[PATCH 0/3] KVM/arm64 fixes for 5.10, take #3

[Marc Zyngier]

Paolo,

Here's another small set of fixes for 5.10, this time fixing some
corner cases of the Spectre mitigation rework. Note that I had to pull
5.10-rc1 into kvmarm/next in order to avoid some annoying conflicts.

Please pull,

	M.

The following changes since commit 4f6b838c378a52ea3ae0b15f12ca8a20849072fa:

  Merge tag 'v5.10-rc1' into kvmarm-master/next (2020-11-12 21:20:43 +0000)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-5.10-3

for you to fetch changes up to ed4ffaf49bf9ce1002b516d8c6aa04937b7950bc:

  KVM: arm64: Handle SCXTNUM_ELx traps (2020-11-12 21:22:46 +0000)

----------------------------------------------------------------
KVM/arm64 fixes for v5.10, take #3

- Allow userspace to downgrade ID_AA64PFR0_EL1.CSV2
- Inject UNDEF on SCXTNUM_ELx access

----------------------------------------------------------------
Marc Zyngier (3):
      KVM: arm64: Allow setting of ID_AA64PFR0_EL1.CSV2 from userspace
      KVM: arm64: Unify trap handlers injecting an UNDEF
      KVM: arm64: Handle SCXTNUM_ELx traps

 arch/arm64/include/asm/kvm_host.h |   2 +
 arch/arm64/include/asm/sysreg.h   |   4 ++
 arch/arm64/kvm/arm.c              |  16 ++++++
 arch/arm64/kvm/sys_regs.c         | 111 +++++++++++++++++++++++---------------
 4 files changed, 89 insertions(+), 44 deletions(-)