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[Qemu-devel] [PATCH 03/15] target/xtensa: extract test for syscall instr
From: |
Max Filippov |
Subject: |
[Qemu-devel] [PATCH 03/15] target/xtensa: extract test for syscall instruction |
Date: |
Tue, 4 Sep 2018 18:43:40 -0700 |
- mark syscall instruction;
- put syscall exception check right after privileged exception check;
Signed-off-by: Max Filippov <address@hidden>
---
target/xtensa/translate.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c
index ebee7bd65e48..450e30d316a8 100644
--- a/target/xtensa/translate.c
+++ b/target/xtensa/translate.c
@@ -1047,6 +1047,11 @@ static void disas_xtensa_insn(CPUXtensaState *env,
DisasContext *dc)
return;
}
+ if (op_flags & XTENSA_OP_SYSCALL) {
+ gen_exception_cause(dc, SYSCALL_CAUSE);
+ return;
+ }
+
for (slot = 0; slot < slots; ++slot) {
XtensaOpcodeOps *ops = slot_prop[slot].ops;
@@ -2557,12 +2562,6 @@ static void translate_subx(DisasContext *dc, const
uint32_t arg[],
}
}
-static void translate_syscall(DisasContext *dc, const uint32_t arg[],
- const uint32_t par[])
-{
- gen_exception_cause(dc, SYSCALL_CAUSE);
-}
-
static void translate_waiti(DisasContext *dc, const uint32_t arg[],
const uint32_t par[])
{
@@ -4094,7 +4093,7 @@ static const XtensaOpcodeOps core_ops[] = {
.par = (const uint32_t[]){3},
}, {
.name = "syscall",
- .translate = translate_syscall,
+ .op_flags = XTENSA_OP_SYSCALL,
}, {
.name = "umul.aa.hh",
.translate = translate_mac16,
--
2.11.0
- [Qemu-devel] [PATCH 00/15] target/xtensa: preparation for FLIX support, Max Filippov, 2018/09/04
- [Qemu-devel] [PATCH 03/15] target/xtensa: extract test for syscall instruction,
Max Filippov <=
- [Qemu-devel] [PATCH 04/15] target/xtensa: extract test for debug exception, Max Filippov, 2018/09/04
- [Qemu-devel] [PATCH 01/15] target/xtensa: extract test for an illegal instruction, Max Filippov, 2018/09/04
- [Qemu-devel] [PATCH 06/15] target/xtensa: extract test for window underflow exception, Max Filippov, 2018/09/04
- [Qemu-devel] [PATCH 07/15] target/xtensa: extract test for alloca exception, Max Filippov, 2018/09/04
- [Qemu-devel] [PATCH 02/15] target/xtensa: extract test for privileged instruction, Max Filippov, 2018/09/04
- [Qemu-devel] [PATCH 08/15] target/xtensa: extract test for cpdisabled exception, Max Filippov, 2018/09/04
- [Qemu-devel] [PATCH 09/15] target/xtensa: extract test for division by zero, Max Filippov, 2018/09/04
- [Qemu-devel] [PATCH 10/15] target/xtensa: extract unconditional TB termination, Max Filippov, 2018/09/04
- [Qemu-devel] [PATCH 12/15] target/xtensa: always end TB on CCOUNT access/CCOMPARE write, Max Filippov, 2018/09/04
- [Qemu-devel] [PATCH 13/15] target/xtensa: extract unconditional TB termination via slot 0, Max Filippov, 2018/09/04