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hw/nios2: exit to main CPU loop only when unmasking interrupts

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Only when guest code is unmasking interrupts, terminate the excution
of translated code and exit to the main CPU loop to handle previous
pended interrupts because of the interrupts mask by guest code.

Signed-off-by: Wentong Wu <wentong.wu@intel.com>
Message-id: 20200710233433.19729-4-wentong.wu@intel.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Wentong Wu 2020-07-13 14:36:11 +01:00 committed by Peter Maydell
parent 77b3f2af57
commit dcef727e5e
1 changed files with 2 additions and 1 deletions
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3
hw/nios2/cpu_pic.c
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@ -54,7 +54,8 @@ static void nios2_pic_cpu_handler(void *opaque, int irq, int level)
void nios2_check_interrupts(CPUNios2State *env) void nios2_check_interrupts(CPUNios2State *env)
{ {
if (env->irq_pending) { if (env->irq_pending &&
(env->regs[CR_STATUS] & CR_STATUS_PIE)) {
env->irq_pending = 0; env->irq_pending = 0;
cpu_interrupt(env_cpu(env), CPU_INTERRUPT_HARD); cpu_interrupt(env_cpu(env), CPU_INTERRUPT_HARD);
} }