| Subject | Re: [PATCH v4 07/10] x86/xsaves: Fix PTRACE frames for XSAVES | From | Dave Hansen <> | Date | Fri, 29 Apr 2016 13:16:59 -0700 |
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On 03/04/2016 10:12 AM, Yu-cheng Yu wrote: > + if (boot_cpu_has(X86_FEATURE_XSAVES)) { > + ret = copyout_from_xsaves(pos, count, kbuf, ubuf, xsave);
On a higher level, we really should stop using "boot_cpu_has(X86_FEATURE_XSAVES)" as a proxy for "the kernel XSAVE buffer is in the XSAVES format". I think our use of the _hardware_ CPUID bit is confusing at least the KVM folks.
We probably want a software X86_FEATURE_OS_XSAVES or something.
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