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Annotation of qemu/target-s390x/helper.c, revision 1.1.1.1

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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