Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "First round of KVM updates for 3.14; PPC parts will come next week.

  Nothing major here, just bugfixes all over the place.  The most
  interesting part is the ARM guys' virtualized interrupt controller
  overhaul, which lets userspace get/set the state and thus enables
  migration of ARM VMs"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (67 commits)
  kvm: make KVM_MMU_AUDIT help text more readable
  KVM: s390: Fix memory access error detection
  KVM: nVMX: Update guest activity state field on L2 exits
  KVM: nVMX: Fix nested_run_pending on activity state HLT
  KVM: nVMX: Clean up handling of VMX-related MSRs
  KVM: nVMX: Add tracepoints for nested_vmexit and nested_vmexit_inject
  KVM: nVMX: Pass vmexit parameters to nested_vmx_vmexit
  KVM: nVMX: Leave VMX mode on clearing of feature control MSR
  KVM: VMX: Fix DR6 update on #DB exception
  KVM: SVM: Fix reading of DR6
  KVM: x86: Sync DR7 on KVM_SET_DEBUGREGS
  add support for Hyper-V reference time counter
  KVM: remove useless write to vcpu->hv_clock.tsc_timestamp
  KVM: x86: fix tsc catchup issue with tsc scaling
  KVM: x86: limit PIT timer frequency
  KVM: x86: handle invalid root_hpa everywhere
  kvm: Provide kvm_vcpu_eligible_for_directed_yield() stub
  kvm: vfio: silence GCC warning
  KVM: ARM: Remove duplicate include
  arm/arm64: KVM: relax the requirements of VMA alignment for THP
  ...

1 files changed, 13 insertions, 11 deletions

diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 5809069..7789857 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -667,14 +667,16 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 		gfn = (fault_ipa & PMD_MASK) >> PAGE_SHIFT;
 	} else {
 		/*
-		 * Pages belonging to VMAs not aligned to the PMD mapping
-		 * granularity cannot be mapped using block descriptors even
-		 * if the pages belong to a THP for the process, because the
-		 * stage-2 block descriptor will cover more than a single THP
-		 * and we loose atomicity for unmapping, updates, and splits
-		 * of the THP or other pages in the stage-2 block range.
+		 * Pages belonging to memslots that don't have the same
+		 * alignment for userspace and IPA cannot be mapped using
+		 * block descriptors even if the pages belong to a THP for
+		 * the process, because the stage-2 block descriptor will
+		 * cover more than a single THP and we loose atomicity for
+		 * unmapping, updates, and splits of the THP or other pages
+		 * in the stage-2 block range.
 		 */
-		if (vma->vm_start & ~PMD_MASK)
+		if ((memslot->userspace_addr & ~PMD_MASK) !=
+		    ((memslot->base_gfn << PAGE_SHIFT) & ~PMD_MASK))
 			force_pte = true;
 	}
 	up_read(&current->mm->mmap_sem);
@@ -916,9 +918,9 @@ int kvm_mmu_init(void)
 {
 	int err;
 
-	hyp_idmap_start = virt_to_phys(__hyp_idmap_text_start);
-	hyp_idmap_end = virt_to_phys(__hyp_idmap_text_end);
-	hyp_idmap_vector = virt_to_phys(__kvm_hyp_init);
+	hyp_idmap_start = kvm_virt_to_phys(__hyp_idmap_text_start);
+	hyp_idmap_end = kvm_virt_to_phys(__hyp_idmap_text_end);
+	hyp_idmap_vector = kvm_virt_to_phys(__kvm_hyp_init);
 
 	if ((hyp_idmap_start ^ hyp_idmap_end) & PAGE_MASK) {
 		/*
@@ -945,7 +947,7 @@ int kvm_mmu_init(void)
 		 */
 		kvm_flush_dcache_to_poc(init_bounce_page, len);
 
-		phys_base = virt_to_phys(init_bounce_page);
+		phys_base = kvm_virt_to_phys(init_bounce_page);
 		hyp_idmap_vector += phys_base - hyp_idmap_start;
 		hyp_idmap_start = phys_base;
 		hyp_idmap_end = phys_base + len;