[GIT PULL] KVM x86 fixes for Linux 6.5-rc4

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Linus,

The following changes since commit 6eaae198076080886b9e7d57f4ae06fa782f90ef:

  Linux 6.5-rc3 (2023-07-23 15:24:10 -0700)

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 5a7591176c47cce363c1eed704241e5d1c42c5a6:

  KVM: selftests: Expand x86's sregs test to cover illegal CR0 values (2023-07-29 11:05:32 -0400)

Half kernel, half selftests.

----------------------------------------------------------------
x86:

* Do not register IRQ bypass consumer if posted interrupts not supported

* Fix missed device interrupt due to non-atomic update of IRR

* Use GFP_KERNEL_ACCOUNT for pid_table in ipiv

* Make VMREAD error path play nice with noinstr

* x86: Acquire SRCU read lock when handling fastpath MSR writes

* Support linking rseq tests statically against glibc 2.35+

* Fix reference count for stats file descriptors

* Detect userspace setting invalid CR0

Non-KVM:

* Remove coccinelle script that has caused multiple confusion
  ("debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE() usage",
  acked by Greg)

----------------------------------------------------------------
Like Xu (1):
      KVM: x86/irq: Conditionally register IRQ bypass consumer again

Maxim Levitsky (3):
      KVM: x86: VMX: __kvm_apic_update_irr must update the IRR atomically
      KVM: x86: VMX: set irr_pending in kvm_apic_update_irr
      KVM: x86: check the kvm_cpu_get_interrupt result before using it

Peng Hao (1):
      KVM: X86: Use GFP_KERNEL_ACCOUNT for pid_table in ipiv

Sean Christopherson (16):
      KVM: VMX: Make VMREAD error path play nice with noinstr
      KVM: VMX: Use vmread_error() to report VM-Fail in "goto" path
      KVM: x86: Acquire SRCU read lock when handling fastpath MSR writes
      Revert "KVM: SVM: Skip WRMSR fastpath on VM-Exit if next RIP isn't valid"
      selftests/rseq: Play nice with binaries statically linked against glibc 2.35+
      KVM: Grab a reference to KVM for VM and vCPU stats file descriptors
      KVM: selftests: Use pread() to read binary stats header
      KVM: selftests: Clean up stats fd in common stats_test() helper
      KVM: selftests: Explicitly free vcpus array in binary stats test
      KVM: selftests: Verify userspace can create "redundant" binary stats files
      KVM: selftests: Verify stats fd can be dup()'d and read
      KVM: selftests: Verify stats fd is usable after VM fd has been closed
      Revert "debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE() usage"
      KVM: x86: Disallow KVM_SET_SREGS{2} if incoming CR0 is invalid
      KVM: VMX: Don't fudge CR0 and CR4 for restricted L2 guest
      KVM: selftests: Expand x86's sregs test to cover illegal CR0 values

 arch/x86/include/asm/kvm-x86-ops.h                 |  1 +
 arch/x86/include/asm/kvm_host.h                    |  3 +-
 arch/x86/kvm/lapic.c                               | 25 +++++---
 arch/x86/kvm/svm/svm.c                             | 16 ++---
 arch/x86/kvm/vmx/vmenter.S                         |  8 +--
 arch/x86/kvm/vmx/vmx.c                             | 64 ++++++++++++++------
 arch/x86/kvm/vmx/vmx_ops.h                         | 12 +++-
 arch/x86/kvm/x86.c                                 | 50 +++++++++++-----
 .../api/debugfs/debugfs_simple_attr.cocci          | 68 ---------------------
 .../testing/selftests/kvm/include/kvm_util_base.h  |  6 +-
 .../testing/selftests/kvm/kvm_binary_stats_test.c  | 68 ++++++++++++++-------
 .../testing/selftests/kvm/x86_64/set_sregs_test.c  | 70 ++++++++++++----------
 tools/testing/selftests/rseq/rseq.c                | 28 +++++++--
 virt/kvm/kvm_main.c                                | 24 ++++++++
 14 files changed, 256 insertions(+), 187 deletions(-)
 delete mode 100644 scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci




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