xref: /qemu/bsd-user/arm/target_arch_vmparam.h (revision b83a80e8)
1 /*
2  *  arm VM parameters definitions
3  *
4  *  Copyright (c) 2013 Stacey D. Son
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
14  *  GNU 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 _TARGET_ARCH_VMPARAM_H_
20 #define _TARGET_ARCH_VMPARAM_H_
21 
22 #include "cpu.h"
23 
24 /* compare to sys/arm/include/vmparam.h */
25 #define TARGET_MAXTSIZ      (64 * MiB)           /* max text size */
26 #define TARGET_DFLDSIZ      (128 * MiB)          /* initial data size limit */
27 #define TARGET_MAXDSIZ      (512 * MiB)          /* max data size */
28 #define TARGET_DFLSSIZ      (4 * MiB)            /* initial stack size limit */
29 #define TARGET_MAXSSIZ      (64 * MiB)           /* max stack size */
30 #define TARGET_SGROWSIZ     (128 * KiB)          /* amount to grow stack */
31 
32 #define TARGET_RESERVED_VA  0xf7000000
33 
34                 /* KERNBASE - 512 MB */
35 #define TARGET_VM_MAXUSER_ADDRESS   (0xc0000000 - (512 * MiB))
36 #define TARGET_USRSTACK             TARGET_VM_MAXUSER_ADDRESS
37 
38 static inline abi_ulong get_sp_from_cpustate(CPUARMState *state)
39 {
40     return state->regs[13]; /* sp */
41 }
42 
43 static inline void set_second_rval(CPUARMState *state, abi_ulong retval2)
44 {
45     state->regs[1] = retval2;
46 }
47 
48 #endif  /* ! _TARGET_ARCH_VMPARAM_H_ */
49