Messages in this thread | | | Date | Thu, 4 Dec 2014 14:19:20 +0100 | From | Radim Krčmář <> | Subject | Re: [PATCH v2 3/4] kvm: cpuid: fix xsave area size of XSAVEC |
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2014-12-04 19:11+0800, Wanpeng Li: > XSAVEC also use the compacted format for the extended region > of the XSAVE area. This patch fix it by caculate the size of > XSAVEC extended region of XSAVE area as compact format.
(I'll believe as it makes sense, but SDM could mention that.)
> Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com> > ---
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
(Nested part later.)
> v1 -> v2: > * use | (bitwise or) instead of II (logical or) > > arch/x86/kvm/cpuid.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c > index 5b78e9b..7d5bdb4 100644 > --- a/arch/x86/kvm/cpuid.c > +++ b/arch/x86/kvm/cpuid.c > @@ -92,7 +92,7 @@ int kvm_update_cpuid(struct kvm_vcpu *vcpu) > } > > best = kvm_find_cpuid_entry(vcpu, 0xD, 1); > - if (best && (best->eax & F(XSAVES))) > + if (best && (best->eax & (F(XSAVES) | F(XSAVEC)))) > best->ebx = xstate_required_size(vcpu->arch.xcr0, true); > > /* > -- > 1.9.1 >
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