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author | Paolo Bonzini <pbonzini@redhat.com> | 2012-10-31 10:42:51 +0100 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2012-10-31 10:42:51 +0100 |
commit | f563a5d7a820424756f358e747238f03e866838a (patch) | |
tree | f78fa474b1933bd395af401a6d745150f4ecd15e /qemu-options.hx | |
parent | a27365265cc2fed1178bf25a205e8ee02a9c0caf (diff) | |
parent | aee0bf7d8d7564f8f2c40e4501695c492b7dd8d1 (diff) | |
download | qemu-f563a5d7a820424756f358e747238f03e866838a.tar.gz |
Merge remote-tracking branch 'origin/master' into threadpool
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'qemu-options.hx')
-rw-r--r-- | qemu-options.hx | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 46f0539182..a67a2551e5 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -253,6 +253,14 @@ qemu-system-i386 -drive file=file,index=2,media=disk qemu-system-i386 -drive file=file,index=3,media=disk @end example +You can open an image using pre-opened file descriptors from an fd set: +@example +qemu-system-i386 +-add-fd fd=3,set=2,opaque="rdwr:/path/to/file" +-add-fd fd=4,set=2,opaque="rdonly:/path/to/file" +-drive file=/dev/fdset/2,index=0,media=disk +@end example + You can connect a CDROM to the slave of ide0: @example qemu-system-i386 -drive file=file,if=ide,index=1,media=cdrom @@ -285,6 +293,34 @@ qemu-system-i386 -hda a -hdb b @end example ETEXI +DEF("add-fd", HAS_ARG, QEMU_OPTION_add_fd, + "-add-fd fd=fd,set=set[,opaque=opaque]\n" + " Add 'fd' to fd 'set'\n", QEMU_ARCH_ALL) +STEXI +@item -add-fd fd=@var{fd},set=@var{set}[,opaque=@var{opaque}] +@findex -add-fd + +Add a file descriptor to an fd set. Valid options are: + +@table @option +@item fd=@var{fd} +This option defines the file descriptor of which a duplicate is added to fd set. +The file descriptor cannot be stdin, stdout, or stderr. +@item set=@var{set} +This option defines the ID of the fd set to add the file descriptor to. +@item opaque=@var{opaque} +This option defines a free-form string that can be used to describe @var{fd}. +@end table + +You can open an image using pre-opened file descriptors from an fd set: +@example +qemu-system-i386 +-add-fd fd=3,set=2,opaque="rdwr:/path/to/file" +-add-fd fd=4,set=2,opaque="rdonly:/path/to/file" +-drive file=/dev/fdset/2,index=0,media=disk +@end example +ETEXI + DEF("set", HAS_ARG, QEMU_OPTION_set, "-set group.id.arg=value\n" " set <arg> parameter for item <id> of type <group>\n" |