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Annotation of qemu/target-s390x/helper.c, revision 1.1

1.1     ! root        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, write to the Free Software
        !            18:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA  02110-1301 USA
        !            19:  */
        !            20: 
        !            21: #include <stdio.h>
        !            22: #include <stdlib.h>
        !            23: #include <string.h>
        !            24: 
        !            25: #include "cpu.h"
        !            26: #include "exec-all.h"
        !            27: #include "gdbstub.h"
        !            28: #include "qemu-common.h"
        !            29: 
        !            30: #include <linux/kvm.h>
        !            31: #include "kvm.h"
        !            32: 
        !            33: CPUS390XState *cpu_s390x_init(const char *cpu_model)
        !            34: {
        !            35:     CPUS390XState *env;
        !            36:     static int inited = 0;
        !            37: 
        !            38:     env = qemu_mallocz(sizeof(CPUS390XState));
        !            39:     cpu_exec_init(env);
        !            40:     if (!inited) {
        !            41:         inited = 1;
        !            42:     }
        !            43: 
        !            44:     env->cpu_model_str = cpu_model;
        !            45:     cpu_reset(env);
        !            46:     qemu_init_vcpu(env);
        !            47:     return env;
        !            48: }
        !            49: 
        !            50: target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
        !            51: {
        !            52:     return addr;
        !            53: }
        !            54: 
        !            55: void cpu_reset(CPUS390XState *env)
        !            56: {
        !            57:     if (qemu_loglevel_mask(CPU_LOG_RESET)) {
        !            58:         qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
        !            59:         log_cpu_state(env, 0);
        !            60:     }
        !            61: 
        !            62:     memset(env, 0, offsetof(CPUS390XState, breakpoints));
        !            63:     /* FIXME: reset vector? */
        !            64:     tlb_flush(env, 1);
        !            65: }
        !            66: 
        !            67: #ifndef CONFIG_USER_ONLY
        !            68: 
        !            69: int cpu_s390x_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
        !            70:                                 int mmu_idx, int is_softmmu)
        !            71: {
        !            72:     target_ulong phys;
        !            73:     int prot;
        !            74: 
        !            75:     /* XXX: implement mmu */
        !            76: 
        !            77:     phys = address;
        !            78:     prot = PAGE_READ | PAGE_WRITE;
        !            79: 
        !            80:     return tlb_set_page(env, address & TARGET_PAGE_MASK,
        !            81:                         phys & TARGET_PAGE_MASK, prot,
        !            82:                         mmu_idx, is_softmmu);
        !            83: }
        !            84: #endif /* CONFIG_USER_ONLY */

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