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Update AArch64 features to Linux 5.17. (#237)

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Tamas Zsoldos 2022-04-27 10:26:29 +02:00 committed by GitHub
parent 7fe96b1d3d
commit b04a9daf71
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4 changed files with 16 additions and 1 deletions
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6
include/cpuinfo_aarch64.h
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@ -72,6 +72,9 @@ typedef struct {
int rng : 1; // True random number generator support.
int bti : 1; // Branch target identification.
int mte : 1; // Memory tagging extension.
int ecv : 1; // Enhanced counter virtualization.
int afp : 1; // Alternate floating-point behaviour.
int rpres : 1; // 12-bit reciprocal (square root) estimate precision.
// Make sure to update Aarch64FeaturesEnum below if you add a field here.
} Aarch64Features;
@ -141,6 +144,9 @@ typedef enum {
AARCH64_RNG,
AARCH64_BTI,
AARCH64_MTE,
AARCH64_ECV,
AARCH64_AFP,
AARCH64_RPRES,
AARCH64_LAST_,
} Aarch64FeaturesEnum;

3
include/internal/hwcaps.h
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@ -80,6 +80,9 @@ CPU_FEATURES_START_CPP_NAMESPACE
#define AARCH64_HWCAP2_RNG (1UL << 16)
#define AARCH64_HWCAP2_BTI (1UL << 17)
#define AARCH64_HWCAP2_MTE (1UL << 18)
#define AARCH64_HWCAP2_ECV (1UL << 19)
#define AARCH64_HWCAP2_AFP (1UL << 20)
#define AARCH64_HWCAP2_RPRES (1UL << 21)
// http://elixir.free-electrons.com/linux/latest/source/arch/arm/include/uapi/asm/hwcap.h
#define ARM_HWCAP_SWP (1UL << 0)

5
src/impl_aarch64_linux_or_android.c
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@ -74,7 +74,10 @@
LINE(AARCH64_DGH, dgh, "dgh", 0, AARCH64_HWCAP2_DGH) \
LINE(AARCH64_RNG, rng, "rng", 0, AARCH64_HWCAP2_RNG) \
LINE(AARCH64_BTI, bti, "bti", 0, AARCH64_HWCAP2_BTI) \
LINE(AARCH64_MTE, mte, "mte", 0, AARCH64_HWCAP2_MTE)
LINE(AARCH64_MTE, mte, "mte", 0, AARCH64_HWCAP2_MTE) \
LINE(AARCH64_ECV, ecv, "ecv", 0, AARCH64_HWCAP2_ECV) \
LINE(AARCH64_AFP, afp, "afp", 0, AARCH64_HWCAP2_AFP) \
LINE(AARCH64_RPRES, rpres, "rpres", 0, AARCH64_HWCAP2_RPRES)
#define INTROSPECTION_PREFIX Aarch64
#define INTROSPECTION_ENUM_PREFIX AARCH64
#include "define_introspection_and_hwcaps.inl"

3
test/cpuinfo_aarch64_test.cc
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@ -168,6 +168,9 @@ CPU revision : 3)");
EXPECT_FALSE(info.features.rng);
EXPECT_FALSE(info.features.bti);
EXPECT_FALSE(info.features.mte);
EXPECT_FALSE(info.features.ecv);
EXPECT_FALSE(info.features.afp);
EXPECT_FALSE(info.features.rpres);
}
} // namespace