[GIT PULL] KVM/arm64 fixes for 5.15, take #2

[Marc Zyngier]

Hi Paolo,

Another couple of fixes for KVM/arm64: a fix for a stage-2 refcounting
issue, and an error handling howler affecting MTE, all thanks to Quentin.

Please pull,

	M.

The following changes since commit e840f42a49925707fca90e6c7a4095118fdb8c4d:

  KVM: arm64: Fix PMU probe ordering (2021-09-20 12:43:34 +0100)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-5.15-2

for you to fetch changes up to 6e6a8ef088e1222cb1250942f51ad9c1ab219ab2:

  KVM: arm64: Release mmap_lock when using VM_SHARED with MTE (2021-10-05 13:22:45 +0100)

----------------------------------------------------------------
KVM/arm64 fixes for 5.15, take #2

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

----------------------------------------------------------------
Quentin Perret (3):
      KVM: arm64: Fix host stage-2 PGD refcount
      KVM: arm64: Report corrupted refcount at EL2
      KVM: arm64: Release mmap_lock when using VM_SHARED with MTE

 arch/arm64/kvm/hyp/include/nvhe/gfp.h |  1 +
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 13 ++++++++++++-
 arch/arm64/kvm/hyp/nvhe/page_alloc.c  | 15 +++++++++++++++
 arch/arm64/kvm/mmu.c                  |  6 ++++--
 4 files changed, 32 insertions(+), 3 deletions(-)