Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (66 commits)
  KVM: Remove unused 'instruction_length'
  KVM: Don't require explicit indication of completion of mmio or pio
  KVM: Remove extraneous guest entry on mmio read
  KVM: SVM: Only save/restore MSRs when needed
  KVM: fix an if() condition
  KVM: VMX: Add lazy FPU support for VT
  KVM: VMX: Properly shadow the CR0 register in the vcpu struct
  KVM: Don't complain about cpu erratum AA15
  KVM: Lazy FPU support for SVM
  KVM: Allow passing 64-bit values to the emulated read/write API
  KVM: Per-vcpu statistics
  KVM: VMX: Avoid unnecessary vcpu_load()/vcpu_put() cycles
  KVM: MMU: Avoid heavy ASSERT at non debug mode.
  KVM: VMX: Only save/restore MSR_K6_STAR if necessary
  KVM: Fold drivers/kvm/kvm_vmx.h into drivers/kvm/vmx.c
  KVM: VMX: Don't switch 64-bit msrs for 32-bit guests
  KVM: VMX: Reduce unnecessary saving of host msrs
  KVM: Handle guest page faults when emulating mmio
  KVM: SVM: Report hardware exit reason to userspace instead of dmesg
  KVM: Retry sleeping allocation if atomic allocation fails
  ...

1 files changed, 8 insertions, 4 deletions

diff --git a/drivers/kvm/paging_tmpl.h b/drivers/kvm/paging_tmpl.h
index f3bcee90465..73ffbffb109 100644
--- 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;