qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
1/*
2 * MIPS specific CPU ABI and functions for linux-user
3 *
4 * Copyright (c) 2004-2005 Jocelyn Mayer
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library 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 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18 */
19#ifndef MIPS_TARGET_CPU_H
20#define MIPS_TARGET_CPU_H
21
22static inline void cpu_clone_regs_child(CPUMIPSState *env, target_ulong newsp,
23 unsigned flags)
24{
25 if (newsp) {
26 env->active_tc.gpr[29] = newsp;
27 }
28 env->active_tc.gpr[7] = 0;
29 env->active_tc.gpr[2] = 0;
30}
31
32static inline void cpu_clone_regs_parent(CPUMIPSState *env, unsigned flags)
33{
34}
35
36static inline void cpu_set_tls(CPUMIPSState *env, target_ulong newtls)
37{
38 env->active_tc.CP0_UserLocal = newtls;
39}
40
41static inline abi_ulong get_sp_from_cpustate(CPUMIPSState *state)
42{
43 return state->active_tc.gpr[29];
44}
45#endif