mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-26 22:52:18 +00:00
722bc5b5d9
Add initial infrastructure for Xen para-virtualized block device. This includes compile-time configuration and the skeleton for the future driver implementation. Add new class UCLASS_PVBLOCK which is going to be a parent for virtual block devices. Add new interface type IF_TYPE_PVBLOCK. Implement basic driver setup by reading XenStore configuration. Signed-off-by: Andrii Anisov <andrii_anisov@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
30 lines
845 B
C
30 lines
845 B
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2020 EPAM Systems Inc.
|
|
*
|
|
* XEN para-virtualized block device support
|
|
*/
|
|
|
|
#include <blk.h>
|
|
#include <common.h>
|
|
#include <command.h>
|
|
|
|
/* Current I/O Device */
|
|
static int pvblock_curr_device;
|
|
|
|
int do_pvblock(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
|
|
{
|
|
return blk_common_cmd(argc, argv, IF_TYPE_PVBLOCK,
|
|
&pvblock_curr_device);
|
|
}
|
|
|
|
U_BOOT_CMD(pvblock, 5, 1, do_pvblock,
|
|
"Xen para-virtualized block device",
|
|
"info - show available block devices\n"
|
|
"pvblock device [dev] - show or set current device\n"
|
|
"pvblock part [dev] - print partition table of one or all devices\n"
|
|
"pvblock read addr blk# cnt\n"
|
|
"pvblock write addr blk# cnt - read/write `cnt'"
|
|
" blocks starting at block `blk#'\n"
|
|
" to/from memory address `addr'");
|
|
|