Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant

[Michael S. Tsirkin]

On Sun, Oct 11, 2009 at 07:28:13PM +0200, Avi Kivity wrote:
> On 10/11/2009 07:27 PM, Avi Kivity wrote:
>> So we are fine then? After reset new BIOS will get used?
>>
>> Yes.
>>
>
> I meant, we are fine for upgrade, and no, the new BIOS will not be used.  
> The file is only read once.

So this is what happens:
- after migration from old qemu to new old BIOS is used until reset
- after reset new BIOS is used
- after upgrade from old version of qemu upgrade does not have any
  effect until qemu is restarted

If this is a fair summary, the only issue with fixing BIOS bug
is migration from new qemu to old qemu, and we do not care much.


> -- 
> Do not meddle in the internals of kernels, for they are subtle and quick to 
> panic.