Re: [PATCH 4/5] x86, mm: Add set_memory_wt() for WT
From: Toshi Kani
Date: Thu Sep 04 2014 - 15:07:39 EST
On Thu, 2014-09-04 at 11:57 -0700, Andy Lutomirski wrote:
> On Thu, Sep 4, 2014 at 11:35 AM, Toshi Kani <toshi.kani@xxxxxx> wrote:
> > This patch adds set_memory_wt(), set_memory_array_wt(), and
> > set_pages_array_wt() for setting range(s) of memory to WT.
> Possibly dumb question: I thought that set_memory_xyz was only for
> RAM. Is that incorrect?
It works for non-RAM ranges as well. For instance, you can use
set_memory_xyz() to change cache attribute for a non-RAM range mapped by
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