Marcelo Tosatti 54750f2cf0 KVM: x86: workaround SuSE's 2.6.16 pvclock vs masterclock issue ... SuSE's 2.6.16 kernel fails to boot if the delta between tsc_timestamp and rdtsc is larger than a given threshold: * If we get more than the below threshold into the future, we rerequest * the real time from the host again which has only little offset then * that we need to adjust using the TSC. * * For now that threshold is 1/5th of a jiffie. That should be good * enough accuracy for completely broken systems, but also give us swing * to not call out to the host all the time. */ #define PVCLOCK_DELTA_MAX ((1000000000ULL / HZ) / 5) Disable masterclock support (which increases said delta) in case the boot vcpu does not use MSR_KVM_SYSTEM_TIME_NEW. Upstreams kernels which support pvclock vsyscalls (and therefore make use of PVCLOCK_STABLE_BIT) use MSR_KVM_SYSTEM_TIME_NEW. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2015-01-20 20:38:39 +01:00
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asm	KVM: x86: workaround SuSE's 2.6.16 pvclock vs masterclock issue	2015-01-20 20:38:39 +01:00
uapi/asm	KVM: nVMX: Improve nested msr switch checking	2015-01-08 22:45:15 +01:00