sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

UefiCpuPkg: Disable MTRR programming for UefiPayloadPkg

Browse Source 
The MTRRs have already been programmed by FSB.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
This commit is contained in:
Patrick Rudolph
2020-10-12 07:55:44 -06:00
committed by Jeremy Soller
parent 599f4a4ddd
commit 83c68bbe1d
6 changed files with 19 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
UefiCpuPkg/Library/MtrrLib/MtrrLib.c
View File

@@ -2763,6 +2763,10 @@ IsMtrrSupported (
CPUID_VERSION_INFO_EDX Edx; CPUID_VERSION_INFO_EDX Edx;
MSR_IA32_MTRRCAP_REGISTER MtrrCap; MSR_IA32_MTRRCAP_REGISTER MtrrCap;
if (PcdGetBool(PcdCpuDisableMtrrProgramming)) {
return FALSE;
}
// //
// Check CPUID(1).EDX[12] for MTRR capability // Check CPUID(1).EDX[12] for MTRR capability
// //

2
UefiCpuPkg/Library/MtrrLib/MtrrLib.inf
View File

@@ -37,4 +37,4 @@
[Pcd] [Pcd]
gUefiCpuPkgTokenSpaceGuid.PcdCpuNumberOfReservedVariableMtrrs ## SOMETIMES_CONSUMES gUefiCpuPkgTokenSpaceGuid.PcdCpuNumberOfReservedVariableMtrrs ## SOMETIMES_CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdCpuDisableMtrrProgramming ## CONSUMES

4
UefiCpuPkg/UefiCpuPkg.dec
View File

@@ -197,6 +197,10 @@
# @Prompt SMM Code Access Check. # @Prompt SMM Code Access Check.
gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmCodeAccessCheckEnable|TRUE|BOOLEAN|0x60000013 gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmCodeAccessCheckEnable|TRUE|BOOLEAN|0x60000013
## Disables MTRR programming in case it's already programmed by FSB.
# @Prompt Disable MTRR programming.
gUefiCpuPkgTokenSpaceGuid.PcdCpuDisableMtrrProgramming|FALSE|BOOLEAN|0x00000017
## Specifies the number of variable MTRRs reserved for OS use. The default number of ## Specifies the number of variable MTRRs reserved for OS use. The default number of
# MTRRs reserved for OS use is 2. # MTRRs reserved for OS use is 2.
# @Prompt Number of reserved variable MTRRs. # @Prompt Number of reserved variable MTRRs.

8
UefiCpuPkg/UefiCpuPkg.uni
View File

@@ -140,9 +140,13 @@
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuHotPlugDataAddress_HELP #language en-US "Contains the pointer to a CPU Hot Plug Data structure if CPU hot-plug is supported." #string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuHotPlugDataAddress_HELP #language en-US "Contains the pointer to a CPU Hot Plug Data structure if CPU hot-plug is supported."
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuNumberOfReservedVariableMtrrs_PROMPT #language en-US "Number of reserved variable MTRRs" #string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuDisableMtrrProgramming_PROMPT #language en-US "Number of reserved variable MTRRs"
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuNumberOfReservedVariableMtrrs_HELP #language en-US "Specifies the number of variable MTRRs reserved for OS use." #string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuDisableMtrrProgramming_HELP #language en-US "Specifies the number of variable MTRRs reserved for OS use."
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuNumberOfReservedVariableMtrrs_PROMPT #language en-US "Disable MTRR programming."
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuNumberOfReservedVariableMtrrs_HELP #language en-US "Disables MTRR programming in case it's already programmed by FSB."
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuApLoopMode_PROMPT #language en-US "The AP wait loop state" #string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuApLoopMode_PROMPT #language en-US "The AP wait loop state"

2
UefiPayloadPkg/UefiPayloadPkgIa32.dsc
View File

@@ -326,6 +326,8 @@
!if $(SOURCE_DEBUG_ENABLE) !if $(SOURCE_DEBUG_ENABLE)
gEfiSourceLevelDebugPkgTokenSpaceGuid.PcdDebugLoadImageMethod|0x2 gEfiSourceLevelDebugPkgTokenSpaceGuid.PcdDebugLoadImageMethod|0x2
!endif !endif
# Disable MTRR programming
gUefiCpuPkgTokenSpaceGuid.PcdCpuDisableMtrrProgramming|TRUE
[PcdsPatchableInModule.common] [PcdsPatchableInModule.common]
gEfiMdePkgTokenSpaceGuid.PcdReportStatusCodePropertyMask|0x7 gEfiMdePkgTokenSpaceGuid.PcdReportStatusCodePropertyMask|0x7

2
UefiPayloadPkg/UefiPayloadPkgIa32X64.dsc
View File

@@ -335,6 +335,8 @@
!if $(SOURCE_DEBUG_ENABLE) !if $(SOURCE_DEBUG_ENABLE)
gEfiSourceLevelDebugPkgTokenSpaceGuid.PcdDebugLoadImageMethod|0x2 gEfiSourceLevelDebugPkgTokenSpaceGuid.PcdDebugLoadImageMethod|0x2
!endif !endif
# Disable MTRR programming
gUefiCpuPkgTokenSpaceGuid.PcdCpuDisableMtrrProgramming|TRUE
[PcdsPatchableInModule.common] [PcdsPatchableInModule.common]
gEfiMdePkgTokenSpaceGuid.PcdReportStatusCodePropertyMask|0x7 gEfiMdePkgTokenSpaceGuid.PcdReportStatusCodePropertyMask|0x7