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 <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>

diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec
index 17228cb5a84fd49d5d22c5fc7b99de14a3e4fb0d..d83c084467b3bf93fb2835f6400d4a809118e1bf 100644 (file)
--- a/UefiCpuPkg/UefiCpuPkg.dec
+++ b/UefiCpuPkg/UefiCpuPkg.dec
@@ -164,6 +164,14 @@
   # @Prompt Specify the count of pre allocated SMM MP tokens per chunk.\r
   gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmMpTokenCountPerChunk|64|UINT32|0x30002002\r
 \r
+  ## Area of memory where the SEV-ES work area block lives.\r
+  # @Prompt Configure the SEV-ES work area base\r
+  gUefiCpuPkgTokenSpaceGuid.PcdSevEsWorkAreaBase|0x0|UINT32|0x30002005\r
+\r
+  ## Size of teh area of memory where the SEV-ES work area block lives.\r
+  # @Prompt Configure the SEV-ES work area base\r
+  gUefiCpuPkgTokenSpaceGuid.PcdSevEsWorkAreaSize|0x0|UINT32|0x30002006\r
+\r
 [PcdsFixedAtBuild, PcdsPatchableInModule]\r
   ## This value is the CPU Local APIC base address, which aligns the address on a 4-KByte boundary.\r
   # @Prompt Configure base address of CPU Local APIC\r

diff --git a/UefiCpuPkg/UefiCpuPkg.uni b/UefiCpuPkg/UefiCpuPkg.uni
index f4a0c72f6293ff85fed30e9a4c2d7ce1899be7c7..219c1963bf0883edf06f8df940548634b70915e9 100644 (file)
--- a/UefiCpuPkg/UefiCpuPkg.uni
+++ b/UefiCpuPkg/UefiCpuPkg.uni
@@ -281,3 +281,11 @@
 \r
 #string STR_gUefiCpuPkgTokenSpaceGuid_PcdSevEsIsEnabled_PROMPT  #language en-US "Specifies whether SEV-ES is enabled"\r
 #string STR_gUefiCpuPkgTokenSpaceGuid_PcdSevEsIsEnabled_HELP    #language en-US "Set to TRUE when running as an SEV-ES guest, FALSE otherwise."\r
+\r
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdSevEsWorkAreaBase_PROMPT  #language en-US "Specify the address of the SEV-ES work area"\r
+\r
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdSevEsWorkAreaBase_HELP    #language en-US "Specifies the address of the work area used by an SEV-ES guest."\r
+\r
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdSevEsWorkAreaSize_PROMPT  #language en-US "Specify the size of the SEV-ES work area"\r
+\r
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdSevEsWorkAreaSize_HELP    #language en-US "Specifies the size of the work area used by an SEV-ES guest."\r