diff options
Diffstat (limited to 'tools/libxl/libxl.c')
| -rw-r--r-- | tools/libxl/libxl.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c index 0f936c0ab7..30302c71b0 100644 --- a/tools/libxl/libxl.c +++ b/tools/libxl/libxl.c @@ -2052,6 +2052,12 @@ static void device_disk_add(libxl__egc *egc, uint32_t domid, libxl_ctx *ctx = gc->owner; xs_transaction_t t = XBT_NULL; + libxl_domain_type type = libxl__domain_type(gc, domid); + if (type == LIBXL_DOMAIN_TYPE_INVALID) { + rc = ERROR_FAIL; + goto out; + } + for (;;) { rc = libxl__xs_transaction_start(gc, &t); if (rc) goto out; @@ -2170,6 +2176,23 @@ static void device_disk_add(libxl__egc *egc, uint32_t domid, flexarray_append(front, "device-type"); flexarray_append(front, disk->is_cdrom ? "cdrom" : "disk"); + /* + * Old PV kernel disk frontends before 2.6.26 rely on tool stack to + * write disk native protocol to frontend node. Xend does this, port + * this behaviour to xl. + * + * New kernels write this node themselves. In that case it just + * overwrites an existing node which is OK. + */ + if (type == LIBXL_DOMAIN_TYPE_PV) { + const char *protocol = + xc_domain_get_native_protocol(ctx->xch, domid); + if (protocol) { + flexarray_append(front, "protocol"); + flexarray_append(front, libxl__strdup(gc, protocol)); + } + } + libxl__device_generic_add(gc, t, device, libxl__xs_kvs_of_flexarray(gc, back, back->count), libxl__xs_kvs_of_flexarray(gc, front, front->count)); |