To handle a keypress, we trigger the UART3 Interrupt

lupyuen · Jan 20, 2024 · 3deaef2 · 3deaef2
1 parent 6b3e9c9
commit 3deaef2
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/riscv_cpu.c b/riscv_cpu.c
@@ -1157,6 +1157,7 @@ static void raise_exception2(RISCVCPUState *s, uint32_t cause,
 static void raise_exception(RISCVCPUState *s, uint32_t cause)
 {
     printf("raise_exception: cause=%d\n", cause);////
+    printf("raise_exception: sleep\n"); sleep(1);////
     raise_exception2(s, cause, 0);
 }
 

diff --git a/virtio.c b/virtio.c
@@ -1334,8 +1334,8 @@ int virtio_console_write_data(VIRTIODevice *s, const uint8_t *buf, int buf_len)
     //// To handle a keypress, we trigger the UART3 Interrupt.
     //// TODO: Pass the keypress to VM Guest
     printf("[%c]\n", buf[0]); ////
-    // s->int_status |= 1;
-    // set_irq(s->irq, 1);
+    s->int_status |= 1;
+    set_irq(s->irq, 1);
 
     // TODO: Clear the interrupt after reading keypress
     // set_irq(s->irq, 0);