Re: Etherboot problems

[Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>]

Avi Kivity wrote:
>>    00000e75 660fb7ec                       movzx       ebp, sp
>>    00000e79 6601c5                         add         ebp, 
>> eax               00000e7c 660f01975200                   lgdt        
>> single ptr [bx+0x52]
>>    00000e82 0f20c0                         mov         eax, cr0
>>    00000e85 0c01                           or          al, 0x1
>>    00000e87 0f22c0                         mov         cr0, eax
>>    00000e8a 66ffaf6a00                     jmp         far ptr [bx+0x6a]
>>    ...
>>
>> I'm not an expert on Intel-syntax 16-bit assembly, but I guess the
>> last instruction is something like
>>
>>    jmp  *0x6a(%bx)
>>
>> . One thing which I'm sure of is if the vm exit was caused by the move
>> to %cr0 or the jump.
>>
>> Any takes? I can supply the .iso if someone would like to play with it
>>   
>
> I've generated the .iso (nice interface) and will try to reproduce it.
>
> Thanks for testing -- we really need those wierd guests to test the 
> corner cases.
>

Very likely this is due to VT's inability to virtualize real mode 
correctly.  Is anyone in the mood to extend x86_emulate.c to support 
real mode?


-- 
error compiling committee.c: too many arguments to function


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