This implements the plan that we discussed at KVM Forum. Patch 3 implements a new function that returns the current value of kvmclock as read by the guest. The function is then used to provide the Hyper-V time reference counter. Now that the reference counter is synchronized with kvmclock, the TSC page can be supported nicely.
Paolo Paolo Bonzini (4): KVM: x86: always fill in vcpu->arch.hv_clock KVM: x86: initialize kvmclock_offset KVM: x86: introduce get_kvmclock_ns KVM: x86: Hyper-V tsc page setup arch/x86/entry/vdso/vclock_gettime.c | 2 +- arch/x86/include/asm/pvclock.h | 5 +- arch/x86/kernel/pvclock.c | 2 +- arch/x86/kvm/hyperv.c | 143 +++++++++++++++++++++++++++---- arch/x86/kvm/hyperv.h | 3 + arch/x86/kvm/x86.c | 158 +++++++++++++++++++++-------------- arch/x86/kvm/x86.h | 6 +- 7 files changed, 232 insertions(+), 87 deletions(-) -- 1.8.3.1
