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fw_cfg: insert string blobs via qemu cmdline

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Allow users to provide custom fw_cfg blobs with ascii string
payloads specified directly on the qemu command line.

Suggested-by: Jordan Justen <jordan.l.justen@intel.com>
Suggested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Message-id: 1443544141-26568-1-git-send-email-somlo@cmu.edu
Reviewd-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gabriel L. Somlo 2015-09-29 12:29:01 -04:00 • committed by Gerd Hoffmann
parent 526d5809a0
commit 6407d76eb4
3 changed files with 48 additions and 7 deletions
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7
qemu-options.hx
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@ -2724,13 +2724,18 @@ 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 from file\n"
"-fw_cfg [name=]<name>,string=<str>\n"
" add named fw_cfg entry 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.
@item -fw_cfg [name=]@var{name},string=@var{str}
Add named fw_cfg entry from string.
ETEXI
DEF("serial", HAS_ARG, QEMU_OPTION_serial, \