From: David Reiss Date: Mon, 27 Feb 2023 21:33:27 +0000 (-1000) Subject: target/arm: Export arm_v7m_mrs_control X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=48688c94418590585c05faed6fd7abb3296bf686;p=qemu.git target/arm: Export arm_v7m_mrs_control Allow the function to be used outside of m_helper.c. Rename with an "arm_" prefix. Reviewed-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: David Reiss Signed-off-by: Richard Henderson Message-id: 20230227213329.793795-13-richard.henderson@linaro.org [rth: Split out of a larger patch] Signed-off-by: Richard Henderson Signed-off-by: Peter Maydell --- diff --git a/target/arm/internals.h b/target/arm/internals.h index dda89aa5df..086e88e237 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -1357,6 +1357,9 @@ void arm_cpu_pauth_finalize(ARMCPU *cpu, Error **errp); void arm_cpu_lpa2_finalize(ARMCPU *cpu, Error **errp); #endif +/* Read the CONTROL register as the MRS instruction would. */ +uint32_t arm_v7m_mrs_control(CPUARMState *env, uint32_t secure); + #ifdef CONFIG_USER_ONLY static inline void define_cortex_a72_a57_a53_cp_reginfo(ARMCPU *cpu) { } #else diff --git a/target/arm/tcg/m_helper.c b/target/arm/tcg/m_helper.c index f94e87e728..03be79e7bf 100644 --- a/target/arm/tcg/m_helper.c +++ b/target/arm/tcg/m_helper.c @@ -56,7 +56,7 @@ static uint32_t v7m_mrs_xpsr(CPUARMState *env, uint32_t reg, unsigned el) return xpsr_read(env) & mask; } -static uint32_t v7m_mrs_control(CPUARMState *env, uint32_t secure) +uint32_t arm_v7m_mrs_control(CPUARMState *env, uint32_t secure) { uint32_t value = env->v7m.control[secure]; @@ -93,7 +93,7 @@ uint32_t HELPER(v7m_mrs)(CPUARMState *env, uint32_t reg) case 0 ... 7: /* xPSR sub-fields */ return v7m_mrs_xpsr(env, reg, 0); case 20: /* CONTROL */ - return v7m_mrs_control(env, 0); + return arm_v7m_mrs_control(env, 0); default: /* Unprivileged reads others as zero. */ return 0; @@ -2465,7 +2465,7 @@ uint32_t HELPER(v7m_mrs)(CPUARMState *env, uint32_t reg) case 0 ... 7: /* xPSR sub-fields */ return v7m_mrs_xpsr(env, reg, el); case 20: /* CONTROL */ - return v7m_mrs_control(env, env->v7m.secure); + return arm_v7m_mrs_control(env, env->v7m.secure); case 0x94: /* CONTROL_NS */ /* * We have to handle this here because unprivileged Secure code