* [PATCH 0/4 -v2] x86: update AMD CPUID bits
@ 2010-09-06 13:14 Andre Przywara
2010-09-06 13:14 ` [PATCH 1/4] x86: Fix misnamed AMD CPUID feature bit Andre Przywara
` (3 more replies)
0 siblings, 4 replies; 10+ messages in thread
From: Andre Przywara @ 2010-09-06 13:14 UTC (permalink / raw)
To: hpa, tglx, mingo; +Cc: linux-kernel, kvm
Changes from v1:
- pull SSE5^WXOP bit from KVM features to patch 1
- add AES and F16C to list of propagated features
- add kvm@vger to CC ;-)
Recently the public AMD CPUID specification
http://support.amd.com/us/Processor_TechDocs/25481.pdf
has been updated and revealed new CPUID flag feature names.
The following patches introduce them to the kernel to properly
display them in /proc/cpuinfo and allows KVM guests to use them.
Note: One bit has been renamed, so I propose patch 1/4 for inclusion
in the stable series.
Please apply!
Regards,
Andre.
--
Andre Przywara
AMD-Operating System Research Center (OSRC), Dresden, Germany
^ permalink raw reply [flat|nested] 10+ messages in thread* [PATCH 1/4] x86: Fix misnamed AMD CPUID feature bit 2010-09-06 13:14 [PATCH 0/4 -v2] x86: update AMD CPUID bits Andre Przywara @ 2010-09-06 13:14 ` Andre Przywara 2010-09-08 21:27 ` [tip:x86/cpu] x86, cpu: Fix renamed, not-yet-shipping " tip-bot for Andre Przywara 2010-09-06 13:14 ` [PATCH 2/4] x86: Update AMD CPUID feature bits Andre Przywara ` (2 subsequent siblings) 3 siblings, 1 reply; 10+ messages in thread From: Andre Przywara @ 2010-09-06 13:14 UTC (permalink / raw) To: hpa, tglx, mingo Cc: linux-kernel, kvm, Andre Przywara, <stable, [.32.x.34.x>, ".35.x] The AMD SSE5 feature set as-it has been replaced by some extensions to the AVX instruction set. Thus the bit formerly advertised as SSE5 is re-used for one of these extensions (XOP). Although this changes the /proc/cpuinfo output, it is not user visible, as there are no CPUs (yet) having this feature. To avoid confusion this should be added to the stable series, too. Cc: stable@kernel.org [.32.x .34.x, .35.x] Signed-off-by: Andre Przywara <andre.przywara@amd.com> --- arch/x86/include/asm/cpufeature.h | 2 +- arch/x86/kvm/x86.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 781a50b..c9c73d8 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -152,7 +152,7 @@ #define X86_FEATURE_3DNOWPREFETCH (6*32+ 8) /* 3DNow prefetch instructions */ #define X86_FEATURE_OSVW (6*32+ 9) /* OS Visible Workaround */ #define X86_FEATURE_IBS (6*32+10) /* Instruction Based Sampling */ -#define X86_FEATURE_SSE5 (6*32+11) /* SSE-5 */ +#define X86_FEATURE_XOP (6*32+11) /* extended AVX instructions */ #define X86_FEATURE_SKINIT (6*32+12) /* SKINIT/STGI instructions */ #define X86_FEATURE_WDT (6*32+13) /* Watchdog timer */ #define X86_FEATURE_NODEID_MSR (6*32+19) /* NodeId MSR */ diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 3a09c62..dd54779 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1996,7 +1996,7 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, const u32 kvm_supported_word6_x86_features = F(LAHF_LM) | F(CMP_LEGACY) | F(SVM) | 0 /* ExtApicSpace */ | F(CR8_LEGACY) | F(ABM) | F(SSE4A) | F(MISALIGNSSE) | - F(3DNOWPREFETCH) | 0 /* OSVW */ | 0 /* IBS */ | F(SSE5) | + F(3DNOWPREFETCH) | 0 /* OSVW */ | 0 /* IBS */ | F(XOP) | 0 /* SKINIT */ | 0 /* WDT */; /* all calls to cpuid_count() should be made on the same cpu */ -- 1.6.4 ^ permalink raw reply [flat|nested] 10+ messages in thread
* [tip:x86/cpu] x86, cpu: Fix renamed, not-yet-shipping AMD CPUID feature bit 2010-09-06 13:14 ` [PATCH 1/4] x86: Fix misnamed AMD CPUID feature bit Andre Przywara @ 2010-09-08 21:27 ` tip-bot for Andre Przywara 0 siblings, 0 replies; 10+ messages in thread From: tip-bot for Andre Przywara @ 2010-09-08 21:27 UTC (permalink / raw) To: linux-tip-commits; +Cc: linux-kernel, hpa, mingo, andre.przywara, tglx, hpa Commit-ID: 7ef8aa72ab176e0288f363d1247079732c5d5792 Gitweb: http://git.kernel.org/tip/7ef8aa72ab176e0288f363d1247079732c5d5792 Author: Andre Przywara <andre.przywara@amd.com> AuthorDate: Mon, 6 Sep 2010 15:14:17 +0200 Committer: H. Peter Anvin <hpa@linux.intel.com> CommitDate: Wed, 8 Sep 2010 13:32:55 -0700 x86, cpu: Fix renamed, not-yet-shipping AMD CPUID feature bit The AMD SSE5 feature set as-it has been replaced by some extensions to the AVX instruction set. Thus the bit formerly advertised as SSE5 is re-used for one of these extensions (XOP). Although this changes the /proc/cpuinfo output, it is not user visible, as there are no CPUs (yet) having this feature. To avoid confusion this should be added to the stable series, too. Cc: stable@kernel.org [.32.x .34.x, .35.x] Signed-off-by: Andre Przywara <andre.przywara@amd.com> LKML-Reference: <1283778860-26843-2-git-send-email-andre.przywara@amd.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> --- arch/x86/include/asm/cpufeature.h | 2 +- arch/x86/kvm/x86.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 781a50b..c9c73d8 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -152,7 +152,7 @@ #define X86_FEATURE_3DNOWPREFETCH (6*32+ 8) /* 3DNow prefetch instructions */ #define X86_FEATURE_OSVW (6*32+ 9) /* OS Visible Workaround */ #define X86_FEATURE_IBS (6*32+10) /* Instruction Based Sampling */ -#define X86_FEATURE_SSE5 (6*32+11) /* SSE-5 */ +#define X86_FEATURE_XOP (6*32+11) /* extended AVX instructions */ #define X86_FEATURE_SKINIT (6*32+12) /* SKINIT/STGI instructions */ #define X86_FEATURE_WDT (6*32+13) /* Watchdog timer */ #define X86_FEATURE_NODEID_MSR (6*32+19) /* NodeId MSR */ diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 3a09c62..dd54779 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1996,7 +1996,7 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, const u32 kvm_supported_word6_x86_features = F(LAHF_LM) | F(CMP_LEGACY) | F(SVM) | 0 /* ExtApicSpace */ | F(CR8_LEGACY) | F(ABM) | F(SSE4A) | F(MISALIGNSSE) | - F(3DNOWPREFETCH) | 0 /* OSVW */ | 0 /* IBS */ | F(SSE5) | + F(3DNOWPREFETCH) | 0 /* OSVW */ | 0 /* IBS */ | F(XOP) | 0 /* SKINIT */ | 0 /* WDT */; /* all calls to cpuid_count() should be made on the same cpu */ ^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH 2/4] x86: Update AMD CPUID feature bits 2010-09-06 13:14 [PATCH 0/4 -v2] x86: update AMD CPUID bits Andre Przywara 2010-09-06 13:14 ` [PATCH 1/4] x86: Fix misnamed AMD CPUID feature bit Andre Przywara @ 2010-09-06 13:14 ` Andre Przywara 2010-09-08 21:28 ` [tip:x86/cpu] x86, cpu: " tip-bot for Andre Przywara 2010-09-06 13:14 ` [PATCH 3/4] x86: Fix allowed CPUID bits for KVM guests Andre Przywara 2010-09-06 13:14 ` [PATCH 4/4] x86, kvm: add new AMD SVM feature bits Andre Przywara 3 siblings, 1 reply; 10+ messages in thread From: Andre Przywara @ 2010-09-06 13:14 UTC (permalink / raw) To: hpa, tglx, mingo; +Cc: linux-kernel, kvm, Andre Przywara AMD's public CPUID specification has been updated and some bits have got names. Add them to properly describe new CPU features. Signed-off-by: Andre Przywara <andre.przywara@amd.com> --- arch/x86/include/asm/cpufeature.h | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index c9c73d8..341835d 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -155,7 +155,11 @@ #define X86_FEATURE_XOP (6*32+11) /* extended AVX instructions */ #define X86_FEATURE_SKINIT (6*32+12) /* SKINIT/STGI instructions */ #define X86_FEATURE_WDT (6*32+13) /* Watchdog timer */ +#define X86_FEATURE_LWP (6*32+15) /* Light Weight Profiling */ +#define X86_FEATURE_FMA4 (6*32+16) /* 4 operands MAC instructions */ #define X86_FEATURE_NODEID_MSR (6*32+19) /* NodeId MSR */ +#define X86_FEATURE_TBM (6*32+21) /* trailing bit manipulations */ +#define X86_FEATURE_TOPOEXT (6*32+22) /* topology extensions CPUID leafs */ /* * Auxiliary flags: Linux defined - For features scattered in various -- 1.6.4 ^ permalink raw reply [flat|nested] 10+ messages in thread
* [tip:x86/cpu] x86, cpu: Update AMD CPUID feature bits 2010-09-06 13:14 ` [PATCH 2/4] x86: Update AMD CPUID feature bits Andre Przywara @ 2010-09-08 21:28 ` tip-bot for Andre Przywara 0 siblings, 0 replies; 10+ messages in thread From: tip-bot for Andre Przywara @ 2010-09-08 21:28 UTC (permalink / raw) To: linux-tip-commits; +Cc: linux-kernel, hpa, mingo, andre.przywara, tglx, hpa Commit-ID: 33ed82fb6c5f032151f7e9f1ac7b667f78f426b8 Gitweb: http://git.kernel.org/tip/33ed82fb6c5f032151f7e9f1ac7b667f78f426b8 Author: Andre Przywara <andre.przywara@amd.com> AuthorDate: Mon, 6 Sep 2010 15:14:18 +0200 Committer: H. Peter Anvin <hpa@linux.intel.com> CommitDate: Wed, 8 Sep 2010 13:34:15 -0700 x86, cpu: Update AMD CPUID feature bits AMD's public CPUID specification has been updated and some bits have got names. Add them to properly describe new CPU features. Signed-off-by: Andre Przywara <andre.przywara@amd.com> LKML-Reference: <1283778860-26843-3-git-send-email-andre.przywara@amd.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> --- arch/x86/include/asm/cpufeature.h | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index c9c73d8..341835df 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -155,7 +155,11 @@ #define X86_FEATURE_XOP (6*32+11) /* extended AVX instructions */ #define X86_FEATURE_SKINIT (6*32+12) /* SKINIT/STGI instructions */ #define X86_FEATURE_WDT (6*32+13) /* Watchdog timer */ +#define X86_FEATURE_LWP (6*32+15) /* Light Weight Profiling */ +#define X86_FEATURE_FMA4 (6*32+16) /* 4 operands MAC instructions */ #define X86_FEATURE_NODEID_MSR (6*32+19) /* NodeId MSR */ +#define X86_FEATURE_TBM (6*32+21) /* trailing bit manipulations */ +#define X86_FEATURE_TOPOEXT (6*32+22) /* topology extensions CPUID leafs */ /* * Auxiliary flags: Linux defined - For features scattered in various ^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH 3/4] x86: Fix allowed CPUID bits for KVM guests 2010-09-06 13:14 [PATCH 0/4 -v2] x86: update AMD CPUID bits Andre Przywara 2010-09-06 13:14 ` [PATCH 1/4] x86: Fix misnamed AMD CPUID feature bit Andre Przywara 2010-09-06 13:14 ` [PATCH 2/4] x86: Update AMD CPUID feature bits Andre Przywara @ 2010-09-06 13:14 ` Andre Przywara 2010-09-06 18:47 ` Avi Kivity 2010-09-08 21:28 ` [tip:x86/cpu] x86, cpu: " tip-bot for Andre Przywara 2010-09-06 13:14 ` [PATCH 4/4] x86, kvm: add new AMD SVM feature bits Andre Przywara 3 siblings, 2 replies; 10+ messages in thread From: Andre Przywara @ 2010-09-06 13:14 UTC (permalink / raw) To: hpa, tglx, mingo; +Cc: linux-kernel, kvm, Andre Przywara The AMD extensions to AVX (FMA4, XOP) work on the same YMM register set as AVX, so they are safe for guests to use, as long as AVX itself is allowed. Add F16C and AES on the way for the same reasons. Signed-off-by: Andre Przywara <andre.przywara@amd.com> --- arch/x86/kvm/x86.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index dd54779..6c2ecf0 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1991,13 +1991,14 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, 0 /* Reserved */ | F(CX16) | 0 /* xTPR Update, PDCM */ | 0 /* Reserved, DCA */ | F(XMM4_1) | F(XMM4_2) | F(X2APIC) | F(MOVBE) | F(POPCNT) | - 0 /* Reserved, AES */ | F(XSAVE) | 0 /* OSXSAVE */ | F(AVX); + 0 /* Reserved*/ | F(AES) | F(XSAVE) | 0 /* OSXSAVE */ | F(AVX) | + F(F16C); /* cpuid 0x80000001.ecx */ const u32 kvm_supported_word6_x86_features = F(LAHF_LM) | F(CMP_LEGACY) | F(SVM) | 0 /* ExtApicSpace */ | F(CR8_LEGACY) | F(ABM) | F(SSE4A) | F(MISALIGNSSE) | F(3DNOWPREFETCH) | 0 /* OSVW */ | 0 /* IBS */ | F(XOP) | - 0 /* SKINIT */ | 0 /* WDT */; + 0 /* SKINIT, WDT, LWP */ | F(FMA4) | F(TBM); /* all calls to cpuid_count() should be made on the same cpu */ get_cpu(); -- 1.6.4 ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 3/4] x86: Fix allowed CPUID bits for KVM guests 2010-09-06 13:14 ` [PATCH 3/4] x86: Fix allowed CPUID bits for KVM guests Andre Przywara @ 2010-09-06 18:47 ` Avi Kivity 2010-09-08 21:28 ` [tip:x86/cpu] x86, cpu: " tip-bot for Andre Przywara 1 sibling, 0 replies; 10+ messages in thread From: Avi Kivity @ 2010-09-06 18:47 UTC (permalink / raw) To: Andre Przywara; +Cc: hpa, tglx, mingo, linux-kernel, kvm On 09/06/2010 04:14 PM, Andre Przywara wrote: > The AMD extensions to AVX (FMA4, XOP) work on the same YMM register set > as AVX, so they are safe for guests to use, as long as AVX itself > is allowed. Add F16C and AES on the way for the same reasons. Acked-by: Avi Kivity <avi@redhat.com> -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain. ^ permalink raw reply [flat|nested] 10+ messages in thread
* [tip:x86/cpu] x86, cpu: Fix allowed CPUID bits for KVM guests 2010-09-06 13:14 ` [PATCH 3/4] x86: Fix allowed CPUID bits for KVM guests Andre Przywara 2010-09-06 18:47 ` Avi Kivity @ 2010-09-08 21:28 ` tip-bot for Andre Przywara 1 sibling, 0 replies; 10+ messages in thread From: tip-bot for Andre Przywara @ 2010-09-08 21:28 UTC (permalink / raw) To: linux-tip-commits Cc: linux-kernel, hpa, mingo, andre.przywara, tglx, hpa, avi Commit-ID: 6d886fd042634c0d3312bace63a5d0c541b721dc Gitweb: http://git.kernel.org/tip/6d886fd042634c0d3312bace63a5d0c541b721dc Author: Andre Przywara <andre.przywara@amd.com> AuthorDate: Mon, 6 Sep 2010 15:14:19 +0200 Committer: H. Peter Anvin <hpa@linux.intel.com> CommitDate: Wed, 8 Sep 2010 13:34:15 -0700 x86, cpu: Fix allowed CPUID bits for KVM guests The AMD extensions to AVX (FMA4, XOP) work on the same YMM register set as AVX, so they are safe for guests to use, as long as AVX itself is allowed. Add F16C and AES on the way for the same reasons. Signed-off-by: Andre Przywara <andre.przywara@amd.com> LKML-Reference: <1283778860-26843-4-git-send-email-andre.przywara@amd.com> Acked-by: Avi Kivity <avi@redhat.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> --- arch/x86/kvm/x86.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index dd54779..6c2ecf0 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1991,13 +1991,14 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, 0 /* Reserved */ | F(CX16) | 0 /* xTPR Update, PDCM */ | 0 /* Reserved, DCA */ | F(XMM4_1) | F(XMM4_2) | F(X2APIC) | F(MOVBE) | F(POPCNT) | - 0 /* Reserved, AES */ | F(XSAVE) | 0 /* OSXSAVE */ | F(AVX); + 0 /* Reserved*/ | F(AES) | F(XSAVE) | 0 /* OSXSAVE */ | F(AVX) | + F(F16C); /* cpuid 0x80000001.ecx */ const u32 kvm_supported_word6_x86_features = F(LAHF_LM) | F(CMP_LEGACY) | F(SVM) | 0 /* ExtApicSpace */ | F(CR8_LEGACY) | F(ABM) | F(SSE4A) | F(MISALIGNSSE) | F(3DNOWPREFETCH) | 0 /* OSVW */ | 0 /* IBS */ | F(XOP) | - 0 /* SKINIT */ | 0 /* WDT */; + 0 /* SKINIT, WDT, LWP */ | F(FMA4) | F(TBM); /* all calls to cpuid_count() should be made on the same cpu */ get_cpu(); ^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH 4/4] x86, kvm: add new AMD SVM feature bits 2010-09-06 13:14 [PATCH 0/4 -v2] x86: update AMD CPUID bits Andre Przywara ` (2 preceding siblings ...) 2010-09-06 13:14 ` [PATCH 3/4] x86: Fix allowed CPUID bits for KVM guests Andre Przywara @ 2010-09-06 13:14 ` Andre Przywara 2010-09-08 21:28 ` [tip:x86/cpu] " tip-bot for Andre Przywara 3 siblings, 1 reply; 10+ messages in thread From: Andre Przywara @ 2010-09-06 13:14 UTC (permalink / raw) To: hpa, tglx, mingo; +Cc: linux-kernel, kvm, Andre Przywara The recently updated CPUID specification names new SVM feature bits. Add them to the list of reported features. Signed-off-by: Andre Przywara <andre.przywara@amd,com> --- arch/x86/include/asm/cpufeature.h | 7 +++++++ arch/x86/kernel/cpu/scattered.c | 6 ++++++ 2 files changed, 13 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 341835d..bffeab7 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -183,6 +183,13 @@ #define X86_FEATURE_LBRV (8*32+ 6) /* AMD LBR Virtualization support */ #define X86_FEATURE_SVML (8*32+ 7) /* "svm_lock" AMD SVM locking MSR */ #define X86_FEATURE_NRIPS (8*32+ 8) /* "nrip_save" AMD SVM next_rip save */ +#define X86_FEATURE_TSCRATEMSR (8*32+ 9) /* "tsc_scale" AMD TSC scaling support */ +#define X86_FEATURE_VMCBCLEAN (8*32+10) /* "vmcb_clean" AMD VMCB clean bits support */ +#define X86_FEATURE_FLUSHBYASID (8*32+11) /* AMD flush-by-ASID support */ +#define X86_FEATURE_DECODEASSISTS (8*32+12) /* AMD Decode Assists support */ +#define X86_FEATURE_PAUSEFILTER (8*32+13) /* AMD filtered pause intercept */ +#define X86_FEATURE_PFTHRESHOLD (8*32+14) /* AMD pause filter threshold */ + /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */ #define X86_FEATURE_FSGSBASE (9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/ diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c index 34b4dad..2c77931 100644 --- a/arch/x86/kernel/cpu/scattered.c +++ b/arch/x86/kernel/cpu/scattered.c @@ -43,6 +43,12 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c) { X86_FEATURE_LBRV, CR_EDX, 1, 0x8000000a, 0 }, { X86_FEATURE_SVML, CR_EDX, 2, 0x8000000a, 0 }, { X86_FEATURE_NRIPS, CR_EDX, 3, 0x8000000a, 0 }, + { X86_FEATURE_TSCRATEMSR, CR_EDX, 4, 0x8000000a, 0 }, + { X86_FEATURE_VMCBCLEAN, CR_EDX, 5, 0x8000000a, 0 }, + { X86_FEATURE_FLUSHBYASID, CR_EDX, 6, 0x8000000a, 0 }, + { X86_FEATURE_DECODEASSISTS, CR_EDX, 7, 0x8000000a, 0 }, + { X86_FEATURE_PAUSEFILTER, CR_EDX,10, 0x8000000a, 0 }, + { X86_FEATURE_PFTHRESHOLD, CR_EDX,12, 0x8000000a, 0 }, { 0, 0, 0, 0, 0 } }; -- 1.6.4 ^ permalink raw reply [flat|nested] 10+ messages in thread
* [tip:x86/cpu] x86, kvm: add new AMD SVM feature bits 2010-09-06 13:14 ` [PATCH 4/4] x86, kvm: add new AMD SVM feature bits Andre Przywara @ 2010-09-08 21:28 ` tip-bot for Andre Przywara 0 siblings, 0 replies; 10+ messages in thread From: tip-bot for Andre Przywara @ 2010-09-08 21:28 UTC (permalink / raw) To: linux-tip-commits; +Cc: linux-kernel, hpa, mingo, andre.przywara, tglx, hpa Commit-ID: aeb9c7d618264dcf6eea39142fefee096c3b09e2 Gitweb: http://git.kernel.org/tip/aeb9c7d618264dcf6eea39142fefee096c3b09e2 Author: Andre Przywara <andre.przywara@amd.com> AuthorDate: Mon, 6 Sep 2010 15:14:20 +0200 Committer: H. Peter Anvin <hpa@linux.intel.com> CommitDate: Wed, 8 Sep 2010 13:34:15 -0700 x86, kvm: add new AMD SVM feature bits The recently updated CPUID specification names new SVM feature bits. Add them to the list of reported features. Signed-off-by: Andre Przywara <andre.przywara@amd,com> LKML-Reference: <1283778860-26843-5-git-send-email-andre.przywara@amd.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> --- arch/x86/include/asm/cpufeature.h | 7 +++++++ arch/x86/kernel/cpu/scattered.c | 6 ++++++ 2 files changed, 13 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 341835df..bffeab7 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -183,6 +183,13 @@ #define X86_FEATURE_LBRV (8*32+ 6) /* AMD LBR Virtualization support */ #define X86_FEATURE_SVML (8*32+ 7) /* "svm_lock" AMD SVM locking MSR */ #define X86_FEATURE_NRIPS (8*32+ 8) /* "nrip_save" AMD SVM next_rip save */ +#define X86_FEATURE_TSCRATEMSR (8*32+ 9) /* "tsc_scale" AMD TSC scaling support */ +#define X86_FEATURE_VMCBCLEAN (8*32+10) /* "vmcb_clean" AMD VMCB clean bits support */ +#define X86_FEATURE_FLUSHBYASID (8*32+11) /* AMD flush-by-ASID support */ +#define X86_FEATURE_DECODEASSISTS (8*32+12) /* AMD Decode Assists support */ +#define X86_FEATURE_PAUSEFILTER (8*32+13) /* AMD filtered pause intercept */ +#define X86_FEATURE_PFTHRESHOLD (8*32+14) /* AMD pause filter threshold */ + /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */ #define X86_FEATURE_FSGSBASE (9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/ diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c index 34b4dad..2c77931 100644 --- a/arch/x86/kernel/cpu/scattered.c +++ b/arch/x86/kernel/cpu/scattered.c @@ -43,6 +43,12 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c) { X86_FEATURE_LBRV, CR_EDX, 1, 0x8000000a, 0 }, { X86_FEATURE_SVML, CR_EDX, 2, 0x8000000a, 0 }, { X86_FEATURE_NRIPS, CR_EDX, 3, 0x8000000a, 0 }, + { X86_FEATURE_TSCRATEMSR, CR_EDX, 4, 0x8000000a, 0 }, + { X86_FEATURE_VMCBCLEAN, CR_EDX, 5, 0x8000000a, 0 }, + { X86_FEATURE_FLUSHBYASID, CR_EDX, 6, 0x8000000a, 0 }, + { X86_FEATURE_DECODEASSISTS, CR_EDX, 7, 0x8000000a, 0 }, + { X86_FEATURE_PAUSEFILTER, CR_EDX,10, 0x8000000a, 0 }, + { X86_FEATURE_PFTHRESHOLD, CR_EDX,12, 0x8000000a, 0 }, { 0, 0, 0, 0, 0 } }; ^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2010-09-08 21:29 UTC | newest] Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2010-09-06 13:14 [PATCH 0/4 -v2] x86: update AMD CPUID bits Andre Przywara 2010-09-06 13:14 ` [PATCH 1/4] x86: Fix misnamed AMD CPUID feature bit Andre Przywara 2010-09-08 21:27 ` [tip:x86/cpu] x86, cpu: Fix renamed, not-yet-shipping " tip-bot for Andre Przywara 2010-09-06 13:14 ` [PATCH 2/4] x86: Update AMD CPUID feature bits Andre Przywara 2010-09-08 21:28 ` [tip:x86/cpu] x86, cpu: " tip-bot for Andre Przywara 2010-09-06 13:14 ` [PATCH 3/4] x86: Fix allowed CPUID bits for KVM guests Andre Przywara 2010-09-06 18:47 ` Avi Kivity 2010-09-08 21:28 ` [tip:x86/cpu] x86, cpu: " tip-bot for Andre Przywara 2010-09-06 13:14 ` [PATCH 4/4] x86, kvm: add new AMD SVM feature bits Andre Przywara 2010-09-08 21:28 ` [tip:x86/cpu] " tip-bot for Andre Przywara
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