[RFC,v3,10/11] target/sparc: call plugin trap callbacks

Commit Message

Julian Ganz Dec. 2, 2024, 7:41 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 SPARC (32bit and 64bit) targets. We treat
any interrupt other than EXTINT and IVEC as exceptions as they appear to
be synchroneous events.
---
 target/sparc/int32_helper.c |  7 +++++++
 target/sparc/int64_helper.c | 10 ++++++++++
 2 files changed, 17 insertions(+)

Patch

diff --git a/target/sparc/int32_helper.c b/target/sparc/int32_helper.c
index f2dd8bcb2e..86b21eecb6 100644
--- a/target/sparc/int32_helper.c
+++ b/target/sparc/int32_helper.c
@@ -24,6 +24,7 @@ 
 #include "exec/cpu_ldst.h"
 #include "exec/log.h"
 #include "sysemu/runstate.h"
+#include "qemu/plugin.h"
 
 static const char * const excp_names[0x80] = {
     [TT_TFAULT] = "Instruction Access Fault",
@@ -172,4 +173,10 @@  void sparc_cpu_do_interrupt(CPUState *cs)
         env->qemu_irq_ack(env, intno);
     }
 #endif
+
+    if (intno == TT_EXTINT) {
+        qemu_plugin_vcpu_interrupt_cb(cs, env->regwptr[9], env->pc);
+    } else {
+        qemu_plugin_vcpu_exception_cb(cs, env->regwptr[9], env->pc);
+    }
 }
diff --git a/target/sparc/int64_helper.c b/target/sparc/int64_helper.c
index bd14c7a0db..9f0e7206d3 100644
--- a/target/sparc/int64_helper.c
+++ b/target/sparc/int64_helper.c
@@ -23,6 +23,7 @@ 
 #include "exec/helper-proto.h"
 #include "exec/log.h"
 #include "trace.h"
+#include "qemu/plugin.h"
 
 #define DEBUG_PCALL
 
@@ -253,6 +254,15 @@  void sparc_cpu_do_interrupt(CPUState *cs)
     }
     env->npc = env->pc + 4;
     cs->exception_index = -1;
+
+    switch (intno) {
+    case TT_EXTINT:
+    case TT_IVEC:
+        qemu_plugin_vcpu_interrupt_cb(cs, tsptr->tpc, env->pc);
+        break;
+    default:
+        qemu_plugin_vcpu_exception_cb(cs, tsptr->tpc, env->pc);
+    }
 }
 
 trap_state *cpu_tsptr(CPUSPARCState* env)