From: Leonard Norrgard <leonard.norrgard@refactor.fi>
Date: Fri, 26 Jan 2007 08:56:38 +0000 (-0800)
Subject: [PATCH] KVM: SVM: Fix SVM idt confusion
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bce66ca4a2f695509e1b021311eb4de1e4fdf3e4;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[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: Uri Lublin <uril@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index 7397bfbbcb1c..717aabb012cc 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -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)