[GIT PULL] KVM/arm64 fixes for 5.11, take #2

[Marc Zyngier]

Hi Paolo,

This is the second batch of fixes for 5.11. Mostly PMU fixes,
but also a couple of memory tagging fixes as well as a PSCI
firmware workaround.

Please pull,

	M.

The following changes since commit 45ba7b195a369f35cb39094fdb32efe5908b34ad:

  arm64: cpufeature: remove non-exist CONFIG_KVM_ARM_HOST (2021-01-05 13:22:07 +0000)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-5.11-2

for you to fetch changes up to 139bc8a6146d92822c866cf2fd410159c56b3648:

  KVM: Forbid the use of tagged userspace addresses for memslots (2021-01-21 14:17:36 +0000)

----------------------------------------------------------------
KVM/arm64 fixes for 5.11, take #2

- Don't allow tagged pointers to point to memslots
- Filter out ARMv8.1+ PMU events on v8.0 hardware
- Hide PMU registers from userspace when no PMU is configured
- More PMU cleanups
- Don't try to handle broken PSCI firmware
- More sys_reg() to reg_to_encoding() conversions

----------------------------------------------------------------
Alexandru Elisei (1):
      KVM: arm64: Use the reg_to_encoding() macro instead of sys_reg()

David Brazdil (1):
      KVM: arm64: Allow PSCI SYSTEM_OFF/RESET to return

Marc Zyngier (4):
      KVM: arm64: Hide PMU registers from userspace when not available
      KVM: arm64: Simplify handling of absent PMU system registers
      KVM: arm64: Filter out v8.1+ events on v8.0 HW
      KVM: Forbid the use of tagged userspace addresses for memslots

Steven Price (1):
      KVM: arm64: Compute TPIDR_EL2 ignoring MTE tag

 Documentation/virt/kvm/api.rst       |  3 ++
 arch/arm64/kvm/arm.c                 |  3 +-
 arch/arm64/kvm/hyp/nvhe/psci-relay.c | 13 ++---
 arch/arm64/kvm/pmu-emul.c            | 10 ++--
 arch/arm64/kvm/sys_regs.c            | 93 ++++++++++++++++++++++--------------
 virt/kvm/kvm_main.c                  |  1 +
 6 files changed, 74 insertions(+), 49 deletions(-)