1 /*
2  *  Intel x86_64 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 
20 #ifndef TARGET_ARCH_VMPARAM_H
21 #define TARGET_ARCH_VMPARAM_H
22 
23 #include "cpu.h"
24 
25 /* compare to amd64/include/vmparam.h */
26 #define TARGET_MAXTSIZ  (128 * MiB)             /* max text size */
27 #define TARGET_DFLDSIZ  (32 * GiB)              /* initial data size limit */
28 #define TARGET_MAXDSIZ  (32 * GiB)              /* max data size */
29 #define TARGET_DFLSSIZ  (8 * MiB)               /* initial stack size limit */
30 #define TARGET_MAXSSIZ  (512 * MiB)             /* max stack size */
31 #define TARGET_SGROWSIZ (128 * KiB)             /* amount to grow stack */
32 
33 #define TARGET_VM_MAXUSER_ADDRESS   (0x00007fffff000000UL)
34 
35 #define TARGET_USRSTACK (TARGET_VM_MAXUSER_ADDRESS - TARGET_PAGE_SIZE)
36 
37 static inline abi_ulong get_sp_from_cpustate(CPUX86State *state)
38 {
39     return state->regs[R_ESP];
40 }
41 
42 static inline void set_second_rval(CPUX86State *state, abi_ulong retval2)
43 {
44     state->regs[R_EDX] = retval2;
45 }
46 
47 #endif /* TARGET_ARCH_VMPARAM_H */
48