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

Pull kvm fixes from Paolo Bonzini:
 "ARM:

   - Address some fallout of the locking rework, this time affecting the
     way the vgic is configured

   - Fix an issue where the page table walker frees a subtree and then
     proceeds with walking what it has just freed...

   - Check that a given PA donated to the guest is actually memory (only
     affecting pKVM)

   - Correctly handle MTE CMOs by Set/Way

   - Fix the reported address of a watchpoint forwarded to userspace

   - Fix the freeing of the root of stage-2 page tables

   - Stop creating spurious PMU events to perform detection of the
     default PMU and use the existing PMU list instead

  x86:

   - Fix a memslot lookup bug in the NX recovery thread that could
     theoretically let userspace bypass the NX hugepage mitigation

   - Fix a s/BLOCKING/PENDING bug in SVM's vNMI support

   - Account exit stats for fastpath VM-Exits that never leave the super
     tight run-loop

   - Fix an out-of-bounds bug in the optimized APIC map code, and add a
     regression test for the race"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: selftests: Add test for race in kvm_recalculate_apic_map()
  KVM: x86: Bail from kvm_recalculate_phys_map() if x2APIC ID is out-of-bounds
  KVM: x86: Account fastpath-only VM-Exits in vCPU stats
  KVM: SVM: vNMI pending bit is V_NMI_PENDING_MASK not V_NMI_BLOCKING_MASK
  KVM: x86/mmu: Grab memslot for correct address space in NX recovery worker
  KVM: arm64: Document default vPMU behavior on heterogeneous systems
  KVM: arm64: Iterate arm_pmus list to probe for default PMU
  KVM: arm64: Drop last page ref in kvm_pgtable_stage2_free_removed()
  KVM: arm64: Populate fault info for watchpoint
  KVM: arm64: Reload PTE after invoking walker callback on preorder traversal
  KVM: arm64: Handle trap of tagged Set/Way CMOs
  arm64: Add missing Set/Way CMO encodings
  KVM: arm64: Prevent unconditional donation of unmapped regions from the host
  KVM: arm64: vgic: Fix a comment
  KVM: arm64: vgic: Fix locking comment
  KVM: arm64: vgic: Wrap vgic_its_create() with config_lock
  KVM: arm64: vgic: Fix a circular locking issue

1 files changed, 2 insertions, 7 deletions

diff --git a/arch/arm64/kvm/vgic/vgic-mmio.c b/arch/arm64/kvm/vgic/vgic-mmio.c
index 1939c94e0b24..ff558c05e990 100644
--- a/arch/arm64/kvm/vgic/vgic-mmio.c
+++ b/arch/arm64/kvm/vgic/vgic-mmio.c
@@ -1096,7 +1096,6 @@ int vgic_register_dist_iodev(struct kvm *kvm, gpa_t dist_base_address,
 			     enum vgic_type type)
 {
 	struct vgic_io_device *io_device = &kvm->arch.vgic.dist_iodev;
-	int ret = 0;
 	unsigned int len;
 
 	switch (type) {
@@ -1114,10 +1113,6 @@ int vgic_register_dist_iodev(struct kvm *kvm, gpa_t dist_base_address,
 	io_device->iodev_type = IODEV_DIST;
 	io_device->redist_vcpu = NULL;
 
-	mutex_lock(&kvm->slots_lock);
-	ret = kvm_io_bus_register_dev(kvm, KVM_MMIO_BUS, dist_base_address,
-				      len, &io_device->dev);
-	mutex_unlock(&kvm->slots_lock);
-
-	return ret;
+	return kvm_io_bus_register_dev(kvm, KVM_MMIO_BUS, dist_base_address,
+				       len, &io_device->dev);
 }