[RFC,v2,6/7] target/riscv: call plugin trap callbacks

Commit Message

Julian Ganz Oct. 19, 2024, 4:39 p.m. UTC

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 RISC-V targets.

Signed-off-by: Julian Ganz <[e-mail]>
---
 target/riscv/cpu_helper.c | 8 ++++++++
 1 file changed, 8 insertions(+)

Patch

diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
index a935377b4a..2a95869339 100644
--- a/target/riscv/cpu_helper.c
+++ b/target/riscv/cpu_helper.c
@@ -33,6 +33,7 @@ 
 #include "cpu_bits.h"
 #include "debug.h"
 #include "tcg/oversized-guest.h"
+#include "qemu/plugin.h"
 
 int riscv_env_mmu_index(CPURISCVState *env, bool ifetch)
 {
@@ -1678,6 +1679,7 @@  void riscv_cpu_do_interrupt(CPUState *cs)
         case RISCV_EXCP_SEMIHOST:
             do_common_semihosting(cs);
             env->pc += 4;
+            qemu_plugin_vcpu_semihosting_cb(cs);
             return;
 #endif
         case RISCV_EXCP_LOAD_GUEST_ACCESS_FAULT:
@@ -1839,6 +1841,12 @@  void riscv_cpu_do_interrupt(CPUState *cs)
         riscv_cpu_set_mode(env, PRV_M, virt);
     }
 
+    if (async) {
+        qemu_plugin_vcpu_interrupt_cb(cs);
+    } else {
+        qemu_plugin_vcpu_exception_cb(cs);
+    }
+
     /*
      * NOTE: it is not necessary to yield load reservations here. It is only
      * necessary for an SC from "another hart" to cause a load reservation