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OvmfPkg/AmdSev: assign and reserve the Sev Secret area

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Create a one page secret area in the MEMFD and reserve the area with a
boot time HOB.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3077
Signed-off-by: James Bottomley <jejb@linux.ibm.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20201130202819.3910-6-jejb@linux.ibm.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
[lersek@redhat.com: s/protect/reserve/g in the commit message, at Ard's
 and James's suggestion]
This commit is contained in:
James Bottomley
2020-11-30 12:28:18 -08:00
committed by mergify[bot]
parent 224752eced
commit bff2811c6d
4 changed files with 65 additions and 0 deletions
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4
OvmfPkg/AmdSev/AmdSevX64.fdf
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@@ -59,6 +59,9 @@ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecGhcbBase|gUefiOvmfPkgTokenSpaceGuid.PcdOvmf
0x00B000|0x001000
gUefiCpuPkgTokenSpaceGuid.PcdSevEsWorkAreaBase|gUefiCpuPkgTokenSpaceGuid.PcdSevEsWorkAreaSize
0x00C000|0x001000
gUefiOvmfPkgTokenSpaceGuid.PcdSevLaunchSecretBase|gUefiOvmfPkgTokenSpaceGuid.PcdSevLaunchSecretSize
0x010000|0x010000
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamBase|gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamSize
@@ -138,6 +141,7 @@ INF OvmfPkg/PlatformPei/PlatformPei.inf
INF MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf
INF UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf
INF UefiCpuPkg/CpuMpPei/CpuMpPei.inf
INF OvmfPkg/AmdSev/SecretPei/SecretPei.inf
!if $(TPM_ENABLE) == TRUE
INF OvmfPkg/Tcg/Tcg2Config/Tcg2ConfigPei.inf