On 22/12/15 12:43, "Denis V. Lunev" <[email protected]> wrote:
> commit 31e38a22a0c5a25646f966f001e1f5513d5a186d > Author: Olga Krishtal <[email protected]> > Date: Fri Dec 4 09:42:04 2015 +0300 > > qemu-char: append opt to stop truncation of serial file > >has added the option to the runtime but does not added it to -help >output. This blocks libvirt from using it. > >Signed-off-by: Denis V. Lunev <[email protected]> >CC: Dmitry Mishin <[email protected]> >CC: Eric Blake <[email protected]> >CC: Markus Armbruster <[email protected]> >CC: Paolo Bonzini <[email protected]> >--- > qemu-options.hx | 7 +++++-- > 1 file changed, 5 insertions(+), 2 deletions(-) > >diff --git a/qemu-options.hx b/qemu-options.hx >index 49afe6c..f706e4a 100644 >--- a/qemu-options.hx >+++ b/qemu-options.hx >@@ -2044,7 +2044,7 @@ DEF("chardev", HAS_ARG, QEMU_OPTION_chardev, > "-chardev >vc,id=id[[,width=width][,height=height]][[,cols=cols][,rows=rows]]\n" > " [,mux=on|off]\n" > "-chardev ringbuf,id=id[,size=size]\n" >- "-chardev file,id=id,path=path[,mux=on|off]\n" >+ "-chardev file,id=id,path=path[,mux=on|off][,append=on|off]\n" > "-chardev pipe,id=id,path=path[,mux=on|off]\n" > #ifdef _WIN32 > "-chardev console,id=id[,mux=on|off]\n" >@@ -2199,7 +2199,7 @@ console with the given dimensions. > Create a ring buffer with fixed size @option{size}. > @var{size} must be a power of two, and defaults to @code{64K}). > >-@item -chardev file ,id=@var{id} ,path=@var{path} >+@item -chardev file ,id=@var{id} ,path=@var{path} [,append=@var{on|off}] > > Log all traffic received from the guest to a file. > >@@ -2207,6 +2207,9 @@ Log all traffic received from the guest to a file. > created if it does not already exist, and overwritten if it does. >@option{path} > is required. > >+@option{append} specifies that QEMU must truncate the file on open. >+@option{append} is optional, default value is on. According to code, default value is off. >+ > @item -chardev pipe ,id=@var{id} ,path=@var{path} > > Create a two-way connection to the guest. The behaviour differs slightly >between >-- >2.5.0 >
