Xen users - Nov 2006 - VESA BIOS in HVM emulation? (64 bit)

Hi there!

I am running a 64bit linux guest in HVM mode on a 64bit (xeon) workstation.
I am trying to get X to work.

The default cirrus driver is fine, but I need 1280x1024, 24 bpp mode, which
is not available in it.

So I switched to the standard VESA emulation mode by adding
stdvga=1 in the domain config file. (This mode is supposed to support 
higher resolution modes unsupported by the Cirrus emulation.)

This changed the loaded vga bios.
(Even lspci lists a different device now.)

But here comes the probelem:

When I try to start X, it says this:

------------------------------------
[...]

(II) VESA: driver for VESA chipsets: vesa
(II) Primary Device is: PCI 00:02:0
(--) Assigning device section with no busID to primary device
(--) Chipset vesa found

[...]

(II) Loading sub module "vbe"
(II) LoadModule: "vbe"
(II) Loading /usr/X11R6/lib64/modules/libvbe.a
(II) Module vbe: vendor="X.Org Foundation"
        compiled for 6.8.2, module version = 1.1.0
        ABI class: X.Org Video Driver, version 0.7
(II) Loading sub module "int10"
(II) LoadModule: "int10"
(II) Loading /usr/X11R6/lib64/modules/linux/libint10.a
(II) Module int10: vendor="X.Org Foundation"
        compiled for 6.8.2, module version = 1.0.0
        ABI class: X.Org Video Driver, version 0.7
(II) VESA(0): initializing int10
(II) VESA(0): Primary V_BIOS segment is: 0xc000
(II) VESA(0): VESA BIOS not detected
(II) UnloadModule: "vesa"
(II) UnloadModule: "int10"
(II) Unloading /usr/X11R6/lib64/modules/linux/libint10.a
(II) UnloadModule: "vbe"

[...]

(II) Unloading /usr/X11R6/lib64/modules/libvbe.a
(EE) Screen(s) found, but none have a usable configuration.

Fatal server error:
no screens found

------------------------------------------------------------

How can I fix this?


     Krist=f

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> I am running a 64bit linux guest in HVM mode on a 64bit (xeon) workstation.
> I am trying to get X to work.
> [...]
> I switched to the standard VESA emulation mode [...]
> [...]
> (II) VESA(0): VESA BIOS not detected
I tried the same thing sing on a 32bit host with a 32 HVM guest.
Same results.

Is the VESA mode supported at all with XEN?

There is no documentation for it, but the code is present
(it comes from QUEMU), and the option seems to be recognized,
and the emulated hardware is changed.

Is it possible that the VESA bios is really missing from the emulation?

    Kristof


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