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Subject[PATCH v2 3/4] kvm: cpuid: fix xsave area size of XSAVEC
Date
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>
---
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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