From: Suresh Siddha <suresh.b.siddha@intel.com>
To: "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
Suresh Siddha <suresh.b.siddha@intel.com>
Subject: [patch 4/5] x86: Add xsaveopt cpufeature
Date: Mon, 19 Jul 2010 16:05:51 -0700 [thread overview]
Message-ID: <20100719230205.523204988@sbs-t61.sc.intel.com> (raw)
In-Reply-To: <20100719225747.372816924@sbs-t61.sc.intel.com>
[-- Attachment #1: xsaveopt_cpu_feature.patch --]
[-- Type: text/plain, Size: 851 bytes --]
Add cpu feature bit support for the XSAVEOPT instruction.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
---
arch/x86/include/asm/cpufeature.h | 1 +
1 file changed, 1 insertion(+)
Index: tip-linux-2.6/arch/x86/include/asm/cpufeature.h
===================================================================
--- tip-linux-2.6.orig/arch/x86/include/asm/cpufeature.h
+++ tip-linux-2.6/arch/x86/include/asm/cpufeature.h
@@ -165,6 +165,7 @@
#define X86_FEATURE_ARAT (7*32+ 1) /* Always Running APIC Timer */
#define X86_FEATURE_CPB (7*32+ 2) /* AMD Core Performance Boost */
#define X86_FEATURE_EPB (7*32+ 3) /* IA32_ENERGY_PERF_BIAS support */
+#define X86_FEATURE_XSAVEOPT (7*32+4) /* "xsaveopt" Optimized Xsave */
/* Virtualization flags: Linux defined, word 8 */
#define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */
next prev parent reply other threads:[~2010-07-19 23:08 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-19 23:05 [patch 0/5] x86: xsaveopt kernel enabling patches - v2 Suresh Siddha
2010-07-19 23:05 ` [patch 1/5] x86: track the offset, size of features state in the xsave layout Suresh Siddha
2010-07-20 1:51 ` [tip:x86/xsave] x86, xsave: Track the offset, size of " tip-bot for Suresh Siddha
2010-07-19 23:05 ` [patch 2/5] x86: sync xsave memory layout with its header for user handling Suresh Siddha
2010-07-20 1:52 ` [tip:x86/xsave] x86, xsave: Sync " tip-bot for Suresh Siddha
2010-07-19 23:05 ` [patch 3/5] x86: extend init_scattered_cpuid_features() to consider cpuid subleaves Suresh Siddha
2010-07-20 0:51 ` [tip:x86/cpu] x86, cpu: Make init_scattered_cpuid_features() " tip-bot for Suresh Siddha
2010-07-19 23:05 ` Suresh Siddha [this message]
2010-07-20 0:52 ` [tip:x86/cpu] x86, cpu: Add xsaveopt cpufeature tip-bot for Suresh Siddha
2010-07-19 23:05 ` [patch 5/5] x86: use xsaveopt in context-switch path when supported Suresh Siddha
2010-07-20 0:52 ` [tip:x86/cpu] x86, cpu: Enumerate xsaveopt tip-bot for Suresh Siddha
2010-07-20 1:52 ` [tip:x86/xsave] x86, xsave: Use xsaveopt in context-switch path when supported tip-bot for Suresh Siddha
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