root / target-s390x / helper.c @ 44e4c0ba
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1 | 10ec5117 | Alexander Graf | /*
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2 | 10ec5117 | Alexander Graf | * S/390 helpers
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3 | 10ec5117 | Alexander Graf | *
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4 | 10ec5117 | Alexander Graf | * Copyright (c) 2009 Ulrich Hecht
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5 | 10ec5117 | Alexander Graf | *
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6 | 10ec5117 | Alexander Graf | * This library is free software; you can redistribute it and/or
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7 | 10ec5117 | Alexander Graf | * modify it under the terms of the GNU Lesser General Public
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8 | 10ec5117 | Alexander Graf | * License as published by the Free Software Foundation; either
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9 | 10ec5117 | Alexander Graf | * version 2 of the License, or (at your option) any later version.
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10 | 10ec5117 | Alexander Graf | *
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11 | 10ec5117 | Alexander Graf | * This library is distributed in the hope that it will be useful,
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12 | 10ec5117 | Alexander Graf | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | 10ec5117 | Alexander Graf | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | 10ec5117 | Alexander Graf | * Lesser General Public License for more details.
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15 | 10ec5117 | Alexander Graf | *
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16 | 10ec5117 | Alexander Graf | * You should have received a copy of the GNU Lesser General Public
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17 | 10ec5117 | Alexander Graf | * License along with this library; if not, write to the Free Software
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18 | 10ec5117 | Alexander Graf | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
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19 | 10ec5117 | Alexander Graf | */
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20 | 10ec5117 | Alexander Graf | |
21 | 10ec5117 | Alexander Graf | #include <stdio.h> |
22 | 10ec5117 | Alexander Graf | #include <stdlib.h> |
23 | 10ec5117 | Alexander Graf | #include <string.h> |
24 | 10ec5117 | Alexander Graf | |
25 | 10ec5117 | Alexander Graf | #include "cpu.h" |
26 | 10ec5117 | Alexander Graf | #include "exec-all.h" |
27 | 10ec5117 | Alexander Graf | #include "gdbstub.h" |
28 | 10ec5117 | Alexander Graf | #include "qemu-common.h" |
29 | 10ec5117 | Alexander Graf | |
30 | 10c339a0 | Alexander Graf | #include <linux/kvm.h> |
31 | 10c339a0 | Alexander Graf | #include "kvm.h" |
32 | 10c339a0 | Alexander Graf | |
33 | 10ec5117 | Alexander Graf | CPUS390XState *cpu_s390x_init(const char *cpu_model) |
34 | 10ec5117 | Alexander Graf | { |
35 | 10ec5117 | Alexander Graf | CPUS390XState *env; |
36 | 10ec5117 | Alexander Graf | static int inited = 0; |
37 | 10ec5117 | Alexander Graf | |
38 | 10ec5117 | Alexander Graf | env = qemu_mallocz(sizeof(CPUS390XState));
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39 | 10ec5117 | Alexander Graf | cpu_exec_init(env); |
40 | 10ec5117 | Alexander Graf | if (!inited) {
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41 | 10ec5117 | Alexander Graf | inited = 1;
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42 | 10ec5117 | Alexander Graf | } |
43 | 10ec5117 | Alexander Graf | |
44 | 10ec5117 | Alexander Graf | env->cpu_model_str = cpu_model; |
45 | 10ec5117 | Alexander Graf | cpu_reset(env); |
46 | 10ec5117 | Alexander Graf | qemu_init_vcpu(env); |
47 | 10ec5117 | Alexander Graf | return env;
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48 | 10ec5117 | Alexander Graf | } |
49 | 10ec5117 | Alexander Graf | |
50 | 10ec5117 | Alexander Graf | target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr) |
51 | 10ec5117 | Alexander Graf | { |
52 | 10ec5117 | Alexander Graf | return addr;
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53 | 10ec5117 | Alexander Graf | } |
54 | 10ec5117 | Alexander Graf | |
55 | 10ec5117 | Alexander Graf | void cpu_reset(CPUS390XState *env)
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56 | 10ec5117 | Alexander Graf | { |
57 | 10ec5117 | Alexander Graf | if (qemu_loglevel_mask(CPU_LOG_RESET)) {
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58 | 10ec5117 | Alexander Graf | qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
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59 | 10ec5117 | Alexander Graf | log_cpu_state(env, 0);
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60 | 10ec5117 | Alexander Graf | } |
61 | 10ec5117 | Alexander Graf | |
62 | 10ec5117 | Alexander Graf | memset(env, 0, offsetof(CPUS390XState, breakpoints));
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63 | 10ec5117 | Alexander Graf | /* FIXME: reset vector? */
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64 | 10ec5117 | Alexander Graf | tlb_flush(env, 1);
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65 | 10ec5117 | Alexander Graf | } |
66 | 10c339a0 | Alexander Graf | |
67 | 10c339a0 | Alexander Graf | #ifndef CONFIG_USER_ONLY
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68 | 10c339a0 | Alexander Graf | |
69 | 10c339a0 | Alexander Graf | int cpu_s390x_handle_mmu_fault (CPUState *env, target_ulong address, int rw, |
70 | 10c339a0 | Alexander Graf | int mmu_idx, int is_softmmu) |
71 | 10c339a0 | Alexander Graf | { |
72 | 10c339a0 | Alexander Graf | target_ulong phys; |
73 | 10c339a0 | Alexander Graf | int prot;
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74 | 10c339a0 | Alexander Graf | |
75 | 10c339a0 | Alexander Graf | /* XXX: implement mmu */
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76 | 10c339a0 | Alexander Graf | |
77 | 10c339a0 | Alexander Graf | phys = address; |
78 | 10c339a0 | Alexander Graf | prot = PAGE_READ | PAGE_WRITE; |
79 | 10c339a0 | Alexander Graf | |
80 | 10c339a0 | Alexander Graf | return tlb_set_page(env, address & TARGET_PAGE_MASK,
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81 | 10c339a0 | Alexander Graf | phys & TARGET_PAGE_MASK, prot, |
82 | 10c339a0 | Alexander Graf | mmu_idx, is_softmmu); |
83 | 10c339a0 | Alexander Graf | } |
84 | 10c339a0 | Alexander Graf | #endif /* CONFIG_USER_ONLY */ |