diff options
| author | Tom Lendacky <thomas.lendacky@amd.com> | 2020-08-12 15:21:39 -0500 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-08-17 02:46:39 +0000 |
| commit | cf845a749a1cc25c6b63586de08ea69cd8832bc9 (patch) | |
| tree | e8664bca9b5bf4e051e162c0a2286a70493f0aaf /OvmfPkg/PlatformPei | |
| parent | 0afa1d08f185e5d609caf49b5fa92401ce29cd13 (diff) | |
| download | edk2-cf845a749a1cc25c6b63586de08ea69cd8832bc9.tar.gz | |
OvmfPkg: Add support to perform SEV-ES initialization
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198
When SEV-ES is enabled, then SEV is also enabled. Add support to the SEV
initialization function to also check for SEV-ES being enabled, and if
enabled, set the SEV-ES enabled PCD (PcdSevEsIsEnabled).
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'OvmfPkg/PlatformPei')
| -rw-r--r-- | OvmfPkg/PlatformPei/AmdSev.c | 26 | ||||
| -rw-r--r-- | OvmfPkg/PlatformPei/PlatformPei.inf | 1 |
2 files changed, 27 insertions, 0 deletions
diff --git a/OvmfPkg/PlatformPei/AmdSev.c b/OvmfPkg/PlatformPei/AmdSev.c index e484f4b311..4dc5340caa 100644 --- a/OvmfPkg/PlatformPei/AmdSev.c +++ b/OvmfPkg/PlatformPei/AmdSev.c @@ -23,6 +23,27 @@ /**
+ Initialize SEV-ES support if running as an SEV-ES guest.
+
+ **/
+STATIC
+VOID
+AmdSevEsInitialize (
+ VOID
+ )
+{
+ RETURN_STATUS PcdStatus;
+
+ if (!MemEncryptSevEsIsEnabled ()) {
+ return;
+ }
+
+ PcdStatus = PcdSetBoolS (PcdSevEsIsEnabled, TRUE);
+ ASSERT_RETURN_ERROR (PcdStatus);
+}
+
+/**
+
Function checks if SEV support is available, if present then it sets
the dynamic PcdPteMemoryEncryptionAddressOrMask with memory encryption mask.
@@ -103,4 +124,9 @@ AmdSevInitialize ( );
}
}
+
+ //
+ // Check and perform SEV-ES initialization if required.
+ //
+ AmdSevEsInitialize ();
}
diff --git a/OvmfPkg/PlatformPei/PlatformPei.inf b/OvmfPkg/PlatformPei/PlatformPei.inf index ff397b3ee9..00feb96c93 100644 --- a/OvmfPkg/PlatformPei/PlatformPei.inf +++ b/OvmfPkg/PlatformPei/PlatformPei.inf @@ -103,6 +103,7 @@ gUefiCpuPkgTokenSpaceGuid.PcdCpuMaxLogicalProcessorNumber
gUefiCpuPkgTokenSpaceGuid.PcdCpuBootLogicalProcessorNumber
gUefiCpuPkgTokenSpaceGuid.PcdCpuApStackSize
+ gUefiCpuPkgTokenSpaceGuid.PcdSevEsIsEnabled
[FixedPcd]
gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress
|