qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
1/*
2 * S/390 specific CPU ABI and functions for linux-user
3 *
4 * Copyright (c) 2009 Ulrich Hecht
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19#ifndef S390X_TARGET_CPU_H
20#define S390X_TARGET_CPU_H
21
22static inline void cpu_clone_regs_child(CPUS390XState *env, target_ulong newsp,
23 unsigned flags)
24{
25 if (newsp) {
26 env->regs[15] = newsp;
27 }
28 env->regs[2] = 0;
29}
30
31static inline void cpu_clone_regs_parent(CPUS390XState *env, unsigned flags)
32{
33}
34
35static inline void cpu_set_tls(CPUS390XState *env, target_ulong newtls)
36{
37 env->aregs[0] = newtls >> 32;
38 env->aregs[1] = newtls & 0xffffffffULL;
39}
40
41static inline abi_ulong get_sp_from_cpustate(CPUS390XState *state)
42{
43 return state->regs[15];
44}
45#endif