[PATCH v6 14/25] target/openrisc: call plugin trap callbacks

Julian Ganz posted 25 patches 1 day, 18 hours ago
Maintainers: "Alex Bennée" <alex.bennee@linaro.org>, Alexandre Iooss <erdnaxe@crans.org>, Mahmoud Mandour <ma.mandourr@gmail.com>, Pierrick Bouvier <pierrick.bouvier@linaro.org>, Richard Henderson <richard.henderson@linaro.org>, Peter Maydell <peter.maydell@linaro.org>, Michael Rolnik <mrolnik@gmail.com>, Helge Deller <deller@gmx.de>, Paolo Bonzini <pbonzini@redhat.com>, Eduardo Habkost <eduardo@habkost.net>, Song Gao <gaosong@loongson.cn>, Laurent Vivier <laurent@vivier.eu>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Aurelien Jarno <aurelien@aurel32.net>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <arikalo@gmail.com>, Stafford Horne <shorne@gmail.com>, Nicholas Piggin <npiggin@gmail.com>, Chinmay Rath <rathc@linux.ibm.com>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Weiwei Li <liwei1518@gmail.com>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Yoshinori Sato <yoshinori.sato@nifty.com>, David Hildenbrand <david@redhat.com>, Ilya Leoshkevich <iii@linux.ibm.com>, Thomas Huth <thuth@redhat.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Artyom Tarasenko <atar4qemu@gmail.com>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, Max Filippov <jcmvbkbc@gmail.com>
[PATCH v6 14/25] target/openrisc: call plugin trap callbacks
Posted by Julian Ganz 1 day, 18 hours ago
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>
---
 target/openrisc/interrupt.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/target/openrisc/interrupt.c b/target/openrisc/interrupt.c
index 486823094c..d357aaa7da 100644
--- 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;
 }
 
-- 
2.49.1