[v7] tcg-plugins: add hooks for discontinuities

[PATCH v7 20/25] target/sparc: call plugin trap callbacks

Julian Ganz posted 25 patches 4 months ago

Diff against v3 v5 v6 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>, 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>

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[PATCH v7 20/25] target/sparc: call plugin trap callbacks

Posted by Julian Ganz 4 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 SPARC (32bit and 64bit) targets. We treat
any interrupt other than EXTINT and IVEC as exceptions as they appear to
be synchroneous events.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Julian Ganz <neither@nut.email>
---
 target/sparc/int32_helper.c |  7 +++++++
 target/sparc/int64_helper.c | 10 ++++++++++
 2 files changed, 17 insertions(+)

diff --git a/target/sparc/int32_helper.c b/target/sparc/int32_helper.c
index fdcaa0a578..b29f693a6b 100644
--- a/target/sparc/int32_helper.c
+++ b/target/sparc/int32_helper.c
@@ -24,6 +24,7 @@
 #include "accel/tcg/cpu-ldst.h"
 #include "exec/log.h"
 #include "system/runstate.h"
+#include "qemu/plugin.h"
 
 static const char * const excp_names[0x80] = {
     [TT_TFAULT] = "Instruction Access Fault",
@@ -174,4 +175,10 @@ 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]);
+    } else {
+        qemu_plugin_vcpu_exception_cb(cs, env->regwptr[9]);
+    }
 }
diff --git a/target/sparc/int64_helper.c b/target/sparc/int64_helper.c
index 23adda4cad..067d936cbd 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
 
@@ -255,6 +256,15 @@ 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);
+        break;
+    default:
+        qemu_plugin_vcpu_exception_cb(cs, tsptr->tpc);
+    }
 }
 
 trap_state *cpu_tsptr(CPUSPARCState* env)
-- 
2.49.1