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Commit bce66ca4 authored by Leonard Norrgard's avatar Leonard Norrgard Committed by Linus Torvalds
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[PATCH] KVM: SVM: Fix SVM idt confusion 



There's an obvious typo in svm_{get,set}_idt, causing it to access the ldt
instead.

Because these functions are only called for save/load on AMD, the bug does not
impact normal operation.  With the fix, save/load works as expected on AMD
hosts.

Signed-off-by: default avatarUri Lublin <uril@qumranet.com>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 4b89eed9

drivers/kvm/svm.c

+4 −4
Original line number Diff line number Diff line
@@ -680,14 +680,14 @@ static void svm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l) 


static void svm_get_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)

{

	dt->limit = vcpu->svm->vmcb->save.ldtr.limit;

	dt->base = vcpu->svm->vmcb->save.ldtr.base;

	dt->limit = vcpu->svm->vmcb->save.idtr.limit;

	dt->base = vcpu->svm->vmcb->save.idtr.base;

}



static void svm_set_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)

{

	vcpu->svm->vmcb->save.ldtr.limit = dt->limit;

	vcpu->svm->vmcb->save.ldtr.base = dt->base ;

	vcpu->svm->vmcb->save.idtr.limit = dt->limit;

	vcpu->svm->vmcb->save.idtr.base = dt->base ;

}



static void svm_get_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)