- patches.apparmor/remove_suid_new_case_in_2.6.22.diff: Merge fix.

[linux-flexiantxendom0-3.2.10.git] / drivers / kvm / paging_tmpl.h

diff --git a/drivers/kvm/paging_tmpl.h b/drivers/kvm/paging_tmpl.h
index f3bcee9..73ffbff 100644 (file)
--- a/drivers/kvm/paging_tmpl.h
+++ b/drivers/kvm/paging_tmpl.h
@@ -148,8 +148,7 @@ static int FNAME(walk_addr)(struct guest_walker *walker,
                        break;
                }
 
-               if (walker->level != 3 || is_long_mode(vcpu))
-                       walker->inherited_ar &= walker->table[index];
+               walker->inherited_ar &= walker->table[index];
                table_gfn = (*ptep & PT_BASE_ADDR_MASK) >> PAGE_SHIFT;
                paddr = safe_gpa_to_hpa(vcpu, *ptep & PT_BASE_ADDR_MASK);
                kunmap_atomic(walker->table, KM_USER0);
@@ -248,6 +247,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
                u64 shadow_pte;
                int metaphysical;
                gfn_t table_gfn;
+               unsigned hugepage_access = 0;
 
                if (is_present_pte(*shadow_ent) || is_io_pte(*shadow_ent)) {
                        if (level == PT_PAGE_TABLE_LEVEL)
@@ -277,6 +277,9 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
                if (level - 1 == PT_PAGE_TABLE_LEVEL
                    && walker->level == PT_DIRECTORY_LEVEL) {
                        metaphysical = 1;
+                       hugepage_access = *guest_ent;
+                       hugepage_access &= PT_USER_MASK | PT_WRITABLE_MASK;
+                       hugepage_access >>= PT_WRITABLE_SHIFT;
                        table_gfn = (*guest_ent & PT_BASE_ADDR_MASK)
                                >> PAGE_SHIFT;
                } else {
@@ -284,7 +287,8 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
                        table_gfn = walker->table_gfn[level - 2];
                }
                shadow_page = kvm_mmu_get_page(vcpu, table_gfn, addr, level-1,
-                                              metaphysical, shadow_ent);
+                                              metaphysical, hugepage_access,
+                                              shadow_ent);
                shadow_addr = shadow_page->page_hpa;
                shadow_pte = shadow_addr | PT_PRESENT_MASK | PT_ACCESSED_MASK
                        | PT_WRITABLE_MASK | PT_USER_MASK;
@@ -444,7 +448,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
        if (is_io_pte(*shadow_pte))
                return 1;
 
-       ++kvm_stat.pf_fixed;
+       ++vcpu->stat.pf_fixed;
        kvm_mmu_audit(vcpu, "post page fault (fixed)");
 
        return write_pt;