diff options
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 587de8f3cd..6106520c56 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -2864,18 +2864,32 @@ ETEXI DEF("fw_cfg", HAS_ARG, QEMU_OPTION_fwcfg, "-fw_cfg [name=]<name>,file=<file>\n" - " add named fw_cfg entry from file\n" + " add named fw_cfg entry with contents from file\n" "-fw_cfg [name=]<name>,string=<str>\n" - " add named fw_cfg entry from string\n", + " add named fw_cfg entry with contents from string\n", QEMU_ARCH_ALL) STEXI + @item -fw_cfg [name=]@var{name},file=@var{file} @findex -fw_cfg -Add named fw_cfg entry from file. @var{name} determines the name of -the entry in the fw_cfg file directory exposed to the guest. +Add named fw_cfg entry with contents from file @var{file}. @item -fw_cfg [name=]@var{name},string=@var{str} -Add named fw_cfg entry from string. +Add named fw_cfg entry with contents from string @var{str}. + +The terminating NUL character of the contents of @var{str} will not be +included as part of the fw_cfg item data. To insert contents with +embedded NUL characters, you have to use the @var{file} parameter. + +The fw_cfg entries are passed by QEMU through to the guest. + +Example: +@example + -fw_cfg name=opt/com.mycompany/blob,file=./my_blob.bin +@end example +creates an fw_cfg entry named opt/com.mycompany/blob with contents +from ./my_blob.bin. + ETEXI DEF("serial", HAS_ARG, QEMU_OPTION_serial, \ |