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| author | Jiewen Yao <jiewen.yao@intel.com> | 2018-01-04 10:37:42 +0800 |
|---|---|---|
| committer | Jiewen Yao <jiewen.yao@intel.com> | 2018-07-26 23:06:45 +0800 |
| commit | c4c7fb388e7f86fa98417a706bb495fb3c3c910b (patch) | |
| tree | 5c9e1f3f27c51726b4c8a5994c8e865d3867704f /UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/PageTbl.c | |
| parent | dcfd55d97a880b8fb8ace74892f960f3bd32852e (diff) | |
| download | edk2-c4c7fb388e7f86fa98417a706bb495fb3c3c910b.tar.gz edk2-c4c7fb388e7f86fa98417a706bb495fb3c3c910b.tar.bz2 edk2-c4c7fb388e7f86fa98417a706bb495fb3c3c910b.zip | |
UefiCpuPkg/PiSmmCpu: Check GCD and UEFI mem attrib table.
1) UefiCpuPkg/PiSmmCpu: Check for untested memory in GCD
It treats GCD untested memory as invalid SMM
communication buffer.
2) UefiCpuPkg/PiSmmCpu: Check EFI_RUNTIME_RO in UEFI mem attrib table.
It treats the UEFI runtime page with EFI_MEMORY_RO attribute as
invalid SMM communication buffer.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Diffstat (limited to 'UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/PageTbl.c')
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/PageTbl.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/PageTbl.c b/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/PageTbl.c index 32ce5958c5..062b51b2e4 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/PageTbl.c +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/PageTbl.c @@ -16,6 +16,8 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #include "PiSmmCpuDxeSmm.h"
+UINT8 mPhysicalAddressBits = 32;
+
/**
Create PageTable for SMM use.
|