Re: [Xen-devel] Re : Re : Re : Re : Re : Re : Re : Re : Re: Patches for VGA-Passthrough XEN 4.2 unstable

[Tobias Geiger <tobias.geiger@xxxxxxxxx>]

Hello,

glad to hear it works for you!

As i run a similar setup, perhaps you can share your experience regarding 
DomU-Reboot with a VGA Card passed through to it: Does a reboot work, i.e. 
does the passed-through VGA Card work after a DomU reboot?

My hole System (DomU + Dom0) freezes after a reboot of DomU (exaclty then, 
when the passed-through VGA Card is accessed...), therefore the question.

Thanks for your info!
Greetings
Tobias

Am Dienstag, 6. Dezember 2011, 14:57:30 schrieb David TECHER:
> Hi
> 
> Thanks for these informations. I am on Debian. So it could be usefull for
> Ubuntu users.
> 
> Thanks.
> 
> David
> 
> 
> 
> ________________________________
>  De : n4rC0t1C <shandivo@xxxxxxxxx>
> À : xen-devel@xxxxxxxxxxxxxxxxxxx
> Envoyé le : Mardi 6 Décembre 2011 13h04
> Objet : Re: [Xen-devel] Re : Re : Re : Re : Re : Re : Re : Re: Patches for
> VGA-Passthrough XEN 4.2 unstable
> 
> Iep I used your last patches, (your website it's at the top of my
> bookmarks), and they apply to xen-unstable rev. 24341 as well (which i'm
> using).
> 
> I forgot to mention that I had to make a couple of fix to xen tree, cause
> it wasn't compiling on my system due to  "error: format not a string
> literal and no format arguments":
> 
> 
> --- /usr/src/xen-unstable.hg-rev-24341-460gtx/tools/libxl/libxl_create.c
> +++ /usr/src/xen-unstable.hg-rev-24341-460gtx/tools/libxl/libxl_create.c
> @@ -462,7 +462,7 @@
>      path = libxl__xs_libxl_path(gc, domid);
>      path = libxl__sprintf(gc, "%s/dm-version", path);
>      return libxl__xs_write(gc, XBT_NULL, path, libxl__strdup(gc,
> -     
> libxl_device_model_version_to_string(dm_info->device_model_version)));
> +     
> libxl_device_model_version_to_string(dm_info->device_model_version)),"%s");
> }
> 
> static int do_domain_create(libxl__gc *gc, libxl_domain_config *d_config,
> 
> 
> --- /usr/src/xen-unstable.hg-rev-24341-460gtx/tools/libxl/libxl_device.c
> +++ /usr/src/xen-unstable.hg-rev-24341-460gtx/tools/libxl/libxl_device.c
> @@ -516,7 +516,7 @@
>          for (j = 0; j < num_devs; j++) {
>              path = libxl__sprintf(gc,
> "/local/domain/%d/device/%s/%s/backend",
>                                    domid, kinds[i], devs[j]);
> -            path = libxl__xs_read(gc, XBT_NULL, libxl__sprintf(gc, path));
> +            path = libxl__xs_read(gc, XBT_NULL, libxl__sprintf(gc,
> path,"%s"));
>              if (path && libxl__parse_backend_path(gc, path, &dev) == 0) {
>                  dev.domid = domid;
>                  dev.kind = kind;
> 
> and an due to an argument missing:
> 
> --- /usr/src/xen-unstable.hg-rev-24341-460gtx/tools/libxl/libxl_dom.c
> +++ /usr/src/xen-unstable.hg-rev-24341-460gtx/tools/libxl/libxl_dom.c
> @@ -625,7 +625,7 @@
>          break;
>      }
>      case LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN:
> -        fd2 = open(filename, O_WRONLY | O_CREAT | O_TRUNC);
> +        fd2 = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0644);
>          if (fd2 < 0) {
>              LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
>                               "Unable to create a QEMU save file\n");
> 
> As far as I know those doesn't break anything, but dont take too seriously,
> i'm not an experienced developer :)
> 
> 
> Forgot 2:
> Since I'm using an ubuntu kernel, the xen support is not integrated, but
> you need to add xen modules at your inittrd file. I did this by adding
> those:
> 
> xen-pciback passthrough=1
> xen-blkback
> xenfs
> xen-netback
> pci-stub
> 
> to /etc/xen/initramfs-tools/modules and the issuing update-initramfs.
> 
> In the future, I'll try to boot a linux domU, right now I'm still smiling
> cause I can fully wipe my Windows installation from the hard disk. And I'm
> sure that in future Win7 will be supported too.
> 
> Thanks again David and everyone,
> Ivo
> 
> --
> View this message in context:
> http://xen.1045712.n5.nabble.com/Patches-for-VGA-Passthrough-XEN-4-2-unsta
> ble-tp4406265p5051880.html Sent from the Xen - Dev mailing list archive at
> Nabble.com.
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel


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