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target/arm: Always clear exclusive monitor on reset 

There's no particular reason why the exclusive monitor should
be only cleared on reset in system emulation mode. It doesn't
hurt if it isn't cleared in user mode, but we might as well
reduce the amount of code we have that's inside an ifdef.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210914120725.24992-3-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2021-09-20 09:54:33 +01:00
parent b62ceeaf80
commit 4a888072c8
1 changed files with 3 additions and 3 deletions
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6
target/arm/cpu.c
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@ -381,15 +381,15 @@ static void arm_cpu_reset(DeviceState *dev)
env->regs[15] = 0xFFFF0000;
}
env->vfp.xregs[ARM_VFP_FPEXC] = 0;
#endif
/* M profile requires that reset clears the exclusive monitor;
* A profile does not, but clearing it makes more sense than having it
* set with an exclusive access on address zero.
*/
arm_clear_exclusive(env);
env->vfp.xregs[ARM_VFP_FPEXC] = 0;
#endif
if (arm_feature(env, ARM_FEATURE_PMSA)) {
if (cpu->pmsav7_dregion > 0) {
if (arm_feature(env, ARM_FEATURE_V8)) {