From: Joerg Roedel <joro@xxxxxxxxxx>
Reorder the function a little bit to move interrupt related
code together and the tlb-flush from the middle of the
function towards the end.
Signed-off-by: Joerg Roedel <joro@xxxxxxxxxx>
---
arch/x86/kvm/svm.c | 31 ++++++++++++++++---------------
1 files changed, 16 insertions(+), 15 deletions(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index dc703ac..f81e35e 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -2411,6 +2411,20 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
else
svm->vcpu.arch.hflags &= ~HF_HIF_MASK;
+ if (nested_vmcb->control.int_ctl & V_INTR_MASKING_MASK)
+ svm->vcpu.arch.hflags |= HF_VINTR_MASK;
+ else
+ svm->vcpu.arch.hflags &= ~HF_VINTR_MASK;
+
+ if (svm->vcpu.arch.hflags & HF_VINTR_MASK) {
+ /* We only want the cr8 intercept bits of the guest */
+ clr_cr_intercept(svm, INTERCEPT_CR8_READ);
+ clr_cr_intercept(svm, INTERCEPT_CR8_WRITE);
+ }
+
+ /* We don't want to see VMMCALLs from a nested guest */
+ clr_intercept(svm, INTERCEPT_VMMCALL);
+
if (nested_vmcb->control.nested_ctl) {
kvm_mmu_unload(&svm->vcpu);
svm->nested.nested_cr3 = nested_vmcb->control.nested_cr3;
@@ -2459,22 +2473,7 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
svm->nested.intercept_exceptions = nested_vmcb->control.intercept_exceptions;
svm->nested.intercept = nested_vmcb->control.intercept;
- svm_flush_tlb(&svm->vcpu);
svm->vmcb->control.int_ctl = nested_vmcb->control.int_ctl | V_INTR_MASKING_MASK;
- if (nested_vmcb->control.int_ctl & V_INTR_MASKING_MASK)
- svm->vcpu.arch.hflags |= HF_VINTR_MASK;
- else
- svm->vcpu.arch.hflags &= ~HF_VINTR_MASK;
-
- if (svm->vcpu.arch.hflags & HF_VINTR_MASK) {
- /* We only want the cr8 intercept bits of the guest */
- clr_cr_intercept(svm, INTERCEPT_CR8_READ);
- clr_cr_intercept(svm, INTERCEPT_CR8_WRITE);
- }
-
- /* We don't want to see VMMCALLs from a nested guest */
- clr_intercept(svm, INTERCEPT_VMMCALL);
-
svm->vmcb->control.lbr_ctl = nested_vmcb->control.lbr_ctl;
svm->vmcb->control.int_vector = nested_vmcb->control.int_vector;
svm->vmcb->control.int_state = nested_vmcb->control.int_state;
@@ -2484,6 +2483,8 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
nested_svm_unmap(page);
+ svm_flush_tlb(&svm->vcpu);
+
/* Enter Guest-Mode */
enter_guest_mode(&svm->vcpu);
--
1.7.4.1
--
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