Re: [PATCH] target/i386: Fix wrong XSAVE feature names

[Yang Zhong]

In fact, one month ago, I have sent out V2 for this issue. thanks!
https://lists.nongnu.org/archive/html/qemu-devel/2022-10/msg04825.html

Yang


On Wed, Dec 07, 2022 at 09:47:47PM -0500, Xiaocheng Dong wrote:
> The previous patch changes the name from FEAT_XSAVE_COMP_{LO|HI}
> to FEAT_XSAVE_XCR0_{LO|HI}, the changes for CPUID.0x12.0x1 should be
> FEAT_XSAVE_XCR0_{LO|HI}, the SGX can't work in VM if these are not right
> 
> Fixes: 301e90675c3f ("target/i386: Enable support for XSAVES based features")
> 
> Signed-off-by: Xiaocheng Dong <xiaocheng.dong@intel.com>
> ---
>  target/i386/cpu.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/target/i386/cpu.c b/target/i386/cpu.c
> index 22b681ca37..0f71ff9fea 100644
> --- a/target/i386/cpu.c
> +++ b/target/i386/cpu.c
> @@ -5584,8 +5584,8 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, 
> uint32_t count,
>          } else {
>              *eax &= env->features[FEAT_SGX_12_1_EAX];
>              *ebx &= 0; /* ebx reserve */
> -            *ecx &= env->features[FEAT_XSAVE_XSS_LO];
> -            *edx &= env->features[FEAT_XSAVE_XSS_HI];
> +            *ecx &= env->features[FEAT_XSAVE_XCR0_LO];
> +            *edx &= env->features[FEAT_XSAVE_XCR0_HI];
>  
>              /* FP and SSE are always allowed regardless of XSAVE/XCR0. */
>              *ecx |= XSTATE_FP_MASK | XSTATE_SSE_MASK;
> -- 
> 2.31.1
> 
>