[PATCH v7 0/6] KVM: x86: Add idempotent controls for migrating system counter state

[Sean Christopherson]

On Mon, Aug 16, 2021, Oliver Upton wrote:
> Applies cleanly to kvm/queue.
> 
> Parent commit: a3e0b8bd99ab ("KVM: MMU: change tracepoints arguments to kvm_page_fault")

This needs a rebase, patch 2 and presumably patch 3 conflict with commit
77fcbe823f00 ("KVM: x86: Prevent 'hv_clock->system_time' from going negative in
kvm_guest_time_update()").

> v6: https://lore.kernel.org/r/20210804085819.846610-1-oupton@google.com
> 
> v6 -> v7:
>  - Separated x86, arm64, and selftests into different series
>  - Rebased on top of kvm/queue
> 
> Oliver Upton (6):
>   KVM: x86: Fix potential race in KVM_GET_CLOCK
>   KVM: x86: Create helper methods for KVM_{GET,SET}_CLOCK ioctls
>   KVM: x86: Report host tsc and realtime values in KVM_GET_CLOCK
>   KVM: x86: Take the pvclock sync lock behind the tsc_write_lock
>   KVM: x86: Refactor tsc synchronization code
>   KVM: x86: Expose TSC offset controls to userspace
> 
>  Documentation/virt/kvm/api.rst          |  42 ++-
>  Documentation/virt/kvm/devices/vcpu.rst |  57 ++++
>  Documentation/virt/kvm/locking.rst      |  11 +
>  arch/x86/include/asm/kvm_host.h         |   4 +
>  arch/x86/include/uapi/asm/kvm.h         |   4 +
>  arch/x86/kvm/x86.c                      | 362 +++++++++++++++++-------
>  include/uapi/linux/kvm.h                |   7 +-
>  7 files changed, 378 insertions(+), 109 deletions(-)
> 
> -- 
> 2.33.0.rc1.237.g0d66db33f3-goog
>