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authorPaul Durrant <paul.durrant@citrix.com>2019-04-08 16:16:16 +0100
committerAnthony PERARD <anthony.perard@citrix.com>2019-06-24 10:42:29 +0100
commit83361a8a1f932cfac8ae4a5b86e935ad6ab1c528 (patch)
tree47c958b26d713af8cc5d439f28b6d6c063affeaf /hw
parentc0b336ea19a93801ee2333be525d0473d28a10f8 (diff)
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xen-bus: allow AioContext to be specified for each event channel
This patch adds an AioContext parameter to xen_device_bind_event_channel() and then uses aio_set_fd_handler() to set the callback rather than qemu_set_fd_handler(). Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Reviewed-by: Anthony PERARD <anthony.perard@citrix.com> Message-Id: <20190408151617.13025-3-paul.durrant@citrix.com> [Call aio_set_fd_handler() with is_external=true] Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/block/dataplane/xen-block.c2
-rw-r--r--hw/xen/xen-bus.c10
2 files changed, 8 insertions, 4 deletions
diff --git a/hw/block/dataplane/xen-block.c b/hw/block/dataplane/xen-block.c
index 6da5c77..aadca75 100644
--- a/hw/block/dataplane/xen-block.c
+++ b/hw/block/dataplane/xen-block.c
@@ -806,7 +806,7 @@ void xen_block_dataplane_start(XenBlockDataPlane *dataplane,
}
dataplane->event_channel =
- xen_device_bind_event_channel(xendev, event_channel,
+ xen_device_bind_event_channel(xendev, dataplane->ctx, event_channel,
xen_block_dataplane_event, dataplane,
&local_err);
if (local_err) {
diff --git a/hw/xen/xen-bus.c b/hw/xen/xen-bus.c
index 43a90ca..2210526 100644
--- a/hw/xen/xen-bus.c
+++ b/hw/xen/xen-bus.c
@@ -925,6 +925,7 @@ done:
struct XenEventChannel {
QLIST_ENTRY(XenEventChannel) list;
+ AioContext *ctx;
xenevtchn_handle *xeh;
evtchn_port_t local_port;
XenEventHandler handler;
@@ -944,6 +945,7 @@ static void xen_device_event(void *opaque)
}
XenEventChannel *xen_device_bind_event_channel(XenDevice *xendev,
+ AioContext *ctx,
unsigned int port,
XenEventHandler handler,
void *opaque, Error **errp)
@@ -969,8 +971,9 @@ XenEventChannel *xen_device_bind_event_channel(XenDevice *xendev,
channel->handler = handler;
channel->opaque = opaque;
- qemu_set_fd_handler(xenevtchn_fd(channel->xeh), xen_device_event, NULL,
- channel);
+ channel->ctx = ctx;
+ aio_set_fd_handler(channel->ctx, xenevtchn_fd(channel->xeh), true,
+ xen_device_event, NULL, NULL, channel);
QLIST_INSERT_HEAD(&xendev->event_channels, channel, list);
@@ -1011,7 +1014,8 @@ void xen_device_unbind_event_channel(XenDevice *xendev,
QLIST_REMOVE(channel, list);
- qemu_set_fd_handler(xenevtchn_fd(channel->xeh), NULL, NULL, NULL);
+ aio_set_fd_handler(channel->ctx, xenevtchn_fd(channel->xeh), true,
+ NULL, NULL, NULL, NULL);
if (xenevtchn_unbind(channel->xeh, channel->local_port) < 0) {
error_setg_errno(errp, errno, "xenevtchn_unbind failed");