On Tue, 2011-02-01 at 17:55 -0200, Glauber Costa wrote:
>
> update_rq_clock_task still have to keep track of what was the last steal
> time value we saw, in the same way it does for irq.
Right, the CONFIG_SCHED_PARAVIRT patch I sent earlier adds a
prev_steal_time member to struct rq for this purpose.
> One option is to
> call update_rq_clock_task from inside kvm-code, but I don't really like
> it very much.
Why would you need to call anything from the kvm code?
Simply make u64 steal_time_clock(int cpu) a paravirt function with u64
native_steal_time_clock(int cpu) { return 0ULL; }. Possibly avoid the
whole CONFIG_SCHED_PARAVIRT block in update_rq_clock_task() for !
paravirt guests.
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