From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
To: <linux-kernel@vger.kernel.org>
Cc: <xen-devel@lists.xensource.com>,
<Stefano.Stabellini@eu.citrix.com>, <Ian.Campbell@citrix.com>,
<tim@xen.org>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: [PATCH WIP 6/6] xen/arm: enable evtchn irqs
Date: Fri, 22 Jun 2012 17:14:45 +0100 [thread overview]
Message-ID: <1340381685-22529-6-git-send-email-stefano.stabellini@eu.citrix.com> (raw)
In-Reply-To: <1340381685-22529-1-git-send-email-stefano.stabellini@eu.citrix.com>
On ARM irqs are not enabled by default:
- call enable_percpu_irq for IRQ_EVTCHN_CALLBACK;
- set the IRQF_VALID flag for the other irqs bound to evtchns. It causes
IRQ_NOAUTOEN to be set and as a consequence irq_unmask is going to be
called when a xenbus driver calls request_irq.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
drivers/xen/events.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 0132505..ca92755 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -53,6 +53,7 @@
#include <xen/interface/hvm/params.h>
#include <xen/interface/physdev.h>
#include <xen/interface/sched.h>
+#include <asm/hw_irq.h>
/*
* This lock protects updates to the following mapping and reference-count
@@ -827,6 +828,7 @@ int bind_evtchn_to_irq(unsigned int evtchn)
xen_irq_info_evtchn_init(irq, evtchn);
}
+ set_irq_flags(irq, IRQF_VALID);
out:
mutex_unlock(&irq_mapping_update_lock);
@@ -1751,6 +1753,7 @@ int __init xen_init_IRQ_arm(void)
if (rc) {
printk(KERN_ERR "Error requesting IRQ %d\n", IRQ_EVTCHN_CALLBACK);
}
+ enable_percpu_irq(IRQ_EVTCHN_CALLBACK, 0);
return rc;
}
core_initcall(xen_init_IRQ_arm);
--
1.7.2.5
next prev parent reply other threads:[~2012-06-22 16:15 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-22 16:13 [PATCH WIP 0/6] xen/arm: PV console support Stefano Stabellini
2012-06-22 16:14 ` [PATCH WIP 1/6] xen/arm: fix the shared_info and vcpu_info structs Stefano Stabellini
2012-06-22 16:14 ` [PATCH WIP 2/6] xen/arm: Introduce xen_guest_init Stefano Stabellini
2012-07-09 14:45 ` [Xen-devel] " Konrad Rzeszutek Wilk
2012-07-09 15:08 ` David Vrabel
2012-07-12 11:49 ` Roger Pau Monne
2012-07-12 12:04 ` David Vrabel
2012-07-12 17:50 ` Stefano Stabellini
2012-07-12 18:00 ` Ian Campbell
2012-07-13 16:38 ` Stefano Stabellini
2012-06-22 16:14 ` [PATCH WIP 3/6] xen/arm: get privilege status Stefano Stabellini
2012-07-09 14:41 ` [Xen-devel] " Konrad Rzeszutek Wilk
2012-07-12 17:43 ` Stefano Stabellini
2012-06-22 16:14 ` [PATCH WIP 4/6] xen/arm: implement hvm_op Stefano Stabellini
2012-06-22 16:14 ` [PATCH WIP 5/6] xen: fix unmask_evtchn for HVM guests Stefano Stabellini
2012-06-22 16:14 ` Stefano Stabellini [this message]
2012-07-09 14:40 ` [PATCH WIP 6/6] xen/arm: enable evtchn irqs Konrad Rzeszutek Wilk
2012-07-13 17:14 ` Stefano Stabellini
2012-07-16 14:57 ` Konrad Rzeszutek Wilk
2012-07-18 16:51 ` Stefano Stabellini
2012-07-19 23:30 ` Konrad Rzeszutek Wilk
2012-07-20 11:09 ` Stefano Stabellini
2012-07-20 14:36 ` [Xen-devel] " Konrad Rzeszutek Wilk
2012-07-20 15:23 ` Stefano Stabellini
2012-07-25 18:43 ` Konrad Rzeszutek Wilk
2012-07-26 13:53 ` Stefano Stabellini
2012-06-22 16:26 ` [PATCH] xen/events: fix unmask_evtchn for PV on HVM guests Stefano Stabellini
2012-07-09 14:19 ` [Xen-devel] " Konrad Rzeszutek Wilk
2012-07-13 17:48 ` Stefano Stabellini
2012-07-16 15:14 ` Konrad Rzeszutek Wilk
2012-07-18 18:17 ` Stefano Stabellini
2012-08-22 11:20 ` Stefano Stabellini
2012-08-22 14:03 ` Konrad Rzeszutek Wilk
2012-08-22 15:01 ` Stefano Stabellini
2012-07-09 14:41 ` [PATCH WIP 1/6] xen/arm: fix the shared_info and vcpu_info structs Konrad Rzeszutek Wilk
2012-07-13 16:48 ` Stefano Stabellini
2012-07-13 17:08 ` Ian Campbell
2012-07-16 14:57 ` Konrad Rzeszutek Wilk
2012-07-18 16:46 ` Stefano Stabellini
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