mirror of https://github.com/acidanthera/audk.git
4b3e9d80be
RngGetBytes() relies on the RngLib. The RngLib might use the RNDR instruction if the FEAT_RNG feature is present. RngGetInfo and RngGetRNG both must check that RngGetBytes() is working before advertising/using it. To do so, allocate an array storing the available algorithms. The Rng algorithm at the lowest index will be the default Rng algorithm. The array is shared between RngGetInfo and RngGetRNG. This array is allocated when the driver is loaded, and freed when unloaded. This patch also prevents from having PcdCpuRngSupportedAlgorithm let to a zero GUID, but let the possibility to have no valid Rng algorithm in such case. Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com> Acked-by: Jiewen Yao <jiewen.yao@intel.com> |
||
|---|---|---|
| .. | ||
| AesCore.c | ||
| AesCore.h | ||
| RdRand.c | ||
| RngDxe.c | ||