Merge tag 'kvmarm-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmar...

KVM/arm64 updates for Linux 5.13

New features:

- 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
- Alexandru is now a reviewer (not really a new feature...)

Fixes:
- Proper emulation of the GICR_TYPER register
- Handle the complete set of relocation in the nVHE EL2 object
- Get rid of the oprofile dependency in the PMU code (and of the
  oprofile body parts at the same time)
- Debug and SPE fixes
- Fix vcpu reset

diff --cc Documentation/virt/kvm/api.rst
index 56c6fca,3f21095..94804c2
--- 1/Documentation/virt/kvm/api.rst
--- 2/Documentation/virt/kvm/api.rst
+++ b/Documentation/virt/kvm/api.rst
@@@ -6844,28 -6738,12 +6857,37 @@@ The KVM_XEN_HVM_CONFIG_RUNSTATE flag in
  features KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADDR/_CURRENT/_DATA/_ADJUST are
  supported by the KVM_XEN_VCPU_SET_ATTR/KVM_XEN_VCPU_GET_ATTR ioctls.
  
 -8.31 KVM_CAP_PTP_KVM
 +8.31 KVM_CAP_PPC_MULTITCE
 +-------------------------
 +
 +:Capability: KVM_CAP_PPC_MULTITCE
 +:Architectures: ppc
 +:Type: vm
 +
 +This capability means the kernel is capable of handling hypercalls
 +H_PUT_TCE_INDIRECT and H_STUFF_TCE without passing those into the user
 +space. This significantly accelerates DMA operations for PPC KVM guests.
 +User space should expect that its handlers for these hypercalls
 +are not going to be called if user space previously registered LIOBN
 +in KVM (via KVM_CREATE_SPAPR_TCE or similar calls).
 +
 +In order to enable H_PUT_TCE_INDIRECT and H_STUFF_TCE use in the guest,
 +user space might have to advertise it for the guest. For example,
 +IBM pSeries (sPAPR) guest starts using them if "hcall-multi-tce" is
 +present in the "ibm,hypertas-functions" device-tree property.
 +
 +The hypercalls mentioned above may or may not be processed successfully
 +in the kernel based fast path. If they can not be handled by the kernel,
 +they will get passed on to user space. So user space still has to have
 +an implementation for these despite the in kernel acceleration.
 +
 +This capability is always enabled.
++
++8.32 KVM_CAP_PTP_KVM
+ --------------------
+ 
+ :Architectures: arm64
+ 
+ This capability indicates that the KVM virtual PTP service is
+ supported in the host. A VMM can check whether the service is
+ available to the guest on migration.
 -

diff --cc MAINTAINERS
Simple merge

diff --cc arch/arm64/Kconfig
Simple merge

diff --cc arch/arm64/include/asm/kvm_host.h
index 3a708be,0b926f0..7cd7d5c
--- 1/arch/arm64/include/asm/kvm_host.h
--- 2/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@@ -400,11 -404,9 +404,13 @@@ struct kvm_vcpu_arch 
  #define KVM_ARM64_GUEST_HAS_PTRAUTH   (1 << 7) /* PTRAUTH exposed to guest */
  #define KVM_ARM64_PENDING_EXCEPTION   (1 << 8) /* Exception pending */
  #define KVM_ARM64_EXCEPT_MASK         (7 << 9) /* Target EL/MODE */
+ #define KVM_ARM64_DEBUG_STATE_SAVE_SPE        (1 << 12) /* Save SPE context if active  */
+ #define KVM_ARM64_DEBUG_STATE_SAVE_TRBE       (1 << 13) /* Save TRBE context if active  */
  
 +#define KVM_GUESTDBG_VALID_MASK (KVM_GUESTDBG_ENABLE | \
 +                               KVM_GUESTDBG_USE_SW_BP | \
 +                               KVM_GUESTDBG_USE_HW | \
 +                               KVM_GUESTDBG_SINGLESTEP)
  /*
   * When KVM_ARM64_PENDING_EXCEPTION is set, KVM_ARM64_EXCEPT_MASK can
   * take the following values:

diff --cc arch/arm64/kernel/cpufeature.c
Simple merge

diff --cc arch/arm64/kvm/arm.c
index 0d92a4e,4808aca..1cb39c0
--- 1/arch/arm64/kvm/arm.c
--- 2/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@@ -206,10 -206,9 +206,11 @@@ int kvm_vm_ioctl_check_extension(struc
        case KVM_CAP_ARM_INJECT_EXT_DABT:
        case KVM_CAP_SET_GUEST_DEBUG:
        case KVM_CAP_VCPU_ATTRIBUTES:
+       case KVM_CAP_PTP_KVM:
                r = 1;
                break;
 +      case KVM_CAP_SET_GUEST_DEBUG2:
 +              return KVM_GUESTDBG_VALID_MASK;
        case KVM_CAP_ARM_SET_DEVICE_ADDR:
                r = 1;
                break;

diff --cc arch/arm64/kvm/guest.c
Simple merge

diff --cc arch/arm64/kvm/mmu.c
index 3572823,cd4d51a..c5d1f3c
--- 1/arch/arm64/kvm/mmu.c
--- 2/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@@ -839,9 -923,13 +923,13 @@@ static int user_mem_abort(struct kvm_vc
         * gfn_to_pfn_prot (which calls get_user_pages), so that we don't risk
         * the page we just got a reference to gets unmapped before we have a
         * chance to grab the mmu_lock, which ensure that if the page gets
 -       * unmapped afterwards, the call to kvm_unmap_hva will take it away
 +       * unmapped afterwards, the call to kvm_unmap_gfn will take it away
         * from us again properly. This smp_rmb() interacts with the smp_wmb()
         * in kvm_mmu_notifier_invalidate_<page|range_end>.
+        *
+        * Besides, __gfn_to_pfn_memslot() instead of gfn_to_pfn_prot() is
+        * used to avoid unnecessary overhead introduced to locate the memory
+        * slot because it's always fixed even @gfn is adjusted for huge pages.
         */
        smp_rmb();
  

diff --cc include/uapi/linux/kvm.h
index d765334,0e0f70c..3fd9a7e
--- 1/include/uapi/linux/kvm.h
--- 2/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@@ -1078,9 -1078,7 +1078,10 @@@ struct kvm_ppc_resize_hpt 
  #define KVM_CAP_DIRTY_LOG_RING 192
  #define KVM_CAP_X86_BUS_LOCK_EXIT 193
  #define KVM_CAP_PPC_DAWR1 194
 -#define KVM_CAP_PTP_KVM 195
 +#define KVM_CAP_SET_GUEST_DEBUG2 195
 +#define KVM_CAP_SGX_ATTRIBUTE 196
 +#define KVM_CAP_VM_COPY_ENC_CONTEXT_FROM 197
++#define KVM_CAP_PTP_KVM 198
  
  #ifdef KVM_CAP_IRQ_ROUTING
  

diff --cc tools/testing/selftests/kvm/.gitignore
Simple merge

diff --cc tools/testing/selftests/kvm/Makefile
Simple merge

diff --cc tools/testing/selftests/kvm/include/kvm_util.h
Simple merge

diff --cc tools/testing/selftests/kvm/lib/kvm_util.c
Simple merge