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 becauseof missing support/APIs in 5.10 kernel. I have captured those in the changelog as well in the individual patches.
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(-)