Marcelo Tosatti b48aa97e38 KVM: x86: require matched TSC offsets for master clock ... With master clock, a pvclock clock read calculates: ret = system_timestamp + [ (rdtsc + tsc_offset) - tsc_timestamp ] Where 'rdtsc' is the host TSC. system_timestamp and tsc_timestamp are unique, one tuple per VM: the "master clock". Given a host with synchronized TSCs, its obvious that guest TSC must be matched for the above to guarantee monotonicity. Allow master clock usage only if guest TSCs are synchronized. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>		2012-11-27 23:29:15 -02:00
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asm	KVM: x86: require matched TSC offsets for master clock	2012-11-27 23:29:15 -02:00
uapi/asm	UAPI: (Scripted) Set up UAPI Kbuild files	2012-10-02 18:01:35 +01:00