Re: [Xen-devel] HVM and WIndows NT

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

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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,
> _______________________________________________
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> 
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> 
>> .
> 
> 

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Alexandre CABROL PERALES
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