1/**
2 * \file
3 * \brief A struct for all shared data between the kernels
4 */
5
6/*
7 * Copyright (c) 2008,2010,2016 ETH Zurich
8 * All rights reserved.
9 *
10 * This file is distributed under the terms in the attached LICENSE file.
11 * If you do not find this file, copies can be found by writing to:
12 * ETH Zurich D-INFK, Universitaetstr 6, CH-8092 Zurich. Attn: Systems Group.
13 */
14
15
16#ifndef KERNEL_ARCH_ARM_GLOBAL_H
17#define KERNEL_ARCH_ARM_GLOBAL_H
18
19#include <barrelfish_kpi/spinlocks_arch.h>
20
21/**
22 * \brief State shared between CPU drivers
23 * By design, this should be empty. A spinlock for kernel debug printing is
24 * our only concession to shared state.
25 */
26struct global {
27    /// Shared locks between the kernels
28    struct {
29        spinlock_t print;       ///< Lock for printing
30    } locks;
31};
32
33extern struct global *global;
34
35#endif
36