libxenlight: implement cdrom insert/eject

This patch implements functions in libxenlight to change the cdrom in
a VM at run time and to handle cdrom eject requests from guests.

This patch adds two new commands to xl: cd-insert and cd-eject; it
also modifies xl to handle cdrom eject requests coming from guests
(actually coming from qemu).

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/tools/libxl/libxl_utils.c b/tools/libxl/libxl_utils.c
index 3d731ce029..66730c39ff 100644
--- a/tools/libxl/libxl_utils.c
+++ b/tools/libxl/libxl_utils.c
@@ -214,3 +214,33 @@ int libxl_create_logfile(struct libxl_ctx *ctx, char *name, char **full_name)
     return 0;
 }
 
+int libxl_string_to_phystype(struct libxl_ctx *ctx, char *s, libxl_disk_phystype *phystype)
+{
+    char *p;
+    int rc = 0;
+
+    if (!strcmp(s, "phy")) {
+        *phystype = PHYSTYPE_PHY;
+    } else if (!strcmp(s, "file")) {
+        *phystype = PHYSTYPE_FILE;
+    } else if (!strcmp(s, "tap")) {
+        p = strchr(s, ':');
+        if (!p) {
+            rc = -1;
+            goto out;
+        }
+        p++;
+        if (!strcmp(p, "aio")) {
+            *phystype = PHYSTYPE_AIO;
+        } else if (!strcmp(p, "vhd")) {
+            *phystype = PHYSTYPE_VHD;
+        } else if (!strcmp(p, "qcow")) {
+            *phystype = PHYSTYPE_QCOW;
+        } else if (!strcmp(p, "qcow2")) {
+            *phystype = PHYSTYPE_QCOW2;
+        }
+    }
+out:
+    return rc;
+}
+