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| author | Pierre Gondois <pierre.gondois@arm.com> | 2022-10-28 17:32:56 +0200 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2022-11-06 16:32:28 +0000 |
| commit | 6cdddccf0085cf2929f8ae710515e4e53663dfb2 (patch) | |
| tree | e87ee064d46ed9170abefd7258538f2e9b545066 /SecurityPkg | |
| parent | 863fe9e191fb3d90c3283062183692c04cd71975 (diff) | |
| download | edk2-6cdddccf0085cf2929f8ae710515e4e53663dfb2.tar.gz edk2-6cdddccf0085cf2929f8ae710515e4e53663dfb2.tar.bz2 edk2-6cdddccf0085cf2929f8ae710515e4e53663dfb2.zip | |
SecurityPkg/RngDxe: Add debug warning for NULL PcdCpuRngSupportedAlgorithm
PcdCpuRngSupportedAlgorithm should allow to identify the the algorithm
used by the RNDR CPU instruction to generate a random number.
Add a debug warning if the Pcd is not set.
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/AArch64/RngDxe.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/RngDxe.c b/SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/RngDxe.c index ceddc8f08a..318876d693 100644 --- a/SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/RngDxe.c +++ b/SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/RngDxe.c @@ -67,6 +67,16 @@ GetAvailableAlgorithms ( sizeof (EFI_RNG_ALGORITHM)
);
mAvailableAlgoArrayCount++;
+
+ DEBUG_CODE_BEGIN ();
+ if (IsZeroGuid (PcdGetPtr (PcdCpuRngSupportedAlgorithm))) {
+ DEBUG ((
+ DEBUG_WARN,
+ "PcdCpuRngSupportedAlgorithm should be a non-zero GUID\n"
+ ));
+ }
+
+ DEBUG_CODE_END ();
}
// Raw algorithm (Trng)
|