[GIT PULL] Second batch of KVM changes for Linux 5.12

[Paolo Bonzini <pbonzini@redhat.com>]

Linus,

The following changes since commit 8c6e67bec3192f16fa624203c8131e10cc4814ba:

  Merge tag 'kvmarm-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD (2021-02-12 11:23:44 -0500)

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 2df8d3807ce7f75bb975f1aeae8fc6757527c62d:

  KVM: SVM: Fix nested VM-Exit on #GP interception handling (2021-02-25 05:13:05 -0500)

----------------------------------------------------------------
x86:
- take into account HVA before retrying on MMU notifier race
- fixes for nested AMD guests without NPT
- allow INVPCID in guest without PCID
- disable PML in hardware when not in use
- MMU code cleanups

----------------------------------------------------------------
David Stevens (1):
      KVM: x86/mmu: Consider the hva in mmu_notifier retry

Ignacio Alvarado (1):
      selftests: kvm: add hardware_disable test

Like Xu (1):
      KVM: vmx/pmu: Fix dummy check if lbr_desc->event is created

Lukas Bulwahn (1):
      KVM: Documentation: rectify rst markup in KVM_GET_SUPPORTED_HV_CPUID

Makarand Sonare (1):
      KVM: VMX: Dynamically enable/disable PML based on memslot dirty logging

Maxim Levitsky (2):
      KVM: VMX: read idt_vectoring_info a bit earlier
      KVM: nSVM: move nested vmrun tracepoint to enter_svm_guest_mode

Paolo Bonzini (4):
      selftests: kvm: avoid uninitialized variable warning
      KVM: nSVM: fix running nested guests when npt=0
      KVM: nVMX: no need to undo inject_page_fault change on nested vmexit
      KVM: nSVM: prepare guest save area while is_guest_mode is true

Sean Christopherson (17):
      KVM: SVM: Intercept INVPCID when it's disabled to inject #UD
      KVM: x86: Advertise INVPCID by default
      KVM: VMX: Allow INVPCID in guest without PCID
      KVM: x86/mmu: Expand collapsible SPTE zap for TDP MMU to ZONE_DEVICE and HugeTLB pages
      KVM: x86/mmu: Split out max mapping level calculation to helper
      KVM: x86/mmu: Pass the memslot to the rmap callbacks
      KVM: x86/mmu: Consult max mapping level when zapping collapsible SPTEs
      KVM: nVMX: Disable PML in hardware when running L2
      KVM: x86/mmu: Expand on the comment in kvm_vcpu_ad_need_write_protect()
      KVM: x86/mmu: Make dirty log size hook (PML) a value, not a function
      KVM: x86: Move MMU's PML logic to common code
      KVM: x86: Further clarify the logic and comments for toggling log dirty
      KVM: x86/mmu: Don't set dirty bits when disabling dirty logging w/ PML
      KVM: x86: Fold "write-protect large" use case into generic write-protect
      KVM: x86/mmu: Remove a variety of unnecessary exports
      KVM: x86/mmu: Skip mmu_notifier check when handling MMIO page fault
      KVM: SVM: Fix nested VM-Exit on #GP interception handling

 Documentation/virt/kvm/api.rst                     |   2 +
 arch/powerpc/kvm/book3s_64_mmu_hv.c                |   2 +-
 arch/powerpc/kvm/book3s_64_mmu_radix.c             |   2 +-
 arch/x86/include/asm/kvm-x86-ops.h                 |   6 +-
 arch/x86/include/asm/kvm_host.h                    |  36 +---
 arch/x86/kvm/cpuid.c                               |   2 +-
 arch/x86/kvm/mmu/mmu.c                             | 224 ++++++++-------------
 arch/x86/kvm/mmu/mmu_internal.h                    |   7 +-
 arch/x86/kvm/mmu/paging_tmpl.h                     |  14 +-
 arch/x86/kvm/mmu/tdp_mmu.c                         |  66 +-----
 arch/x86/kvm/mmu/tdp_mmu.h                         |   3 +-
 arch/x86/kvm/svm/nested.c                          |  48 +++--
 arch/x86/kvm/svm/svm.c                             |  22 +-
 arch/x86/kvm/vmx/nested.c                          |  37 ++--
 arch/x86/kvm/vmx/pmu_intel.c                       |   4 +-
 arch/x86/kvm/vmx/vmx.c                             | 112 ++++-------
 arch/x86/kvm/vmx/vmx.h                             |   2 +
 arch/x86/kvm/x86.c                                 | 143 +++++++------
 include/linux/kvm_host.h                           |  25 ++-
 tools/testing/selftests/kvm/.gitignore             |   1 +
 tools/testing/selftests/kvm/Makefile               |   1 +
 .../testing/selftests/kvm/hardware_disable_test.c  | 165 +++++++++++++++
 tools/testing/selftests/kvm/lib/x86_64/processor.c |   3 +-
 virt/kvm/kvm_main.c                                |  29 ++-
 24 files changed, 533 insertions(+), 423 deletions(-)
 create mode 100644 tools/testing/selftests/kvm/hardware_disable_test.c