From: tip-bot for Suresh Siddha <suresh.b.siddha@intel.com>
To: linux-tip-commits@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com,
suresh.b.siddha@intel.com, tglx@linutronix.de,
hpa@linux.intel.com
Subject: [tip:x86/cpu] x86, cpu: Add xsaveopt cpufeature
Date: Tue, 20 Jul 2010 00:52:04 GMT [thread overview]
Message-ID: <tip-40e1d7a4ffee5cb17f5c36f4c3c4a011ab103ebe@git.kernel.org> (raw)
In-Reply-To: <20100719230205.523204988@sbs-t61.sc.intel.com>
Commit-ID: 40e1d7a4ffee5cb17f5c36f4c3c4a011ab103ebe
Gitweb: http://git.kernel.org/tip/40e1d7a4ffee5cb17f5c36f4c3c4a011ab103ebe
Author: Suresh Siddha <suresh.b.siddha@intel.com>
AuthorDate: Mon, 19 Jul 2010 16:05:51 -0700
Committer: H. Peter Anvin <hpa@linux.intel.com>
CommitDate: Mon, 19 Jul 2010 16:48:06 -0700
x86, cpu: Add xsaveopt cpufeature
Add cpu feature bit support for the XSAVEOPT instruction.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
LKML-Reference: <20100719230205.523204988@sbs-t61.sc.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
arch/x86/include/asm/cpufeature.h | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 3ec9275..d5ea3e3 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/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:[~2010-07-20 0:52 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 ` [patch 4/5] x86: Add xsaveopt cpufeature Suresh Siddha
2010-07-20 0:52 ` tip-bot for Suresh Siddha [this message]
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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