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

Pull kvm fixes from Paolo Bonzini:
 "Tools:
   - kvm_stat: do not show halt_wait_ns since it is not a cumulative statistic

  x86:
   - clean ups and fixes for bus lock vmexit and lazy allocation of rmaps
   - two fixes for SEV-ES (one more coming as soon as I get reviews)
   - fix for static_key underflow

  ARM:
   - Properly refcount pages used as a concatenated stage-2 PGD
   - Fix missing unlock when detecting the use of MTE+VM_SHARED"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: SEV-ES: reduce ghcb_sa_len to 32 bits
  KVM: VMX: Remove redundant handling of bus lock vmexit
  KVM: kvm_stat: do not show halt_wait_ns
  KVM: x86: WARN if APIC HW/SW disable static keys are non-zero on unload
  Revert "KVM: x86: Open code necessary bits of kvm_lapic_set_base() at vCPU RESET"
  KVM: SEV-ES: Set guest_state_protected after VMSA update
  KVM: X86: fix lazy allocation of rmaps
  KVM: SEV-ES: fix length of string I/O
  KVM: arm64: Release mmap_lock when using VM_SHARED with MTE
  KVM: arm64: Report corrupted refcount at EL2
  KVM: arm64: Fix host stage-2 PGD refcount
  KVM: s390: Function documentation fixes

2 files changed, 15 insertions, 1 deletions

diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c
index b9f85b2dc053..6af59c59cc1b 100644
--- a/arch/s390/kvm/gaccess.c
+++ b/arch/s390/kvm/gaccess.c
@@ -894,6 +894,11 @@ int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra,
 
 /**
  * guest_translate_address - translate guest logical into guest absolute address
+ * @vcpu: virtual cpu
+ * @gva: Guest virtual address
+ * @ar: Access register
+ * @gpa: Guest physical address
+ * @mode: Translation access mode
  *
  * Parameter semantics are the same as the ones from guest_translate.
  * The memory contents at the guest address are not changed.
@@ -934,6 +939,11 @@ int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva, u8 ar,
 
 /**
  * check_gva_range - test a range of guest virtual addresses for accessibility
+ * @vcpu: virtual cpu
+ * @gva: Guest virtual address
+ * @ar: Access register
+ * @length: Length of test range
+ * @mode: Translation access mode
  */
 int check_gva_range(struct kvm_vcpu *vcpu, unsigned long gva, u8 ar,
 		    unsigned long length, enum gacc_mode mode)
@@ -956,6 +966,7 @@ int check_gva_range(struct kvm_vcpu *vcpu, unsigned long gva, u8 ar,
 
 /**
  * kvm_s390_check_low_addr_prot_real - check for low-address protection
+ * @vcpu: virtual cpu
  * @gra: Guest real address
  *
  * Checks whether an address is subject to low-address protection and set
@@ -979,6 +990,7 @@ int kvm_s390_check_low_addr_prot_real(struct kvm_vcpu *vcpu, unsigned long gra)
  * @pgt: pointer to the beginning of the page table for the given address if
  *	 successful (return value 0), or to the first invalid DAT entry in
  *	 case of exceptions (return value > 0)
+ * @dat_protection: referenced memory is write protected
  * @fake: pgt references contiguous guest memory block, not a pgtable
  */
 static int kvm_s390_shadow_tables(struct gmap *sg, unsigned long saddr,
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 72b25b7cc6ae..2bd8f854f1b4 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -269,6 +269,7 @@ static int handle_prog(struct kvm_vcpu *vcpu)
 
 /**
  * handle_external_interrupt - used for external interruption interceptions
+ * @vcpu: virtual cpu
  *
  * This interception only occurs if the CPUSTAT_EXT_INT bit was set, or if
  * the new PSW does not have external interrupts disabled. In the first case,
@@ -315,7 +316,8 @@ static int handle_external_interrupt(struct kvm_vcpu *vcpu)
 }
 
 /**
- * Handle MOVE PAGE partial execution interception.
+ * handle_mvpg_pei - Handle MOVE PAGE partial execution interception.
+ * @vcpu: virtual cpu
  *
  * This interception can only happen for guests with DAT disabled and
  * addresses that are currently not mapped in the host. Thus we try to