[GIT PULL] KVM/arm fixes for 5.7, take #2

[Marc Zyngier <maz@kernel.org>]

Paolo,

This is the second batch of KVM/arm fixes for 5.7. A compilation fix,
a GICv4.1 fix, plus a couple of sanity checks (SP_EL0 save/restore,
and the sanitising of AArch32 registers).

Note that the pull request I sent a week ago[1] is still valid, and
that this new series is built on top of the previous one.

Please pull,

	M.

[1] https://lore.kernel.org/kvm/20200423154009.4113562-1-maz@kernel.org/

The following changes since commit 446c0768f5509793a0e527a439d4866b24707b0e:

  Merge branch 'kvm-arm64/vgic-fixes-5.7' into kvmarm-master/master (2020-04-23 16:27:33 +0100)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-5.7-2

for you to fetch changes up to 0225fd5e0a6a32af7af0aefac45c8ebf19dc5183:

  KVM: arm64: Fix 32bit PC wrap-around (2020-05-01 09:51:08 +0100)

----------------------------------------------------------------
KVM/arm fixes for Linux 5.7, take #2

- Fix compilation with Clang
- Correctly initialize GICv4.1 in the absence of a virtual ITS
- Move SP_EL0 save/restore to the guest entry/exit code
- Handle PC wrap around on 32bit guests, and narrow all 32bit
  registers on userspace access

----------------------------------------------------------------
Fangrui Song (1):
      KVM: arm64: Delete duplicated label in invalid_vector

Marc Zyngier (3):
      KVM: arm64: Save/restore sp_el0 as part of __guest_enter
      KVM: arm64: vgic-v4: Initialize GICv4.1 even in the absence of a virtual ITS
      KVM: arm64: Fix 32bit PC wrap-around

 arch/arm64/kvm/guest.c           |  7 +++++++
 arch/arm64/kvm/hyp/entry.S       | 23 +++++++++++++++++++++++
 arch/arm64/kvm/hyp/hyp-entry.S   |  1 -
 arch/arm64/kvm/hyp/sysreg-sr.c   | 17 +++--------------
 virt/kvm/arm/hyp/aarch32.c       |  8 ++++++--
 virt/kvm/arm/vgic/vgic-init.c    |  9 ++++++++-
 virt/kvm/arm/vgic/vgic-mmio-v3.c |  3 ++-
 7 files changed, 49 insertions(+), 19 deletions(-)