[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen staging-4.14] x86/cpuid: Infrastructure for leaves 7:1{ecx,edx}
commit 56c68aec53154ee8f28a713f6fa141e1dc3f2dd4 Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> AuthorDate: Fri Mar 3 08:06:44 2023 +0100 Commit: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> CommitDate: Thu Aug 3 19:14:19 2023 +0100 x86/cpuid: Infrastructure for leaves 7:1{ecx,edx} We don't actually need ecx yet, but adding it in now will reduce the amount to which leaf 7 is out of order in a featureset. Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx> (cherry picked from commit b4a23bf6293aadecfd03bf9e83974443e2eac9cb) --- tools/misc/xen-cpuid.c | 10 ++++++++++ xen/arch/x86/cpu/common.c | 3 ++- xen/include/public/arch-x86/cpufeatureset.h | 4 ++++ xen/include/xen/lib/x86/cpuid.h | 17 +++++++++++++++-- 4 files changed, 31 insertions(+), 3 deletions(-) diff --git a/tools/misc/xen-cpuid.c b/tools/misc/xen-cpuid.c index 7771da4953..913e0e5dc1 100644 --- a/tools/misc/xen-cpuid.c +++ b/tools/misc/xen-cpuid.c @@ -193,6 +193,14 @@ static const char *const str_7b1[32] = { }; +static const char *const str_7c1[32] = +{ +}; + +static const char *const str_7d1[32] = +{ +}; + static const char *const str_7d2[32] = { [ 0] = "intel-psfd", @@ -218,6 +226,8 @@ static const struct { { "0x80000021.eax", "e21a", str_e21a }, { "0x00000007:1.ebx", "7b1", str_7b1 }, { "0x00000007:2.edx", "7d2", str_7d2 }, + { "0x00000007:1.ecx", "7c1", str_7c1 }, + { "0x00000007:1.edx", "7d1", str_7d1 }, }; #define COL_ALIGN "18" diff --git a/xen/arch/x86/cpu/common.c b/xen/arch/x86/cpu/common.c index dd592a69c5..70e6dea04a 100644 --- a/xen/arch/x86/cpu/common.c +++ b/xen/arch/x86/cpu/common.c @@ -435,7 +435,8 @@ static void generic_identify(struct cpuinfo_x86 *c) cpuid_count(7, 1, &c->x86_capability[FEATURESET_7a1], &c->x86_capability[FEATURESET_7b1], - &tmp, &tmp); + &c->x86_capability[FEATURESET_7c1], + &c->x86_capability[FEATURESET_7d1]); if (max_subleaf >= 2) cpuid_count(7, 2, &tmp, &tmp, &tmp, diff --git a/xen/include/public/arch-x86/cpufeatureset.h b/xen/include/public/arch-x86/cpufeatureset.h index e536ab42b3..b09d5bd907 100644 --- a/xen/include/public/arch-x86/cpufeatureset.h +++ b/xen/include/public/arch-x86/cpufeatureset.h @@ -295,6 +295,10 @@ XEN_CPUFEATURE(LFENCE_DISPATCH, 11*32+ 2) /*A LFENCE always serializing */ /* Intel-defined CPU features, CPUID level 0x00000007:2.edx, word 13 */ XEN_CPUFEATURE(INTEL_PSFD, 13*32+ 0) /*A MSR_SPEC_CTRL.PSFD */ +/* Intel-defined CPU features, CPUID level 0x00000007:1.ecx, word 14 */ + +/* Intel-defined CPU features, CPUID level 0x00000007:1.edx, word 15 */ + #endif /* XEN_CPUFEATURE */ /* Clean up from a default include. Close the enum (for C). */ diff --git a/xen/include/xen/lib/x86/cpuid.h b/xen/include/xen/lib/x86/cpuid.h index 50be07c0eb..fa98b371ee 100644 --- a/xen/include/xen/lib/x86/cpuid.h +++ b/xen/include/xen/lib/x86/cpuid.h @@ -17,7 +17,9 @@ #define FEATURESET_7a1 10 /* 0x00000007:1.eax */ #define FEATURESET_e21a 11 /* 0x80000021.eax */ #define FEATURESET_7b1 12 /* 0x00000007:1.ebx */ -#define FEATURESET_7d2 13 /* 0x80000007:2.edx */ +#define FEATURESET_7d2 13 /* 0x00000007:2.edx */ +#define FEATURESET_7c1 14 /* 0x00000007:1.ecx */ +#define FEATURESET_7d1 15 /* 0x00000007:1.edx */ struct cpuid_leaf { @@ -194,7 +196,14 @@ struct cpuid_policy uint32_t _7b1; struct { DECL_BITFIELD(7b1); }; }; - uint32_t /* c */:32, /* d */:32; + union { + uint32_t _7c1; + struct { DECL_BITFIELD(7c1); }; + }; + union { + uint32_t _7d1; + struct { DECL_BITFIELD(7d1); }; + }; /* Subleaf 2. */ uint32_t /* a */:32, /* b */:32, /* c */:32; @@ -343,6 +352,8 @@ static inline void cpuid_policy_to_featureset( fs[FEATURESET_e21a] = p->extd.e21a; fs[FEATURESET_7b1] = p->feat._7b1; fs[FEATURESET_7d2] = p->feat._7d2; + fs[FEATURESET_7c1] = p->feat._7c1; + fs[FEATURESET_7d1] = p->feat._7d1; } /* Fill in a CPUID policy from a featureset bitmap. */ @@ -363,6 +374,8 @@ static inline void cpuid_featureset_to_policy( p->extd.e21a = fs[FEATURESET_e21a]; p->feat._7b1 = fs[FEATURESET_7b1]; p->feat._7d2 = fs[FEATURESET_7d2]; + p->feat._7c1 = fs[FEATURESET_7c1]; + p->feat._7d1 = fs[FEATURESET_7d1]; } static inline uint64_t cpuid_policy_xcr0_max(const struct cpuid_policy *p) -- generated by git-patchbot for /home/xen/git/xen.git#staging-4.14
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