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Kernel: Rename OSPKU CPUID feature flag to OSPKE

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Unlike "XSAVE enabled by OS" being indicated by the OSXSAVE flag, in
this case it's "PKU enabled by OS" being indicated by the OSPKE flag.
This commit is contained in:
Linus Groh 2022-04-08 18:18:51 +01:00
parent 280e99073b
commit 87aabb5ef7
Notes: sideshowbarker 2024-07-18 02:13:10 +09:00 
Author: https://github.com/linusg
Commit: https://github.com/SerenityOS/serenity/commit/87aabb5ef7
Pull-request: https://github.com/SerenityOS/serenity/pull/13574
Reviewed-by: https://github.com/IdanHo ✅
3 changed files with 4 additions and 4 deletions
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2
Kernel/Arch/x86/CPUID.h
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@ -142,7 +142,7 @@ AK_MAKE_ARBITRARY_SIZED_ENUM(CPUFeature, u256,
AVX512_VBMI = CPUFeature(1u) << 97u, // AVX-512 Vector Bit Manipulation Instructions
UMIP = CPUFeature(1u) << 98u, // UMIP
PKU = CPUFeature(1u) << 99u, // Memory Protection Keys for User-mode pages
OSPKU = CPUFeature(1u) << 100u, // PKU enabled by OS
OSPKE = CPUFeature(1u) << 100u, // PKU enabled by OS
WAITPKG = CPUFeature(1u) << 101u, // Timed pause and user-level monitor/wait
AVX512_VBMI2 = CPUFeature(1u) << 102u, // AVX-512 Vector Bit Manipulation Instructions 2
CET_SS = CPUFeature(1u) << 103u, // Control Flow Enforcement (CET) Shadow Stack

4
Kernel/Arch/x86/common/CPUID.cpp
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@ -206,8 +206,8 @@ StringView cpu_feature_to_string_view(CPUFeature::Type const& feature)
return "umip"sv;
if (feature == CPUFeature::PKU)
return "pku"sv;
if (feature == CPUFeature::OSPKU)
return "ospku"sv;
if (feature == CPUFeature::OSPKE)
return "ospke"sv;
if (feature == CPUFeature::WAITPKG)
return "waitpkg"sv;
if (feature == CPUFeature::AVX512_VBMI2)

2
Kernel/Arch/x86/common/Processor.cpp
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@ -287,7 +287,7 @@ UNMAP_AFTER_INIT void Processor::cpu_detect()
if (extended_features.ecx() & (1 << 3))
m_features |= CPUFeature::PKU;
if (extended_features.ecx() & (1 << 4))
m_features |= CPUFeature::OSPKU;
m_features |= CPUFeature::OSPKE;
if (extended_features.ecx() & (1 << 5))
m_features |= CPUFeature::WAITPKG;
if (extended_features.ecx() & (1 << 6))