Re: [Xen-devel] Need help with qemu args debug

[Fantu <fantonifabio@xxxxxxxxxx>]

Fantu wrote
> 
> 
> Ian Campbell-10 wrote
>> 
>> That should be possible, but you haven't shown your code so I can't say
>> where you have gone wrong.
>> 
>> What I often do is create qemu-debug.sh:
>>      #!/bin/sh
>>      echo "Starting QEMU with: $*" >> /tmp/qemu-dbg.log
>>      exec /usr/lib/xen/bin/qemu-system-i386 $@
>> 
>> And then using device_model_override to call this instead of calling
>> qemu directly.
>> 
> 
> Thanks for reply
> 
> Qxl graphic is needed for many things with spice, I start to try add it
> following this: http://spice-space.org/docs/spice_user_manual.pdf
> 
> On libxl_dm.c add this line:
> flexarray_append(dm_args, "-qxl 1");
> before this:
> flexarray_append(dm_args, "-spice");
> 
> With dm override give:
> Starting QEMU with: -xen-domid 22 -chardev
> socket,id=libxl-cmd,path=/var/run/xen/qmp-libxl-22,server,nowait -mon
> chardev=libxl-cmd,mode=control -name PRECISEHVM -vnc 127.0.0.1:0,to=99
> -qxl 1 -spice
> port=6000,tls-port=0,addr=0.0.0.0,password=test,agent-mouse=on -boot
> order=c -smp 2,maxcpus=3 -device
> rtl8139,id=nic0,netdev=net0,mac=00:16:3e:6b:81:89 -netdev
> type=tap,id=net0,ifname=tap22.0,script=no -M xenfv -m 1024 -drive
> file=/mnt/vm/disks/PRECISEHVM.disk1.xm,if=ide,index=0,media=disk,format=raw
> -drive file=/dev/sr0,if=ide,index=1,media=cdrom,format=raw
> 
> And on /var/log/xen/qemu-dm-PRECISEHVM.log:
> qemu-system-i386: -qxl: invalid option
> 
> There isn't other -vga or -nographic options, I not undestand the problem,
> without qxl work but on spice connect and load see the cirrus video card,
> video performance is not good and is impossible resize resolution, qxl
> graphic is needed.
> I have also try -vga qxl but same problem.
> 
> Before i try to add permant dm_args debug on log with:
> On libxl_dm.c add this line:
> LIBXL__LOG(ctx, LIBXL__LOG_DEBUG, "dm_args: ", flexarray_contents(dm_args)
> );
> before this:
> return (char **) flexarray_contents(dm_args);
> 
> Show:
> libxl_dm.c: In function Ãlibxl__build_device_model_args_newÃ:
> libxl_dm.c:582:2: error: too many arguments for format
> [-Werror=format-extra-args]
> cc1: all warnings being treated as errors
> 

See only now how -vga qxl try to start but give other error...

Starting QEMU with: -xen-domid 25 -chardev
socket,id=libxl-cmd,path=/var/run/xen/qmp-libxl-25,server,nowait -mon
chardev=libxl-cmd,mode=control -name PRECISEHVM -vga qxl -spice
port=6000,tls-port=0,addr=0.0.0.0,password=test,agent-mouse=on -boot order=c
-smp 2,maxcpus=3 -device rtl8139,id=nic0,netdev=net0,mac=00:16:3e:38:be:1d
-netdev type=tap,id=net0,ifname=tap25.0,script=no -M xenfv -m 1024 -drive
file=/mnt/vm/disks/PRECISEHVM.disk1.xm,if=ide,index=0,media=disk,format=raw
-drive file=/dev/sr0,if=ide,index=1,media=cdrom,format=raw

do_spice_init: starting 0.10.1
spice_server_add_interface: SPICE_INTERFACE_MIGRATION
spice_server_add_interface: SPICE_INTERFACE_KEYBOARD
spice_server_add_interface: SPICE_INTERFACE_MOUSE
qemu: hardware error: xen: failed to populate ram at 40000000

The full log: 
http://xen.1045712.n5.nabble.com/file/n5524897/qemu-dm-PRECISEHVM.log
qemu-dm-PRECISEHVM.log 

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