Re: [PATCH v5 0/5] Add movablecore_map boot option

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On Mon, 14 Jan 2013 22:41:03 +0000
"Luck, Tony" <tony.luck@xxxxxxxxx> wrote:

> > hm, why.  Obviously SRAT support will improve things, but is it
> > actually unusable/unuseful with the command line configuration?
> 
> Users will want to set these moveable zones along node boundaries
> (the whole purpose is to be able to remove a node by making sure
> the kernel won't allocate anything tricky in it, right?)  So raw addresses
> are usable ... but to get them right the user will have to go parse the
> SRAT table manually to come up with the addresses. Any time you
> make the user go off and do some tedious calculation that the computer
> should have done for them is user-abuse.
> 

Sure.  But SRAT configuration is in progress and the boot option is
better than nothing?

Things I'm wondering:

- is there *really* a case for retaining the boot option if/when
  SRAT support is available?

- will the boot option be needed for other archictectures, presumably
  because they don't provide sufficient layout information to the
  kernel?

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