[PATCH 0/9] KVM backports to 5.10

[Rishabh Bhatnagar <risbhat@amazon.com>]

This patch series backports a few VM preemption_status, steal_time and
PV TLB flushing fixes to 5.10 stable kernel.

Most of the changes backport cleanly except i had to work around a few
because of missing support/APIs in 5.10 kernel. I have captured those in
the changelog as well in the individual patches.

Earlier patch series that i'm resending for stable.
https://lore.kernel.org/all/20220909181351.23983-1-risbhat@amazon.com/

Changelog
- Use mark_page_dirty_in_slot api without kvm argument (KVM: x86: Fix
  recording of guest steal time / preempted status)
- Avoid checking for xen_msr and SEV-ES conditions (KVM: x86:
  do not set st->preempted when going back to user space)
- Use VCPU_STAT macro to expose preemption_reported and
  preemption_other fields (KVM: x86: do not report a vCPU as preempted
  outside instruction boundaries)

David Woodhouse (2):
  KVM: x86: Fix recording of guest steal time / preempted status
  KVM: Fix steal time asm constraints

Lai Jiangshan (1):
  KVM: x86: Ensure PV TLB flush tracepoint reflects KVM behavior

Paolo Bonzini (5):
  KVM: x86: do not set st->preempted when going back to user space
  KVM: x86: do not report a vCPU as preempted outside instruction
    boundaries
  KVM: x86: revalidate steal time cache if MSR value changes
  KVM: x86: do not report preemption if the steal time cache is stale
  KVM: x86: move guest_pv_has out of user_access section

Sean Christopherson (1):
  KVM: x86: Remove obsolete disabling of page faults in
    kvm_arch_vcpu_put()

 arch/x86/include/asm/kvm_host.h |   5 +-
 arch/x86/kvm/svm/svm.c          |   2 +
 arch/x86/kvm/vmx/vmx.c          |   1 +
 arch/x86/kvm/x86.c              | 164 ++++++++++++++++++++++----------
 4 files changed, 122 insertions(+), 50 deletions(-)

-- 
2.39.2