[Devel] [PATCH 00/16] add tsc_scale and fix VM pause/resume

[Denis V. Lunev]

On 11/11/2016 09:47 AM, Roman Kagan wrote:
> From: Denis Plotnikov <dplotnikov at virtuozzo.com>
>
> The set of patches:
> 1. adds tsc_scaling functionality for VMX
> 2. generalizes a number of functions responsible for tsc writing and
>    reading
> 3. fix VM pause/resume issue #PSBM-54338 by switching to using
>    of cached tsc_offset
>
> Haozhong Zhang (12):
>   KVM: x86: Collect information for setting TSC scaling ratio
>   KVM: x86: Add a common TSC scaling ratio field in kvm_vcpu_arch
>   KVM: x86: Add a common TSC scaling function
>   KVM: x86: Replace call-back set_tsc_khz() with a common function
>   KVM: x86: Replace call-back compute_tsc_offset() with a common
>     function
>   KVM: x86: Move TSC scaling logic out of call-back adjust_tsc_offset()
>   KVM: x86: Move TSC scaling logic out of call-back read_l1_tsc()
>   KVM: x86: Use the correct vcpu's TSC rate to compute time scale
>   KVM: VMX: Enable and initialize VMX TSC scaling
>   KVM: VMX: Setup TSC scaling ratio when a vcpu is loaded
>   KVM: VMX: Use a scaled host TSC for guest readings of MSR_IA32_TSC
>   KVM: VMX: Dump TSC multiplier in dump_vmcs()
>
> Luiz Capitulino (2):
>   kvm: x86: add tsc_offset field to struct kvm_vcpu_arch
>   kvm: x86: drop read_tsc_offset()
>
> Paolo Bonzini (2):
>   KVM: x86: declare a few variables as __read_mostly
>   KVM: x86: drop TSC offsetting kvm_x86_ops to fix KVM_GET/SET_CLOCK
>
>  arch/x86/include/asm/kvm_host.h |  28 ++-----
>  arch/x86/include/asm/vmx.h      |   4 +-
>  arch/x86/kvm/hyperv.c           |   2 +-
>  arch/x86/kvm/lapic.c            |   4 +-
>  arch/x86/kvm/svm.c              | 144 +++----------------------------
>  arch/x86/kvm/vmx.c              | 103 ++++++++---------------
>  arch/x86/kvm/x86.c              | 182 ++++++++++++++++++++++++++++++++++------
>  7 files changed, 214 insertions(+), 253 deletions(-)
>
Kostya, when this can be merged?
This patchset is for blocker.

For 7.3 branch you should get just last patch.

Den