target/openrisc: call plugin trap callbacks

We recently introduced API for registering callbacks for trap related
events as well as the corresponding hook functions. Due to differences
between architectures, the latter need to be called from target specific
code.

This change places hooks for OpenRISC targets. We treat anything other
than resets, timer and device interrupts as exceptions.

Signed-off-by: Julian Ganz <neither@nut.email>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20251027110344.2289945-21-alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

diff --git a/target/openrisc/interrupt.c b/target/openrisc/interrupt.c
index 486823094c82dc319fdc154ca5da6f5ca2c0e900..d357aaa7da1c64fbb77d007a7e7927747a842f26 100644 (file)
--- a/target/openrisc/interrupt.c
+++ b/target/openrisc/interrupt.c
@@ -25,11 +25,13 @@
 #ifndef CONFIG_USER_ONLY
 #include "hw/loader.h"
 #endif
+#include "qemu/plugin.h"
 
 void openrisc_cpu_do_interrupt(CPUState *cs)
 {
     CPUOpenRISCState *env = cpu_env(cs);
     int exception = cs->exception_index;
+    uint64_t last_pc = env->pc;
 
     env->epcr = env->pc;
 
@@ -98,6 +100,19 @@ void openrisc_cpu_do_interrupt(CPUState *cs)
         cpu_abort(cs, "Unhandled exception 0x%x\n", exception);
     }
 
+    switch (exception) {
+    case EXCP_RESET:
+        /* Resets are already exposed to plugins through a dedicated callback */
+        break;
+    case EXCP_TICK:
+    case EXCP_INT:
+        qemu_plugin_vcpu_interrupt_cb(cs, last_pc);
+        break;
+    default:
+        qemu_plugin_vcpu_exception_cb(cs, last_pc);
+        break;
+    }
+
     cs->exception_index = -1;
 }