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"Das U-Boot" Source Tree
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * (C) Copyright 2020 EPAM Systems Inc.
4 *
5 * XEN para-virtualized block device support
6 */
7
8#include <blk.h>
9#include <command.h>
10
11/* Current I/O Device */
12static int pvblock_curr_device;
13
14int do_pvblock(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
15{
16 return blk_common_cmd(argc, argv, UCLASS_PVBLOCK,
17 &pvblock_curr_device);
18}
19
20U_BOOT_CMD(pvblock, 5, 1, do_pvblock,
21 "Xen para-virtualized block device",
22 "info - show available block devices\n"
23 "pvblock device [dev] - show or set current device\n"
24 "pvblock part [dev] - print partition table of one or all devices\n"
25 "pvblock read addr blk# cnt\n"
26 "pvblock write addr blk# cnt - read/write `cnt'"
27 " blocks starting at block `blk#'\n"
28 " to/from memory address `addr'");