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/*
* S/390 helpers
*
* Copyright (c) 2009 Ulrich Hecht
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "cpu.h"
#include "exec-all.h"
#include "gdbstub.h"
#include "qemu-common.h"
#include <linux/kvm.h>
#include "kvm.h"
CPUS390XState *cpu_s390x_init(const char *cpu_model)
{
CPUS390XState *env;
static int inited = 0;
env = qemu_mallocz(sizeof(CPUS390XState));
cpu_exec_init(env);
if (!inited) {
inited = 1;
}
env->cpu_model_str = cpu_model;
cpu_reset(env);
qemu_init_vcpu(env);
return env;
}
void cpu_reset(CPUS390XState *env)
{
if (qemu_loglevel_mask(CPU_LOG_RESET)) {
qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
log_cpu_state(env, 0);
}
memset(env, 0, offsetof(CPUS390XState, breakpoints));
/* FIXME: reset vector? */
tlb_flush(env, 1);
}
#ifndef CONFIG_USER_ONLY
int cpu_s390x_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
int mmu_idx, int is_softmmu)
{
target_ulong phys;
int prot;
/* XXX: implement mmu */
phys = address;
prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
tlb_set_page(env, address & TARGET_PAGE_MASK,
phys & TARGET_PAGE_MASK, prot,
mmu_idx, TARGET_PAGE_SIZE);
return 0;
}
#endif /* CONFIG_USER_ONLY */
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