[GIT PULL] KVM fixes for Linux 5.16-rc5

[Paolo Bonzini]

Linus,

The following changes since commit 0fcfb00b28c0b7884635dacf38e46d60bf3d4eb1:

  Linux 5.16-rc4 (2021-12-05 14:08:22 -0800)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus

for you to fetch changes up to 10e7a099bfd860a2b77ea8aaac661f52c16dd865:

  selftests: KVM: Add test to verify KVM doesn't explode on "bad" I/O (2021-12-10 09:38:02 -0500)

----------------------------------------------------------------
More x86 fixes:
* Logic bugs in CR0 writes and Hyper-V hypercalls
* Don't use Enlightened MSR Bitmap for L3
* Remove user-triggerable WARN

Plus a few selftest fixes and a regression test for the
user-triggerable WARN.

----------------------------------------------------------------
So I am not sure if this counts as "the kvm side calming down"; but the
larger scale bugfixes are all in-tree now, and what I've got here looks
(at least on the arch/ side) like a fairly normal pull request for
middle RCs.

Thanks,

Paolo

Lai Jiangshan (1):
      KVM: X86: Raise #GP when clearing CR0_PG in 64 bit mode

Maciej S. Szmigiero (1):
      KVM: x86: selftests: svm_int_ctl_test: fix intercept calculation

Paolo Bonzini (1):
      selftests: KVM: avoid failures due to reserved HyperTransport region

Sean Christopherson (3):
      KVM: x86: Ignore sparse banks size for an "all CPUs", non-sparse IPI req
      KVM: x86: Don't WARN if userspace mucks with RCX during string I/O exit
      selftests: KVM: Add test to verify KVM doesn't explode on "bad" I/O

Vitaly Kuznetsov (2):
      KVM: nVMX: Don't use Enlightened MSR Bitmap for L3
      KVM: x86: Wait for IPIs to be delivered when handling Hyper-V TLB flush hypercall

 arch/x86/include/asm/kvm_host.h                    |   2 +-
 arch/x86/kvm/hyperv.c                              |   7 +-
 arch/x86/kvm/vmx/vmx.c                             |  22 ++--
 arch/x86/kvm/x86.c                                 |  12 ++-
 tools/testing/selftests/kvm/.gitignore             |   1 +
 tools/testing/selftests/kvm/Makefile               |   1 +
 tools/testing/selftests/kvm/include/kvm_util.h     |   9 ++
 tools/testing/selftests/kvm/lib/kvm_util.c         |   2 +-
 tools/testing/selftests/kvm/lib/x86_64/processor.c |  68 ++++++++++++
 .../selftests/kvm/x86_64/svm_int_ctl_test.c        |   2 +-
 .../selftests/kvm/x86_64/userspace_io_test.c       | 114 +++++++++++++++++++++
 11 files changed, 223 insertions(+), 17 deletions(-)
 create mode 100644 tools/testing/selftests/kvm/x86_64/userspace_io_test.c