Re: [PATCH v6 1/3] x86/boot: Add acpitb.c to parse acpi tables

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On Tue, Sep 11, 2018 at 3:28 AM Chao Fan <fanc.fnst@xxxxxxxxxxxxxx> wrote:
>
> On Mon, Sep 10, 2018 at 10:13:49PM +0200, Rafael J. Wysocki wrote:
> >On Mon, Sep 10, 2018 at 2:41 PM Chao Fan <fanc.fnst@xxxxxxxxxxxxxx> wrote:
> >>
> >> Imitate the ACPI code of parsing ACPI tables to dig and read ACPI
> >> tables.
> >
> >Why?
>
> Sorry for that, I have sent the cover letter to you.

Thanks, but please add the explanation here too.

> >
> >> Since some operations are not needed here,
> >
> >What operations?
>
> Such as some operations related to the map between physical address
> and virtual address. Here in compressed period, use physical address
> directely.

This information also needs to go into the changelog of the patch.

> >
> >> functions are simplified. Functions will be used to dig SRAT tables to get
> >> information of memory, so that KASLR can the memory in immovable node.
> >
> >So do you want to parse SRAT only or do something in addition to that?
>
> Only read and get memory information, won't change SRAT.
> So ACPI code will not be changed.

I meant whether or not SRAT is the only table you need to look into.
If so, that also needs to be said in the patch changelog.

Thanks,
Rafael



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