[GIT PULL] KVM/arm64 fixes for 5.12, take #3

[Marc Zyngier]

Hi Paolo,

Here's another set of fixes for KVM/arm64 in 5.12.

One patch fixes a GICv3 MMIO regression introduced when working around
a firmware bug. The last two patches prevent the guest from messing
with the ARMv8.4 tracing, a new feature that was introduced in 5.12.

Please pull,

	M.

The following changes since commit 1e28eed17697bcf343c6743f0028cc3b5dd88bf0:

  Linux 5.12-rc3 (2021-03-14 14:41:02 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-5.12-3

for you to fetch changes up to af22df997d71c32304d6835a8b690281063b8010:

  KVM: arm64: Fix CPU interface MMIO compatibility detection (2021-03-24 17:26:38 +0000)

----------------------------------------------------------------
KVM/arm64 fixes for 5.12, take #3

- Fix GICv3 MMIO compatibility probing
- Prevent guests from using the ARMv8.4 self-hosted tracing extension

----------------------------------------------------------------
Marc Zyngier (1):
      KVM: arm64: Fix CPU interface MMIO compatibility detection

Suzuki K Poulose (2):
      KVM: arm64: Hide system instruction access to Trace registers
      KVM: arm64: Disable guest access to trace filter controls

 arch/arm64/include/asm/kvm_arm.h | 1 +
 arch/arm64/kernel/cpufeature.c   | 1 -
 arch/arm64/kvm/debug.c           | 2 ++
 arch/arm64/kvm/hyp/vgic-v3-sr.c  | 9 +++++++++
 4 files changed, 12 insertions(+), 1 deletion(-)