root / target-s390x / helper.c @ c92114b1
History | View | Annotate | Download (2.1 kB)
1 |
/*
|
---|---|
2 |
* S/390 helpers
|
3 |
*
|
4 |
* Copyright (c) 2009 Ulrich Hecht
|
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 |
|
20 |
#include <stdio.h> |
21 |
#include <stdlib.h> |
22 |
#include <string.h> |
23 |
|
24 |
#include "cpu.h" |
25 |
#include "exec-all.h" |
26 |
#include "gdbstub.h" |
27 |
#include "qemu-common.h" |
28 |
|
29 |
#include <linux/kvm.h> |
30 |
#include "kvm.h" |
31 |
|
32 |
CPUS390XState *cpu_s390x_init(const char *cpu_model) |
33 |
{ |
34 |
CPUS390XState *env; |
35 |
static int inited = 0; |
36 |
|
37 |
env = qemu_mallocz(sizeof(CPUS390XState));
|
38 |
cpu_exec_init(env); |
39 |
if (!inited) {
|
40 |
inited = 1;
|
41 |
} |
42 |
|
43 |
env->cpu_model_str = cpu_model; |
44 |
cpu_reset(env); |
45 |
qemu_init_vcpu(env); |
46 |
return env;
|
47 |
} |
48 |
|
49 |
void cpu_reset(CPUS390XState *env)
|
50 |
{ |
51 |
if (qemu_loglevel_mask(CPU_LOG_RESET)) {
|
52 |
qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
|
53 |
log_cpu_state(env, 0);
|
54 |
} |
55 |
|
56 |
memset(env, 0, offsetof(CPUS390XState, breakpoints));
|
57 |
/* FIXME: reset vector? */
|
58 |
tlb_flush(env, 1);
|
59 |
} |
60 |
|
61 |
target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr) |
62 |
{ |
63 |
return 0; |
64 |
} |
65 |
|
66 |
#ifndef CONFIG_USER_ONLY
|
67 |
|
68 |
int cpu_s390x_handle_mmu_fault (CPUState *env, target_ulong address, int rw, |
69 |
int mmu_idx, int is_softmmu) |
70 |
{ |
71 |
target_ulong phys; |
72 |
int prot;
|
73 |
|
74 |
/* XXX: implement mmu */
|
75 |
|
76 |
phys = address; |
77 |
prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; |
78 |
|
79 |
tlb_set_page(env, address & TARGET_PAGE_MASK, |
80 |
phys & TARGET_PAGE_MASK, prot, |
81 |
mmu_idx, TARGET_PAGE_SIZE); |
82 |
return 0; |
83 |
} |
84 |
#endif /* CONFIG_USER_ONLY */ |