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| author | Ray Ni <ray.ni@intel.com> | 2022-07-14 15:36:09 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2022-08-09 07:08:05 +0000 |
| commit | f336e30ba14f182836919a7662134ac28ded983a (patch) | |
| tree | b3d74439c6d2cd38215bbfb63734adedbd78dfdf /UefiCpuPkg | |
| parent | 75e3c2435c7f10675d075ae7e5d4e9dea7331bcf (diff) | |
| download | edk2-f336e30ba14f182836919a7662134ac28ded983a.tar.gz edk2-f336e30ba14f182836919a7662134ac28ded983a.tar.bz2 edk2-f336e30ba14f182836919a7662134ac28ded983a.zip | |
UefiCpuPkg/CpuPageTableLib: Return error on invalid parameters
When LinearAddress or Length is not aligned on 4KB, PageTableMap()
should return Invalid Parameter.
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Diffstat (limited to 'UefiCpuPkg')
| -rw-r--r-- | UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableMap.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableMap.c b/UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableMap.c index f75c6657ad..a0e1309462 100644 --- a/UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableMap.c +++ b/UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableMap.c @@ -467,6 +467,13 @@ PageTableMap ( return RETURN_INVALID_PARAMETER;
}
+ if ((LinearAddress % SIZE_4KB != 0) || (Length % SIZE_4KB != 0)) {
+ //
+ // LinearAddress and Length should be multiple of 4K.
+ //
+ return RETURN_INVALID_PARAMETER;
+ }
+
if ((*BufferSize != 0) && (Buffer == NULL)) {
return RETURN_INVALID_PARAMETER;
}
|