From: Andi Kleen <andi@firstfloor.org>
To: akpm@linux-foundation.org, mingo@elte.hu, tglx@linutronix.de,
hpa@zytor.com, linux-kernel@vger.kernel.org
Subject: [PATCH] [8/9] x86: CMCI: Disable CMCI on rebooting
Date: Thu, 12 Feb 2009 13:49:37 +0100 (CET) [thread overview]
Message-ID: <20090212124937.6095D3E666D@basil.firstfloor.org> (raw)
In-Reply-To: <20090212149.227733077@firstfloor.org>
Disable the CMCI vector on reboot to avoid confusing other OS.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
arch/x86/kernel/apic.c | 8 ++++++++
1 file changed, 8 insertions(+)
Index: linux/arch/x86/kernel/apic.c
===================================================================
--- linux.orig/arch/x86/kernel/apic.c 2009-02-12 12:02:27.000000000 +0100
+++ linux/arch/x86/kernel/apic.c 2009-02-12 12:10:16.000000000 +0100
@@ -868,6 +868,14 @@
apic_write(APIC_LVTTHMR, v | APIC_LVT_MASKED);
}
#endif
+#ifdef CONFIG_X86_MCE_INTEL
+ if (maxlvt >= 6) {
+ v = apic_read(APIC_LVTCMCI);
+ if (!(v & APIC_LVT_MASKED))
+ apic_write(APIC_LVTCMCI, v | APIC_LVT_MASKED);
+ }
+#endif
+
/*
* Clean APIC state for other OSs:
*/
next prev parent reply other threads:[~2009-02-12 12:53 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-12 12:49 [PATCH] [0/9] x86: CMCI: Add support for Intel CMCI Andi Kleen
2009-02-12 12:49 ` [PATCH] [1/9] x86: CMCI: Export MAX_NR_BANKS Andi Kleen
2009-02-12 12:49 ` [PATCH] [2/9] x86: CMCI: Factor out threshold interrupt handler Andi Kleen
2009-02-12 12:49 ` [PATCH] [3/9] x86: CMCI: Avoid potential reentry of threshold interrupt Andi Kleen
2009-02-12 12:49 ` [PATCH] [4/9] x86: MCE: Replace machine check events logged interval with ratelimit Andi Kleen
2009-02-12 12:49 ` [PATCH] [5/9] x86: CMCI: Use polled banks bitmap in machine check poller Andi Kleen
2009-02-12 12:49 ` [PATCH] [6/9] x86: CMCI: Define MSR names and fields for new CMCI registers Andi Kleen
2009-02-12 12:49 ` [PATCH] [7/9] x86: CMCI: Add CMCI support Andi Kleen
2009-02-12 12:49 ` Andi Kleen [this message]
2009-02-12 12:49 ` [PATCH] [9/9] x86: CMCI: Recheck CMCI banks after APIC has been enabled on CPU #0 Andi Kleen
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