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    Subject[PATCH 5/8] MMU: make the __nonpaging_map function generic
    Date
    The mapping function for the nonpaging case in the softmmu does basically the
    same as required for Nested Paging. Make this function generic so it can be
    used for both.

    Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
    ---
    arch/x86/kvm/mmu.c | 7 +++----
    1 files changed, 3 insertions(+), 4 deletions(-)

    diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
    index 635e70c..dfbcf5e 100644
    --- a/arch/x86/kvm/mmu.c
    +++ b/arch/x86/kvm/mmu.c
    @@ -956,10 +956,9 @@ static void nonpaging_new_cr3(struct kvm_vcpu *vcpu)
    {
    }

    -static int __nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write,
    - gfn_t gfn, struct page *page)
    +static int __direct_map(struct kvm_vcpu *vcpu, gpa_t v, int write,
    + gfn_t gfn, struct page *page, int level)
    {
    - int level = PT32E_ROOT_LEVEL;
    hpa_t table_addr = vcpu->arch.mmu.root_hpa;
    int pt_write = 0;

    @@ -1017,7 +1016,7 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)

    spin_lock(&vcpu->kvm->mmu_lock);
    kvm_mmu_free_some_pages(vcpu);
    - r = __nonpaging_map(vcpu, v, write, gfn, page);
    + r = __direct_map(vcpu, v, write, gfn, page, PT32E_ROOT_LEVEL);
    spin_unlock(&vcpu->kvm->mmu_lock);

    up_read(&current->mm->mmap_sem);
    --
    1.5.3.7




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