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-rw-r--r--qemu-options.hx8
-rw-r--r--vl.c25
2 files changed, 30 insertions, 3 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index 30fb85d619..06dd565076 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -161,14 +161,14 @@ ETEXI
DEF("boot", HAS_ARG, QEMU_OPTION_boot,
"-boot [order=drives][,once=drives][,menu=on|off]\n"
- " [,splash=sp_name][,splash-time=sp_time][,reboot-timeout=rb_time]\n"
+ " [,splash=sp_name][,splash-time=sp_time][,reboot-timeout=rb_time][,strict=on|off]\n"
" 'drives': floppy (a), hard disk (c), CD-ROM (d), network (n)\n"
" 'sp_name': the file's name that would be passed to bios as logo picture, if menu=on\n"
" 'sp_time': the period that splash picture last if menu=on, unit is ms\n"
" 'rb_timeout': the timeout before guest reboot when boot failed, unit is ms\n",
QEMU_ARCH_ALL)
STEXI
-@item -boot [order=@var{drives}][,once=@var{drives}][,menu=on|off][,splash=@var{sp_name}][,splash-time=@var{sp_time}][,reboot-timeout=@var{rb_timeout}]
+@item -boot [order=@var{drives}][,once=@var{drives}][,menu=on|off][,splash=@var{sp_name}][,splash-time=@var{sp_time}][,reboot-timeout=@var{rb_timeout}][,strict=on|off]
@findex -boot
Specify boot order @var{drives} as a string of drive letters. Valid
drive letters depend on the target achitecture. The x86 PC uses: a, b
@@ -192,6 +192,10 @@ when boot failed, then reboot. If @var{rb_timeout} is '-1', guest will not
reboot, qemu passes '-1' to bios by default. Currently Seabios for X86
system support it.
+Do strict boot via @option{strict=on} as far as firmware/BIOS
+supports it. This only effects when boot priority is changed by
+bootindex options. The default is non-strict boot.
+
@example
# try to boot from network first, then from hard disk
qemu-system-i386 -boot order=nc
diff --git a/vl.c b/vl.c
index ce51e65368..aeed7f435d 100644
--- a/vl.c
+++ b/vl.c
@@ -234,6 +234,7 @@ int ctrl_grab = 0;
unsigned int nb_prom_envs = 0;
const char *prom_envs[MAX_PROM_ENVS];
int boot_menu;
+bool boot_strict;
uint8_t *boot_splash_filedata;
size_t boot_splash_filedata_size;
uint8_t qemu_extra_params_fw[2];
@@ -458,6 +459,9 @@ static QemuOptsList qemu_boot_opts = {
}, {
.name = "reboot-timeout",
.type = QEMU_OPT_STRING,
+ }, {
+ .name = "strict",
+ .type = QEMU_OPT_STRING,
},
{ /*End of list */ }
},
@@ -1267,6 +1271,12 @@ char *get_boot_devices_list(size_t *size)
*size = total;
+ if (boot_strict && *size > 0) {
+ list[total-1] = '\n';
+ list = g_realloc(list, total + 4);
+ memcpy(&list[total], "HALT", 4);
+ *size = total + 4;
+ }
return list;
}
@@ -3131,7 +3141,7 @@ int main(int argc, char **argv, char **envp)
static const char * const params[] = {
"order", "once", "menu",
"splash", "splash-time",
- "reboot-timeout", NULL
+ "reboot-timeout", "strict", NULL
};
char buf[sizeof(boot_devices)];
char *standard_boot_devices;
@@ -3174,6 +3184,19 @@ int main(int argc, char **argv, char **envp)
exit(1);
}
}
+ if (get_param_value(buf, sizeof(buf),
+ "strict", optarg)) {
+ if (!strcmp(buf, "on")) {
+ boot_strict = true;
+ } else if (!strcmp(buf, "off")) {
+ boot_strict = false;
+ } else {
+ fprintf(stderr,
+ "qemu: invalid option value '%s'\n",
+ buf);
+ exit(1);
+ }
+ }
if (!qemu_opts_parse(qemu_find_opts("boot-opts"),
optarg, 0)) {
exit(1);