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-rw-r--r--drivers/xen/events/events_base.c41
-rw-r--r--drivers/xen/pvcalls-back.c4
-rw-r--r--drivers/xen/xen-pciback/xenbus.c2
-rw-r--r--drivers/xen/xen-scsiback.c2
4 files changed, 28 insertions, 21 deletions
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index e850f79351cb..b249f2d6b0cc 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -63,6 +63,7 @@
#include <xen/interface/physdev.h>
#include <xen/interface/sched.h>
#include <xen/interface/vcpu.h>
+#include <xen/xenbus.h>
#include <asm/hw_irq.h>
#include "events_internal.h"
@@ -115,6 +116,7 @@ struct irq_info {
unsigned char flags;
uint16_t domid;
} pirq;
+ struct xenbus_device *interdomain;
} u;
};
@@ -313,11 +315,16 @@ static int xen_irq_info_common_setup(struct irq_info *info,
}
static int xen_irq_info_evtchn_setup(unsigned irq,
- evtchn_port_t evtchn)
+ evtchn_port_t evtchn,
+ struct xenbus_device *dev)
{
struct irq_info *info = info_for_irq(irq);
+ int ret;
- return xen_irq_info_common_setup(info, irq, IRQT_EVTCHN, evtchn, 0);
+ ret = xen_irq_info_common_setup(info, irq, IRQT_EVTCHN, evtchn, 0);
+ info->u.interdomain = dev;
+
+ return ret;
}
static int xen_irq_info_ipi_setup(unsigned cpu,
@@ -1116,7 +1123,8 @@ int xen_pirq_from_irq(unsigned irq)
}
EXPORT_SYMBOL_GPL(xen_pirq_from_irq);
-static int bind_evtchn_to_irq_chip(evtchn_port_t evtchn, struct irq_chip *chip)
+static int bind_evtchn_to_irq_chip(evtchn_port_t evtchn, struct irq_chip *chip,
+ struct xenbus_device *dev)
{
int irq;
int ret;
@@ -1136,7 +1144,7 @@ static int bind_evtchn_to_irq_chip(evtchn_port_t evtchn, struct irq_chip *chip)
irq_set_chip_and_handler_name(irq, chip,
handle_edge_irq, "event");
- ret = xen_irq_info_evtchn_setup(irq, evtchn);
+ ret = xen_irq_info_evtchn_setup(irq, evtchn, dev);
if (ret < 0) {
__unbind_from_irq(irq);
irq = ret;
@@ -1163,7 +1171,7 @@ out:
int bind_evtchn_to_irq(evtchn_port_t evtchn)
{
- return bind_evtchn_to_irq_chip(evtchn, &xen_dynamic_chip);
+ return bind_evtchn_to_irq_chip(evtchn, &xen_dynamic_chip, NULL);
}
EXPORT_SYMBOL_GPL(bind_evtchn_to_irq);
@@ -1212,27 +1220,27 @@ static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
return irq;
}
-static int bind_interdomain_evtchn_to_irq_chip(unsigned int remote_domain,
+static int bind_interdomain_evtchn_to_irq_chip(struct xenbus_device *dev,
evtchn_port_t remote_port,
struct irq_chip *chip)
{
struct evtchn_bind_interdomain bind_interdomain;
int err;
- bind_interdomain.remote_dom = remote_domain;
+ bind_interdomain.remote_dom = dev->otherend_id;
bind_interdomain.remote_port = remote_port;
err = HYPERVISOR_event_channel_op(EVTCHNOP_bind_interdomain,
&bind_interdomain);
return err ? : bind_evtchn_to_irq_chip(bind_interdomain.local_port,
- chip);
+ chip, dev);
}
-int bind_interdomain_evtchn_to_irq_lateeoi(unsigned int remote_domain,
+int bind_interdomain_evtchn_to_irq_lateeoi(struct xenbus_device *dev,
evtchn_port_t remote_port)
{
- return bind_interdomain_evtchn_to_irq_chip(remote_domain, remote_port,
+ return bind_interdomain_evtchn_to_irq_chip(dev, remote_port,
&xen_lateeoi_chip);
}
EXPORT_SYMBOL_GPL(bind_interdomain_evtchn_to_irq_lateeoi);
@@ -1345,7 +1353,7 @@ static int bind_evtchn_to_irqhandler_chip(evtchn_port_t evtchn,
{
int irq, retval;
- irq = bind_evtchn_to_irq_chip(evtchn, chip);
+ irq = bind_evtchn_to_irq_chip(evtchn, chip, NULL);
if (irq < 0)
return irq;
retval = request_irq(irq, handler, irqflags, devname, dev_id);
@@ -1380,14 +1388,13 @@ int bind_evtchn_to_irqhandler_lateeoi(evtchn_port_t evtchn,
EXPORT_SYMBOL_GPL(bind_evtchn_to_irqhandler_lateeoi);
static int bind_interdomain_evtchn_to_irqhandler_chip(
- unsigned int remote_domain, evtchn_port_t remote_port,
+ struct xenbus_device *dev, evtchn_port_t remote_port,
irq_handler_t handler, unsigned long irqflags,
const char *devname, void *dev_id, struct irq_chip *chip)
{
int irq, retval;
- irq = bind_interdomain_evtchn_to_irq_chip(remote_domain, remote_port,
- chip);
+ irq = bind_interdomain_evtchn_to_irq_chip(dev, remote_port, chip);
if (irq < 0)
return irq;
@@ -1400,14 +1407,14 @@ static int bind_interdomain_evtchn_to_irqhandler_chip(
return irq;
}
-int bind_interdomain_evtchn_to_irqhandler_lateeoi(unsigned int remote_domain,
+int bind_interdomain_evtchn_to_irqhandler_lateeoi(struct xenbus_device *dev,
evtchn_port_t remote_port,
irq_handler_t handler,
unsigned long irqflags,
const char *devname,
void *dev_id)
{
- return bind_interdomain_evtchn_to_irqhandler_chip(remote_domain,
+ return bind_interdomain_evtchn_to_irqhandler_chip(dev,
remote_port, handler, irqflags, devname,
dev_id, &xen_lateeoi_chip);
}
@@ -1679,7 +1686,7 @@ void rebind_evtchn_irq(evtchn_port_t evtchn, int irq)
so there should be a proper type */
BUG_ON(info->type == IRQT_UNBOUND);
- (void)xen_irq_info_evtchn_setup(irq, evtchn);
+ (void)xen_irq_info_evtchn_setup(irq, evtchn, NULL);
mutex_unlock(&irq_mapping_update_lock);
diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c
index a7d293fa8d14..b47fd8435061 100644
--- a/drivers/xen/pvcalls-back.c
+++ b/drivers/xen/pvcalls-back.c
@@ -348,7 +348,7 @@ static struct sock_mapping *pvcalls_new_active_socket(
map->bytes = page;
ret = bind_interdomain_evtchn_to_irqhandler_lateeoi(
- fedata->dev->otherend_id, evtchn,
+ fedata->dev, evtchn,
pvcalls_back_conn_event, 0, "pvcalls-backend", map);
if (ret < 0)
goto out;
@@ -948,7 +948,7 @@ static int backend_connect(struct xenbus_device *dev)
goto error;
}
- err = bind_interdomain_evtchn_to_irq_lateeoi(dev->otherend_id, evtchn);
+ err = bind_interdomain_evtchn_to_irq_lateeoi(dev, evtchn);
if (err < 0)
goto error;
fedata->irq = err;
diff --git a/drivers/xen/xen-pciback/xenbus.c b/drivers/xen/xen-pciback/xenbus.c
index e7c692cfb2cf..5188f02e75fb 100644
--- a/drivers/xen/xen-pciback/xenbus.c
+++ b/drivers/xen/xen-pciback/xenbus.c
@@ -124,7 +124,7 @@ static int xen_pcibk_do_attach(struct xen_pcibk_device *pdev, int gnt_ref,
pdev->sh_info = vaddr;
err = bind_interdomain_evtchn_to_irqhandler_lateeoi(
- pdev->xdev->otherend_id, remote_evtchn, xen_pcibk_handle_event,
+ pdev->xdev, remote_evtchn, xen_pcibk_handle_event,
0, DRV_NAME, pdev);
if (err < 0) {
xenbus_dev_fatal(pdev->xdev, err,
diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c
index 9cd4fe8ce680..f3024942fbdf 100644
--- a/drivers/xen/xen-scsiback.c
+++ b/drivers/xen/xen-scsiback.c
@@ -799,7 +799,7 @@ static int scsiback_init_sring(struct vscsibk_info *info, grant_ref_t ring_ref,
sring = (struct vscsiif_sring *)area;
BACK_RING_INIT(&info->ring, sring, PAGE_SIZE);
- err = bind_interdomain_evtchn_to_irq_lateeoi(info->domid, evtchn);
+ err = bind_interdomain_evtchn_to_irq_lateeoi(info->dev, evtchn);
if (err < 0)
goto unmap_page;
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-28 09:36:51 +0300