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Annotation of qemu/target-s390x/helper.c, revision 1.1.1.2

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
1.1.1.2 ! root       17:  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
1.1       root       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: 
1.1.1.2 ! root       61: target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
        !            62: {
        !            63:     return 0;
        !            64: }
        !            65: 
1.1       root       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;
1.1.1.2 ! root       77:     prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
1.1       root       78: 
1.1.1.2 ! root       79:     tlb_set_page(env, address & TARGET_PAGE_MASK,
        !            80:                  phys & TARGET_PAGE_MASK, prot,
        !            81:                  mmu_idx, TARGET_PAGE_SIZE);
        !            82:     return 0;
1.1       root       83: }
                     84: #endif /* CONFIG_USER_ONLY */

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