v1 posted here: https://patchwork.kernel.org/patch/9214993/
The motivation for this patch is in patch 2 (or you can read it from v1). This version is larger but the hooks into apic.c are cleaner than in v1. Instead of arranging for kvmclock to replace only a small part of setup_apic_timer, it registers its own clockevent. The downside is that kvmclock now needs to hook into the LAPIC timer interrupt to invoke the event_handler of the new clockevent, but this is pretty straightforward with a new pvop (assuming the introduction of new pvops is straightforward at all). Thanks, Paolo Paolo Bonzini (2): x86: paravirt: add local_apic_timer_interrupt to pv_ops x86, kvm: use kvmclock to compute TSC deadline value arch/x86/include/asm/apic.h | 2 + arch/x86/include/asm/paravirt.h | 5 ++ arch/x86/include/asm/paravirt_types.h | 1 + arch/x86/kernel/apic/apic.c | 4 +- arch/x86/kernel/kvmclock.c | 156 ++++++++++++++++++++++++++++++++++ arch/x86/kernel/paravirt.c | 1 + 6 files changed, 167 insertions(+), 2 deletions(-) -- 1.8.3.1
