Jeremy Fitzhardinge wrote:
Subject: Add a sched_clock paravirt_op
The tsc-based get_scheduled_cycles interface is not a good match for
Xen's runstate accounting, which reports everything in nanoseconds.
This patch replaces this interface with a sched_clock interface, which
matches both Xen and VMI's requirements.
In order to do this, we:
1. replace get_scheduled_cycles with sched_clock
2. hoist cycles_2_ns into a common header
3. update vmi accordingly
One thing to note: because sched_clock is implemented as a weak function in
kernel/sched.c, we must define a real function in order to override this weak
binding. This means the usual paravirt_ops technique of using an inline
function won't work in this case.
Acked-by: Zachary Amsden <[EMAIL PROTECTED]>
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