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| author | Ricardo Neri <ricardo.neri-calderon@linux.intel.com> | 2017-11-13 22:29:43 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-11-14 08:38:09 +0100 |
| commit | 770c77557757873808a474016a3cae4b37690cb2 (patch) | |
| tree | 04e5990819a49a15dd754e5a472ea49174874fcc | |
| parent | 796ebc81b9931bfa293b4ca38ae28c21a363f4d0 (diff) | |
| download | linux-770c77557757873808a474016a3cae4b37690cb2.tar.gz linux-770c77557757873808a474016a3cae4b37690cb2.tar.bz2 linux-770c77557757873808a474016a3cae4b37690cb2.zip | |
x86/umip: Print a line in the boot log that UMIP has been enabled
Indicate that this feature has been enabled.
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi V. Shankar <ravi.v.shankar@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: ricardo.neri@intel.com
Link: http://lkml.kernel.org/r/1510640985-18412-3-git-send-email-ricardo.neri-calderon@linux.intel.com
[ Changelog tweaks. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 13ae9e5eec2f..fa998ca8aa5a 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -341,6 +341,8 @@ static __always_inline void setup_umip(struct cpuinfo_x86 *c) cr4_set_bits(X86_CR4_UMIP); + pr_info("x86/cpu: Activated the Intel User Mode Instruction Prevention (UMIP) CPU feature\n"); + return; out: |