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Re: [Qemu-devel] [PATCH V15 4/5] i386: add a Virtual Machine Generation
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [PATCH V15 4/5] i386: add a Virtual Machine Generation ID device |
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Date: |
Thu, 28 May 2015 15:00:52 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 |
On 28/05/2015 14:21, Michael S. Tsirkin wrote:
> > And the way I can fix it would be...? Is there another memory region I can
> > use?
> >
> > Thanks,
> >
> > Gal.
>
> I think we hammered out an interesting alternative off-list: get hold of
> some AddressRegionNVS memory and copy data from MMIO or port io over
> there when you get an interrupt.
That doesn't work because there's no way to get the base address of a
DataTableRegion.
You could use a linker ADD_POINTER command, but it wouldn't work for
UEFI. So I think it's best to just stay with this one. If we do find
something better we can always change it later.
Paolo