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-rw-r--r--qemu-options.hx12
1 files changed, 9 insertions, 3 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index ce4e4d299..3cd9243fd 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -344,13 +344,14 @@ ETEXI
DEF("boot", HAS_ARG, QEMU_OPTION_boot,
"-boot [order=drives][,once=drives][,menu=on|off]\n"
- " [,splash=sp_name][,splash-time=sp_time]\n"
+ " [,splash=sp_name][,splash-time=sp_time][,reboot-timeout=rb_time]\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",
+ " '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}]
+@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}]
@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
@@ -369,6 +370,11 @@ limitation: The splash file could be a jpeg file or a BMP file in 24 BPP
format(true color). The resolution should be supported by the SVGA mode, so
the recommended is 320x240, 640x480, 800x640.
+A timeout could be passed to bios, guest will pause for @var{rb_timeout} ms
+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.
+
@example
# try to boot from network first, then from hard disk
qemu-system-i386 -boot order=nc