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| author | Keir Fraser <keir@xensource.com> | 2007-11-05 10:09:10 +0000 |
|---|---|---|
| committer | Keir Fraser <keir@xensource.com> | 2007-11-05 10:09:10 +0000 |
| commit | 8e801055bf79e1b4dfda51518e70eb629bd9e159 (patch) | |
| tree | fdb8a36f3a4e9ab13fdb31f24706caa4b6f5fc9f /xen/arch/x86/hvm/vpt.c | |
| parent | 82f13984fbb85948c0090329ce2133e98d533738 (diff) | |
| download | xen-8e801055bf79e1b4dfda51518e70eb629bd9e159.tar.gz xen-8e801055bf79e1b4dfda51518e70eb629bd9e159.tar.bz2 xen-8e801055bf79e1b4dfda51518e70eb629bd9e159.zip | |
x86, hvm: More fixes to no-missed-tick-accounting mode.
Signed-off-by: Keir Fraser <keir@xensource.com>
Diffstat (limited to 'xen/arch/x86/hvm/vpt.c')
| -rw-r--r-- | xen/arch/x86/hvm/vpt.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/xen/arch/x86/hvm/vpt.c b/xen/arch/x86/hvm/vpt.c index 49614997df..b1bd111f19 100644 --- a/xen/arch/x86/hvm/vpt.c +++ b/xen/arch/x86/hvm/vpt.c @@ -47,21 +47,26 @@ static void pt_unlock(struct periodic_time *pt) static void pt_process_missed_ticks(struct periodic_time *pt) { - s_time_t missed_ticks; - - if ( mode_is(pt->vcpu->domain, no_missed_tick_accounting) ) - return; + s_time_t missed_ticks, now = NOW(); if ( pt->one_shot ) return; - missed_ticks = NOW() - pt->scheduled; + missed_ticks = now - pt->scheduled; if ( missed_ticks <= 0 ) return; - missed_ticks = missed_ticks / (s_time_t) pt->period + 1; - pt->pending_intr_nr += missed_ticks; - pt->scheduled += missed_ticks * pt->period; + if ( mode_is(pt->vcpu->domain, no_missed_tick_accounting) ) + { + pt->pending_intr_nr = 1; + pt->scheduled = now + pt->scheduled; + } + else + { + missed_ticks = missed_ticks / (s_time_t) pt->period + 1; + pt->pending_intr_nr += missed_ticks; + pt->scheduled += missed_ticks * pt->period; + } } static void pt_freeze_time(struct vcpu *v) |