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-rw-r--r--drivers/kvm/kvm.h1
-rw-r--r--drivers/kvm/mmu.c21
2 files changed, 3 insertions, 19 deletions
diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
index 31315bcf09c3..1fd8158ced89 100644
--- a/drivers/kvm/kvm.h
+++ b/drivers/kvm/kvm.h
@@ -375,7 +375,6 @@ int kvm_init(void *opaque, unsigned int vcpu_size,
375 struct module *module); 375 struct module *module);
376void kvm_exit(void); 376void kvm_exit(void);
377 377
378hpa_t gpa_to_hpa(struct kvm *kvm, gpa_t gpa);
379#define HPA_MSB ((sizeof(hpa_t) * 8) - 1) 378#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
380#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) 379#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
381static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } 380static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c
index 6aa0319ede4d..9b75b102b8d1 100644
--- a/drivers/kvm/mmu.c
+++ b/drivers/kvm/mmu.c
@@ -868,26 +868,13 @@ static void page_header_update_slot(struct kvm *kvm, void *pte, gfn_t gfn)
868 __set_bit(slot, &page_head->slot_bitmap); 868 __set_bit(slot, &page_head->slot_bitmap);
869} 869}
870 870
871hpa_t gpa_to_hpa(struct kvm *kvm, gpa_t gpa)
872{
873 struct page *page;
874 hpa_t hpa;
875
876 ASSERT((gpa & HPA_ERR_MASK) == 0);
877 page = gfn_to_page(kvm, gpa >> PAGE_SHIFT);
878 hpa = ((hpa_t)page_to_pfn(page) << PAGE_SHIFT) | (gpa & (PAGE_SIZE-1));
879 if (is_error_page(page))
880 return hpa | HPA_ERR_MASK;
881 return hpa;
882}
883
884struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva) 871struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva)
885{ 872{
886 gpa_t gpa = vcpu->mmu.gva_to_gpa(vcpu, gva); 873 gpa_t gpa = vcpu->mmu.gva_to_gpa(vcpu, gva);
887 874
888 if (gpa == UNMAPPED_GVA) 875 if (gpa == UNMAPPED_GVA)
889 return NULL; 876 return NULL;
890 return pfn_to_page(gpa_to_hpa(vcpu->kvm, gpa) >> PAGE_SHIFT); 877 return gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
891} 878}
892 879
893static void nonpaging_new_cr3(struct kvm_vcpu *vcpu) 880static void nonpaging_new_cr3(struct kvm_vcpu *vcpu)
@@ -1611,8 +1598,8 @@ static void audit_mappings_page(struct kvm_vcpu *vcpu, u64 page_pte,
1611 audit_mappings_page(vcpu, ent, va, level - 1); 1598 audit_mappings_page(vcpu, ent, va, level - 1);
1612 } else { 1599 } else {
1613 gpa_t gpa = vcpu->mmu.gva_to_gpa(vcpu, va); 1600 gpa_t gpa = vcpu->mmu.gva_to_gpa(vcpu, va);
1614 hpa_t hpa = gpa_to_hpa(vcpu, gpa); 1601 struct page *page = gpa_to_page(vcpu, gpa);
1615 struct page *page; 1602 hpa_t hpa = page_to_phys(page);
1616 1603
1617 if (is_shadow_present_pte(ent) 1604 if (is_shadow_present_pte(ent)
1618 && (ent & PT64_BASE_ADDR_MASK) != hpa) 1605 && (ent & PT64_BASE_ADDR_MASK) != hpa)
@@ -1625,8 +1612,6 @@ static void audit_mappings_page(struct kvm_vcpu *vcpu, u64 page_pte,
1625 && !is_error_hpa(hpa)) 1612 && !is_error_hpa(hpa))
1626 printk(KERN_ERR "audit: (%s) notrap shadow," 1613 printk(KERN_ERR "audit: (%s) notrap shadow,"
1627 " valid guest gva %lx\n", audit_msg, va); 1614 " valid guest gva %lx\n", audit_msg, va);
1628 page = pfn_to_page((gpa & PT64_BASE_ADDR_MASK)
1629 >> PAGE_SHIFT);
1630 kvm_release_page_clean(page); 1615 kvm_release_page_clean(page);
1631 1616
1632 } 1617 }