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    Subject[PATCH 06/12] KVM: SVM: Add clean-bit for NPT state
    Date
    This patch implements the clean-bit for all nested paging
    related state in the vmcb.

    Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
    ---
    arch/x86/kvm/svm.c | 3 +++
    1 files changed, 3 insertions(+), 0 deletions(-)
    diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
    index b81d31a..3b5d894 100644
    --- a/arch/x86/kvm/svm.c
    +++ b/arch/x86/kvm/svm.c
    @@ -191,6 +191,7 @@ enum {
    VMCB_PERM_MAP, /* IOPM Base and MSRPM Base */
    VMCB_ASID, /* ASID */
    VMCB_INTR, /* int_ctl, int_vector */
    + VMCB_NPT, /* npt_en, nCR3, gPAT */
    VMCB_DIRTY_MAX,
    };

    @@ -1749,6 +1750,7 @@ static void nested_svm_set_tdp_cr3(struct kvm_vcpu *vcpu,
    struct vcpu_svm *svm = to_svm(vcpu);

    svm->vmcb->control.nested_cr3 = root;
    + mark_dirty(svm->vmcb, VMCB_NPT);
    force_new_asid(vcpu);
    }

    @@ -3552,6 +3554,7 @@ static void set_tdp_cr3(struct kvm_vcpu *vcpu, unsigned long root)
    struct vcpu_svm *svm = to_svm(vcpu);

    svm->vmcb->control.nested_cr3 = root;
    + mark_dirty(svm->vmcb, VMCB_NPT);

    /* Also sync guest cr3 here in case we live migrate */
    svm->vmcb->save.cr3 = vcpu->arch.cr3;
    --
    1.7.1



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