Messages in this thread | | | From | Thomas Gleixner <> | Subject | Re: ping Re: [PATCH v4 0/2] x86: Fix ARCH_REQ_XCOMP_PERM and update the test | Date | Wed, 23 Mar 2022 18:20:24 +0100 |
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On Wed, Mar 23 2022 at 18:07, Thomas Gleixner wrote: > On Wed, Mar 23 2022 at 15:24, Paolo Bonzini wrote: >> On 3/23/22 13:55, Thomas Gleixner wrote: >>> --- a/arch/x86/kernel/fpu/xstate.c >>> +++ b/arch/x86/kernel/fpu/xstate.c >>> @@ -1625,6 +1625,8 @@ static int __xstate_request_perm(u64 per >>> >>> /* Calculate the resulting kernel state size */ >>> mask = permitted | requested; >>> + /* Take supervisor states into account */ >>> + mask |= xfeatures_mask_supervisor(); >>> ksize = xstate_calculate_size(mask, compacted); >>> >> >> This should be only added in for the !guest case. > > Yes, I figured that out already :)
Hrm, that has more consequences vs. the buffer conversion functions. Let me stare some more.
Thanks,
tglx
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