Re: [PATCH 4/4] qemu: Add support for setting the TSEG size

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On 06/07/18 23:14, Martin Kletzander wrote:

> @Laszlo: When thinking about it, even though it is a very stupid idea,
> technically there isn't really a difference between
> 'extended-tseg-mbytes=0' and
> 'extended-tseg-mbytes=8'

that's correct

> (of course the second option will still provide a
> fw_cfg info about the size etc., but the guest will behave the same
> way), right?

- it's not fw_cfg but a made-up register in PCI config space
- the guest won't behave *exactly* the same way, technically speaking,
  but the end result will be 8MB in both cases, yes.

> That brings me to another question (maybe even more stupid), what size
> does OVMF choose if I specify 'extended-tseg-mbytes=6'?

6MB.

Thanks,
Laszlo

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