target/arm: Move PC alignment check

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>

diff --git a/target/arm/machine.c b/target/arm/machine.c
index 5f261526525635f90e88c6346e80957f2f879a03..b4c3850570cbb8bdedf441e11580f7b6499d1fa2 100644 (file)
--- a/target/arm/machine.c
+++ b/target/arm/machine.c
@@ -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);
     }