From: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
To: Ingo Molnar <mingo@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>
Cc: Borislav Petkov <bp@suse.de>, Andy Lutomirski <luto@kernel.org>,
Tony Luck <tony.luck@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>,
"Ravi V. Shankar" <ravi.v.shankar@intel.com>,
x86@kernel.org, ricardo.neri@intel.com,
linux-kernel@vger.kernel.org,
Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Subject: [RESEND PATCH v2 2/4] x86/umip: Inform that UMIP has been enabled
Date: Mon, 13 Nov 2017 22:29:43 -0800 [thread overview]
Message-ID: <1510640985-18412-3-git-send-email-ricardo.neri-calderon@linux.intel.com> (raw)
In-Reply-To: <1510640985-18412-1-git-send-email-ricardo.neri-calderon@linux.intel.com>
Let us have an indication that this feature has been enabled.
Cc: Andy Lutomirski <luto@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Ravi V. Shankar <ravi.v.shankar@intel.com>
Cc: x86@kernel.org
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
---
arch/x86/kernel/cpu/common.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 13ae9e5..fa998ca 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:
--
2.7.4
next prev parent reply other threads:[~2017-11-14 6:31 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-14 6:29 [RESEND PATCH v2 0/4] x86: Tweaks for UMIP Ricardo Neri
2017-11-14 6:29 ` [RESEND PATCH v2 1/4] x86/umip: Select X86_INTEL_UMIP by default Ricardo Neri
2017-11-14 9:30 ` [tip:x86/urgent] " tip-bot for Ricardo Neri
2017-11-14 6:29 ` Ricardo Neri [this message]
2017-11-14 9:31 ` [tip:x86/urgent] x86/umip: Print a line in the boot log that UMIP has been enabled tip-bot for Ricardo Neri
2017-11-14 6:29 ` [RESEND PATCH v2 3/4] x86/umip: Identify the str and sldt instructions Ricardo Neri
2017-11-14 7:21 ` Ingo Molnar
2017-11-15 2:44 ` Ricardo Neri
2017-11-14 9:31 ` [tip:x86/urgent] x86/umip: Identify the STR and SLDT instructions tip-bot for Ricardo Neri
2017-11-14 6:29 ` [RESEND PATCH v2 4/4] x86/umip: Warn if UMIP-protected instructions are used Ricardo Neri
2017-11-14 7:34 ` Ingo Molnar
2017-11-15 2:56 ` Ricardo Neri
2017-11-15 8:41 ` Ingo Molnar
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