new file mode 100644
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * LoongArch IPI interrupt header files
+ *
+ * Copyright (C) 2024 Loongson Technology Corporation Limited
+ */
+
+#ifndef HW_LOONGARCH_IPI_H
+#define HW_LOONGARCH_IPI_H
+
+#include "qom/object.h"
+#include "hw/intc/loongson_ipi_common.h"
+
+#define TYPE_LOONGARCH_IPI "loongarch_ipi"
+OBJECT_DECLARE_TYPE(LoongarchIPIState, LoongarchIPIClass, LOONGARCH_IPI)
+
+struct LoongarchIPIState {
+ LoongsonIPICommonState parent_obj;
+};
+
+struct LoongarchIPIClass {
+ LoongsonIPICommonClass parent_class;
+};
+
+#endif
new file mode 100644
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * LoongArch IPI interrupt support
+ *
+ * Copyright (C) 2024 Loongson Technology Corporation Limited
+ */
+
+#include "qemu/osdep.h"
+#include "hw/boards.h"
+#include "hw/intc/loongarch_ipi.h"
+#include "target/loongarch/cpu.h"
+
+static AddressSpace *get_iocsr_as(CPUState *cpu)
+{
+ return LOONGARCH_CPU(cpu)->env.address_space_iocsr;
+}
+
+static int archid_cmp(const void *a, const void *b)
+{
+ CPUArchId *archid_a = (CPUArchId *)a;
+ CPUArchId *archid_b = (CPUArchId *)b;
+
+ return archid_a->arch_id - archid_b->arch_id;
+}
+
+static CPUArchId *find_cpu_by_archid(MachineState *ms, uint32_t id)
+{
+ CPUArchId apic_id, *found_cpu;
+
+ apic_id.arch_id = id;
+ found_cpu = bsearch(&apic_id, ms->possible_cpus->cpus,
+ ms->possible_cpus->len,
+ sizeof(*ms->possible_cpus->cpus),
+ archid_cmp);
+
+ return found_cpu;
+}
+
+static CPUState *loongarch_cpu_by_arch_id(int64_t arch_id)
+{
+ MachineState *machine = MACHINE(qdev_get_machine());
+ CPUArchId *archid;
+
+ archid = find_cpu_by_archid(machine, arch_id);
+ if (archid) {
+ return CPU(archid->cpu);
+ }
+
+ return NULL;
+}
+
+static void loongarch_ipi_class_init(ObjectClass *klass, void *data)
+{
+ LoongsonIPICommonClass *licc = LOONGSON_IPI_COMMON_CLASS(klass);
+
+ licc->get_iocsr_as = get_iocsr_as;
+ licc->cpu_by_arch_id = loongarch_cpu_by_arch_id;
+}
+
+static const TypeInfo loongarch_ipi_types[] = {
+ {
+ .name = TYPE_LOONGARCH_IPI,
+ .parent = TYPE_LOONGSON_IPI_COMMON,
+ .class_init = loongarch_ipi_class_init,
+ }
+};
+
+DEFINE_TYPES(loongarch_ipi_types)
@@ -94,6 +94,10 @@ config LOONGSON_IPI
bool
select LOONGSON_IPI_COMMON
+config LOONGARCH_IPI
+ bool
+ select LOONGSON_IPI_COMMON
+
config LOONGARCH_PCH_PIC
bool
select UNIMP
@@ -71,6 +71,7 @@ specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_XIVE'],
specific_ss.add(when: 'CONFIG_M68K_IRQC', if_true: files('m68k_irqc.c'))
specific_ss.add(when: 'CONFIG_LOONGSON_IPI_COMMON', if_true: files('loongson_ipi_common.c'))
specific_ss.add(when: 'CONFIG_LOONGSON_IPI', if_true: files('loongson_ipi.c'))
+specific_ss.add(when: 'CONFIG_LOONGARCH_IPI', if_true: files('loongarch_ipi.c'))
specific_ss.add(when: 'CONFIG_LOONGARCH_PCH_PIC', if_true: files('loongarch_pch_pic.c'))
specific_ss.add(when: 'CONFIG_LOONGARCH_PCH_MSI', if_true: files('loongarch_pch_msi.c'))
specific_ss.add(when: 'CONFIG_LOONGARCH_EXTIOI', if_true: files('loongarch_extioi.c'))