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authorGabriel L. Somlo <somlo@cmu.edu>2015-04-29 11:21:53 -0400
committerGerd Hoffmann <kraxel@redhat.com>2015-06-10 08:06:46 +0200
commit81b2b81062612ebeac4cd5333a3b15c7d79a5a3d (patch)
treec505eeb49687c998e3f536e8e7fe0fbfbf5303b1 /qemu-options.hx
parent0eb973f91521c6bcb6399d25327711d083f6eb10 (diff)
fw_cfg: insert fw_cfg file blobs via qemu cmdline
Allow user supplied files to be inserted into the fw_cfg device before starting the guest. Since fw_cfg_add_file() already disallows duplicate fw_cfg file names, qemu will exit with an error message if the user supplies multiple blobs with the same fw_cfg file name, or if a blob name collides with a fw_cfg name programmatically added from within the QEMU source code. A warning message will be printed if the fw_cfg item name does not begin with the prefix "opt/", which is recommended for external, user provided blobs. Signed-off-by: Gabriel Somlo <somlo@cmu.edu> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'qemu-options.hx')
-rw-r--r--qemu-options.hx11
1 files changed, 11 insertions, 0 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index 4be98f71df..1d281f6818 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -2686,6 +2686,17 @@ STEXI
@table @option
ETEXI
+DEF("fw_cfg", HAS_ARG, QEMU_OPTION_fwcfg,
+ "-fw_cfg [name=]<name>,file=<file>\n"
+ " add named fw_cfg entry from file\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.
+ETEXI
+
DEF("serial", HAS_ARG, QEMU_OPTION_serial, \
"-serial dev redirect the serial port to char device 'dev'\n",
QEMU_ARCH_ALL)