qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
1/*
2 * This struct defines the way the registers are stored on the
3 * stack during a system call.
4 *
5 * Reference: linux/arch/riscv/include/uapi/asm/ptrace.h
6 */
7
8#ifndef LINUX_USER_RISCV_TARGET_SYSCALL_H
9#define LINUX_USER_RISCV_TARGET_SYSCALL_H
10
11struct target_pt_regs {
12 abi_long sepc;
13 abi_long ra;
14 abi_long sp;
15 abi_long gp;
16 abi_long tp;
17 abi_long t0;
18 abi_long t1;
19 abi_long t2;
20 abi_long s0;
21 abi_long s1;
22 abi_long a0;
23 abi_long a1;
24 abi_long a2;
25 abi_long a3;
26 abi_long a4;
27 abi_long a5;
28 abi_long a6;
29 abi_long a7;
30 abi_long s2;
31 abi_long s3;
32 abi_long s4;
33 abi_long s5;
34 abi_long s6;
35 abi_long s7;
36 abi_long s8;
37 abi_long s9;
38 abi_long s10;
39 abi_long s11;
40 abi_long t3;
41 abi_long t4;
42 abi_long t5;
43 abi_long t6;
44};
45
46#ifdef TARGET_RISCV32
47#define UNAME_MACHINE "riscv32"
48#else
49#define UNAME_MACHINE "riscv64"
50#endif
51#define UNAME_MINIMUM_RELEASE "4.15.0"
52
53#define TARGET_MINSIGSTKSZ 2048
54#define TARGET_MLOCKALL_MCL_CURRENT 1
55#define TARGET_MLOCKALL_MCL_FUTURE 2
56
57/* clone(flags, newsp, ptidptr, tls, ctidptr) for RISC-V */
58/* This comes from linux/kernel/fork.c, CONFIG_CLONE_BACKWARDS */
59#define TARGET_CLONE_BACKWARDS
60
61#endif