diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.9.21/0082-x86-cpufeature-Move-processor-tracing-out-of-scatter.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.9.21/0082-x86-cpufeature-Move-processor-tracing-out-of-scatter.patch | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.9.21/0082-x86-cpufeature-Move-processor-tracing-out-of-scatter.patch b/common/recipes-kernel/linux/linux-yocto-4.9.21/0082-x86-cpufeature-Move-processor-tracing-out-of-scatter.patch deleted file mode 100644 index c57772cc..00000000 --- a/common/recipes-kernel/linux/linux-yocto-4.9.21/0082-x86-cpufeature-Move-processor-tracing-out-of-scatter.patch +++ /dev/null @@ -1,73 +0,0 @@ -From f062c304538bab4228fa57dfe33eb1521d764127 Mon Sep 17 00:00:00 2001 -From: Paolo Bonzini <pbonzini@redhat.com> -Date: Tue, 16 Jan 2018 16:42:25 +0100 -Subject: [PATCH 082/103] x86/cpufeature: Move processor tracing out of - scattered features -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -commit 4fdec2034b7540dda461c6ba33325dfcff345c64 upstream. - -Processor tracing is already enumerated in word 9 (CPUID[7,0].EBX), -so do not duplicate it in the scattered features word. - -Besides being more tidy, this will be useful for KVM when it presents -processor tracing to the guests. KVM selects host features that are -supported by both the host kernel (depending on command line options, -CPU errata, or whatever) and KVM. Whenever a full feature word exists, -KVM's code is written in the expectation that the CPUID bit number -matches the X86_FEATURE_* bit number, but this is not the case for -X86_FEATURE_INTEL_PT. - -Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> -Cc: Borislav Petkov <bp@suse.de> -Cc: Linus Torvalds <torvalds@linux-foundation.org> -Cc: Luwei Kang <luwei.kang@intel.com> -Cc: Peter Zijlstra <peterz@infradead.org> -Cc: Radim Krčmář <rkrcmar@redhat.com> -Cc: Thomas Gleixner <tglx@linutronix.de> -Cc: kvm@vger.kernel.org -Link: http://lkml.kernel.org/r/1516117345-34561-1-git-send-email-pbonzini@redhat.com -Signed-off-by: Ingo Molnar <mingo@kernel.org> -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - 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 2f60cb5..8537a21 100644 ---- a/arch/x86/include/asm/cpufeatures.h -+++ b/arch/x86/include/asm/cpufeatures.h -@@ -197,7 +197,6 @@ - #define X86_FEATURE_RETPOLINE ( 7*32+12) /* Generic Retpoline mitigation for Spectre variant 2 */ - #define X86_FEATURE_RETPOLINE_AMD ( 7*32+13) /* AMD Retpoline mitigation for Spectre variant 2 */ - --#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 */ - #define X86_FEATURE_RSB_CTXSW ( 7*32+19) /* Fill RSB on context switches */ -@@ -236,6 +235,7 @@ - #define X86_FEATURE_SMAP ( 9*32+20) /* Supervisor Mode Access Prevention */ - #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 1db8dc4..b0dd9ae 100644 ---- a/arch/x86/kernel/cpu/scattered.c -+++ b/arch/x86/kernel/cpu/scattered.c -@@ -31,7 +31,6 @@ void init_scattered_cpuid_features(struct cpuinfo_x86 *c) - const struct cpuid_bit *cb; - - static const struct cpuid_bit cpuid_bits[] = { -- { X86_FEATURE_INTEL_PT, CR_EBX,25, 0x00000007, 0 }, - { X86_FEATURE_AVX512_4VNNIW, CR_EDX, 2, 0x00000007, 0 }, - { X86_FEATURE_AVX512_4FMAPS, CR_EDX, 3, 0x00000007, 0 }, - { X86_FEATURE_APERFMPERF, CR_ECX, 0, 0x00000006, 0 }, --- -2.7.4 - |