[Xen-devel] [PATCH 1/2] libxc: Add xc_domain_unbind_msi_irq

[Yuji Shimada <shimada-yxb@xxxxxxxxxxxxxxx>]

This patch adds xc_domain_unbind_msi_irq to libxc.
The function is needed to unbind MSI/MSI-X on transition from D3hot
state to D0 state.

Thanks,
--
Yuji Shimada.


Signed-off-by: Yuji Shimada <shimada-yxb@xxxxxxxxxxxxxxx>

diff -r 40d9d9ff435a tools/libxc/xc_domain.c
--- a/tools/libxc/xc_domain.c   Thu Jan 15 12:54:31 2009 +0000
+++ b/tools/libxc/xc_domain.c   Wed Jan 21 11:22:21 2009 +0900
@@ -909,6 +909,32 @@
     return rc;
 }
 
+int xc_domain_unbind_msi_irq(
+    int xc_handle,
+    uint32_t domid,
+    uint32_t gvec,
+    uint32_t pirq,
+    uint32_t gflags)
+{
+    int rc;
+    xen_domctl_bind_pt_irq_t *bind;
+
+    DECLARE_DOMCTL;
+
+    domctl.cmd = XEN_DOMCTL_unbind_pt_irq;
+    domctl.domain = (domid_t)domid;
+
+    bind = &(domctl.u.bind_pt_irq);
+    bind->hvm_domid = domid;
+    bind->irq_type = PT_IRQ_TYPE_MSI;
+    bind->machine_irq = pirq;
+    bind->u.msi.gvec = gvec;
+    bind->u.msi.gflags = gflags;
+
+    rc = do_domctl(xc_handle, &domctl);
+    return rc;
+}
+
 /* Pass-through: binds machine irq to guests irq */
 int xc_domain_bind_pt_irq(
     int xc_handle,
diff -r 40d9d9ff435a tools/libxc/xenctrl.h
--- a/tools/libxc/xenctrl.h     Thu Jan 15 12:54:31 2009 +0000
+++ b/tools/libxc/xenctrl.h     Wed Jan 21 11:22:21 2009 +0900
@@ -1075,6 +1075,12 @@
     uint32_t pirq,
     uint32_t gflags);
 
+int xc_domain_unbind_msi_irq(int xc_handle,
+                             uint32_t domid,
+                             uint32_t gvec,
+                             uint32_t pirq,
+                             uint32_t gflags);
+
 int xc_domain_bind_pt_irq(int xc_handle,
                           uint32_t domid,
                           uint8_t machine_irq,


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