Re: [PATCH v3 04/10] x86/fpu/xstate: Correct guest fpstate size calculation

["Chang S. Bae" <chang.seok.bae@xxxxxxxxx>]

On 3/7/2025 8:41 AM, Chao Gao wrote:
> diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c
> index 6166a928d3f5..adc34914634e 100644
> --- a/arch/x86/kernel/fpu/core.c
> +++ b/arch/x86/kernel/fpu/core.c
> @@ -218,7 +218,7 @@ bool fpu_alloc_guest_fpstate(struct fpu_guest *gfpu)
>   	struct fpstate *fpstate;
>   	unsigned int size;
>   
> -	size = fpu_user_cfg.default_size + ALIGN(offsetof(struct fpstate, regs), 64);
> +	size = fpu_kernel_cfg.default_size + ALIGN(offsetof(struct fpstate, regs), 64);
>   	fpstate = vzalloc(size);
>   	if (!fpstate)
>   		return false;

BTW, did you ever base this series on the tip/master branch? The fix has 
already been merged there:

  1937e18cc3cf ("x86/fpu: Fix guest FPU state buffer allocation size")

Thanks,
Chang