target/aarch64: Cleanup on exit

Restore target configuration on exit so that OpenOCD get correct values
when restarting.

Change-Id: I8cbba1fdae1d3c4a580197b7a97691443780ed06
Signed-off-by: Adrien Grassein <[email protected]>
Signed-off-by: Adrien Charruel <[email protected]>
Reviewed-on: https://review.openocd.org/c/openocd/+/8654
Tested-by: jenkins
Reviewed-by: Antonio Borneo <[email protected]>

Author: Adrien Grassein

src/target/aarch64.c

@@ -2857,6 +2857,14 @@ static void aarch64_deinit_target(struct target *target)
 	struct aarch64_common *aarch64 = target_to_aarch64(target);
 	struct armv8_common *armv8 = &aarch64->armv8_common;
 	struct arm_dpm *dpm = &armv8->dpm;
+	uint64_t address;
+
+	if (target->state == TARGET_HALTED) {
+		// Restore the previous state of the target (gp registers, MMU, caches, etc)
+		int retval = aarch64_restore_one(target, true, &address, false, false);
+		if (retval != ERROR_OK)
+			LOG_TARGET_ERROR(target, "Failed to restore target state");
+	}
 
 	if (armv8->debug_ap)
 		dap_put_ap(armv8->debug_ap);