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KVM: VMX: Adjust rflags if in real mode emulation

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We set rflags.vm86 when virtualizing real mode to do through vm8086 mode;
so we need to take it out again when reading rflags.

Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2009-08-12 15:29:37 +03:00
parent 6621fbc2c6
commit 345dcaa8fd
1 changed files with 6 additions and 1 deletions
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7
arch/x86/kvm/vmx.c
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@ -781,7 +781,12 @@ static void vmx_fpu_deactivate(struct kvm_vcpu *vcpu)
static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu) static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)
{ {
return vmcs_readl(GUEST_RFLAGS); unsigned long rflags;
rflags = vmcs_readl(GUEST_RFLAGS);
if (to_vmx(vcpu)->rmode.vm86_active)
rflags &= ~(unsigned long)(X86_EFLAGS_IOPL | X86_EFLAGS_VM);
return rflags;
} }
static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags) static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)