From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-devel@nongnu.org
Cc: Richard Henderson <richard.henderson@linaro.org>,
qemu-riscv@nongnu.org, Palmer Dabbelt <palmer@dabbelt.com>,
Bin Meng <bin.meng@windriver.com>,
Alistair Francis <alistair.francis@wdc.com>,
Furquan Shaikh <furquan@rivosinc.com>
Subject: [PATCH v2 3/7] target/m68k: Honour -semihosting-config userspace=on
Date: Mon, 22 Aug 2022 15:12:26 +0100 [thread overview]
Message-ID: <20220822141230.3658237-4-peter.maydell@linaro.org> (raw)
In-Reply-To: <20220822141230.3658237-1-peter.maydell@linaro.org>
Honour the commandline -semihosting-config userspace=on option,
instead of never permitting userspace semihosting calls in system
emulation mode, by passing the correct value to the is_userspace
argument of semihosting_enabled(), instead of manually checking and
always forbidding semihosting if the guest is in userspace.
(Note that target/m68k doesn't support semihosting at all
in the linux-user build.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/m68k/op_helper.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/target/m68k/op_helper.c b/target/m68k/op_helper.c
index 4b3dfec1306..a96a0340506 100644
--- a/target/m68k/op_helper.c
+++ b/target/m68k/op_helper.c
@@ -203,8 +203,7 @@ static void cf_interrupt_all(CPUM68KState *env, int is_hw)
cf_rte(env);
return;
case EXCP_HALT_INSN:
- if (semihosting_enabled(false)
- && (env->sr & SR_S) != 0
+ if (semihosting_enabled((env->sr & SR_S) == 0)
&& (env->pc & 3) == 0
&& cpu_lduw_code(env, env->pc - 4) == 0x4e71
&& cpu_ldl_code(env, env->pc) == 0x4e7bf000) {
--
2.25.1
next prev parent reply other threads:[~2022-08-22 15:41 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-22 14:12 [PATCH v2 0/7] Allow semihosting from user mode Peter Maydell
2022-08-22 14:12 ` [PATCH v2 1/7] semihosting: Allow optional use of semihosting from userspace Peter Maydell
2022-08-22 14:12 ` [PATCH v2 2/7] target/arm: Honour -semihosting-config userspace=on Peter Maydell
2022-08-22 14:12 ` Peter Maydell [this message]
2022-08-22 14:12 ` [PATCH v2 4/7] target/mips: " Peter Maydell
2022-08-22 14:12 ` [PATCH v2 5/7] target/nios2: " Peter Maydell
2022-08-22 14:12 ` [PATCH v2 6/7] target/xtensa: " Peter Maydell
2022-08-22 14:12 ` [PATCH v2 7/7] target/riscv: Honour -semihosting-config userspace=on and enable=on Peter Maydell
2022-08-22 16:11 ` Richard Henderson
2022-08-22 21:43 ` Alistair Francis
2022-09-06 7:50 ` [PATCH v2 0/7] Allow semihosting from user mode Richard Henderson
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