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| author | Tom Lendacky <thomas.lendacky@amd.com> | 2020-08-12 15:21:34 -0500 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-08-16 16:45:42 +0000 |
| commit | 39936d3393448525190b10284b77b1881808f57f (patch) | |
| tree | 88f99580523f85f4c613557b567ea55ad6e17a75 /MdeModulePkg/MdeModulePkg.dec | |
| parent | 7f7f511c5a74676523ed48435350f6e35282b62b (diff) | |
| download | edk2-39936d3393448525190b10284b77b1881808f57f.tar.gz | |
MdeModulePkg: Create PCDs to be used in support of SEV-ES
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198
Two new dynamic MdeModulePkg PCDs are needed to support SEV-ES under OVMF:
- PcdGhcbBase: UINT64 value that is the base address of the GHCB
allocation.
- PcdGhcbSize: UINT64 value that is the size, in bytes, of the
GHCB allocation (size is dependent on the number of
APs).
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'MdeModulePkg/MdeModulePkg.dec')
| -rw-r--r-- | MdeModulePkg/MdeModulePkg.dec | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec index d7572eedd1..cb30a79758 100644 --- a/MdeModulePkg/MdeModulePkg.dec +++ b/MdeModulePkg/MdeModulePkg.dec @@ -2063,6 +2063,15 @@ # @Prompt If there is any test key used by the platform.
gEfiMdeModulePkgTokenSpaceGuid.PcdTestKeyUsed|FALSE|BOOLEAN|0x00030003
+ ## This dynamic PCD holds the base address of the Guest-Hypervisor Communication Block (GHCB) pool allocation.
+ # @Prompt GHCB Pool Base Address
+ gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbBase|0|UINT64|0x00030007
+
+ ## This dynamic PCD holds the total size of the Guest-Hypervisor Communication Block (GHCB) pool allocation.
+ # The amount of memory allocated for GHCBs is dependent on the number of APs.
+ # @Prompt GHCB Pool Size
+ gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbSize|0|UINT64|0x00030008
+
[PcdsDynamicEx]
## This dynamic PCD enables the default variable setting.
# Its value is the default store ID value. The default value is zero as Standard default.
|