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

Pull kvm updates from Paolo Bonzini:
 "This is a large update by KVM standards, including AMD PSP (Platform
  Security Processor, aka "AMD Secure Technology") and ARM CoreSight
  (debug and trace) changes.

  ARM:

   - CoreSight: Add support for ETE and TRBE

   - Stage-2 isolation for the host kernel when running in protected
     mode

   - Guest SVE support when running in nVHE mode

   - Force W^X hypervisor mappings in nVHE mode

   - ITS save/restore for guests using direct injection with GICv4.1

   - nVHE panics now produce readable backtraces

   - Guest support for PTP using the ptp_kvm driver

   - Performance improvements in the S2 fault handler

  x86:

   - AMD PSP driver changes

   - Optimizations and cleanup of nested SVM code

   - AMD: Support for virtual SPEC_CTRL

   - Optimizations of the new MMU code: fast invalidation, zap under
     read lock, enable/disably dirty page logging under read lock

   - /dev/kvm API for AMD SEV live migration (guest API coming soon)

   - support SEV virtual machines sharing the same encryption context

   - support SGX in virtual machines

   - add a few more statistics

   - improved directed yield heuristics

   - Lots and lots of cleanups

  Generic:

   - Rework of MMU notifier interface, simplifying and optimizing the
     architecture-specific code

   - a handful of "Get rid of oprofile leftovers" patches

   - Some selftests improvements"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (379 commits)
  KVM: selftests: Speed up set_memory_region_test
  selftests: kvm: Fix the check of return value
  KVM: x86: Take advantage of kvm_arch_dy_has_pending_interrupt()
  KVM: SVM: Skip SEV cache flush if no ASIDs have been used
  KVM: SVM: Remove an unnecessary prototype declaration of sev_flush_asids()
  KVM: SVM: Drop redundant svm_sev_enabled() helper
  KVM: SVM: Move SEV VMCB tracking allocation to sev.c
  KVM: SVM: Explicitly check max SEV ASID during sev_hardware_setup()
  KVM: SVM: Unconditionally invoke sev_hardware_teardown()
  KVM: SVM: Enable SEV/SEV-ES functionality by default (when supported)
  KVM: SVM: Condition sev_enabled and sev_es_enabled on CONFIG_KVM_AMD_SEV=y
  KVM: SVM: Append "_enabled" to module-scoped SEV/SEV-ES control variables
  KVM: SEV: Mask CPUID[0x8000001F].eax according to supported features
  KVM: SVM: Move SEV module params/variables to sev.c
  KVM: SVM: Disable SEV/SEV-ES if NPT is disabled
  KVM: SVM: Free sev_asid_bitmap during init if SEV setup fails
  KVM: SVM: Zero out the VMCB array used to track SEV ASID association
  x86/sev: Drop redundant and potentially misleading 'sev_enabled'
  KVM: x86: Move reverse CPUID helpers to separate header file
  KVM: x86: Rename GPR accessors to make mode-aware variants the defaults
  ...

1 files changed, 17 insertions, 39 deletions

diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 913944dc3620..d7733b07f489 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -425,61 +425,39 @@ static int kvmppc_core_check_requests_pr(struct kvm_vcpu *vcpu)
 }
 
 /************* MMU Notifiers *************/
-static void do_kvm_unmap_hva(struct kvm *kvm, unsigned long start,
-			     unsigned long end)
+static bool do_kvm_unmap_gfn(struct kvm *kvm, struct kvm_gfn_range *range)
 {
 	long i;
 	struct kvm_vcpu *vcpu;
-	struct kvm_memslots *slots;
-	struct kvm_memory_slot *memslot;
 
-	slots = kvm_memslots(kvm);
-	kvm_for_each_memslot(memslot, slots) {
-		unsigned long hva_start, hva_end;
-		gfn_t gfn, gfn_end;
+	kvm_for_each_vcpu(i, vcpu, kvm)
+		kvmppc_mmu_pte_pflush(vcpu, range->start << PAGE_SHIFT,
+				      range->end << PAGE_SHIFT);
 
-		hva_start = max(start, memslot->userspace_addr);
-		hva_end = min(end, memslot->userspace_addr +
-					(memslot->npages << PAGE_SHIFT));
-		if (hva_start >= hva_end)
-			continue;
-		/*
-		 * {gfn(page) | page intersects with [hva_start, hva_end)} =
-		 * {gfn, gfn+1, ..., gfn_end-1}.
-		 */
-		gfn = hva_to_gfn_memslot(hva_start, memslot);
-		gfn_end = hva_to_gfn_memslot(hva_end + PAGE_SIZE - 1, memslot);
-		kvm_for_each_vcpu(i, vcpu, kvm)
-			kvmppc_mmu_pte_pflush(vcpu, gfn << PAGE_SHIFT,
-					      gfn_end << PAGE_SHIFT);
-	}
+	return false;
 }
 
-static int kvm_unmap_hva_range_pr(struct kvm *kvm, unsigned long start,
-				  unsigned long end)
+static bool kvm_unmap_gfn_range_pr(struct kvm *kvm, struct kvm_gfn_range *range)
 {
-	do_kvm_unmap_hva(kvm, start, end);
-
-	return 0;
+	return do_kvm_unmap_gfn(kvm, range);
 }
 
-static int kvm_age_hva_pr(struct kvm *kvm, unsigned long start,
-			  unsigned long end)
+static bool kvm_age_gfn_pr(struct kvm *kvm, struct kvm_gfn_range *range)
 {
 	/* XXX could be more clever ;) */
-	return 0;
+	return false;
 }
 
-static int kvm_test_age_hva_pr(struct kvm *kvm, unsigned long hva)
+static bool kvm_test_age_gfn_pr(struct kvm *kvm, struct kvm_gfn_range *range)
 {
 	/* XXX could be more clever ;) */
-	return 0;
+	return false;
 }
 
-static void kvm_set_spte_hva_pr(struct kvm *kvm, unsigned long hva, pte_t pte)
+static bool kvm_set_spte_gfn_pr(struct kvm *kvm, struct kvm_gfn_range *range)
 {
 	/* The page will get remapped properly on its next fault */
-	do_kvm_unmap_hva(kvm, hva, hva + PAGE_SIZE);
+	return do_kvm_unmap_gfn(kvm, range);
 }
 
 /*****************************************/
@@ -2079,10 +2057,10 @@ static struct kvmppc_ops kvm_ops_pr = {
 	.flush_memslot = kvmppc_core_flush_memslot_pr,
 	.prepare_memory_region = kvmppc_core_prepare_memory_region_pr,
 	.commit_memory_region = kvmppc_core_commit_memory_region_pr,
-	.unmap_hva_range = kvm_unmap_hva_range_pr,
-	.age_hva  = kvm_age_hva_pr,
-	.test_age_hva = kvm_test_age_hva_pr,
-	.set_spte_hva = kvm_set_spte_hva_pr,
+	.unmap_gfn_range = kvm_unmap_gfn_range_pr,
+	.age_gfn  = kvm_age_gfn_pr,
+	.test_age_gfn = kvm_test_age_gfn_pr,
+	.set_spte_gfn = kvm_set_spte_gfn_pr,
 	.free_memslot = kvmppc_core_free_memslot_pr,
 	.init_vm = kvmppc_core_init_vm_pr,
 	.destroy_vm = kvmppc_core_destroy_vm_pr,