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| author | Richard Henderson | 2019-01-21 11:23:11 +0100 |
|---|---|---|
| committer | Peter Maydell | 2019-01-21 11:23:11 +0100 |
| commit | 991ad91b6a1f09a6ad62b6e6da78d83b548daec7 (patch) | |
| tree | 599233d91a94bc65ef247c6b953de52045933132 /target/arm/cpu.h | |
| parent | ftgmac100: implement the new MDIO interface on Aspeed SoC (diff) | |
| download | qemu-991ad91b6a1f09a6ad62b6e6da78d83b548daec7.tar.gz qemu-991ad91b6a1f09a6ad62b6e6da78d83b548daec7.tar.xz qemu-991ad91b6a1f09a6ad62b6e6da78d83b548daec7.zip | |
target/arm: Add state for the ARMv8.3-PAuth extension
Add storage space for the 5 encryption keys.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190108223129.5570-2-richard.henderson@linaro.org
[PMM: use 0xf rather than -1 in FIELD_DP64() expressions to
avoid clang warnings about implicit truncation from int to
bitfield changing the value]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm/cpu.h')
| -rw-r--r-- | target/arm/cpu.h | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/target/arm/cpu.h b/target/arm/cpu.h index 6f606eb97b..03e93fe707 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -201,11 +201,16 @@ typedef struct ARMVectorReg { uint64_t d[2 * ARM_MAX_VQ] QEMU_ALIGNED(16); } ARMVectorReg; -/* In AArch32 mode, predicate registers do not exist at all. */ #ifdef TARGET_AARCH64 +/* In AArch32 mode, predicate registers do not exist at all. */ typedef struct ARMPredicateReg { uint64_t p[2 * ARM_MAX_VQ / 8] QEMU_ALIGNED(16); } ARMPredicateReg; + +/* In AArch32 mode, PAC keys do not exist at all. */ +typedef struct ARMPACKey { + uint64_t lo, hi; +} ARMPACKey; #endif @@ -605,6 +610,14 @@ typedef struct CPUARMState { uint32_t cregs[16]; } iwmmxt; +#ifdef TARGET_AARCH64 + ARMPACKey apia_key; + ARMPACKey apib_key; + ARMPACKey apda_key; + ARMPACKey apdb_key; + ARMPACKey apga_key; +#endif + #if defined(CONFIG_USER_ONLY) /* For usermode syscall translation. */ int eabi; @@ -3264,6 +3277,21 @@ static inline bool isar_feature_aa64_fcma(const ARMISARegisters *id) return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, FCMA) != 0; } +static inline bool isar_feature_aa64_pauth(const ARMISARegisters *id) +{ + /* + * Note that while QEMU will only implement the architected algorithm + * QARMA, and thus APA+GPA, the host cpu for kvm may use implementation + * defined algorithms, and thus API+GPI, and this predicate controls + * migration of the 128-bit keys. + */ + return (id->id_aa64isar1 & + (FIELD_DP64(0, ID_AA64ISAR1, APA, 0xf) | + FIELD_DP64(0, ID_AA64ISAR1, API, 0xf) | + FIELD_DP64(0, ID_AA64ISAR1, GPA, 0xf) | + FIELD_DP64(0, ID_AA64ISAR1, GPI, 0xf))) != 0; +} + static inline bool isar_feature_aa64_fp16(const ARMISARegisters *id) { /* We always set the AdvSIMD and FP fields identically wrt FP16. */ |