mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-11-02 21:32:52 +00:00
3ce8b2bcbf
cpu_{save,load} were no-ops, so de facto it is unmigratable and no
backwards compatibility to keep. Therefore mark the MicroBlazeCPU as
unmigratable at device level the QOM way and suppress "cpu_common"
VMState registration by dropping CPU_SAVE_VERSION.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Juan Quintela <quintela@redhat.com>
129 lines
3.9 KiB
C
129 lines
3.9 KiB
C
/*
|
|
* QEMU MicroBlaze CPU
|
|
*
|
|
* Copyright (c) 2009 Edgar E. Iglesias
|
|
* Copyright (c) 2009-2012 PetaLogix Qld Pty Ltd.
|
|
* Copyright (c) 2012 SUSE LINUX Products GmbH
|
|
*
|
|
* 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 2.1 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/lgpl-2.1.html>
|
|
*/
|
|
|
|
#include "cpu.h"
|
|
#include "qemu-common.h"
|
|
#include "migration/vmstate.h"
|
|
|
|
|
|
/* CPUClass::reset() */
|
|
static void mb_cpu_reset(CPUState *s)
|
|
{
|
|
MicroBlazeCPU *cpu = MICROBLAZE_CPU(s);
|
|
MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_GET_CLASS(cpu);
|
|
CPUMBState *env = &cpu->env;
|
|
|
|
if (qemu_loglevel_mask(CPU_LOG_RESET)) {
|
|
qemu_log("CPU Reset (CPU %d)\n", s->cpu_index);
|
|
log_cpu_state(env, 0);
|
|
}
|
|
|
|
mcc->parent_reset(s);
|
|
|
|
memset(env, 0, offsetof(CPUMBState, breakpoints));
|
|
env->res_addr = RES_ADDR_NONE;
|
|
tlb_flush(env, 1);
|
|
|
|
/* Disable stack protector. */
|
|
env->shr = ~0;
|
|
|
|
env->pvr.regs[0] = PVR0_PVR_FULL_MASK \
|
|
| PVR0_USE_BARREL_MASK \
|
|
| PVR0_USE_DIV_MASK \
|
|
| PVR0_USE_HW_MUL_MASK \
|
|
| PVR0_USE_EXC_MASK \
|
|
| PVR0_USE_ICACHE_MASK \
|
|
| PVR0_USE_DCACHE_MASK \
|
|
| PVR0_USE_MMU \
|
|
| (0xb << 8);
|
|
env->pvr.regs[2] = PVR2_D_OPB_MASK \
|
|
| PVR2_D_LMB_MASK \
|
|
| PVR2_I_OPB_MASK \
|
|
| PVR2_I_LMB_MASK \
|
|
| PVR2_USE_MSR_INSTR \
|
|
| PVR2_USE_PCMP_INSTR \
|
|
| PVR2_USE_BARREL_MASK \
|
|
| PVR2_USE_DIV_MASK \
|
|
| PVR2_USE_HW_MUL_MASK \
|
|
| PVR2_USE_MUL64_MASK \
|
|
| PVR2_USE_FPU_MASK \
|
|
| PVR2_USE_FPU2_MASK \
|
|
| PVR2_FPU_EXC_MASK \
|
|
| 0;
|
|
env->pvr.regs[10] = 0x0c000000; /* Default to spartan 3a dsp family. */
|
|
env->pvr.regs[11] = PVR11_USE_MMU | (16 << 17);
|
|
|
|
#if defined(CONFIG_USER_ONLY)
|
|
/* start in user mode with interrupts enabled. */
|
|
env->sregs[SR_MSR] = MSR_EE | MSR_IE | MSR_VM | MSR_UM;
|
|
env->pvr.regs[10] = 0x0c000000; /* Spartan 3a dsp. */
|
|
#else
|
|
env->sregs[SR_MSR] = 0;
|
|
mmu_init(&env->mmu);
|
|
env->mmu.c_mmu = 3;
|
|
env->mmu.c_mmu_tlb_access = 3;
|
|
env->mmu.c_mmu_zones = 16;
|
|
#endif
|
|
}
|
|
|
|
static void mb_cpu_initfn(Object *obj)
|
|
{
|
|
MicroBlazeCPU *cpu = MICROBLAZE_CPU(obj);
|
|
CPUMBState *env = &cpu->env;
|
|
|
|
cpu_exec_init(env);
|
|
|
|
set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
|
|
}
|
|
|
|
static const VMStateDescription vmstate_mb_cpu = {
|
|
.name = "cpu",
|
|
.unmigratable = 1,
|
|
};
|
|
|
|
static void mb_cpu_class_init(ObjectClass *oc, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(oc);
|
|
CPUClass *cc = CPU_CLASS(oc);
|
|
MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_CLASS(oc);
|
|
|
|
mcc->parent_reset = cc->reset;
|
|
cc->reset = mb_cpu_reset;
|
|
|
|
dc->vmsd = &vmstate_mb_cpu;
|
|
}
|
|
|
|
static const TypeInfo mb_cpu_type_info = {
|
|
.name = TYPE_MICROBLAZE_CPU,
|
|
.parent = TYPE_CPU,
|
|
.instance_size = sizeof(MicroBlazeCPU),
|
|
.instance_init = mb_cpu_initfn,
|
|
.class_size = sizeof(MicroBlazeCPUClass),
|
|
.class_init = mb_cpu_class_init,
|
|
};
|
|
|
|
static void mb_cpu_register_types(void)
|
|
{
|
|
type_register_static(&mb_cpu_type_info);
|
|
}
|
|
|
|
type_init(mb_cpu_register_types)
|