From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49962) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bnWPw-0000Ya-Ce for qemu-devel@nongnu.org; Fri, 23 Sep 2016 15:45:54 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bnWPu-0003ng-4H for qemu-devel@nongnu.org; Fri, 23 Sep 2016 15:45:52 -0400 Received: from mx1.redhat.com ([209.132.183.28]:56344) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bnWPt-0003nA-QY for qemu-devel@nongnu.org; Fri, 23 Sep 2016 15:45:50 -0400 From: Eduardo Habkost Date: Fri, 23 Sep 2016 16:45:30 -0300 Message-Id: <1474659936-978-2-git-send-email-ehabkost@redhat.com> In-Reply-To: <1474659936-978-1-git-send-email-ehabkost@redhat.com> References: <1474659936-978-1-git-send-email-ehabkost@redhat.com> Subject: [Qemu-devel] [PATCH 1/7] target-i386: Move feature name arrays inside FeatureWordInfo List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Paolo Bonzini , Richard Henderson , Igor Mammedov It makes it easier to guarantee the arrays are the right size, and to find information when looking at the code. Signed-off-by: Eduardo Habkost --- target-i386/cpu.c | 370 +++++++++++++++++++++++++----------------------------- 1 file changed, 170 insertions(+), 200 deletions(-) diff --git a/target-i386/cpu.c b/target-i386/cpu.c index a5d3b1a..cc07fdb 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -181,185 +181,6 @@ static void x86_cpu_vendor_words2str(char *dst, uint32_t vendor1, dst[CPUID_VENDOR_SZ] = '\0'; } -/* feature flags taken from "Intel Processor Identification and the CPUID - * Instruction" and AMD's "CPUID Specification". In cases of disagreement - * between feature naming conventions, aliases may be added. - */ -static const char *feature_name[] = { - "fpu", "vme", "de", "pse", - "tsc", "msr", "pae", "mce", - "cx8", "apic", NULL, "sep", - "mtrr", "pge", "mca", "cmov", - "pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */, - NULL, "ds" /* Intel dts */, "acpi", "mmx", - "fxsr", "sse", "sse2", "ss", - "ht" /* Intel htt */, "tm", "ia64", "pbe", -}; -static const char *ext_feature_name[] = { - "pni|sse3" /* Intel,AMD sse3 */, "pclmulqdq|pclmuldq", "dtes64", "monitor", - "ds_cpl", "vmx", "smx", "est", - "tm2", "ssse3", "cid", NULL, - "fma", "cx16", "xtpr", "pdcm", - NULL, "pcid", "dca", "sse4.1|sse4_1", - "sse4.2|sse4_2", "x2apic", "movbe", "popcnt", - "tsc-deadline", "aes", "xsave", "osxsave", - "avx", "f16c", "rdrand", "hypervisor", -}; -/* Feature names that are already defined on feature_name[] but are set on - * CPUID[8000_0001].EDX on AMD CPUs don't have their names on - * ext2_feature_name[]. They are copied automatically to cpuid_ext2_features - * if and only if CPU vendor is AMD. - */ -static const char *ext2_feature_name[] = { - NULL /* fpu */, NULL /* vme */, NULL /* de */, NULL /* pse */, - NULL /* tsc */, NULL /* msr */, NULL /* pae */, NULL /* mce */, - NULL /* cx8 */ /* AMD CMPXCHG8B */, NULL /* apic */, NULL, "syscall", - NULL /* mtrr */, NULL /* pge */, NULL /* mca */, NULL /* cmov */, - NULL /* pat */, NULL /* pse36 */, NULL, NULL /* Linux mp */, - "nx|xd", NULL, "mmxext", NULL /* mmx */, - NULL /* fxsr */, "fxsr_opt|ffxsr", "pdpe1gb" /* AMD Page1GB */, "rdtscp", - NULL, "lm|i64", "3dnowext", "3dnow", -}; -static const char *ext3_feature_name[] = { - "lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */, - "cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse", - "3dnowprefetch", "osvw", "ibs", "xop", - "skinit", "wdt", NULL, "lwp", - "fma4", "tce", NULL, "nodeid_msr", - NULL, "tbm", "topoext", "perfctr_core", - "perfctr_nb", NULL, NULL, NULL, - NULL, NULL, NULL, NULL, -}; - -static const char *ext4_feature_name[] = { - NULL, NULL, "xstore", "xstore-en", - NULL, NULL, "xcrypt", "xcrypt-en", - "ace2", "ace2-en", "phe", "phe-en", - "pmm", "pmm-en", NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, -}; - -static const char *kvm_feature_name[] = { - "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", - "kvm_asyncpf", "kvm_steal_time", "kvm_pv_eoi", "kvm_pv_unhalt", - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - "kvmclock-stable-bit", NULL, NULL, NULL, - NULL, NULL, NULL, NULL, -}; - -static const char *hyperv_priv_feature_name[] = { - NULL /* hv_msr_vp_runtime_access */, NULL /* hv_msr_time_refcount_access */, - NULL /* hv_msr_synic_access */, NULL /* hv_msr_stimer_access */, - NULL /* hv_msr_apic_access */, NULL /* hv_msr_hypercall_access */, - NULL /* hv_vpindex_access */, NULL /* hv_msr_reset_access */, - NULL /* hv_msr_stats_access */, NULL /* hv_reftsc_access */, - NULL /* hv_msr_idle_access */, NULL /* hv_msr_frequency_access */, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, -}; - -static const char *hyperv_ident_feature_name[] = { - NULL /* hv_create_partitions */, NULL /* hv_access_partition_id */, - NULL /* hv_access_memory_pool */, NULL /* hv_adjust_message_buffers */, - NULL /* hv_post_messages */, NULL /* hv_signal_events */, - NULL /* hv_create_port */, NULL /* hv_connect_port */, - NULL /* hv_access_stats */, NULL, NULL, NULL /* hv_debugging */, - NULL /* hv_cpu_power_management */, NULL /* hv_configure_profiler */, - NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, -}; - -static const char *hyperv_misc_feature_name[] = { - NULL /* hv_mwait */, NULL /* hv_guest_debugging */, - NULL /* hv_perf_monitor */, NULL /* hv_cpu_dynamic_part */, - NULL /* hv_hypercall_params_xmm */, NULL /* hv_guest_idle_state */, - NULL, NULL, - NULL, NULL, NULL /* hv_guest_crash_msr */, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, -}; - -static const char *svm_feature_name[] = { - "npt", "lbrv", "svm_lock", "nrip_save", - "tsc_scale", "vmcb_clean", "flushbyasid", "decodeassists", - NULL, NULL, "pause_filter", NULL, - "pfthreshold", NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, -}; - -static const char *cpuid_7_0_ebx_feature_name[] = { - "fsgsbase", "tsc_adjust", NULL, "bmi1", - "hle", "avx2", NULL, "smep", - "bmi2", "erms", "invpcid", "rtm", - NULL, NULL, "mpx", NULL, - "avx512f", "avx512dq", "rdseed", "adx", - "smap", "avx512ifma", "pcommit", "clflushopt", - "clwb", NULL, "avx512pf", "avx512er", - "avx512cd", NULL, "avx512bw", "avx512vl", -}; - -static const char *cpuid_7_0_ecx_feature_name[] = { - NULL, "avx512vbmi", "umip", "pku", - "ospke", NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, "rdpid", NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, -}; - -static const char *cpuid_apm_edx_feature_name[] = { - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - "invtsc", NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, -}; - -static const char *cpuid_xsave_feature_name[] = { - "xsaveopt", "xsavec", "xgetbv1", "xsaves", - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, -}; - -static const char *cpuid_6_feature_name[] = { - NULL, NULL, "arat", NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, -}; - #define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE) #define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \ CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX | CPUID_APIC) @@ -425,7 +246,12 @@ static const char *cpuid_6_feature_name[] = { CPUID_XSAVE_XSAVEC, CPUID_XSAVE_XSAVES */ typedef struct FeatureWordInfo { - const char **feat_names; + /* feature flags names are taken from "Intel Processor Identification and + * the CPUID Instruction" and AMD's "CPUID Specification". + * In cases of disagreement between feature naming conventions, + * aliases may be added. + */ + const char *feat_names[32]; uint32_t cpuid_eax; /* Input EAX for CPUID */ bool cpuid_needs_ecx; /* CPUID instruction uses ECX as input */ uint32_t cpuid_ecx; /* Input ECX value for CPUID */ @@ -436,82 +262,230 @@ typedef struct FeatureWordInfo { static FeatureWordInfo feature_word_info[FEATURE_WORDS] = { [FEAT_1_EDX] = { - .feat_names = feature_name, + .feat_names = { + "fpu", "vme", "de", "pse", + "tsc", "msr", "pae", "mce", + "cx8", "apic", NULL, "sep", + "mtrr", "pge", "mca", "cmov", + "pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */, + NULL, "ds" /* Intel dts */, "acpi", "mmx", + "fxsr", "sse", "sse2", "ss", + "ht" /* Intel htt */, "tm", "ia64", "pbe", + }, .cpuid_eax = 1, .cpuid_reg = R_EDX, .tcg_features = TCG_FEATURES, }, [FEAT_1_ECX] = { - .feat_names = ext_feature_name, + .feat_names = { + "pni|sse3" /* Intel,AMD sse3 */, "pclmulqdq|pclmuldq", "dtes64", "monitor", + "ds_cpl", "vmx", "smx", "est", + "tm2", "ssse3", "cid", NULL, + "fma", "cx16", "xtpr", "pdcm", + NULL, "pcid", "dca", "sse4.1|sse4_1", + "sse4.2|sse4_2", "x2apic", "movbe", "popcnt", + "tsc-deadline", "aes", "xsave", "osxsave", + "avx", "f16c", "rdrand", "hypervisor", + }, .cpuid_eax = 1, .cpuid_reg = R_ECX, .tcg_features = TCG_EXT_FEATURES, }, + /* Feature names that are already defined on feature_name[] but + * are set on CPUID[8000_0001].EDX on AMD CPUs don't have their + * names on feat_names below. They are copied automatically + * to features[FEAT_8000_0001_EDX] if and only if CPU vendor is AMD. + */ [FEAT_8000_0001_EDX] = { - .feat_names = ext2_feature_name, + .feat_names = { + NULL /* fpu */, NULL /* vme */, NULL /* de */, NULL /* pse */, + NULL /* tsc */, NULL /* msr */, NULL /* pae */, NULL /* mce */, + NULL /* cx8 */, NULL /* apic */, NULL, "syscall", + NULL /* mtrr */, NULL /* pge */, NULL /* mca */, NULL /* cmov */, + NULL /* pat */, NULL /* pse36 */, NULL, NULL /* Linux mp */, + "nx|xd", NULL, "mmxext", NULL /* mmx */, + NULL /* fxsr */, "fxsr_opt|ffxsr", "pdpe1gb", "rdtscp", + NULL, "lm|i64", "3dnowext", "3dnow", + }, .cpuid_eax = 0x80000001, .cpuid_reg = R_EDX, .tcg_features = TCG_EXT2_FEATURES, }, [FEAT_8000_0001_ECX] = { - .feat_names = ext3_feature_name, + .feat_names = { + "lahf_lm", "cmp_legacy", "svm", "extapic", + "cr8legacy", "abm", "sse4a", "misalignsse", + "3dnowprefetch", "osvw", "ibs", "xop", + "skinit", "wdt", NULL, "lwp", + "fma4", "tce", NULL, "nodeid_msr", + NULL, "tbm", "topoext", "perfctr_core", + "perfctr_nb", NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + }, .cpuid_eax = 0x80000001, .cpuid_reg = R_ECX, .tcg_features = TCG_EXT3_FEATURES, }, [FEAT_C000_0001_EDX] = { - .feat_names = ext4_feature_name, + .feat_names = { + NULL, NULL, "xstore", "xstore-en", + NULL, NULL, "xcrypt", "xcrypt-en", + "ace2", "ace2-en", "phe", "phe-en", + "pmm", "pmm-en", NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + }, .cpuid_eax = 0xC0000001, .cpuid_reg = R_EDX, .tcg_features = TCG_EXT4_FEATURES, }, [FEAT_KVM] = { - .feat_names = kvm_feature_name, + .feat_names = { + "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", + "kvm_asyncpf", "kvm_steal_time", "kvm_pv_eoi", "kvm_pv_unhalt", + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + "kvmclock-stable-bit", NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + }, .cpuid_eax = KVM_CPUID_FEATURES, .cpuid_reg = R_EAX, .tcg_features = TCG_KVM_FEATURES, }, [FEAT_HYPERV_EAX] = { - .feat_names = hyperv_priv_feature_name, + .feat_names = { + NULL /* hv_msr_vp_runtime_access */, NULL /* hv_msr_time_refcount_access */, + NULL /* hv_msr_synic_access */, NULL /* hv_msr_stimer_access */, + NULL /* hv_msr_apic_access */, NULL /* hv_msr_hypercall_access */, + NULL /* hv_vpindex_access */, NULL /* hv_msr_reset_access */, + NULL /* hv_msr_stats_access */, NULL /* hv_reftsc_access */, + NULL /* hv_msr_idle_access */, NULL /* hv_msr_frequency_access */, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + }, .cpuid_eax = 0x40000003, .cpuid_reg = R_EAX, }, [FEAT_HYPERV_EBX] = { - .feat_names = hyperv_ident_feature_name, + .feat_names = { + NULL /* hv_create_partitions */, NULL /* hv_access_partition_id */, + NULL /* hv_access_memory_pool */, NULL /* hv_adjust_message_buffers */, + NULL /* hv_post_messages */, NULL /* hv_signal_events */, + NULL /* hv_create_port */, NULL /* hv_connect_port */, + NULL /* hv_access_stats */, NULL, NULL, NULL /* hv_debugging */, + NULL /* hv_cpu_power_management */, NULL /* hv_configure_profiler */, + NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + }, .cpuid_eax = 0x40000003, .cpuid_reg = R_EBX, }, [FEAT_HYPERV_EDX] = { - .feat_names = hyperv_misc_feature_name, + .feat_names = { + NULL /* hv_mwait */, NULL /* hv_guest_debugging */, + NULL /* hv_perf_monitor */, NULL /* hv_cpu_dynamic_part */, + NULL /* hv_hypercall_params_xmm */, NULL /* hv_guest_idle_state */, + NULL, NULL, + NULL, NULL, NULL /* hv_guest_crash_msr */, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + }, .cpuid_eax = 0x40000003, .cpuid_reg = R_EDX, }, [FEAT_SVM] = { - .feat_names = svm_feature_name, + .feat_names = { + "npt", "lbrv", "svm_lock", "nrip_save", + "tsc_scale", "vmcb_clean", "flushbyasid", "decodeassists", + NULL, NULL, "pause_filter", NULL, + "pfthreshold", NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + }, .cpuid_eax = 0x8000000A, .cpuid_reg = R_EDX, .tcg_features = TCG_SVM_FEATURES, }, [FEAT_7_0_EBX] = { - .feat_names = cpuid_7_0_ebx_feature_name, + .feat_names = { + "fsgsbase", "tsc_adjust", NULL, "bmi1", + "hle", "avx2", NULL, "smep", + "bmi2", "erms", "invpcid", "rtm", + NULL, NULL, "mpx", NULL, + "avx512f", "avx512dq", "rdseed", "adx", + "smap", "avx512ifma", "pcommit", "clflushopt", + "clwb", NULL, "avx512pf", "avx512er", + "avx512cd", NULL, "avx512bw", "avx512vl", + }, .cpuid_eax = 7, .cpuid_needs_ecx = true, .cpuid_ecx = 0, .cpuid_reg = R_EBX, .tcg_features = TCG_7_0_EBX_FEATURES, }, [FEAT_7_0_ECX] = { - .feat_names = cpuid_7_0_ecx_feature_name, + .feat_names = { + NULL, "avx512vbmi", "umip", "pku", + "ospke", NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, "rdpid", NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + }, .cpuid_eax = 7, .cpuid_needs_ecx = true, .cpuid_ecx = 0, .cpuid_reg = R_ECX, .tcg_features = TCG_7_0_ECX_FEATURES, }, [FEAT_8000_0007_EDX] = { - .feat_names = cpuid_apm_edx_feature_name, + .feat_names = { + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + "invtsc", NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + }, .cpuid_eax = 0x80000007, .cpuid_reg = R_EDX, .tcg_features = TCG_APM_FEATURES, .unmigratable_flags = CPUID_APM_INVTSC, }, [FEAT_XSAVE] = { - .feat_names = cpuid_xsave_feature_name, + .feat_names = { + "xsaveopt", "xsavec", "xgetbv1", "xsaves", + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + }, .cpuid_eax = 0xd, .cpuid_needs_ecx = true, .cpuid_ecx = 1, .cpuid_reg = R_EAX, .tcg_features = TCG_XSAVE_FEATURES, }, [FEAT_6_EAX] = { - .feat_names = cpuid_6_feature_name, + .feat_names = { + NULL, NULL, "arat", NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + }, .cpuid_eax = 6, .cpuid_reg = R_EAX, .tcg_features = TCG_6_EAX_FEATURES, }, @@ -711,8 +685,7 @@ static void add_flagname_to_bitmaps(const char *flagname, FeatureWord w; for (w = 0; w < FEATURE_WORDS; w++) { FeatureWordInfo *wi = &feature_word_info[w]; - if (wi->feat_names && - lookup_feature(&words[w], flagname, NULL, wi->feat_names)) { + if (lookup_feature(&words[w], flagname, NULL, wi->feat_names)) { break; } } @@ -3324,9 +3297,6 @@ static void x86_cpu_register_feature_bit_props(X86CPU *cpu, char **names; FeatureWordInfo *fi = &feature_word_info[w]; - if (!fi->feat_names) { - return; - } if (!fi->feat_names[bitnr]) { return; } -- 2.7.4