KVM: emulator: Fix io permission checking for 64bit guest

Current implementation truncates upper 32bit of TR base address during IO
permission bitmap check. The patch fixes this.

Reported-and-tested-by: Francis Moreau <francis.moro@gmail.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 50ebc327a368..0f5213564326 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -142,9 +142,9 @@ struct x86_emulate_ops {
         int (*pio_out_emulated)(int size, unsigned short port, const void *val,
                                 unsigned int count, struct kvm_vcpu *vcpu);
 
-        bool (*get_cached_descriptor)(struct desc_struct *desc,
+        bool (*get_cached_descriptor)(struct desc_struct *desc, u32 *base3,
                                       int seg, struct kvm_vcpu *vcpu);
-        void (*set_cached_descriptor)(struct desc_struct *desc,
+        void (*set_cached_descriptor)(struct desc_struct *desc, u32 base3,
                                       int seg, struct kvm_vcpu *vcpu);
         u16 (*get_segment_selector)(int seg, struct kvm_vcpu *vcpu);
         void (*set_segment_selector)(u16 sel, int seg, struct kvm_vcpu *vcpu);