[RFC,v3,08/11] target/mips: call plugin trap callbacks

Commit Message

Julian Ganz Dec. 2, 2024, 7:26 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 MIPS targets.
---
 target/mips/tcg/sysemu/tlb_helper.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

Patch

diff --git a/target/mips/tcg/sysemu/tlb_helper.c b/target/mips/tcg/sysemu/tlb_helper.c
index e98bb95951..2b19975d53 100644
--- a/target/mips/tcg/sysemu/tlb_helper.c
+++ b/target/mips/tcg/sysemu/tlb_helper.c
@@ -18,6 +18,7 @@ 
  */
 #include "qemu/osdep.h"
 #include "qemu/bitops.h"
+#include "qemu/plugin.h"
 
 #include "cpu.h"
 #include "internal.h"
@@ -1033,6 +1034,7 @@  void mips_cpu_do_interrupt(CPUState *cs)
     bool update_badinstr = 0;
     target_ulong offset;
     int cause = -1;
+    uint64_t last_pc = env->active_tc.PC;
 
     if (qemu_loglevel_mask(CPU_LOG_INT)
         && cs->exception_index != EXCP_EXT_INTERRUPT) {
@@ -1051,6 +1053,7 @@  void mips_cpu_do_interrupt(CPUState *cs)
         cs->exception_index = EXCP_NONE;
         mips_semihosting(env);
         env->active_tc.PC += env->error_code;
+        qemu_plugin_vcpu_hostcall_cb(cs, last_pc, env->active_tc.PC);
         return;
     case EXCP_DSS:
         env->CP0_Debug |= 1 << CP0DB_DSS;
@@ -1335,6 +1338,14 @@  void mips_cpu_do_interrupt(CPUState *cs)
                  env->CP0_Status, env->CP0_Cause, env->CP0_BadVAddr,
                  env->CP0_DEPC);
     }
+    switch (cs->exception_index) {
+    case EXCP_NMI:
+    case EXCP_EXT_INTERRUPT:
+        qemu_plugin_vcpu_interrupt_cb(cs, last_pc, env->active_tc.PC);
+        break;
+    default:
+        qemu_plugin_vcpu_exception_cb(cs, last_pc, env->active_tc.PC);
+    }
     cs->exception_index = EXCP_NONE;
 }