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target/loongarch: cpu: Implement get_arch_id callback

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Implement the callback for getting the architecture-dependent CPU
ID, the cpu ID is physical id described in ACPI MADT table, this
will be used for cpu hotplug.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230824005007.2000525-1-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
This commit is contained in:
Bibo Mao 2023-08-24 08:50:07 +08:00 committed by Song Gao
parent a380c6f11f
commit 14f21f673a
No known key found for this signature in database
GPG Key ID: 40A2FFF239263EDF
3 changed files with 11 additions and 0 deletions
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2
hw/loongarch/virt.c
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@ -810,6 +810,8 @@ static void loongarch_init(MachineState *machine)
cpu = cpu_create(machine->cpu_type);
cpu->cpu_index = i;
machine->possible_cpus->cpus[i].cpu = OBJECT(cpu);
lacpu = LOONGARCH_CPU(cpu);
lacpu->phy_id = machine->possible_cpus->cpus[i].arch_id;
}
fdt_add_cpu_nodes(lams);

8
target/loongarch/cpu.c
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@ -722,6 +722,13 @@ static struct TCGCPUOps loongarch_tcg_ops = {
static const struct SysemuCPUOps loongarch_sysemu_ops = {
.get_phys_page_debug = loongarch_cpu_get_phys_page_debug,
};
static int64_t loongarch_cpu_get_arch_id(CPUState *cs)
{
LoongArchCPU *cpu = LOONGARCH_CPU(cs);
return cpu->phy_id;
}
#endif
static void loongarch_cpu_class_init(ObjectClass *c, void *data)
@ -742,6 +749,7 @@ static void loongarch_cpu_class_init(ObjectClass *c, void *data)
cc->set_pc = loongarch_cpu_set_pc;
cc->get_pc = loongarch_cpu_get_pc;
#ifndef CONFIG_USER_ONLY
cc->get_arch_id = loongarch_cpu_get_arch_id;
dc->vmsd = &vmstate_loongarch_cpu;
cc->sysemu_ops = &loongarch_sysemu_ops;
#endif

1
target/loongarch/cpu.h
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@ -376,6 +376,7 @@ struct ArchCPU {
CPUNegativeOffsetState neg;
CPULoongArchState env;
QEMUTimer timer;
uint32_t phy_id;
/* 'compatible' string for this CPU for Linux device trees */
const char *dtb_compatible;