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HYPERVISOR_set_timer_op() doesn't seem to work right on a NetBSD Xen3 dom0, 

the dom0 is getting a continous stream of clock interrupts. As we want an
interrupt every hz anyway, just use HYPERVISOR_yield() instead.
This commit is contained in:
bouyer 2006-05-27 19:57:15 +00:00
parent 498d4ec7e6
commit 2a649c320b
1 changed files with 11 additions and 3 deletions
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14
sys/arch/xen/xen/clock.c
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@ -1,4 +1,4 @@
/* $NetBSD: clock.c,v 1.23 2006/05/05 19:38:38 jld Exp $ */
/* $NetBSD: clock.c,v 1.24 2006/05/27 19:57:15 bouyer Exp $ */
/*
*
@ -34,7 +34,7 @@
#include "opt_xen.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: clock.c,v 1.23 2006/05/05 19:38:38 jld Exp $");
__KERNEL_RCSID(0, "$NetBSD: clock.c,v 1.24 2006/05/27 19:57:15 bouyer Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -478,7 +478,14 @@ setstatclockrate(int arg)
void
idle_block(void)
{
#ifdef XEN3
/*
* set_timer_op doesn't doesn't seem to work right for us, the kernel
* gets a continous flow of interrupts. As we're going to request one
* interrupt every hz, HYPERVISOR_yield() is as good anyway.
*/
HYPERVISOR_yield();
#else
/*
* We set the timer to when we expect the next timer
* interrupt. We could set the timer to later if we could
@ -487,4 +494,5 @@ idle_block(void)
*/
if (HYPERVISOR_set_timer_op(processed_system_time + NS_PER_TICK) == 0)
HYPERVISOR_block();
#endif
}