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Date: Tue, 3 Feb 2015 14:40:19 -0800
From: Tony Luck <tony.luck@...el.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, linux-mm@...r.kernel.org
Subject: [RFC 3/3] x86, mirror: x86 enabling - find mirrored memory ranges
and tell memblock
Can't post this part yet because it uses things in an upcoming[*] ACPI, UEFI, or some
other four-letter-ending-in-I standard. So just imagine a call someplace early
in startup that reads information about mirrored address ranges and does:
+ for (...) {
+ start = ...;
+ size = ...;
+ if (it looks mirrored)
+ memblock_mark_mirror(start, size);
+ }
Whole patch is pretty tiny:
3 files changed, 19 insertions(+)
How much damage could I possibly do in just 19 lines?
-Tony
[*] very soon, I'm told
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