Re: kvm-26 and Vista

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

Jorge Lucángeli Obes wrote:
> Hi everyone. I'm again trying to get 32-bit Vista Ultimate to run as a
> guest on my 64-bit Core 2 Duo T5600. I'm using Xubuntu Feisty with a
> custom 2.6.20.3 kernel and kvm-26. Avi's WBINVD patch in kvm-26 got
> Vista not to generate real-mode errors anymore. However, I still
> cannot get to boot it correctly. Now I get a "Bus error". Something,
> somewhere, is making unaligned reads:
>
> Program received signal SIGBUS, Bus error.
> [Switching to Thread 47681682213376 (LWP 6570)]
> ldl_phys (addr=47681685016573) at ../cpu-all.h:322
> 322         return *(uint32_t *)ptr;
> (gdb) bt
> #0  ldl_phys (addr=47681685016573) at ../cpu-all.h:322
> #1  0x000000000047e9dd in kvm_readl (opaque=0x7fffeaf13670,
>   


can you add a line here (kvm_readl)

    if (addr > 0x9fffc && addr < 0xa0000) return 0;

?

the problem is not the misalignment, it's reading from the vga address 
range at 0xa0000 which is not memory mapped.

I'm at a loss to explain why this doesn't happen here.

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


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