Merge tag 'kvmarm-6.2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm...
authorPaolo Bonzini <pbonzini@redhat.com>
Tue, 6 Dec 2022 17:27:39 +0000 (12:27 -0500)
committerPaolo Bonzini <pbonzini@redhat.com>
Fri, 9 Dec 2022 08:12:12 +0000 (09:12 +0100)
commiteb5618911af0ac069d2313b289d4c19ca3379401
tree55f00bfaccf7aa55e0a8c074317d7e0b00a253b9
parent1e79a9e3ab96ecf8dbb8b6d237b3ae824bd79074
parent753d734f3f347e7fc49b819472bbf61dcfc1a16f
Merge tag 'kvmarm-6.2' of https://git./linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 updates for 6.2

- Enable the per-vcpu dirty-ring tracking mechanism, together with an
  option to keep the good old dirty log around for pages that are
  dirtied by something other than a vcpu.

- Switch to the relaxed parallel fault handling, using RCU to delay
  page table reclaim and giving better performance under load.

- Relax the MTE ABI, allowing a VMM to use the MAP_SHARED mapping
  option, which multi-process VMMs such as crosvm rely on.

- Merge the pKVM shadow vcpu state tracking that allows the hypervisor
  to have its own view of a vcpu, keeping that state private.

- Add support for the PMUv3p5 architecture revision, bringing support
  for 64bit counters on systems that support it, and fix the
  no-quite-compliant CHAIN-ed counter support for the machines that
  actually exist out there.

- Fix a handful of minor issues around 52bit VA/PA support (64kB pages
  only) as a prefix of the oncoming support for 4kB and 16kB pages.

- Add/Enable/Fix a bunch of selftests covering memslots, breakpoints,
  stage-2 faults and access tracking. You name it, we got it, we
  probably broke it.

- Pick a small set of documentation and spelling fixes, because no
  good merge window would be complete without those.

As a side effect, this tag also drags:

- The 'kvmarm-fixes-6.1-3' tag as a dependency to the dirty-ring
  series

- A shared branch with the arm64 tree that repaints all the system
  registers to match the ARM ARM's naming, and resulting in
  interesting conflicts
26 files changed:
Documentation/virt/kvm/api.rst
arch/arm64/kvm/arm.c
arch/arm64/kvm/mmu.c
arch/x86/include/asm/kvm_host.h
arch/x86/kvm/x86.c
include/linux/kvm_host.h
include/uapi/linux/kvm.h
tools/testing/selftests/kvm/.gitignore
tools/testing/selftests/kvm/Makefile
tools/testing/selftests/kvm/aarch64/aarch32_id_regs.c
tools/testing/selftests/kvm/aarch64/debug-exceptions.c
tools/testing/selftests/kvm/aarch64/page_fault_test.c
tools/testing/selftests/kvm/access_tracking_perf_test.c
tools/testing/selftests/kvm/demand_paging_test.c
tools/testing/selftests/kvm/dirty_log_test.c
tools/testing/selftests/kvm/include/kvm_util_base.h
tools/testing/selftests/kvm/include/memstress.h
tools/testing/selftests/kvm/lib/aarch64/processor.c
tools/testing/selftests/kvm/lib/elf.c
tools/testing/selftests/kvm/lib/kvm_util.c
tools/testing/selftests/kvm/lib/memstress.c
tools/testing/selftests/kvm/lib/userfaultfd_util.c
tools/testing/selftests/kvm/lib/x86_64/processor.c
tools/testing/selftests/kvm/memslot_modification_stress_test.c
tools/testing/selftests/kvm/memslot_perf_test.c
virt/kvm/kvm_main.c