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


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