On Mon, Mar 21, 2022 at 2:56 PM H.J. Lu <hjl.to...@gmail.com> wrote:
>
> 1. Pass 0x19 to __cpuid for bit_AESKLE.
> 2. Enable FEATURE_AESKLE only if bit_AESKLE is set.
>
> PR target/104998
> * common/config/i386/cpuinfo.h (get_available_features): Pass
> 0x19 to __cpuid for bit_AESKLE. Enable FEATURE_AESKLE only if
> bit_AESKLE is set.
LGTM.
Thanks,
Uros.
> ---
> gcc/common/config/i386/cpuinfo.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/gcc/common/config/i386/cpuinfo.h
> b/gcc/common/config/i386/cpuinfo.h
> index 61b1a0f291c..239759dc766 100644
> --- a/gcc/common/config/i386/cpuinfo.h
> +++ b/gcc/common/config/i386/cpuinfo.h
> @@ -779,11 +779,11 @@ get_available_features (struct __processor_model
> *cpu_model,
> /* Get Advanced Features at level 0x19 (eax = 0x19). */
> if (max_cpuid_level >= 0x19)
> {
> - set_feature (FEATURE_AESKLE);
> - __cpuid (19, eax, ebx, ecx, edx);
> + __cpuid (0x19, eax, ebx, ecx, edx);
> /* Check if OS support keylocker. */
> if (ebx & bit_AESKLE)
> {
> + set_feature (FEATURE_AESKLE);
> if (ebx & bit_WIDEKL)
> set_feature (FEATURE_WIDEKL);
> if (has_kl)
> --
> 2.35.1
>
