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    Subject[PATCH v2 01/16] KVM: MMU: cleanup __direct_map
    Use link_shadow_page to link the sp to the spte in __direct_map

    Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
    ---
    arch/x86/kvm/mmu.c | 12 ++++--------
    1 files changed, 4 insertions(+), 8 deletions(-)

    diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
    index 29ad6f9..151fcddc 100644
    --- a/arch/x86/kvm/mmu.c
    +++ b/arch/x86/kvm/mmu.c
    @@ -1850,9 +1850,9 @@ static void link_shadow_page(u64 *sptep, struct kvm_mmu_page *sp)
    {
    u64 spte;

    - spte = __pa(sp->spt)
    - | PT_PRESENT_MASK | PT_ACCESSED_MASK
    - | PT_WRITABLE_MASK | PT_USER_MASK;
    + spte = __pa(sp->spt) | PT_PRESENT_MASK | PT_WRITABLE_MASK |
    + shadow_user_mask | shadow_x_mask | shadow_accessed_mask;
    +
    mmu_spte_set(sptep, spte);
    }

    @@ -2541,11 +2541,7 @@ static int __direct_map(struct kvm_vcpu *vcpu, gpa_t v, int write,
    return -ENOMEM;
    }

    - mmu_spte_set(iterator.sptep,
    - __pa(sp->spt)
    - | PT_PRESENT_MASK | PT_WRITABLE_MASK
    - | shadow_user_mask | shadow_x_mask
    - | shadow_accessed_mask);
    + link_shadow_page(iterator.sptep, sp);
    }
    }
    return emulate;
    --
    1.7.7.6


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