From f3ee5160ce3c03795a28e16d1a0b4916a6c959f4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= Date: Tue, 12 Jan 2021 12:44:54 +0200 Subject: target/arm: add arm_is_el2_enabled() helper MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This checks if EL2 is enabled (meaning EL2 registers take effects) in the current security context. Signed-off-by: Rémi Denis-Courmont Reviewed-by: Richard Henderson Message-id: 20210112104511.36576-2-remi.denis.courmont@huawei.com Signed-off-by: Peter Maydell --- target/arm/cpu.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index f58aada410..0bdda90914 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -2148,6 +2148,18 @@ static inline bool arm_is_secure(CPUARMState *env) return arm_is_secure_below_el3(env); } +/* + * Return true if the current security state has AArch64 EL2 or AArch32 Hyp. + * This corresponds to the pseudocode EL2Enabled() + */ +static inline bool arm_is_el2_enabled(CPUARMState *env) +{ + if (arm_feature(env, ARM_FEATURE_EL2)) { + return !arm_is_secure_below_el3(env); + } + return false; +} + #else static inline bool arm_is_secure_below_el3(CPUARMState *env) { @@ -2158,6 +2170,11 @@ static inline bool arm_is_secure(CPUARMState *env) { return false; } + +static inline bool arm_is_el2_enabled(CPUARMState *env) +{ + return false; +} #endif /** -- cgit v1.2.3