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/*
* x86 HVF CPU type initialization
*
* Copyright 2021 SUSE LLC
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "cpu.h"
#include "host-cpu.h"
#include "qapi/error.h"
#include "sysemu/sysemu.h"
#include "hw/boards.h"
#include "sysemu/hvf.h"
#include "hw/core/accel-cpu.h"
static void hvf_cpu_max_instance_init(X86CPU *cpu)
{
CPUX86State *env = &cpu->env;
host_cpu_max_instance_init(cpu);
env->cpuid_min_level =
hvf_get_supported_cpuid(0x0, 0, R_EAX);
env->cpuid_min_xlevel =
hvf_get_supported_cpuid(0x80000000, 0, R_EAX);
env->cpuid_min_xlevel2 =
hvf_get_supported_cpuid(0xC0000000, 0, R_EAX);
}
static void hvf_cpu_xsave_init(void)
{
static bool first = true;
int i;
if (!first) {
return;
}
first = false;
/* x87 and SSE states are in the legacy region of the XSAVE area. */
x86_ext_save_areas[XSTATE_FP_BIT].offset = 0;
x86_ext_save_areas[XSTATE_SSE_BIT].offset = 0;
for (i = XSTATE_SSE_BIT + 1; i < XSAVE_STATE_AREA_COUNT; i++) {
ExtSaveArea *esa = &x86_ext_save_areas[i];
if (esa->size) {
int sz = hvf_get_supported_cpuid(0xd, i, R_EAX);
if (sz != 0) {
assert(esa->size == sz);
esa->offset = hvf_get_supported_cpuid(0xd, i, R_EBX);
}
}
}
}
static void hvf_cpu_instance_init(CPUState *cs)
{
X86CPU *cpu = X86_CPU(cs);
host_cpu_instance_init(cpu);
/* Special cases not set in the X86CPUDefinition structs: */
/* TODO: in-kernel irqchip for hvf */
if (cpu->max_features) {
hvf_cpu_max_instance_init(cpu);
}
hvf_cpu_xsave_init();
}
static void hvf_cpu_accel_class_init(ObjectClass *oc, void *data)
{
AccelCPUClass *acc = ACCEL_CPU_CLASS(oc);
acc->cpu_realizefn = host_cpu_realizefn;
acc->cpu_instance_init = hvf_cpu_instance_init;
}
static const TypeInfo hvf_cpu_accel_type_info = {
.name = ACCEL_CPU_NAME("hvf"),
.parent = TYPE_ACCEL_CPU,
.class_init = hvf_cpu_accel_class_init,
.abstract = true,
};
static void hvf_cpu_accel_register_types(void)
{
type_register_static(&hvf_cpu_accel_type_info);
}
type_init(hvf_cpu_accel_register_types);
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