Re: [Xen-devel] Disabling cirrus-vga

["Jun Koi" <junkoi2004@xxxxxxxxx>]

On Sat, Dec 13, 2008 at 9:58 AM, billy lau <billylau@xxxxxxxxx> wrote:
> Okay, after commenting those lines out, I noticed that my hvmloader doesn't
> run anymore. What happens is that when I do a xm list, I see this
>
> Name                                        ID   Mem VCPUs      State
> Time(s)
> Domain-0                                     0  2950     4     r-----
> 13.0
> vienna-windows                               1  1024     1     ------
> 1.0
>
> vienna-windows is my hvm guest. Then, looking at the log file,
>
> domid: 1
> qemu: the number of cpus is 1
> config qemu network with xen bridge for  tap1.0 xenbr0
> Watching /local/domain/0/device-model/1/logdirty/next-active
> Watching /local/domain/0/device-model/1/command
> xs_read(): vncpasswd get error.
> /vm/adeb6f31-4656-4a98-032f-14ebeb4b44a9/vncpasswd.

This looks like a bug??


>
> On Fri, Dec 12, 2008 at 7:46 AM, billy lau <billylau@xxxxxxxxx> wrote:
>>
>>
>> On Fri, Dec 12, 2008 at 5:33 AM, Stefano Stabellini
>> <stefano.stabellini@xxxxxxxxxxxxx> wrote:
>>>
>>> billy lau wrote:
>>>
>>> >
>>> >
>>> > On Thu, Dec 11, 2008 at 8:09 PM, Jun Koi <junkoi2004@xxxxxxxxx
>>> > <mailto:junkoi2004@xxxxxxxxx>> wrote:
>>> >
>>> >     On Fri, Dec 12, 2008 at 9:49 AM, billy lau <billylau@xxxxxxxxx
>>> >     <mailto:billylau@xxxxxxxxx>> wrote:
>>> >     > Hi xen developers,
>>> >     >
>>> >     > Does any of you know how to disable the cirrus-vga emulation for
>>> >     hvm in xen?
>>> >     > I have been trying to disable that from the source codes, but
>>> > even
>>> >     with
>>> >     > that, I still see a VGA controller when I boot up my guest
>>> > domain. In
>>> >     > particular, I would like to do this because I am passing through
>>> > a
>>> >     graphics
>>> >     > card to my guest domain using direct pass through.
>>> >
>>> >     Sorry that I dont understand your motivation. If your card is
>>> >     passthrough, the guest would load the appropriate driver for that.
>>> > So
>>> >     why do you care about the cirrus-vga driver?
>>> >
>>> >
>>> > This is because, even after installing the appropriate driver, there is
>>> > a conflict of device. Even after I disabled the cirrus driver, the
>>> > actual driver was reported to be "unable to access resources". Does
>>> > that
>>> > sound reasonable then?
>>>
>>>
>>> I think at the moment there is no way to do it from the command line.
>>> You have to comment out any call to pci_cirrus_vga_init,
>>> isa_cirrus_vga_init, pci_vmsvga_init, pci_vga_init and isa_vga_init in
>>> hw/pc.c (lines 939-962).
>>>
>>> You may also want to disable loadind the vgabios, also in hw/pc.c
>>> (load_image_targphys).
>>
>> Alright, I will give that a try, and get back to you guys again. Thanks
>> for the input.
>>
>> - billy
>>
>
>

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