Re: [PATCH 1/2] x86/efi: Map EFI memmap entries in-order at runtime

[Matt Fleming]

On Sat, 26 Sep, at 10:20:22AM, H. Peter Anvin wrote:
>
> I think it "works" because the affected BIOSes don't put spaces
> between the chunks.  I have discussed this with Matt.

Right, that's very true. Though note that the current mapping
algorithm will handle a gap <= PMD_SIZE, it's just anything larger
than PMD_SIZE we "squash" to the next multiple of PMD_SIZE.

It's unclear whether the firmware toolchains would even support
references between sections with a PMD_SIZE gap between them, and I
think the firmware engineers would have to go out of their way to
actually insert such a gap.

-- 
Matt Fleming, Intel Open Source Technology Center
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