On Mon, Sep 19, 2016 at 01:39:13PM +0200, Paolo Bonzini wrote: > Lately tsc page was implemented but filled with empty > values. This patch setup tsc page scale and offset based > on vcpu tsc, tsc_khz and HV_X64_MSR_TIME_REF_COUNT value. > > The valid tsc page drops HV_X64_MSR_TIME_REF_COUNT msr > reads count to zero which potentially improves performance. > > Signed-off-by: Andrey Smetanin <asmetanin@xxxxxxxxxxxxx> > Reviewed-by: Peter Hornyack <peterhornyack@xxxxxxxxxx> > CC: Paolo Bonzini <pbonzini@xxxxxxxxxx> > CC: Radim Krčmář <rkrcmar@xxxxxxxxxx> > CC: Roman Kagan <rkagan@xxxxxxxxxxxxx> > CC: Denis V. Lunev <den@xxxxxxxxxx> > [Computation of TSC page parameters rewritten to use the Linux timekeeper > parameters. - Paolo] > Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> > --- > arch/x86/include/asm/kvm_host.h | 2 + > arch/x86/kvm/hyperv.c | 162 ++++++++++++++++++++++++++++++++++++---- > arch/x86/kvm/hyperv.h | 3 + > arch/x86/kvm/x86.c | 8 +- > 4 files changed, 155 insertions(+), 20 deletions(-) Reviewed-by: Roman Kagan <rkagan@xxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
