diff options
| author | Naga Chumbalkar <nagananda.chumbalkar@hp.com> | 2011-07-12 05:59:07 +0000 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2011-07-12 14:33:49 -0700 |
| commit | 25970852280c9d5fb2de899769880d3e97332baa (patch) | |
| tree | 164c46e430637f790ed2e495155fd8fc724e47f5 /arch/x86/kernel/process_64.c | |
| parent | 7fece83235a59b15d75d6c8ef2225c24abd4505b (diff) | |
x86, x2apic: Preserve high 32-bits of IA32_APIC_BASE MSR
If there's no special reason to zero-out the "high" 32-bits of the IA32_APIC_BASE
MSR, let's preserve it.
The x2APIC Specification doesn't explicitly state any such requirement. (Sec 2.2
in: http://www.intel.com/Assets/PDF/manual/318148.pdf).
Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Link: http://lkml.kernel.org/r/20110712055831.2498.78521.sendpatchset@nchumbalkar.americas.cpqcorp.net
Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org>
Reviewed-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/kernel/process_64.c')
0 files changed, 0 insertions, 0 deletions