[Xen-changelog] privcmd.h, privcmd.c:

[BitKeeper Bot <riel@xxxxxxxxxxx>]

ChangeSet 1.1713.1.14, 2005/06/17 09:47:00+01:00, cl349@xxxxxxxxxxxxxxxxxxxx

        privcmd.h, privcmd.c:
          Add IOCTL_PRIVCMD_INITDOMAIN_STORE to setup dom0 xenstore page
          and event channel.
        From: Rusty Russell <rusty@xxxxxxxxxxxxxxx>                             
        
        Signed-off-by: Christian Limpach <Christian.Limpach@xxxxxxxxxxxx>



 drivers/xen/privcmd/privcmd.c          |   30 ++++++++++++++++++++++++++++++
 include/asm-xen/linux-public/privcmd.h |    2 ++
 2 files changed, 32 insertions(+)


diff -Nru a/linux-2.6.11-xen-sparse/drivers/xen/privcmd/privcmd.c 
b/linux-2.6.11-xen-sparse/drivers/xen/privcmd/privcmd.c
--- a/linux-2.6.11-xen-sparse/drivers/xen/privcmd/privcmd.c     2005-06-17 
21:02:37 -04:00
+++ b/linux-2.6.11-xen-sparse/drivers/xen/privcmd/privcmd.c     2005-06-17 
21:02:37 -04:00
@@ -196,6 +196,36 @@
     }
     break;
 
+    case IOCTL_PRIVCMD_INITDOMAIN_STORE:
+    {
+        extern int do_xenbus_probe(void*);
+
+        if (xen_start_info.store_evtchn != 0) {
+            ret = -EINVAL;
+            break;
+        }
+
+        /* Allocate page. */
+        xen_start_info.store_page = get_zeroed_page(GFP_KERNEL);
+        if (!xen_start_info.store_page) {
+            ret = -ENOMEM;
+            break;
+        }
+
+        /* We don't refcnt properly, so set reserved on page.
+         * (this allocation is permanent) */
+        SetPageReserved(virt_to_page(xen_start_info.store_page));
+
+        /* Initial connect. Setup channel and page. */
+        xen_start_info.store_evtchn = data;
+        ret = pfn_to_mfn(virt_to_phys((void *)xen_start_info.store_page) >>
+                         PAGE_SHIFT);
+
+        /* We'll return then this will wait for daemon to answer */
+        // kthread_run(do_xenbus_probe, NULL, "xenbus_probe");
+    }
+    break;
+
     default:
         ret = -EINVAL;
         break;
diff -Nru a/linux-2.6.11-xen-sparse/include/asm-xen/linux-public/privcmd.h 
b/linux-2.6.11-xen-sparse/include/asm-xen/linux-public/privcmd.h
--- a/linux-2.6.11-xen-sparse/include/asm-xen/linux-public/privcmd.h    
2005-06-17 21:02:37 -04:00
+++ b/linux-2.6.11-xen-sparse/include/asm-xen/linux-public/privcmd.h    
2005-06-17 21:02:37 -04:00
@@ -84,5 +84,7 @@
     _IOC(_IOC_NONE, 'P', 3, sizeof(privcmd_mmapbatch_t))
 #define IOCTL_PRIVCMD_GET_MACH2PHYS_START_MFN \
     _IOC(_IOC_READ, 'P', 4, sizeof(unsigned long))
+#define IOCTL_PRIVCMD_INITDOMAIN_STORE \
+    _IOC(_IOC_READ, 'P', 5, 0)
 
 #endif /* __PRIVCMD_H__ */

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog