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

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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>
This commit is contained in:
Gleb Natapov
2011-03-07 14:55:06 +02:00
committed by Marcelo Tosatti
parent 831ca6093c
commit 5601d05b8c
3 changed files with 35 additions and 21 deletions
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4
arch/x86/include/asm/kvm_emulate.h
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@ -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);