x86_64: only reserve the first 1MB of IO space for CalIOC2
Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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