[PATCH 26/42] KVM: SVM: don't copy exit_int_info on nested vmrun

Avi Kivity
2009-11-16T12:23:48Z

From: Joerg Roedel <joerg.roedel@amd.com>

The exit_int_info field is only written by the hardware and
never read. So it does not need to be copied on a vmrun
emulation.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---
arch/x86/kvm/svm.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 3f3fe81..41c996a 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1797,8 +1797,6 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
svm->nested.intercept = nested_vmcb->control.intercept;

force_new_asid(&svm->vcpu);
- svm->vmcb->control.exit_int_info = nested_vmcb->control.exit_int_info;
- svm->vmcb->control.exit_int_info_err = nested_vmcb->control.exit_int_info_err;
svm->vmcb->control.int_ctl = nested_vmcb->control.int_ctl | V_INTR_MASKING_MASK;
if (nested_vmcb->control.int_ctl & V_IRQ_MASK) {
nsvm_printk("nSVM Injecting Interrupt: 0x%x\n",
--
1.6.5.2