Pvclock fixes , version two
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From: Zachary Amsden on 5 May 2010 00:00 On 05/03/2010 05:52 AM, Glauber Costa wrote: > Here is a new version of this series. > > I am definitely leaving any warp calculations out, as Jeremy wisely > points out that Chuck Norris should perish before we warp. > > Also, in this series, I am using KVM_GET_SUPPORTED_CPUID to export > our features to userspace, as avi suggets. (patch 4/7), and starting > to use the flag that indicates possible tsc stability (patch 7/7), although > it is still off by default. > > Glauber Costa (7): > Enable pvclock flags in vcpu_time_info structure > Add a global synchronization point for pvclock > change msr numbers for kvmclock > export paravirtual cpuid flags in KVM_GET_SUPPORTED_CPUID > Try using new kvm clock msrs > don't compute pvclock adjustments if we trust the tsc > Tell the guest we'll warn it about tsc stability > > arch/x86/include/asm/kvm_para.h | 13 ++++++++ > arch/x86/include/asm/pvclock-abi.h | 4 ++- > arch/x86/include/asm/pvclock.h | 1 + > arch/x86/kernel/kvmclock.c | 56 ++++++++++++++++++++++------------- > arch/x86/kernel/pvclock.c | 37 +++++++++++++++++++++++ > arch/x86/kvm/x86.c | 37 +++++++++++++++++++++++- > 6 files changed, 125 insertions(+), 23 deletions(-) > > Acked-by: Zachary Amsden <zamsden(a)redhat.com> I'll rebase on top of these if they get pulled. And obviously, there is no point in checking for warp if Chuck Norris has perished. I happen to have a special place in my heart for nunchaku masters despite the fact that this created a generation of teenagers who insisted they were called numb-chucks. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |