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[PATCH v2 4/4] hw/nios2: exit to main CPU loop only when unmasking inter
From: |
Wentong Wu |
Subject: |
[PATCH v2 4/4] hw/nios2: exit to main CPU loop only when unmasking interrupts |
Date: |
Fri, 10 Jul 2020 19:34:33 -0400 |
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>
---
hw/nios2/cpu_pic.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/nios2/cpu_pic.c b/hw/nios2/cpu_pic.c
index 1c1989d5..5ea7e52a 100644
--- a/hw/nios2/cpu_pic.c
+++ b/hw/nios2/cpu_pic.c
@@ -54,7 +54,8 @@ static void nios2_pic_cpu_handler(void *opaque, int irq, int
level)
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;
cpu_interrupt(env_cpu(env), CPU_INTERRUPT_HARD);
}
--
2.21.3