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target/m68k: Honour -semihosting-config userspace=on 

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>
Message-Id: <20220822141230.3658237-4-peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Peter Maydell 2022-08-22 15:12:26 +01:00 committed by Richard Henderson
parent 19b26317e9
commit a52417e1ee
1 changed files with 1 additions and 2 deletions
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3
target/m68k/op_helper.c
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@ -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) {