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| author | Richard Henderson <richard.henderson@linaro.org> | 2023-02-27 12:58:31 -1000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2023-03-06 14:08:12 +0000 |
| commit | fcc7404eff24b4c8b322fb27ca5ae7f3113129c3 (patch) | |
| tree | 84c7e535868bae2ed11defb6704786f11d2b4f32 /target/arm | |
| parent | a0262ba68c7b07e0eb004464b333395151f053da (diff) | |
| download | qemu-fcc7404eff24b4c8b322fb27ca5ae7f3113129c3.zip qemu-fcc7404eff24b4c8b322fb27ca5ae7f3113129c3.tar.gz qemu-fcc7404eff24b4c8b322fb27ca5ae7f3113129c3.tar.bz2 | |
target/arm: Diagnose incorrect usage of arm_is_secure subroutines
In several places we use arm_is_secure_below_el3 and
arm_is_el3_or_mon separately from arm_is_secure.
These functions make no sense for m-profile, and
would indicate prior incorrect feature testing.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230227225832.816605-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm')
| -rw-r--r-- | target/arm/cpu.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/target/arm/cpu.h b/target/arm/cpu.h index ab18701..c097cae 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -2384,7 +2384,8 @@ static inline int arm_feature(CPUARMState *env, int feature) void arm_cpu_finalize_features(ARMCPU *cpu, Error **errp); #if !defined(CONFIG_USER_ONLY) -/* Return true if exception levels below EL3 are in secure state, +/* + * Return true if exception levels below EL3 are in secure state, * or would be following an exception return to that level. * Unlike arm_is_secure() (which is always a question about the * _current_ state of the CPU) this doesn't care about the current @@ -2392,6 +2393,7 @@ void arm_cpu_finalize_features(ARMCPU *cpu, Error **errp); */ static inline bool arm_is_secure_below_el3(CPUARMState *env) { + assert(!arm_feature(env, ARM_FEATURE_M)); if (arm_feature(env, ARM_FEATURE_EL3)) { return !(env->cp15.scr_el3 & SCR_NS); } else { @@ -2405,6 +2407,7 @@ static inline bool arm_is_secure_below_el3(CPUARMState *env) /* Return true if the CPU is AArch64 EL3 or AArch32 Mon */ static inline bool arm_is_el3_or_mon(CPUARMState *env) { + assert(!arm_feature(env, ARM_FEATURE_M)); if (arm_feature(env, ARM_FEATURE_EL3)) { if (is_a64(env) && extract32(env->pstate, 2, 2) == 3) { /* CPU currently in AArch64 state and EL3 */ |