Re: [patch 08/41] x86/fpu: Restrict fpstate sanitizing to legacy components

[Thomas Gleixner]

On Fri, Jun 11 2021 at 12:03, Andy Lutomirski wrote:
> On 6/11/21 9:15 AM, Thomas Gleixner wrote:
>> xstateregs_get() does not longer use fpstate_sanitize_xstate() and the only
>> +/*
>> + * When executing XSAVEOPT (or other optimized XSAVE instructions), if
>
> The kernel doesn't use XSAVEOPT any more.  How about:

You sure? 

#define XSTATE_XSAVE(st, lmask, hmask, err)				\
	asm volatile(ALTERNATIVE_2(XSAVE,				\
				   XSAVEOPT, X86_FEATURE_XSAVEOPT,	\
				   XSAVES,   X86_FEATURE_XSAVES)	\
Thanks,

        tglx