Messages in this thread Patch in this message | | | From | Wanpeng Li <> | Subject | [PATCH 3/4] kvm: cpuid: fix xsave area size of XSAVEC | Date | Thu, 4 Dec 2014 16:24:27 +0800 |
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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.
Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com> --- 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 70f0fa1..e16a0c7 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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