[Xen-changelog] [xen-unstable] libxc: NetBSD: implement xc_evtchn_bind_unbound_port.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Ian Campbell <ian.campbell@xxxxxxxxxx>
# Date 1291293181 0
# Node ID ea4d24457d91eaeef715e8169c86a5d7ee0f1bde
# Parent  7446a2a78262cd06851718401ed3ca69f98ca81b
libxc: NetBSD: implement xc_evtchn_bind_unbound_port.

Doesn't actually appear to be used anywhere but is defined for other
OSes.

The NetBSD evtchn.h contains comments "Return allocated port" for
several ioctls which currently return the allocated port as a member
of the argument structure and not as the ioctl return value (I think
this is a cut and paste error).

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Acked-by: Christoph Egger <Christoph.Egger@xxxxxxx>
committer: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
---
 tools/include/xen-sys/NetBSD/evtchn.h |    3 ---
 tools/libxc/xc_netbsd.c               |   15 +++++++++++++++
 2 files changed, 15 insertions(+), 3 deletions(-)

diff -r 7446a2a78262 -r ea4d24457d91 tools/include/xen-sys/NetBSD/evtchn.h
--- a/tools/include/xen-sys/NetBSD/evtchn.h     Fri Dec 10 19:38:30 2010 +0000
+++ b/tools/include/xen-sys/NetBSD/evtchn.h     Thu Dec 02 12:33:01 2010 +0000
@@ -33,7 +33,6 @@
 
 /*
  * Bind a fresh port to VIRQ @virq.
- * Return allocated port.
  */
 #define IOCTL_EVTCHN_BIND_VIRQ                         \
        _IOWR('E', 4, struct ioctl_evtchn_bind_virq)
@@ -44,7 +43,6 @@ struct ioctl_evtchn_bind_virq {
 
 /*
  * Bind a fresh port to remote <@remote_domain, @remote_port>.
- * Return allocated port.
  */
 #define IOCTL_EVTCHN_BIND_INTERDOMAIN                  \
        _IOWR('E', 5, struct ioctl_evtchn_bind_interdomain)
@@ -55,7 +53,6 @@ struct ioctl_evtchn_bind_interdomain {
 
 /*
  * Allocate a fresh port for binding to @remote_domain.
- * Return allocated port.
  */
 #define IOCTL_EVTCHN_BIND_UNBOUND_PORT                 \
        _IOWR('E', 6, struct ioctl_evtchn_bind_unbound_port)
diff -r 7446a2a78262 -r ea4d24457d91 tools/libxc/xc_netbsd.c
--- a/tools/libxc/xc_netbsd.c   Fri Dec 10 19:38:30 2010 +0000
+++ b/tools/libxc/xc_netbsd.c   Thu Dec 02 12:33:01 2010 +0000
@@ -203,6 +203,21 @@ int xc_evtchn_notify(int xce_handle, evt
     notify.port = port;
 
     return ioctl(xce_handle, IOCTL_EVTCHN_NOTIFY, &notify);
+}
+
+evtchn_port_or_error_t
+xc_evtchn_bind_unbound_port(int xce_handle, int domid)
+{
+    struct ioctl_evtchn_bind_unbound_port bind;
+    int ret;
+
+    bind.remote_domain = domid;
+
+    ret = ioctl(xce_handle, IOCTL_EVTCHN_BIND_UNBOUND_PORT, &bind);
+    if (ret == 0)
+       return bind.port;
+    else
+       return -1;
 }
 
 evtchn_port_or_error_t

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