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    Subject[PATCH 26/47] KVM: SVM: remove nested_svm_do and helper functions
    Date
    From: Joerg Roedel <joerg.roedel@amd.com>

    This function is not longer required. So remove it.

    Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
    Signed-off-by: Avi Kivity <avi@redhat.com>
    ---
    arch/x86/kvm/svm.c | 60 ----------------------------------------------------
    1 files changed, 0 insertions(+), 60 deletions(-)

    diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
    index 1a915f3..42b8b67 100644
    --- a/arch/x86/kvm/svm.c
    +++ b/arch/x86/kvm/svm.c
    @@ -1421,66 +1421,6 @@ static void nested_svm_unmap(void *addr, enum km_type idx)
    kvm_release_page_dirty(page);
    }

    -static struct page *nested_svm_get_page(struct vcpu_svm *svm, u64 gpa)
    -{
    - struct page *page;
    -
    - down_read(&current->mm->mmap_sem);
    - page = gfn_to_page(svm->vcpu.kvm, gpa >> PAGE_SHIFT);
    - up_read(&current->mm->mmap_sem);
    -
    - if (is_error_page(page)) {
    - printk(KERN_INFO "%s: could not find page at 0x%llx\n",
    - __func__, gpa);
    - kvm_release_page_clean(page);
    - kvm_inject_gp(&svm->vcpu, 0);
    - return NULL;
    - }
    - return page;
    -}
    -
    -static int nested_svm_do(struct vcpu_svm *svm,
    - u64 arg1_gpa, u64 arg2_gpa, void *opaque,
    - int (*handler)(struct vcpu_svm *svm,
    - void *arg1,
    - void *arg2,
    - void *opaque))
    -{
    - struct page *arg1_page;
    - struct page *arg2_page = NULL;
    - void *arg1;
    - void *arg2 = NULL;
    - int retval;
    -
    - arg1_page = nested_svm_get_page(svm, arg1_gpa);
    - if(arg1_page == NULL)
    - return 1;
    -
    - if (arg2_gpa) {
    - arg2_page = nested_svm_get_page(svm, arg2_gpa);
    - if(arg2_page == NULL) {
    - kvm_release_page_clean(arg1_page);
    - return 1;
    - }
    - }
    -
    - arg1 = kmap_atomic(arg1_page, KM_USER0);
    - if (arg2_gpa)
    - arg2 = kmap_atomic(arg2_page, KM_USER1);
    -
    - retval = handler(svm, arg1, arg2, opaque);
    -
    - kunmap_atomic(arg1, KM_USER0);
    - if (arg2_gpa)
    - kunmap_atomic(arg2, KM_USER1);
    -
    - kvm_release_page_dirty(arg1_page);
    - if (arg2_gpa)
    - kvm_release_page_dirty(arg2_page);
    -
    - return retval;
    -}
    -
    static bool nested_svm_exit_handled_msr(struct vcpu_svm *svm)
    {
    u32 param = svm->vmcb->control.exit_info_1 & 1;
    --
    1.6.4.1


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