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Kernel: Support all AMD-defined CPUID feature flags for EAX=80000001h
We're now able to detect all the AMD-defined CPUID feature flags from ECX/EDX for EAX=80000001h :^)
This commit is contained in:
Linus Groh
Andreas Kling
parent
96e6420d8d
commit
1e82c2708d
Notes:
sideshowbarker
2024-07-17 18:46:30 +09:00
Author: https://github.com/linusg Commit: https://github.com/SerenityOS/serenity/commit/1e82c2708d Pull-request: https://github.com/SerenityOS/serenity/pull/13290 Reviewed-by: https://github.com/bgianfo ✅
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@ -195,14 +195,46 @@ AK_MAKE_ARBITRARY_SIZED_ENUM(CPUFeature, u256,
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IA32_ARCH_CAPABILITIES = CPUFeature(1u) << 152u, // IA32_ARCH_CAPABILITIES MSR
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IA32_CORE_CAPABILITIES = CPUFeature(1u) << 153u, // IA32_CORE_CAPABILITIES MSR
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SSBD = CPUFeature(1u) << 154u, // Speculative Store Bypass Disable
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/* EAX=80000001h, ECX */ //
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LAHF_LM = CPUFeature(1u) << 155u, // LAHF/SAHF in long mode
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CMP_LEGACY = CPUFeature(1u) << 156u, // Hyperthreading not valid
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SVM = CPUFeature(1u) << 157u, // Secure Virtual Machine
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EXTAPIC = CPUFeature(1u) << 158u, // Extended APIC Space
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CR8_LEGACY = CPUFeature(1u) << 159u, // CR8 in 32-bit mode
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ABM = CPUFeature(1u) << 160u, // Advanced Bit Manipulation
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SSE4A = CPUFeature(1u) << 161u, // SSE4a
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MISALIGNSSE = CPUFeature(1u) << 162u, // Misaligned SSE Mode
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_3DNOWPREFETCH = CPUFeature(1u) << 163u, // PREFETCH and PREFETCHW Instructions
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OSVW = CPUFeature(1u) << 164u, // OS Visible Workaround
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IBS = CPUFeature(1u) << 165u, // Instruction Based Sampling
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XOP = CPUFeature(1u) << 166u, // XOP instruction set
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SKINIT = CPUFeature(1u) << 167u, // SKINIT/STGI Instructions
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WDT = CPUFeature(1u) << 168u, // Watchdog timer
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LWP = CPUFeature(1u) << 169u, // Light Weight Profiling
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FMA4 = CPUFeature(1u) << 170u, // FMA4 instruction set
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TCE = CPUFeature(1u) << 171u, // Translation Cache Extension
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NODEID_MSR = CPUFeature(1u) << 172u, // NodeID MSR
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TBM = CPUFeature(1u) << 173u, // Trailing Bit Manipulation
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TOPOEXT = CPUFeature(1u) << 174u, // Topology Extensions
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PERFCTR_CORE = CPUFeature(1u) << 175u, // Core Performance Counter Extensions
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PERFCTR_NB = CPUFeature(1u) << 176u, // NB Performance Counter Extensions
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DBX = CPUFeature(1u) << 177u, // Data Breakpoint Extensions
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PERFTSC = CPUFeature(1u) << 178u, // Performance TSC
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PCX_L2I = CPUFeature(1u) << 179u, // L2I Performance Counter Extensions
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/* EAX=80000001h, EDX */ //
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SYSCALL = CPUFeature(1u) << 155u, // SYSCALL/SYSRET Instructions
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NX = CPUFeature(1u) << 156u, // NX bit
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RDTSCP = CPUFeature(1u) << 157u, // RDTSCP Instruction
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LM = CPUFeature(1u) << 158u, // Long Mode
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SYSCALL = CPUFeature(1u) << 180u, // SYSCALL/SYSRET Instructions
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MP = CPUFeature(1u) << 181u, // Multiprocessor Capable
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NX = CPUFeature(1u) << 182u, // NX bit
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MMXEXT = CPUFeature(1u) << 183u, // Extended MMX
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FXSR_OPT = CPUFeature(1u) << 184u, // FXSAVE/FXRSTOR Optimizations
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PDPE1GB = CPUFeature(1u) << 185u, // Gigabyte Pages
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RDTSCP = CPUFeature(1u) << 186u, // RDTSCP Instruction
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LM = CPUFeature(1u) << 187u, // Long Mode
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_3DNOWEXT = CPUFeature(1u) << 188u, // Extended 3DNow!
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_3DNOW = CPUFeature(1u) << 189u, // 3DNow!
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/* EAX=80000007h, EDX */ //
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CONSTANT_TSC = CPUFeature(1u) << 159u, // Invariant TSC
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NONSTOP_TSC = CPUFeature(1u) << 160u, // Invariant TSC
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CONSTANT_TSC = CPUFeature(1u) << 190u, // Invariant TSC
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NONSTOP_TSC = CPUFeature(1u) << 191u, // Invariant TSC
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__End = CPUFeature(1u) << 255u);
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StringView cpu_feature_to_string_view(CPUFeature::Type const&);
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@ -295,14 +295,77 @@ StringView cpu_feature_to_string_view(CPUFeature::Type const& feature)
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return "ia32_code_capabilities"sv;
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if (feature == CPUFeature::SSBD)
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return "ssbd"sv;
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if (feature == CPUFeature::LAHF_LM)
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return "lahf_lm"sv;
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if (feature == CPUFeature::CMP_LEGACY)
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return "cmp_legacy"sv;
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if (feature == CPUFeature::SVM)
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return "svm"sv;
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if (feature == CPUFeature::EXTAPIC)
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return "extapic"sv;
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if (feature == CPUFeature::CR8_LEGACY)
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return "cr8_legacy"sv;
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if (feature == CPUFeature::ABM)
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return "abm"sv;
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if (feature == CPUFeature::SSE4A)
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return "sse4a"sv;
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if (feature == CPUFeature::MISALIGNSSE)
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return "misalignsse"sv;
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if (feature == CPUFeature::_3DNOWPREFETCH)
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return "3dnowprefetch"sv;
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if (feature == CPUFeature::OSVW)
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return "osvw"sv;
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if (feature == CPUFeature::IBS)
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return "ibs"sv;
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if (feature == CPUFeature::XOP)
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return "xop"sv;
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if (feature == CPUFeature::SKINIT)
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return "skinit"sv;
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if (feature == CPUFeature::WDT)
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return "wdt"sv;
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if (feature == CPUFeature::LWP)
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return "lwp"sv;
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if (feature == CPUFeature::FMA4)
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return "fma4"sv;
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if (feature == CPUFeature::TCE)
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return "tce"sv;
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if (feature == CPUFeature::NODEID_MSR)
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return "nodeid_msr"sv;
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if (feature == CPUFeature::TBM)
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return "tbm"sv;
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if (feature == CPUFeature::TOPOEXT)
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return "topoext"sv;
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if (feature == CPUFeature::PERFCTR_CORE)
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return "perfctr_core"sv;
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if (feature == CPUFeature::PERFCTR_NB)
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return "perfctr_nb"sv;
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if (feature == CPUFeature::DBX)
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return "dbx"sv;
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if (feature == CPUFeature::PERFTSC)
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return "perftsc"sv;
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// NOTE: This is called perfctr_l2 on Linux, but PCX_L2I in the AMD manual & other references.
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if (feature == CPUFeature::PCX_L2I)
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return "pcx_l2i"sv;
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if (feature == CPUFeature::SYSCALL)
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return "syscall"sv;
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if (feature == CPUFeature::MP)
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return "mp"sv;
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if (feature == CPUFeature::NX)
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return "nx"sv;
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if (feature == CPUFeature::MMXEXT)
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return "mmxext"sv;
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if (feature == CPUFeature::FXSR_OPT)
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return "fxsr_opt"sv;
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if (feature == CPUFeature::PDPE1GB)
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return "pdpe1gb"sv;
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if (feature == CPUFeature::RDTSCP)
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return "rdtscp"sv;
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if (feature == CPUFeature::LM)
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return "lm"sv;
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if (feature == CPUFeature::_3DNOWEXT)
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return "3dnowext"sv;
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if (feature == CPUFeature::_3DNOW)
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return "3dnow"sv;
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if (feature == CPUFeature::CONSTANT_TSC)
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return "constant_tsc"sv;
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if (feature == CPUFeature::NONSTOP_TSC)
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@ -380,14 +380,80 @@ UNMAP_AFTER_INIT void Processor::cpu_detect()
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if (max_extended_leaf >= 0x80000001) {
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CPUID extended_processor_info(0x80000001);
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if (extended_processor_info.ecx() & (1 << 0))
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m_features |= CPUFeature::LAHF_LM;
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if (extended_processor_info.ecx() & (1 << 1))
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m_features |= CPUFeature::CMP_LEGACY;
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if (extended_processor_info.ecx() & (1 << 2))
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m_features |= CPUFeature::SVM;
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if (extended_processor_info.ecx() & (1 << 3))
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m_features |= CPUFeature::EXTAPIC;
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if (extended_processor_info.ecx() & (1 << 4))
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m_features |= CPUFeature::CR8_LEGACY;
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if (extended_processor_info.ecx() & (1 << 5))
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m_features |= CPUFeature::ABM;
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if (extended_processor_info.ecx() & (1 << 6))
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m_features |= CPUFeature::SSE4A;
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if (extended_processor_info.ecx() & (1 << 7))
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m_features |= CPUFeature::MISALIGNSSE;
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if (extended_processor_info.ecx() & (1 << 8))
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m_features |= CPUFeature::_3DNOWPREFETCH;
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if (extended_processor_info.ecx() & (1 << 9))
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m_features |= CPUFeature::OSVW;
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if (extended_processor_info.ecx() & (1 << 10))
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m_features |= CPUFeature::IBS;
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if (extended_processor_info.ecx() & (1 << 11))
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m_features |= CPUFeature::XOP;
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if (extended_processor_info.ecx() & (1 << 12))
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m_features |= CPUFeature::SKINIT;
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if (extended_processor_info.ecx() & (1 << 13))
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m_features |= CPUFeature::WDT;
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if (extended_processor_info.ecx() & (1 << 15))
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m_features |= CPUFeature::LWP;
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if (extended_processor_info.ecx() & (1 << 16))
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m_features |= CPUFeature::FMA4;
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if (extended_processor_info.ecx() & (1 << 17))
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m_features |= CPUFeature::TCE;
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if (extended_processor_info.ecx() & (1 << 19))
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m_features |= CPUFeature::NODEID_MSR;
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if (extended_processor_info.ecx() & (1 << 21))
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m_features |= CPUFeature::TBM;
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if (extended_processor_info.ecx() & (1 << 22))
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m_features |= CPUFeature::TOPOEXT;
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if (extended_processor_info.ecx() & (1 << 23))
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m_features |= CPUFeature::PERFCTR_CORE;
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if (extended_processor_info.ecx() & (1 << 24))
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m_features |= CPUFeature::PERFCTR_NB;
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if (extended_processor_info.ecx() & (1 << 26))
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m_features |= CPUFeature::DBX;
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if (extended_processor_info.ecx() & (1 << 27))
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m_features |= CPUFeature::PERFTSC;
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if (extended_processor_info.ecx() & (1 << 28))
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m_features |= CPUFeature::PCX_L2I;
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if (extended_processor_info.edx() & (1 << 11))
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m_features |= CPUFeature::SYSCALL; // Only available in 64 bit mode
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if (extended_processor_info.edx() & (1 << 19))
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m_features |= CPUFeature::MP;
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if (extended_processor_info.edx() & (1 << 20))
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m_features |= CPUFeature::NX;
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if (extended_processor_info.edx() & (1 << 22))
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m_features |= CPUFeature::MMXEXT;
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if (extended_processor_info.edx() & (1 << 23))
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m_features |= CPUFeature::RDTSCP;
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if (extended_processor_info.edx() & (1 << 25))
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m_features |= CPUFeature::FXSR_OPT;
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if (extended_processor_info.edx() & (1 << 26))
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m_features |= CPUFeature::PDPE1GB;
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if (extended_processor_info.edx() & (1 << 27))
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m_features |= CPUFeature::RDTSCP;
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if (extended_processor_info.edx() & (1 << 29))
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m_features |= CPUFeature::LM;
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if (extended_processor_info.edx() & (1 << 30))
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m_features |= CPUFeature::_3DNOWEXT;
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if (extended_processor_info.edx() & (1 << 31))
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m_features |= CPUFeature::_3DNOW;
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}
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if (max_extended_leaf >= 0x80000007) {
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