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From: Luwei Kang <luwei.kang@intel.com>
To: kvm@vger.kernel.org
Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
	x86@kernel.org, pbonzini@redhat.com, rkrcmar@redhat.com,
	linux-kernel@vger.kernel.org, joro@8bytes.org
Subject: [PATCH V4 04/11] x86: cpufeature: move processor tracing out of scattered features
Date: Mon, 11 Dec 2017 04:30:50 +0800	[thread overview]
Message-ID: <1512937857-10477-5-git-send-email-luwei.kang@intel.com> (raw)
In-Reply-To: <1512937857-10477-1-git-send-email-luwei.kang@intel.com>

From: Paolo Bonzini <pbonzini@redhat.com>

Processor tracing is already enumerated in word 9 (CPUID[7,0].EBX),
so do not duplicate it in the scattered features word.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/include/asm/cpufeatures.h | 2 +-
 arch/x86/kernel/cpu/scattered.c    | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index c0b0e9e..3e03cbe 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -203,7 +203,6 @@
 #define X86_FEATURE_SME			( 7*32+10) /* AMD Secure Memory Encryption */
 
 #define X86_FEATURE_INTEL_PPIN		( 7*32+14) /* Intel Processor Inventory Number */
-#define X86_FEATURE_INTEL_PT		( 7*32+15) /* Intel Processor Trace */
 #define X86_FEATURE_AVX512_4VNNIW	( 7*32+16) /* AVX-512 Neural Network Instructions */
 #define X86_FEATURE_AVX512_4FMAPS	( 7*32+17) /* AVX-512 Multiply Accumulation Single precision */
 
@@ -242,6 +241,7 @@
 #define X86_FEATURE_AVX512IFMA		( 9*32+21) /* AVX-512 Integer Fused Multiply-Add instructions */
 #define X86_FEATURE_CLFLUSHOPT		( 9*32+23) /* CLFLUSHOPT instruction */
 #define X86_FEATURE_CLWB		( 9*32+24) /* CLWB instruction */
+#define X86_FEATURE_INTEL_PT		( 9*32+25) /* Intel Processor Trace */
 #define X86_FEATURE_AVX512PF		( 9*32+26) /* AVX-512 Prefetch */
 #define X86_FEATURE_AVX512ER		( 9*32+27) /* AVX-512 Exponential and Reciprocal */
 #define X86_FEATURE_AVX512CD		( 9*32+28) /* AVX-512 Conflict Detection */
diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c
index 05459ad..d0e6976 100644
--- a/arch/x86/kernel/cpu/scattered.c
+++ b/arch/x86/kernel/cpu/scattered.c
@@ -21,7 +21,6 @@ struct cpuid_bit {
 static const struct cpuid_bit cpuid_bits[] = {
 	{ X86_FEATURE_APERFMPERF,       CPUID_ECX,  0, 0x00000006, 0 },
 	{ X86_FEATURE_EPB,		CPUID_ECX,  3, 0x00000006, 0 },
-	{ X86_FEATURE_INTEL_PT,		CPUID_EBX, 25, 0x00000007, 0 },
 	{ X86_FEATURE_AVX512_4VNNIW,    CPUID_EDX,  2, 0x00000007, 0 },
 	{ X86_FEATURE_AVX512_4FMAPS,    CPUID_EDX,  3, 0x00000007, 0 },
 	{ X86_FEATURE_CAT_L3,		CPUID_EBX,  1, 0x00000010, 0 },
-- 
1.8.3.1

  parent reply	other threads:[~2017-12-11 10:15 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-10 20:30 [PATCH V4 00/11] Intel Processor Trace virtulization enabling Luwei Kang
2017-12-10 20:30 ` [PATCH V4 01/11] perf/x86/intel/pt: Move Intel-PT MSR bit definitions to a public header Luwei Kang
2017-12-10 20:30 ` [PATCH V4 02/11] perf/x86/intel/pt: Change pt_cap_get() to a public function Luwei Kang
2017-12-10 20:30 ` [PATCH V4 03/11] KVM: x86: Add Intel Processor Trace virtualization mode Luwei Kang
2017-12-10 20:30 ` Luwei Kang [this message]
2017-12-10 20:30 ` [PATCH V4 05/11] KVM: x86: Add Intel Processor Trace cpuid emulation Luwei Kang
2017-12-10 20:30 ` [PATCH V4 06/11] KVM: x86: Add a function to get the number of address ranges Luwei Kang
2017-12-10 20:30 ` [PATCH V4 07/11] KVM: x86: Add a function to disable/enable Intel PT MSRs intercept Luwei Kang
2017-12-10 20:30 ` [PATCH V4 08/11] KVM: x86: Add Intel processor trace context for each vcpu Luwei Kang
2017-12-10 20:30 ` [PATCH V4 09/11] KVM: x86: Disable Intel Processor Trace when VMXON in L1 guest Luwei Kang
     [not found]   ` <CALMp9eT63cMpJYBLP=9nSApP+=kwyht-XiDamHd6APfXr269Bg@mail.gmail.com>
2018-01-09 21:39     ` Paolo Bonzini
2017-12-10 20:30 ` [PATCH V4 10/11] KVM: x86: Implement Intel Processor Trace MSRs read/write Luwei Kang
2017-12-10 20:30 ` [PATCH V4 11/11] KVM: x86: Implement Intel Processor Trace context switch Luwei Kang
2017-12-12 17:06   ` Paolo Bonzini
2017-12-12 17:09 ` [PATCH V4 00/11] Intel Processor Trace virtulization enabling Paolo Bonzini

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