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Add TAINT_FIRMWARE_WORKAROUND on MTRR fixup
author
Prarit Bhargava
<prarit@redhat.com>
Tue, 18 Oct 2011 17:24:10 +0000
(13:24 -0400)
committer
Ingo Molnar
<mingo@elte.hu>
Mon, 5 Dec 2011 12:48:50 +0000
(13:48 +0100)
TAINT_FIRMWARE_WORKAROUND should be set when an MTRR fixup
is done.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: David Rientjes <rientjes@google.com>
Link:
http://lkml.kernel.org/r/1318958650-12447-1-git-send-email-prarit@redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/cpu/mtrr/generic.c
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diff --git
a/arch/x86/kernel/cpu/mtrr/generic.c
b/arch/x86/kernel/cpu/mtrr/generic.c
index
a71efcd
..
e1fe7f4
100644
(file)
--- a/
arch/x86/kernel/cpu/mtrr/generic.c
+++ b/
arch/x86/kernel/cpu/mtrr/generic.c
@@
-547,6
+547,7
@@
static void generic_get_mtrr(unsigned int reg, unsigned long *base,
if (tmp != mask_lo) {
printk(KERN_WARNING "mtrr: your BIOS has configured an incorrect mask, fixing it.\n");
+ add_taint(TAINT_FIRMWARE_WORKAROUND);
mask_lo = tmp;
}
}