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    Subject[PATCH 12/12] KVM: X86: Walk shadow page starting with shadow_root_level
    Date
    From: Lai Jiangshan <laijs@linux.alibaba.com>

    Walking from the root page of the shadow page table should start with
    the level of the shadow page table: shadow_root_level.

    Also change a small defect in audit_mappings(), it is believed
    that the current walking level is more valuable to print.

    Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
    ---
    arch/x86/kvm/mmu/mmu_audit.c | 5 ++---
    1 file changed, 2 insertions(+), 3 deletions(-)

    diff --git a/arch/x86/kvm/mmu/mmu_audit.c b/arch/x86/kvm/mmu/mmu_audit.c
    index 9e7dcf999f08..6bbbf85b3e46 100644
    --- a/arch/x86/kvm/mmu/mmu_audit.c
    +++ b/arch/x86/kvm/mmu/mmu_audit.c
    @@ -63,7 +63,7 @@ static void mmu_spte_walk(struct kvm_vcpu *vcpu, inspect_spte_fn fn)
    hpa_t root = vcpu->arch.mmu->root_hpa;

    sp = to_shadow_page(root);
    - __mmu_spte_walk(vcpu, sp, fn, vcpu->arch.mmu->root_level);
    + __mmu_spte_walk(vcpu, sp, fn, vcpu->arch.mmu->shadow_root_level);
    return;
    }

    @@ -119,8 +119,7 @@ static void audit_mappings(struct kvm_vcpu *vcpu, u64 *sptep, int level)
    hpa = pfn << PAGE_SHIFT;
    if ((*sptep & PT64_BASE_ADDR_MASK) != hpa)
    audit_printk(vcpu->kvm, "levels %d pfn %llx hpa %llx "
    - "ent %llxn", vcpu->arch.mmu->root_level, pfn,
    - hpa, *sptep);
    + "ent %llxn", level, pfn, hpa, *sptep);
    }

    static void inspect_spte_has_rmap(struct kvm *kvm, u64 *sptep)
    --
    2.19.1.6.gb485710b
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