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xen-devel
RE: [Xen-devel] xl and GFX passthrough
Sergey,
Did you get gfx_passthru to work with xl? I found the latest source still does
not seems to pass gfx_passthru to qemu correctly.
By the way, how to output debug messages to xl*.log file? I tried LOG() and
fprintf(stderr...) neither worked for me.
Allen
-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Sergey Tovpeko
Sent: Thursday, January 13, 2011 3:18 AM
To: Ian Campbell; Daniel De Graaf
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] xl and GFX passthrough
>
> I just noticed that this appears to have been fixed by Daniel De Graf
> just a few days ago, see 22711:4f6fee3a456e, which may only be in the
> staging tree at http://xenbits.xen.org/staging/xen-unstable.hg since we
> are waiting for a test pass.
>
>
Ian, Daniel
my patch is almost like Daniel's one. Thank you for pointing to it.
And there's one absent thing in Daniel's commit (4f6fee3a456e). To
complete the gfx passthrough issue for xl we should pass this option to
qemu-dm, like this :
+ if (info->gfx_passthru) {
+ flexarray_set(dm_args, num++, "-gfx_passthru");
+ flexarray_set(dm_args, num++, libxl__sprintf(gc, "%d",
info->gfx_passthru));
+ }
I suppose, without it 'qemu-dm' won't know about gfx_passthru mode and
won't load passthru'ed vga bios.
Daniel might plan to add this code or added it already?
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