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target/arm: Move PC alignment check

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Move this earlier to make the next patch diff cleaner. While here
update the comment slightly to not give the impression that the
misalignment affects only TCG.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Fabiano Rosas 2023-02-13 17:29:03 -03:00 • committed by Peter Maydell
parent d55b2a2aa3
commit 501e6d1f6c
1 changed files with 9 additions and 9 deletions
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18
target/arm/machine.c
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@ -839,6 +839,15 @@ static int cpu_post_load(void *opaque, int version_id)
}
}
/*
* Misaligned thumb pc is architecturally impossible. Fail the
* incoming migration. For TCG it would trigger the assert in
* thumb_tr_translate_insn().
*/
if (!is_a64(env) && env->thumb && (env->regs[15] & 1)) {
return -1;
}
hw_breakpoint_update_all(cpu);
hw_watchpoint_update_all(cpu);
@ -856,15 +865,6 @@ static int cpu_post_load(void *opaque, int version_id)
}
}
/*
* Misaligned thumb pc is architecturally impossible.
* We have an assert in thumb_tr_translate_insn to verify this.
* Fail an incoming migrate to avoid this assert.
*/
if (!is_a64(env) && env->thumb && (env->regs[15] & 1)) {
return -1;
}
if (!kvm_enabled()) {
pmu_op_finish(&cpu->env);
}