From 88a363009a6a09deb64fecc3131ce0f06b9fb474 Mon Sep 17 00:00:00 2001 From: Tom Lendacky Date: Wed, 12 Aug 2020 15:21:40 -0500 Subject: [PATCH] UefiCpuPkg: Create an SEV-ES workarea PCD BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198 Create an SEV-ES workarea PCD. This PCD will be used for BSP communication during SEC and for AP startup during PEI and DXE phases, the latter is the reason for creating it in the UefiCpuPkg. Cc: Eric Dong Cc: Ray Ni Cc: Laszlo Ersek Reviewed-by: Eric Dong Signed-off-by: Tom Lendacky Regression-tested-by: Laszlo Ersek --- UefiCpuPkg/UefiCpuPkg.dec | 8 ++++++++ UefiCpuPkg/UefiCpuPkg.uni | 8 ++++++++ 2 files changed, 16 insertions(+) diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec index 17228cb5a8..d83c084467 100644 --- a/UefiCpuPkg/UefiCpuPkg.dec +++ b/UefiCpuPkg/UefiCpuPkg.dec @@ -164,6 +164,14 @@ # @Prompt Specify the count of pre allocated SMM MP tokens per chunk. gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmMpTokenCountPerChunk|64|UINT32|0x30002002 + ## Area of memory where the SEV-ES work area block lives. + # @Prompt Configure the SEV-ES work area base + gUefiCpuPkgTokenSpaceGuid.PcdSevEsWorkAreaBase|0x0|UINT32|0x30002005 + + ## Size of teh area of memory where the SEV-ES work area block lives. + # @Prompt Configure the SEV-ES work area base + gUefiCpuPkgTokenSpaceGuid.PcdSevEsWorkAreaSize|0x0|UINT32|0x30002006 + [PcdsFixedAtBuild, PcdsPatchableInModule] ## This value is the CPU Local APIC base address, which aligns the address on a 4-KByte boundary. # @Prompt Configure base address of CPU Local APIC diff --git a/UefiCpuPkg/UefiCpuPkg.uni b/UefiCpuPkg/UefiCpuPkg.uni index f4a0c72f62..219c1963bf 100644 --- a/UefiCpuPkg/UefiCpuPkg.uni +++ b/UefiCpuPkg/UefiCpuPkg.uni @@ -281,3 +281,11 @@ #string STR_gUefiCpuPkgTokenSpaceGuid_PcdSevEsIsEnabled_PROMPT #language en-US "Specifies whether SEV-ES is enabled" #string STR_gUefiCpuPkgTokenSpaceGuid_PcdSevEsIsEnabled_HELP #language en-US "Set to TRUE when running as an SEV-ES guest, FALSE otherwise." + +#string STR_gUefiCpuPkgTokenSpaceGuid_PcdSevEsWorkAreaBase_PROMPT #language en-US "Specify the address of the SEV-ES work area" + +#string STR_gUefiCpuPkgTokenSpaceGuid_PcdSevEsWorkAreaBase_HELP #language en-US "Specifies the address of the work area used by an SEV-ES guest." + +#string STR_gUefiCpuPkgTokenSpaceGuid_PcdSevEsWorkAreaSize_PROMPT #language en-US "Specify the size of the SEV-ES work area" + +#string STR_gUefiCpuPkgTokenSpaceGuid_PcdSevEsWorkAreaSize_HELP #language en-US "Specifies the size of the work area used by an SEV-ES guest." -- 2.39.2