
if (MmramRangesHob == NULL) {
return EFI_UNSUPPORTED;
}
}
MmramRangesHobData = GET_GUID_HOB_DATA (MmramRangesHob);

1
StandaloneMmPkg/Core/StandaloneMmCore.inf
View File

@ -76,6 +76,7 @@
gEfiEventExitBootServicesGuid
gEfiEventReadyToBootGuid
gMmCommBufferHobGuid
gEfiSmmSmramMemoryGuid
[Pcd]
gStandaloneMmPkgTokenSpaceGuid.PcdFwVolMmMaxEncapsulationDepth ##CONSUMES

7
StandaloneMmPkg/Library/StandaloneMmCoreMemoryAllocationLib/StandaloneMmCoreMemoryAllocationLib.c
View File

@ -857,9 +857,12 @@ MemoryAllocationLibConstructor (
//
// Search for a Hob containing the MMRAM ranges
//
MmramRangesHob = GetNextGuidHob (&gEfiMmPeiMmramMemoryReserveGuid, HobStart);
MmramRangesHob = GetNextGuidHob (&gEfiSmmSmramMemoryGuid, HobStart);
if (MmramRangesHob == NULL) {
return EFI_UNSUPPORTED;
MmramRangesHob = GetNextGuidHob (&gEfiMmPeiMmramMemoryReserveGuid, HobStart);
if (MmramRangesHob == NULL) {
return EFI_UNSUPPORTED;
}
}
MmramRangesHobData = GET_GUID_HOB_DATA (MmramRangesHob);

1
StandaloneMmPkg/Library/StandaloneMmCoreMemoryAllocationLib/StandaloneMmCoreMemoryAllocationLib.inf
View File

@ -42,3 +42,4 @@
[Guids]
gEfiMmPeiMmramMemoryReserveGuid
gEfiSmmSmramMemoryGuid

1
StandaloneMmPkg/Library/StandaloneMmMemLib/StandaloneMmMemLib.inf
View File

@ -52,3 +52,4 @@
[Guids]
gEfiMmPeiMmramMemoryReserveGuid ## SOMETIMES_CONSUMES ## HOB
gEfiSmmSmramMemoryGuid ## SOMETIMES_CONSUMES ## HOB

7
StandaloneMmPkg/Library/StandaloneMmMemLib/X86StandaloneMmMemLibInternal.c
View File

@ -96,9 +96,12 @@ MmMemLibInternalPopulateMmramRanges (
//
// Search for a Hob containing the MMRAM ranges
//
MmramRangesHob = GetFirstGuidHob (&gEfiMmPeiMmramMemoryReserveGuid);
MmramRangesHob = GetFirstGuidHob (&gEfiSmmSmramMemoryGuid);
if (MmramRangesHob == NULL) {
return EFI_UNSUPPORTED;
MmramRangesHob = GetFirstGuidHob (&gEfiMmPeiMmramMemoryReserveGuid);
if (MmramRangesHob == NULL) {
return EFI_UNSUPPORTED;
}
}
MmramRangesHobData = GET_GUID_HOB_DATA (MmramRangesHob);