[PATCH] MTRR suspend/resume cleanup
There has been some discuss about solving the SMP MTRR suspend/resume
breakage, but I didn't find a patch for it. This is an intent for it. The
basic idea is moving mtrr initializing into cpu_identify for all APs (so it
works for cpu hotplug). For BP, restore_processor_state is responsible for
restoring MTRR.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index b02d921..5fd0322 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -1076,6 +1076,10 @@
#ifdef CONFIG_X86_MCE
mcheck_init(c);
#endif
+ if (c == &boot_cpu_data)
+ mtrr_bp_init();
+ else
+ mtrr_ap_init();
#ifdef CONFIG_NUMA
if (c != &boot_cpu_data)
numa_add_cpu(c - cpu_data);