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| author | Tom Lendacky <thomas.lendacky@amd.com> | 2020-08-12 15:21:35 -0500 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-08-16 16:45:42 +0000 |
| commit | b098f5e9e90537524929f7917f28bb9472b5eb59 (patch) | |
| tree | 1f51585937ea0e2a3c818a786205e6345af6f032 /MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf | |
| parent | 1c0eb9150374cc2017a80239f0a788aecb632068 (diff) | |
| download | edk2-b098f5e9e90537524929f7917f28bb9472b5eb59.tar.gz edk2-b098f5e9e90537524929f7917f28bb9472b5eb59.tar.bz2 edk2-b098f5e9e90537524929f7917f28bb9472b5eb59.zip | |
MdeModulePkg/DxeIplPeim: Support GHCB pages when creating page tables
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198
GHCB pages must be mapped as shared pages, so modify the process of
creating identity mapped pagetable entries so that GHCB entries are
created without the encryption bit set. The GHCB range consists of
two pages per CPU, the first being the GHCB and the second being a
per-CPU variable page. Only the GHCB page is mapped as shared.
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Acked-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/Core/DxeIplPeim/DxeIpl.inf')
| -rw-r--r-- | MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf index 3f17028546..19b8a4c8ae 100644 --- a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf +++ b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf @@ -115,6 +115,8 @@ gEfiMdeModulePkgTokenSpaceGuid.PcdHeapGuardPropertyMask ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdCpuStackGuard ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdUse5LevelPageTable ## SOMETIMES_CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbBase ## CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbSize ## CONSUMES
[Pcd.IA32,Pcd.X64,Pcd.ARM,Pcd.AARCH64]
gEfiMdeModulePkgTokenSpaceGuid.PcdSetNxForStack ## SOMETIMES_CONSUMES
|