Re: [PATCH v3 4/4] OvmfPkg: don't assign PCI BARs above 4GiB when CSM enabled

["David Woodhouse" <dwmw2@infradead.org>]

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On Thu, 2019-06-27 at 21:01 +0200, Laszlo Ersek wrote:
> 
> To clarify -- this is by no means to say that *SeaBIOS* is a relic. I
> absolutely don't imply that. Users should use the firmware they need,
> especially in the virtual world, where choosing is really easy.

Choosing is easy if you're running qemu on your desktop box.

If the owner of the guest doesn't also own the host, then you're into
"configurability", which means guests either having to *explicitly*
manage which firmware they get which is a pain for the customer, or
some kind of half-arsed guessing about which firmware to use, based on
poking around in the image that's being booted. Which doesn't generally
go well either.

There's a reason Intel went for the one-size-fits-all on real hardware,
and it applies just as well to (some, but not all) virtual hosting too.


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