[Xen-devel] [RESEND][PATCH V9 6/7] xl: add usbdev-assignable-list command

[Chunyan Liu <cyliu@xxxxxxxx>]

Add xl usbdev-assignable-list command to list assignable USB devices.
Assignable USB device means the USB device type is assignable and
it's not assigned to any guest yet.

Signed-off-by: Chunyan Liu <cyliu@xxxxxxxx>

---
  Same as "libxl: add libxl_device_usbdev_assignable_list API" patch,
  this patch could be sqaushed to previous one. Split because of
  some dispute. Could be squashed if acceptable, otherwise could
  be removed.

 tools/libxl/xl.h          |  1 +
 tools/libxl/xl_cmdimpl.c  | 28 ++++++++++++++++++++++++++++
 tools/libxl/xl_cmdtable.c |  4 ++++
 3 files changed, 33 insertions(+)

diff --git a/tools/libxl/xl.h b/tools/libxl/xl.h
index 309627a..8418fff 100644
--- a/tools/libxl/xl.h
+++ b/tools/libxl/xl.h
@@ -92,6 +92,7 @@ int main_blockdetach(int argc, char **argv);
 int main_vtpmattach(int argc, char **argv);
 int main_vtpmlist(int argc, char **argv);
 int main_vtpmdetach(int argc, char **argv);
+int main_usbdev_assignable_list(int argc, char **argv);
 int main_usbctrl_attach(int argc, char **argv);
 int main_usbctrl_detach(int argc, char **argv);
 int main_usbdev_attach(int argc, char **argv);
diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index f98e367..dfc3ad5 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -3449,6 +3449,34 @@ int main_cd_insert(int argc, char **argv)
     return 0;
 }
 
+static void usbdev_assignable_list(void)
+{
+    libxl_device_usbdev *usbdevs;
+    int num, i;
+
+    usbdevs = libxl_device_usbdev_assignable_list(ctx, &num);
+
+    for (i = 0; i < num; i++) {
+        printf("%d.%d\n",
+               usbdevs[i].u.hostdev.hostbus,
+               usbdevs[i].u.hostdev.hostaddr);
+    }
+
+    libxl_device_usbdev_list_free(usbdevs, num);
+}
+
+int main_usbdev_assignable_list(int argc, char **argv)
+{
+    int opt;
+
+    SWITCH_FOREACH_OPT(opt, "", NULL, "usbdev-assignable-list", 0) {
+        /* No options */
+    }
+
+    usbdev_assignable_list();
+    return 0;
+}
+
 int main_usbctrl_attach(int argc, char **argv)
 {
     uint32_t domid;
diff --git a/tools/libxl/xl_cmdtable.c b/tools/libxl/xl_cmdtable.c
index b14b881..df4f6d9 100644
--- a/tools/libxl/xl_cmdtable.c
+++ b/tools/libxl/xl_cmdtable.c
@@ -578,6 +578,10 @@ struct cmd_spec cmd_table[] = {
       "List information about all USB controllers and devices for a domain",
       "<Domain>",
     },
+    { "usbdev-assignable-list",
+      &main_usbdev_assignable_list, 0, 0,
+      "List all assignable USB devices",
+    },
 };
 
 int cmdtable_len = sizeof(cmd_table)/sizeof(struct cmd_spec);
-- 
2.1.4


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