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| author | Pierre Gondois <pierre.gondois@arm.com> | 2022-10-28 17:32:51 +0200 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2022-11-06 16:32:28 +0000 |
| commit | aade3b93feddfb538e1f93207affb3f0d9cef5e8 (patch) | |
| tree | 4a711fe37739cd79a09edecbaec88cc0a719f09b /SecurityPkg | |
| parent | 8a89747844a5061791e55a25daedcf895180a794 (diff) | |
| download | edk2-aade3b93feddfb538e1f93207affb3f0d9cef5e8.tar.gz edk2-aade3b93feddfb538e1f93207affb3f0d9cef5e8.tar.bz2 edk2-aade3b93feddfb538e1f93207affb3f0d9cef5e8.zip | |
SecurityPkg/RngDxe: Replace Pcd with Sp80090Ctr256Guid
gEfiRngAlgorithmSp80090Ctr256Guid was used as the default algorithm
in RngGetRNG(). The commit below set the default algorithm to
PcdCpuRngSupportedAlgorithm, which is a zero GUID by default.
As the Pcd value is not defined for any platform in the edk2-platfoms
repository, assume it was an error and go back to the first version,
using gEfiRngAlgorithmSp80090Ctr256Guid.
Fixes: 4e5ecdbac8bd ("SecurityPkg: Add support for RngDxe on AARCH64")
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Acked-by: Jiewen Yao <jiewen.yao@intel.com>
Diffstat (limited to 'SecurityPkg')
| -rw-r--r-- | SecurityPkg/RandomNumberGenerator/RngDxe/Rand/RngDxe.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/SecurityPkg/RandomNumberGenerator/RngDxe/Rand/RngDxe.c b/SecurityPkg/RandomNumberGenerator/RngDxe/Rand/RngDxe.c index 8d44f0636c..df7db12b77 100644 --- a/SecurityPkg/RandomNumberGenerator/RngDxe/Rand/RngDxe.c +++ b/SecurityPkg/RandomNumberGenerator/RngDxe/Rand/RngDxe.c @@ -126,8 +126,7 @@ ArchGetSupportedRngAlgorithms ( OUT EFI_RNG_ALGORITHM *RNGAlgorithmList
)
{
- UINTN RequiredSize;
- EFI_RNG_ALGORITHM *CpuRngSupportedAlgorithm;
+ UINTN RequiredSize;
RequiredSize = 2 * sizeof (EFI_RNG_ALGORITHM);
@@ -136,9 +135,7 @@ ArchGetSupportedRngAlgorithms ( return EFI_BUFFER_TOO_SMALL;
}
- CpuRngSupportedAlgorithm = PcdGetPtr (PcdCpuRngSupportedAlgorithm);
-
- CopyMem (&RNGAlgorithmList[0], CpuRngSupportedAlgorithm, sizeof (EFI_RNG_ALGORITHM));
+ CopyMem (&RNGAlgorithmList[0], &gEfiRngAlgorithmSp80090Ctr256Guid, sizeof (EFI_RNG_ALGORITHM));
// x86 platforms also support EFI_RNG_ALGORITHM_RAW via RDSEED
CopyMem (&RNGAlgorithmList[1], &gEfiRngAlgorithmRaw, sizeof (EFI_RNG_ALGORITHM));
|