Re: [Xen-devel] HVM and WIndows NT

[Alexandre CABROL PERALES <alexandre.cabrol@xxxxxxxx>]

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how can i disable it ?

can you send me a diff for xen/arch/x86/hvm/stdvga.c

please.

Keir Fraser a écrit :
> Try disabling the acceleration stuff in xen/arch/x86/hvm/stdvga.c. Should
> suffice to 'return;' before the for-loop in stdvga_init().
> 
>  -- Keir
> 
> On 06/08/2009 16:50, "Alexandre CABROL PERALES" <alexandre.cabrol@xxxxxxxx>
> wrote:
> 
> I just installed xen 3.4
> and now with stdvga=0
> when i try to resize screen resolution the Windows NT crash.
> 
> Alexandre CABROL PERALES a écrit :
>>>> my main concern is :
>>>> i have to use windows nt in 1280x1024,
>>>> how can i reach this goal with xen 3.3 or upper?
>>>>
>>>> Seems there is a bug in Cirrus Video Card about screen resize.
>>>>
>>>> However there is no bug on this qemu emulation with kvm.
>>>>
>>>> So is there any way to patch qemu-dm video card emulator with current
>>>> qemu version?
>>>>
>>>> or what is the latest version of qemu used to dev qemu-dm?
>>>> I red a doc from 2007 which said that qemu-dm is based on qemu 8.
>>>>
>>>> is it still true?
>>>>
>>>> if not what is the base version of qemu used in qemu-dm for xen 3.3 and
>>>> xen 3.4 ?
>>>>
>>>> regards,
>>>>
>>>> mats petersson a écrit :
>>>>> A while (> 2 years ago), I'm sure I ran up Windows NT on Xen 3.0 or
>>>>> 3.1. But that was on an AMD processor, and it's highly likely that the
>>>>> BIOS / NT interaction  is broken in the Intel only "simulation of
>>>>> real-mode via vritual 8086 mode". The AMD processors support true Real
>>>>> Mode in Virtual machine mode.
>>>>>
>>>>> Of course, this may all have changed a huge amount, so do not rely on
>>>>> my information.
>>>>>
>>>>> --
>>>>> Mats
>>>>>
>>>>> 2009/8/6 Alexandre CABROL PERALES <alexandre.cabrol@xxxxxxxx>:
>>>>> Hi everybody,
>>>>> i'm currently trying to run Windows NT 4.0 on Xen.
>>>>>
>>>>> I can install it with Xen 3.3 and CPUID below:
>>>>> # Intel(R) Pentium(R) 4 CPU
>>>>>
>>>>> cpuid = [
>>>>> '0x00000000:eax=0x00000002,ebx=0x756e6547,ecx=0x6c65746e,edx=0x49656e69',
>>>>>
>>>>> '0x00000001:eax=0x00000f12,ebx=0x00010808,ecx=0x00000000,edx=0x3febfbff',
>>>>>
>>>>> '0x00000002:eax=0x665b5001,ebx=0x00000000,ecx=0x00000000,edx=0x007a7040',
>>>>>
>>>>> '0x80000000:eax=0x80000004,ebx=0x00000000,ecx=0x00000000,edx=0x00000000',
>>>>>
>>>>> '0x80000001:eax=0x00000000,ebx=0x00000000,ecx=0x00000000,edx=0x00000000',
>>>>>
>>>>> '0x80000002:eax=0x20202020,ebx=0x20202020,ecx=0x20202020,edx=0x6e492020',
>>>>>
>>>>> '0x80000003:eax=0x286c6574,ebx=0x50202952,ecx=0x69746e65,edx=0x52286d75',
>>>>>
>>>>> '0x80000004:eax=0x20342029,ebx=0x20555043,ecx=0x30352e31,edx=0x007a4847',
>>>>>          ]
>>>>>
>>>>>
>>>>>
>>>>> But i have an issue with Video Card emulation of Xen 3.3.1 :
>>>>> when i use Cirrus Logic emulation,
>>>>> during display test the system crash with yellow or green screen.
>>>>>
>>>>> It seems that Cirrus emulation didn't support the resizing.
>>>>>
>>>>> If i try stdvga mode the videocard is not recognised by Windows NT.
>>>>>
>>>>> I tried on KVM and it works fine with cirrus logic emulation.
>>>>>
>>>>>
>>>>>
>>>>> Is there any way to update qemu-dm with current qemu version ?
>>>>>
>>>>>
>>>>> regards,
>>>> _______________________________________________
>>>> Xen-devel mailing list
>>>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>>>> http://lists.xensource.com/xen-devel
>>>>
>>>>> _______________________________________________
>>>>> Xen-devel mailing list
>>>>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>>>>> http://lists.xensource.com/xen-devel
>>>>> .
>>>>
>>
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> .


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