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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 10/27] x86/cpuid: Introduce named feature bitmaps
Use anonymous unions to access the feature leaves as complete words, and by
named individual feature.
A feature name is introduced for every architectural X86_FEATURE_*, other than
the dynamically calculated values such as APIC, OSXSAVE and OSPKE.
No functional change.
Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Jan Beulich <JBeulich@xxxxxxxx>
---
xen/include/asm-x86/cpuid.h | 103 +++++++++++++++++++++++++++++++++++++++++---
1 file changed, 97 insertions(+), 6 deletions(-)
diff --git a/xen/include/asm-x86/cpuid.h b/xen/include/asm-x86/cpuid.h
index e20b0d2..0371e6e 100644
--- a/xen/include/asm-x86/cpuid.h
+++ b/xen/include/asm-x86/cpuid.h
@@ -103,7 +103,25 @@ struct cpuid_policy
/* Leaf 0x1 - family/model/stepping and features. */
struct {
- uint32_t :32, :32, _1c, _1d;
+ uint32_t :32, :32;
+ union {
+ uint32_t _1c;
+ struct {
+ bool sse3:1, pclmulqdq:1, dtes64:1, monitor:1,
dscpl:1, vmx:1, smx:1, eist:1,
+ tm2:1, ssse3:1, /* cid */:1, /* sdbg */:1, fma:1,
cx16:1, xtpr:1, pcdm:1,
+ :1, pcid:1, dca:1, sse4_1:1, sse4_2:1, x2apic:1,
movebe:1, popcnt:1,
+ tsc_deadline:1, aesni:1, xsave:1, /* osxsave
*/:1, avx:1, f16c:1, rdrand:1, hv:1;
+ };
+ };
+ union {
+ uint32_t _1d;
+ struct {
+ bool fpu:1, vme:1, de:1, pse:1, tsc:1, msr:1, pae:1,
mce:1,
+ cx8:1, /* apic */:1, :1, sep:1, mtrr:1, pge:1,
mca:1, cmov:1,
+ pat:1, pse36:1, /* psn */:1, clflush:1, :1, ds:1,
acpi:1, mmx:1,
+ fxsr:1, sse:1, sse2:1, /* ss */:1, htt:1, tm1:1,
/* IA-64 */:1, pbe:1;
+ };
+ };
};
};
} basic;
@@ -113,7 +131,34 @@ struct cpuid_policy
struct cpuid_leaf raw[CPUID_GUEST_NR_FEAT];
struct {
struct {
- uint32_t max_subleaf, _7b0, _7c0, _7d0;
+ uint32_t max_subleaf;
+ union {
+ uint32_t _7b0;
+ struct {
+ bool fsgsbase:1, tsc_adjust:1, sgx:1, bmi1:1, hle:1,
avx2:1, fdp_excp_only:1, smep:1,
+ bmi2:1, erms:1, invpcid:1, rtm:1, pqm:1,
no_fpu_sel:1, mpx:1, pqe:1,
+ avx512f:1, avx512dq:1, rdseed:1, adx:1, smap:1,
avx512ifma:1, /* pcommit */:1, clflushopt:1,
+ clwb:1, /* pt */:1, avx512pf:1, avx512er:1,
avx512cd:1, sha:1, avx512bw:1, avx512vl:1;
+ };
+ };
+ union {
+ uint32_t _7c0;
+ struct {
+ bool prefetchwt1:1, avx512vbmi:1, :1, pku: 1, :1, :1,
:1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1;
+ };
+ };
+ union {
+ uint32_t _7d0;
+ struct {
+ bool :1, avx512_4vnniw:1, avx512_4fmaps:1, :1, :1, :1,
:1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1;
+ };
+ };
};
};
} feat;
@@ -126,7 +171,16 @@ struct cpuid_policy
uint32_t xcr0_low, :32, :32, xcr0_high;
};
struct {
- uint32_t Da1, :32, xss_low, xss_high;
+ union {
+ uint32_t Da1;
+ struct {
+ bool xsaveopt: 1, xsavec: 1, xgetbv1: 1, xsaves: 1,
:1, :1, :1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1;
+ };
+ };
+ uint32_t :32, xss_low, xss_high;
};
};
} xstate;
@@ -142,7 +196,25 @@ struct cpuid_policy
/* Leaf 0x80000001 - family/model/stepping and features. */
struct {
- uint32_t :32, :32, e1c, e1d;
+ uint32_t :32, :32;
+ union {
+ uint32_t e1c;
+ struct {
+ bool lahf_lm:1, cmp_legacy:1, svm:1, extapic:1,
cr8_legacy:1, abm:1, sse4a:1, misalignsse:1,
+ _3dnowprefetch:1, osvw: 1, ibs:1, xop:1,
skinit:1, wdt:1, :1, lwp:1,
+ fma4:1, :1, :1, nodeid_msr:1, :1, tbm:1,
topoext:1, :1,
+ :1, :1, dbext:1, :1, :1, monitorx:1, :1, :1;
+ };
+ };
+ union {
+ uint32_t e1d;
+ struct {
+ bool :1, :1, :1, :1, :1, :1, :1, :1,
+ :1, :1, :1, syscall:1, :1, :1, :1, :1,
+ :1, :1, :1, :1, nx:1, :1, mmxext:1, :1,
+ :1, ffxsr:1, page1gb:1, rdtscp:1, :1, lm:1,
_3dnowext:1, _3dnow:1;
+ };
+ };
};
uint64_t :64, :64; /* Brand string. */
@@ -153,12 +225,31 @@ struct cpuid_policy
/* Leaf 0x80000007 - Advanced Power Management. */
struct {
- uint32_t :32, :32, :32, e7d;
+ uint32_t :32, :32, :32;
+ union {
+ uint32_t e7d;
+ struct {
+ bool :1, :1, :1, :1, :1, :1, :1, :1,
+ itsc:1, :1, efro:1, :1, :1, :1, :1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1;
+ };
+ };
};
/* Leaf 0x80000008 - Misc addr/feature info. */
struct {
- uint32_t :32, e8b, :32, :32;
+ uint32_t :32;
+ union {
+ uint32_t e8b;
+ struct {
+ bool clzero:1, :1, :1, :1, :1, :1, :1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1,
+ :1, :1, :1, :1, :1, :1, :1, :1;
+ };
+ };
+ uint32_t :32, :32;
};
};
} extd;
--
2.1.4
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