[v5] tcg-plugins: add hooks for discontinuities

[PATCH v5 17/25] target/rx: call plugin trap callbacks

Julian Ganz posted 25 patches 6 months ago

Diff against v3 v6 v7 v8
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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>, Daniel Henrique Barboza <danielhb413@gmail.com>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Weiwei Li <liwei1518@gmail.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Yoshinori Sato <ysato@users.sourceforge.jp>, 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>

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[PATCH v5 17/25] target/rx: call plugin trap callbacks

Posted by Julian Ganz 6 months 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 Renesas Xtreme targets.

Signed-off-by: Julian Ganz <neither@nut.email>
---
 target/rx/helper.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/target/rx/helper.c b/target/rx/helper.c
index 0640ab322b..09f1c25be2 100644
--- a/target/rx/helper.c
+++ b/target/rx/helper.c
@@ -22,6 +22,7 @@
 #include "exec/log.h"
 #include "accel/tcg/cpu-ldst.h"
 #include "hw/irq.h"
+#include "qemu/plugin.h"
 
 void rx_cpu_unpack_psw(CPURXState *env, uint32_t psw, int rte)
 {
@@ -46,6 +47,7 @@ void rx_cpu_do_interrupt(CPUState *cs)
     CPURXState *env = cpu_env(cs);
     int do_irq = cs->interrupt_request & INT_FLAGS;
     uint32_t save_psw;
+    uint64_t last_pc = env->pc;
 
     env->in_sleep = 0;
 
@@ -65,6 +67,7 @@ void rx_cpu_do_interrupt(CPUState *cs)
             env->psw_ipl = 15;
             cs->interrupt_request &= ~CPU_INTERRUPT_FIR;
             qemu_set_irq(env->ack, env->ack_irq);
+            qemu_plugin_vcpu_interrupt_cb(cs, last_pc);
             qemu_log_mask(CPU_LOG_INT, "fast interrupt raised\n");
         } else if (do_irq & CPU_INTERRUPT_HARD) {
             env->isp -= 4;
@@ -75,6 +78,7 @@ void rx_cpu_do_interrupt(CPUState *cs)
             env->psw_ipl = env->ack_ipl;
             cs->interrupt_request &= ~CPU_INTERRUPT_HARD;
             qemu_set_irq(env->ack, env->ack_irq);
+            qemu_plugin_vcpu_interrupt_cb(cs, last_pc);
             qemu_log_mask(CPU_LOG_INT,
                           "interrupt 0x%02x raised\n", env->ack_irq);
         }
@@ -92,6 +96,14 @@ void rx_cpu_do_interrupt(CPUState *cs)
         } else {
             env->pc = cpu_ldl_data(env, env->intb + (vec & 0xff) * 4);
         }
+
+        if (vec == 30) {
+            /* Non-maskable interrupt */
+            qemu_plugin_vcpu_interrupt_cb(cs, last_pc);
+        } else {
+            qemu_plugin_vcpu_exception_cb(cs, last_pc);
+        }
+
         switch (vec) {
         case 20:
             expname = "privilege violation";
-- 
2.49.0

Re: [PATCH v5 17/25] target/rx: call plugin trap callbacks

Posted by Richard Henderson 5 months, 3 weeks ago

On 5/19/25 16:19, Julian Ganz wrote:
> 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 Renesas Xtreme targets.
> 
> Signed-off-by: Julian Ganz <neither@nut.email>
> ---
>   target/rx/helper.c | 12 ++++++++++++
>   1 file changed, 12 insertions(+)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~