mirror of
https://github.com/RGBCube/serenity
synced 2025-07-25 20:57:35 +00:00
Kernel: Support all Intel-defined CPUID feature flags for EAX=1
We're now able to detect all the regular CPUID feature flags from ECX/EDX for EAX=1 :^) None of the new ones are being used for anything yet, but they will show up in /proc/cpuinfo and subsequently lscpu and SystemMonitor. Note that I replaced the periods from the SSE 4.1 and 4.2 instructions with underscores, which matches the internal enum names, Linux's /proc/cpuinfo and the general pattern of replacing special characters with underscores to limit feature names to [a-z0-9_]. The enum member stringification has been moved to a new function for better re-usability and to avoid cluttering up Processor.cpp.
This commit is contained in:
Linus Groh
Andreas Kling
parent
bc7ec02a82
commit
6ca03b915e
5 changed files with 337 additions and 91 deletions
|
|
@ -89,31 +89,109 @@ UNMAP_AFTER_INIT void Processor::cpu_detect()
|
|||
|
||||
if (processor_info.ecx() & (1 << 0))
|
||||
m_features |= CPUFeature::SSE3;
|
||||
if (processor_info.ecx() & (1 << 1))
|
||||
m_features |= CPUFeature::PCLMULQDQ;
|
||||
if (processor_info.ecx() & (1 << 2))
|
||||
m_features |= CPUFeature::DTES64;
|
||||
if (processor_info.ecx() & (1 << 3))
|
||||
m_features |= CPUFeature::MONITOR;
|
||||
if (processor_info.ecx() & (1 << 4))
|
||||
m_features |= CPUFeature::DS_CPL;
|
||||
if (processor_info.ecx() & (1 << 5))
|
||||
m_features |= CPUFeature::VMX;
|
||||
if (processor_info.ecx() & (1 << 6))
|
||||
m_features |= CPUFeature::SMX;
|
||||
if (processor_info.ecx() & (1 << 7))
|
||||
m_features |= CPUFeature::EST;
|
||||
if (processor_info.ecx() & (1 << 8))
|
||||
m_features |= CPUFeature::TM2;
|
||||
if (processor_info.ecx() & (1 << 9))
|
||||
m_features |= CPUFeature::SSSE3;
|
||||
if (processor_info.ecx() & (1 << 10))
|
||||
m_features |= CPUFeature::CNXT_ID;
|
||||
if (processor_info.ecx() & (1 << 11))
|
||||
m_features |= CPUFeature::SDBG;
|
||||
if (processor_info.ecx() & (1 << 12))
|
||||
m_features |= CPUFeature::FMA;
|
||||
if (processor_info.ecx() & (1 << 13))
|
||||
m_features |= CPUFeature::CX16;
|
||||
if (processor_info.ecx() & (1 << 14))
|
||||
m_features |= CPUFeature::XTPR;
|
||||
if (processor_info.ecx() & (1 << 15))
|
||||
m_features |= CPUFeature::PDCM;
|
||||
if (processor_info.ecx() & (1 << 17))
|
||||
m_features |= CPUFeature::PCID;
|
||||
if (processor_info.ecx() & (1 << 18))
|
||||
m_features |= CPUFeature::DCA;
|
||||
if (processor_info.ecx() & (1 << 19))
|
||||
m_features |= CPUFeature::SSE4_1;
|
||||
if (processor_info.ecx() & (1 << 20))
|
||||
m_features |= CPUFeature::SSE4_2;
|
||||
if (processor_info.ecx() & (1 << 21))
|
||||
m_features |= CPUFeature::X2APIC;
|
||||
if (processor_info.ecx() & (1 << 22))
|
||||
m_features |= CPUFeature::MOVBE;
|
||||
if (processor_info.ecx() & (1 << 23))
|
||||
m_features |= CPUFeature::POPCNT;
|
||||
if (processor_info.ecx() & (1 << 24))
|
||||
m_features |= CPUFeature::TSC_DEADLINE;
|
||||
if (processor_info.ecx() & (1 << 25))
|
||||
m_features |= CPUFeature::AES;
|
||||
if (processor_info.ecx() & (1 << 26))
|
||||
m_features |= CPUFeature::XSAVE;
|
||||
if (processor_info.ecx() & (1 << 27))
|
||||
m_features |= CPUFeature::OSXSAVE;
|
||||
if (processor_info.ecx() & (1 << 28))
|
||||
m_features |= CPUFeature::AVX;
|
||||
if (processor_info.ecx() & (1 << 29))
|
||||
m_features |= CPUFeature::F16C;
|
||||
if (processor_info.ecx() & (1 << 30))
|
||||
m_features |= CPUFeature::RDRAND;
|
||||
if (processor_info.ecx() & (1 << 31))
|
||||
m_features |= CPUFeature::HYPERVISOR;
|
||||
|
||||
if (processor_info.edx() & (1 << 0))
|
||||
m_features |= CPUFeature::FPU;
|
||||
if (processor_info.edx() & (1 << 1))
|
||||
m_features |= CPUFeature::VME;
|
||||
if (processor_info.edx() & (1 << 2))
|
||||
m_features |= CPUFeature::DE;
|
||||
if (processor_info.edx() & (1 << 3))
|
||||
m_features |= CPUFeature::PSE;
|
||||
if (processor_info.edx() & (1 << 4))
|
||||
m_features |= CPUFeature::TSC;
|
||||
if (processor_info.edx() & (1 << 5))
|
||||
m_features |= CPUFeature::MSR;
|
||||
if (processor_info.edx() & (1 << 6))
|
||||
m_features |= CPUFeature::PAE;
|
||||
if (processor_info.edx() & (1 << 13))
|
||||
m_features |= CPUFeature::PGE;
|
||||
if (processor_info.edx() & (1 << 7))
|
||||
m_features |= CPUFeature::MCE;
|
||||
if (processor_info.edx() & (1 << 8))
|
||||
m_features |= CPUFeature::CX8;
|
||||
if (processor_info.edx() & (1 << 9))
|
||||
m_features |= CPUFeature::APIC;
|
||||
if (processor_info.edx() & (1 << 11))
|
||||
handle_edx_bit_11_feature();
|
||||
if (processor_info.edx() & (1 << 12))
|
||||
m_features |= CPUFeature::MTRR;
|
||||
if (processor_info.edx() & (1 << 13))
|
||||
m_features |= CPUFeature::PGE;
|
||||
if (processor_info.edx() & (1 << 14))
|
||||
m_features |= CPUFeature::MCA;
|
||||
if (processor_info.edx() & (1 << 15))
|
||||
m_features |= CPUFeature::CMOV;
|
||||
if (processor_info.edx() & (1 << 16))
|
||||
m_features |= CPUFeature::PAT;
|
||||
if (processor_info.edx() & (1 << 17))
|
||||
m_features |= CPUFeature::PSE36;
|
||||
if (processor_info.edx() & (1 << 18))
|
||||
m_features |= CPUFeature::PSN;
|
||||
if (processor_info.edx() & (1 << 19))
|
||||
m_features |= CPUFeature::CLFLUSH;
|
||||
if (processor_info.edx() & (1 << 21))
|
||||
m_features |= CPUFeature::DS;
|
||||
if (processor_info.edx() & (1 << 22))
|
||||
m_features |= CPUFeature::ACPI;
|
||||
if (processor_info.edx() & (1 << 23))
|
||||
m_features |= CPUFeature::MMX;
|
||||
if (processor_info.edx() & (1 << 24))
|
||||
|
|
@ -122,6 +200,16 @@ UNMAP_AFTER_INIT void Processor::cpu_detect()
|
|||
m_features |= CPUFeature::SSE;
|
||||
if (processor_info.edx() & (1 << 26))
|
||||
m_features |= CPUFeature::SSE2;
|
||||
if (processor_info.edx() & (1 << 27))
|
||||
m_features |= CPUFeature::SS;
|
||||
if (processor_info.edx() & (1 << 28))
|
||||
m_features |= CPUFeature::HTT;
|
||||
if (processor_info.edx() & (1 << 29))
|
||||
m_features |= CPUFeature::TM;
|
||||
if (processor_info.edx() & (1 << 30))
|
||||
m_features |= CPUFeature::IA64;
|
||||
if (processor_info.edx() & (1 << 31))
|
||||
m_features |= CPUFeature::PBE;
|
||||
|
||||
CPUID extended_features(0x7);
|
||||
if (extended_features.ebx() & (1 << 7))
|
||||
|
|
@ -290,63 +378,6 @@ UNMAP_AFTER_INIT void Processor::cpu_setup()
|
|||
NonnullOwnPtr<KString> Processor::features_string() const
|
||||
{
|
||||
StringBuilder builder;
|
||||
auto feature_to_str = [](CPUFeature::Type const& feature) -> StringView {
|
||||
if (feature == CPUFeature::NX)
|
||||
return "nx"sv;
|
||||
if (feature == CPUFeature::PAE)
|
||||
return "pae"sv;
|
||||
if (feature == CPUFeature::PGE)
|
||||
return "pge"sv;
|
||||
if (feature == CPUFeature::RDRAND)
|
||||
return "rdrand"sv;
|
||||
if (feature == CPUFeature::RDSEED)
|
||||
return "rdseed"sv;
|
||||
if (feature == CPUFeature::SMAP)
|
||||
return "smap"sv;
|
||||
if (feature == CPUFeature::SMEP)
|
||||
return "smep"sv;
|
||||
if (feature == CPUFeature::SSE)
|
||||
return "sse"sv;
|
||||
if (feature == CPUFeature::TSC)
|
||||
return "tsc"sv;
|
||||
if (feature == CPUFeature::RDTSCP)
|
||||
return "rdtscp"sv;
|
||||
if (feature == CPUFeature::CONSTANT_TSC)
|
||||
return "constant_tsc"sv;
|
||||
if (feature == CPUFeature::NONSTOP_TSC)
|
||||
return "nonstop_tsc"sv;
|
||||
if (feature == CPUFeature::UMIP)
|
||||
return "umip"sv;
|
||||
if (feature == CPUFeature::SEP)
|
||||
return "sep"sv;
|
||||
if (feature == CPUFeature::SYSCALL)
|
||||
return "syscall"sv;
|
||||
if (feature == CPUFeature::MMX)
|
||||
return "mmx"sv;
|
||||
if (feature == CPUFeature::FXSR)
|
||||
return "fxsr"sv;
|
||||
if (feature == CPUFeature::SSE2)
|
||||
return "sse2"sv;
|
||||
if (feature == CPUFeature::SSE3)
|
||||
return "sse3"sv;
|
||||
if (feature == CPUFeature::SSSE3)
|
||||
return "ssse3"sv;
|
||||
if (feature == CPUFeature::SSE4_1)
|
||||
return "sse4.1"sv;
|
||||
if (feature == CPUFeature::SSE4_2)
|
||||
return "sse4.2"sv;
|
||||
if (feature == CPUFeature::XSAVE)
|
||||
return "xsave"sv;
|
||||
if (feature == CPUFeature::AVX)
|
||||
return "avx"sv;
|
||||
if (feature == CPUFeature::LM)
|
||||
return "lm"sv;
|
||||
if (feature == CPUFeature::HYPERVISOR)
|
||||
return "hypervisor"sv;
|
||||
if (feature == CPUFeature::PAT)
|
||||
return "pat"sv;
|
||||
VERIFY_NOT_REACHED();
|
||||
};
|
||||
bool first = true;
|
||||
for (auto feature = CPUFeature::Type(1u); feature != CPUFeature::__End; feature <<= 1u) {
|
||||
if (has_feature(feature)) {
|
||||
|
|
@ -354,8 +385,7 @@ NonnullOwnPtr<KString> Processor::features_string() const
|
|||
first = false;
|
||||
else
|
||||
MUST(builder.try_append(' '));
|
||||
auto str = feature_to_str(feature);
|
||||
MUST(builder.try_append(str));
|
||||
MUST(builder.try_append(cpu_feature_to_string_view(feature)));
|
||||
}
|
||||
}
|
||||
return KString::must_create(builder.string_view());
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue