@@ -27,8 +27,58 @@ int libxl__try_phy_backend(mode_t st_mode)
char *libxl__devid_to_localdev(libxl__gc *gc, int devid)
{
- /* TODO */
- return NULL;
+ /* This translation table has been copied from the FreeBSD blkfront code. */
+ const static struct vdev_info {
+ int major;
+ int shift;
+ int base;
+ const char *name;
+ } info[] = {
+ {3, 6, 0, "ada"}, /* ide0 */
+ {22, 6, 2, "ada"}, /* ide1 */
+ {33, 6, 4, "ada"}, /* ide2 */
+ {34, 6, 6, "ada"}, /* ide3 */
+ {56, 6, 8, "ada"}, /* ide4 */
+ {57, 6, 10, "ada"}, /* ide5 */
+ {88, 6, 12, "ada"}, /* ide6 */
+ {89, 6, 14, "ada"}, /* ide7 */
+ {90, 6, 16, "ada"}, /* ide8 */
+ {91, 6, 18, "ada"}, /* ide9 */
+
+ {8, 4, 0, "da"}, /* scsi disk0 */
+ {65, 4, 16, "da"}, /* scsi disk1 */
+ {66, 4, 32, "da"}, /* scsi disk2 */
+ {67, 4, 48, "da"}, /* scsi disk3 */
+ {68, 4, 64, "da"}, /* scsi disk4 */
+ {69, 4, 80, "da"}, /* scsi disk5 */
+ {70, 4, 96, "da"}, /* scsi disk6 */
+ {71, 4, 112, "da"}, /* scsi disk7 */
+ {128, 4, 128, "da"}, /* scsi disk8 */
+ {129, 4, 144, "da"}, /* scsi disk9 */
+ {130, 4, 160, "da"}, /* scsi disk10 */
+ {131, 4, 176, "da"}, /* scsi disk11 */
+ {132, 4, 192, "da"}, /* scsi disk12 */
+ {133, 4, 208, "da"}, /* scsi disk13 */
+ {134, 4, 224, "da"}, /* scsi disk14 */
+ {135, 4, 240, "da"}, /* scsi disk15 */
+
+ {202, 4, 0, "xbd"}, /* xbd */
+
+ {0, 0, 0, NULL},
+ };
+ int major = devid >> 8;
+ int minor = devid & 0xff;
+ int i;
+
+ if (devid & (1 << 28))
+ return GCSPRINTF("%s%d", "xbd", (devid & ((1 << 28) - 1)) >> 8);
+
+ for (i = 0; info[i].major; i++)
+ if (info[i].major == major)
+ return GCSPRINTF("%s%d", info[i].name,
+ info[i].base + (minor >> info[i].shift));
+
+ return GCSPRINTF("%s%d", "xbd", minor >> 4);
}
/* Hotplug scripts caller functions */
This code is extracted from the FreeBSD blkfront implementation. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> --- tools/libxl/libxl_freebsd.c | 54 +++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 52 insertions(+), 2 deletions(-)