mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-28 05:50:37 +00:00
14a10fc399
Commit c643bed99 moved qemu_init_vcpu() calls to common CPUState code.
This causes x86 cpu-add to fail with "KVM: setting VAPIC address failed".
The reason for the failure is that CPUClass::kvm_fd is not yet
initialized in the following call graph:
->x86_cpu_realizefn
->x86_cpu_apic_realize
->qdev_init
->device_set_realized
->device_reset (hotplugged == 1)
->apic_reset_common
->vapic_base_update
->kvm_apic_vapic_base_update
This causes attempted KVM vCPU ioctls to fail.
By contrast, in the non-hotplug case the APIC is reset much later, when
the vCPU is already initialized.
As a quick and safe solution, move the qemu_init_vcpu() call back into
the targets' realize functions.
Reported-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Acked-by: Igor Mammedov <imammedo@redhat.com> (for i386)
Tested-by: Jia Liu <proljc@gmail.com> (for openrisc)
Signed-off-by: Andreas Färber <afaerber@suse.de>
117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
/*
|
|
* QEMU LatticeMico32 CPU
|
|
*
|
|
* 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"
|
|
|
|
|
|
static void lm32_cpu_set_pc(CPUState *cs, vaddr value)
|
|
{
|
|
LM32CPU *cpu = LM32_CPU(cs);
|
|
|
|
cpu->env.pc = value;
|
|
}
|
|
|
|
/* CPUClass::reset() */
|
|
static void lm32_cpu_reset(CPUState *s)
|
|
{
|
|
LM32CPU *cpu = LM32_CPU(s);
|
|
LM32CPUClass *lcc = LM32_CPU_GET_CLASS(cpu);
|
|
CPULM32State *env = &cpu->env;
|
|
|
|
lcc->parent_reset(s);
|
|
|
|
/* reset cpu state */
|
|
memset(env, 0, offsetof(CPULM32State, breakpoints));
|
|
|
|
tlb_flush(env, 1);
|
|
}
|
|
|
|
static void lm32_cpu_realizefn(DeviceState *dev, Error **errp)
|
|
{
|
|
CPUState *cs = CPU(dev);
|
|
LM32CPUClass *lcc = LM32_CPU_GET_CLASS(dev);
|
|
|
|
cpu_reset(cs);
|
|
|
|
qemu_init_vcpu(cs);
|
|
|
|
lcc->parent_realize(dev, errp);
|
|
}
|
|
|
|
static void lm32_cpu_initfn(Object *obj)
|
|
{
|
|
CPUState *cs = CPU(obj);
|
|
LM32CPU *cpu = LM32_CPU(obj);
|
|
CPULM32State *env = &cpu->env;
|
|
static bool tcg_initialized;
|
|
|
|
cs->env_ptr = env;
|
|
cpu_exec_init(env);
|
|
|
|
env->flags = 0;
|
|
|
|
if (tcg_enabled() && !tcg_initialized) {
|
|
tcg_initialized = true;
|
|
lm32_translate_init();
|
|
}
|
|
}
|
|
|
|
static void lm32_cpu_class_init(ObjectClass *oc, void *data)
|
|
{
|
|
LM32CPUClass *lcc = LM32_CPU_CLASS(oc);
|
|
CPUClass *cc = CPU_CLASS(oc);
|
|
DeviceClass *dc = DEVICE_CLASS(oc);
|
|
|
|
lcc->parent_realize = dc->realize;
|
|
dc->realize = lm32_cpu_realizefn;
|
|
|
|
lcc->parent_reset = cc->reset;
|
|
cc->reset = lm32_cpu_reset;
|
|
|
|
cc->do_interrupt = lm32_cpu_do_interrupt;
|
|
cc->dump_state = lm32_cpu_dump_state;
|
|
cc->set_pc = lm32_cpu_set_pc;
|
|
cc->gdb_read_register = lm32_cpu_gdb_read_register;
|
|
cc->gdb_write_register = lm32_cpu_gdb_write_register;
|
|
#ifndef CONFIG_USER_ONLY
|
|
cc->get_phys_page_debug = lm32_cpu_get_phys_page_debug;
|
|
cc->vmsd = &vmstate_lm32_cpu;
|
|
#endif
|
|
cc->gdb_num_core_regs = 32 + 7;
|
|
}
|
|
|
|
static const TypeInfo lm32_cpu_type_info = {
|
|
.name = TYPE_LM32_CPU,
|
|
.parent = TYPE_CPU,
|
|
.instance_size = sizeof(LM32CPU),
|
|
.instance_init = lm32_cpu_initfn,
|
|
.abstract = false,
|
|
.class_size = sizeof(LM32CPUClass),
|
|
.class_init = lm32_cpu_class_init,
|
|
};
|
|
|
|
static void lm32_cpu_register_types(void)
|
|
{
|
|
type_register_static(&lm32_cpu_type_info);
|
|
}
|
|
|
|
type_init(lm32_cpu_register_types)
|