Merge branch 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm

* 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
  KVM: MMU: avoid creation of unreachable pages in the shadow
  KVM: ppc: stop leaking host memory on VM exit
  KVM: MMU: fix sync of ptes addressed at owner pagetable
  KVM: ia64: Fix: Use correct calling convention for PAL_VPS_RESUME_HANDLER
  KVM: ia64: Fix incorrect kbuild CFLAGS override
  KVM: VMX: Fix interrupt loss during race with NMI
  KVM: s390: Fix problem state handling in guest sigp handler

3 files changed, 5 insertions, 2 deletions

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index f1983d9477cd..410ddbc1aa2e 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1038,13 +1038,13 @@ static int kvm_sync_page(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp)
         }
 
         rmap_write_protect(vcpu->kvm, sp->gfn);
+        kvm_unlink_unsync_page(vcpu->kvm, sp);
         if (vcpu->arch.mmu.sync_page(vcpu, sp)) {
                 kvm_mmu_zap_page(vcpu->kvm, sp);
                 return 1;
         }
 
         kvm_mmu_flush_tlb(vcpu);
-        kvm_unlink_unsync_page(vcpu->kvm, sp);
         return 0;
 }
 
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 613ec9aa674a..84eee43bbe74 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -331,6 +331,7 @@ static int FNAME(shadow_walk_entry)(struct kvm_shadow_walk *_sw,
                 r = kvm_read_guest_atomic(vcpu->kvm, gw->pte_gpa[level - 2],
                                           &curr_pte, sizeof(curr_pte));
                 if (r || curr_pte != gw->ptes[level - 2]) {
+                        kvm_mmu_put_page(shadow_page, sptep);
                         kvm_release_pfn_clean(sw->pfn);
                         sw->sptep = NULL;
                         return 1;
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index d06b4dc0e2ea..a4018b01e1f9 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3149,7 +3149,9 @@ static void vmx_intr_assist(struct kvm_vcpu *vcpu)
 
         if (cpu_has_virtual_nmis()) {
                 if (vcpu->arch.nmi_pending && !vcpu->arch.nmi_injected) {
-                        if (vmx_nmi_enabled(vcpu)) {
+                        if (vcpu->arch.interrupt.pending) {
+                                enable_nmi_window(vcpu);
+                        } else if (vmx_nmi_enabled(vcpu)) {
                                 vcpu->arch.nmi_pending = false;
                                 vcpu->arch.nmi_injected = true;
                         } else {