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x86: zboot: Add an 'setup' subcommand

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Add a subcommand that sets up the kernel ready for execution.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2020-09-05 14:50:47 -06:00 committed by Bin Meng
parent 1d9e4bb755
commit 3e59759324
1 changed files with 25 additions and 7 deletions
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32
arch/x86/lib/zimage.c
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@ -69,10 +69,11 @@ struct zboot_state {
enum {
ZBOOT_STATE_START = BIT(0),
ZBOOT_STATE_LOAD = BIT(1),
ZBOOT_STATE_INFO = BIT(2),
ZBOOT_STATE_GO = BIT(3),
ZBOOT_STATE_SETUP = BIT(2),
ZBOOT_STATE_INFO = BIT(3),
ZBOOT_STATE_GO = BIT(4),
ZBOOT_STATE_COUNT = 4,
ZBOOT_STATE_COUNT = 5,
};
static void build_command_line(char *command_line, int auto_boot)
@ -382,10 +383,24 @@ static int do_zboot_load(struct cmd_tbl *cmdtp, int flag, int argc,
}
state.base_ptr = base_ptr;
if (setup_zimage(base_ptr, (char *)base_ptr + COMMAND_LINE_OFFSET, 0,
state.initrd_addr, state.initrd_size)) {
return 0;
}
static int do_zboot_setup(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct boot_params *base_ptr = state.base_ptr;
int ret;
if (!base_ptr) {
printf("base is not set: use 'zboot load' first\n");
return CMD_RET_FAILURE;
}
ret = setup_zimage(base_ptr, (char *)base_ptr + COMMAND_LINE_OFFSET,
0, state.initrd_addr, state.initrd_size);
if (ret) {
puts("Setting up boot parameters failed ...\n");
return -1;
return CMD_RET_FAILURE;
}
return 0;
@ -419,6 +434,7 @@ static int do_zboot_go(struct cmd_tbl *cmdtp, int flag, int argc,
U_BOOT_SUBCMDS(zboot,
U_BOOT_CMD_MKENT(start, 6, 1, do_zboot_start, "", ""),
U_BOOT_CMD_MKENT(load, 1, 1, do_zboot_load, "", ""),
U_BOOT_CMD_MKENT(setup, 1, 1, do_zboot_setup, "", ""),
U_BOOT_CMD_MKENT(info, 1, 1, do_zboot_info, "", ""),
U_BOOT_CMD_MKENT(go, 1, 1, do_zboot_go, "", ""),
)
@ -460,7 +476,8 @@ int do_zboot_parent(struct cmd_tbl *cmdtp, int flag, int argc,
}
do_zboot_states(cmdtp, flag, argc, argv, ZBOOT_STATE_START |
ZBOOT_STATE_LOAD | ZBOOT_STATE_INFO | ZBOOT_STATE_GO);
ZBOOT_STATE_LOAD | ZBOOT_STATE_SETUP |
ZBOOT_STATE_INFO | ZBOOT_STATE_GO);
return CMD_RET_FAILURE;
}
@ -479,6 +496,7 @@ U_BOOT_CMDREP_COMPLETE(
"Sub-commands to do part of the zboot sequence:\n"
"\tstart [addr [arg ...]] - specify arguments\n"
"\tload - load OS image\n"
"\tsetup - set up table\n"
"\tinfo - show summary info\n"
"\tgo - start OS\n",
complete_zboot