Isaku Yamahata
2008-Apr-01 00:45 UTC
[PATCH 008/112] xen: add resend_irq_on_evtchn() definition into events.c.
Define resend_irq_on_evtchn() which ia64/xen uses. Although it isn't used by current x86/xen code, it's arch generic so that put it into common code. Signed-off-by: Isaku Yamahata <yamahata at valinux.co.jp> --- drivers/xen/events.c | 16 ++++++++++++++++ include/xen/events.h | 1 + 2 files changed, 17 insertions(+), 0 deletions(-) diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 2396b44..4f0f22b 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -586,6 +586,22 @@ static void set_affinity_irq(unsigned irq, cpumask_t dest) rebind_irq_to_cpu(irq, tcpu); } +int resend_irq_on_evtchn(unsigned int irq) +{ + int masked, evtchn = evtchn_from_irq(irq); + struct shared_info *s = HYPERVISOR_shared_info; + + if (!VALID_EVTCHN(evtchn)) + return 1; + + masked = sync_test_and_set_bit(evtchn, s->evtchn_mask); + sync_set_bit(evtchn, s->evtchn_pending); + if (!masked) + unmask_evtchn(evtchn); + + return 1; +} + static void enable_dynirq(unsigned int irq) { int evtchn = evtchn_from_irq(irq); diff --git a/include/xen/events.h b/include/xen/events.h index d99a3e0..acd8e06 100644 --- a/include/xen/events.h +++ b/include/xen/events.h @@ -31,6 +31,7 @@ int bind_ipi_to_irqhandler(enum ipi_vector ipi, void unbind_from_irqhandler(unsigned int irq, void *dev_id); void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector); +int resend_irq_on_evtchn(unsigned int irq); static inline void notify_remote_via_evtchn(int port) { -- 1.5.3 -- yamahata
Reasonably Related Threads
- [PATCH 008/112] xen: add resend_irq_on_evtchn() definition into events.c.
- [PATCH 007/112] Xen: Make events.c portable for ia64/xen support.
- [PATCH 007/112] Xen: Make events.c portable for ia64/xen support.
- Re: [RFC PATCH 24/33] Add support for Xen event channels.
- Kernel panic is occured when multi VMs is booting togeter