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-rw-r--r--hw/intc/Makefile.objs1
-rw-r--r--hw/intc/arm_gic_kvm.c17
-rw-r--r--hw/intc/arm_gicv3_its_kvm.c20
-rw-r--r--hw/intc/arm_gicv3_kvm.c19
-rw-r--r--hw/intc/nios2_iic.c103
-rw-r--r--hw/intc/s390_flic_kvm.c8
6 files changed, 146 insertions, 22 deletions
diff --git a/hw/intc/Makefile.objs b/hw/intc/Makefile.objs
index 2f44a2da26..8948106ac4 100644
--- a/hw/intc/Makefile.objs
+++ b/hw/intc/Makefile.objs
@@ -41,3 +41,4 @@ obj-$(CONFIG_S390_FLIC_KVM) += s390_flic_kvm.o
obj-$(CONFIG_ASPEED_SOC) += aspeed_vic.o
obj-$(CONFIG_ARM_GIC) += arm_gicv3_cpuif.o
obj-$(CONFIG_MIPS_CPS) += mips_gic.o
+obj-$(CONFIG_NIOS2) += nios2_iic.o
diff --git a/hw/intc/arm_gic_kvm.c b/hw/intc/arm_gic_kvm.c
index 11729ee902..ec952ece93 100644
--- a/hw/intc/arm_gic_kvm.c
+++ b/hw/intc/arm_gic_kvm.c
@@ -510,6 +510,17 @@ static void kvm_arm_gic_realize(DeviceState *dev, Error **errp)
return;
}
+ if (!kvm_arm_gic_can_save_restore(s)) {
+ error_setg(&s->migration_blocker, "This operating system kernel does "
+ "not support vGICv2 migration");
+ migrate_add_blocker(s->migration_blocker, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ error_free(s->migration_blocker);
+ return;
+ }
+ }
+
gic_init_irqs_and_mmio(s, kvm_arm_gicv2_set_irq, NULL);
for (i = 0; i < s->num_irq - GIC_INTERNAL; i++) {
@@ -558,12 +569,6 @@ static void kvm_arm_gic_realize(DeviceState *dev, Error **errp)
KVM_VGIC_V2_ADDR_TYPE_CPU,
s->dev_fd);
- if (!kvm_arm_gic_can_save_restore(s)) {
- error_setg(&s->migration_blocker, "This operating system kernel does "
- "not support vGICv2 migration");
- migrate_add_blocker(s->migration_blocker);
- }
-
if (kvm_has_gsi_routing()) {
/* set up irq routing */
kvm_init_irq_routing(kvm_state);
diff --git a/hw/intc/arm_gicv3_its_kvm.c b/hw/intc/arm_gicv3_its_kvm.c
index fc246e0cb5..bd4f3aafc6 100644
--- a/hw/intc/arm_gicv3_its_kvm.c
+++ b/hw/intc/arm_gicv3_its_kvm.c
@@ -56,6 +56,19 @@ static int kvm_its_send_msi(GICv3ITSState *s, uint32_t value, uint16_t devid)
static void kvm_arm_its_realize(DeviceState *dev, Error **errp)
{
GICv3ITSState *s = ARM_GICV3_ITS_COMMON(dev);
+ Error *local_err = NULL;
+
+ /*
+ * Block migration of a KVM GICv3 ITS device: the API for saving and
+ * restoring the state in the kernel is not yet available
+ */
+ error_setg(&s->migration_blocker, "vITS migration is not implemented");
+ migrate_add_blocker(s->migration_blocker, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ error_free(s->migration_blocker);
+ return;
+ }
s->dev_fd = kvm_create_device(kvm_state, KVM_DEV_TYPE_ARM_VGIC_ITS, false);
if (s->dev_fd < 0) {
@@ -73,13 +86,6 @@ static void kvm_arm_its_realize(DeviceState *dev, Error **errp)
gicv3_its_init_mmio(s, NULL);
- /*
- * Block migration of a KVM GICv3 ITS device: the API for saving and
- * restoring the state in the kernel is not yet available
- */
- error_setg(&s->migration_blocker, "vITS migration is not implemented");
- migrate_add_blocker(s->migration_blocker);
-
kvm_msi_use_devid = true;
kvm_gsi_direct_mapping = false;
kvm_msi_via_irqfd_allowed = kvm_irqfds_enabled();
diff --git a/hw/intc/arm_gicv3_kvm.c b/hw/intc/arm_gicv3_kvm.c
index 199a439ccf..d69dc47370 100644
--- a/hw/intc/arm_gicv3_kvm.c
+++ b/hw/intc/arm_gicv3_kvm.c
@@ -103,6 +103,18 @@ static void kvm_arm_gicv3_realize(DeviceState *dev, Error **errp)
gicv3_init_irqs_and_mmio(s, kvm_arm_gicv3_set_irq, NULL);
+ /* Block migration of a KVM GICv3 device: the API for saving and restoring
+ * the state in the kernel is not yet finalised in the kernel or
+ * implemented in QEMU.
+ */
+ error_setg(&s->migration_blocker, "vGICv3 migration is not implemented");
+ migrate_add_blocker(s->migration_blocker, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ error_free(s->migration_blocker);
+ return;
+ }
+
/* Try to create the device via the device control API */
s->dev_fd = kvm_create_device(kvm_state, KVM_DEV_TYPE_ARM_VGIC_V3, false);
if (s->dev_fd < 0) {
@@ -122,13 +134,6 @@ static void kvm_arm_gicv3_realize(DeviceState *dev, Error **errp)
kvm_arm_register_device(&s->iomem_redist, -1, KVM_DEV_ARM_VGIC_GRP_ADDR,
KVM_VGIC_V3_ADDR_TYPE_REDIST, s->dev_fd);
- /* Block migration of a KVM GICv3 device: the API for saving and restoring
- * the state in the kernel is not yet finalised in the kernel or
- * implemented in QEMU.
- */
- error_setg(&s->migration_blocker, "vGICv3 migration is not implemented");
- migrate_add_blocker(s->migration_blocker);
-
if (kvm_has_gsi_routing()) {
/* set up irq routing */
kvm_init_irq_routing(kvm_state);
diff --git a/hw/intc/nios2_iic.c b/hw/intc/nios2_iic.c
new file mode 100644
index 0000000000..818ab1b315
--- /dev/null
+++ b/hw/intc/nios2_iic.c
@@ -0,0 +1,103 @@
+/*
+ * QEMU Altera Internal Interrupt Controller.
+ *
+ * Copyright (c) 2012 Chris Wulff <crwulff@gmail.com>
+ *
+ * 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 "qemu/osdep.h"
+#include "qemu-common.h"
+#include "qapi/error.h"
+
+#include "hw/sysbus.h"
+#include "cpu.h"
+
+#define TYPE_ALTERA_IIC "altera,iic"
+#define ALTERA_IIC(obj) \
+ OBJECT_CHECK(AlteraIIC, (obj), TYPE_ALTERA_IIC)
+
+typedef struct AlteraIIC {
+ SysBusDevice parent_obj;
+ void *cpu;
+ qemu_irq parent_irq;
+} AlteraIIC;
+
+static void update_irq(AlteraIIC *pv)
+{
+ CPUNios2State *env = &((Nios2CPU *)(pv->cpu))->env;
+
+ qemu_set_irq(pv->parent_irq,
+ env->regs[CR_IPENDING] & env->regs[CR_IENABLE]);
+}
+
+static void irq_handler(void *opaque, int irq, int level)
+{
+ AlteraIIC *pv = opaque;
+ CPUNios2State *env = &((Nios2CPU *)(pv->cpu))->env;
+
+ env->regs[CR_IPENDING] &= ~(1 << irq);
+ env->regs[CR_IPENDING] |= !!level << irq;
+
+ update_irq(pv);
+}
+
+static void altera_iic_init(Object *obj)
+{
+ AlteraIIC *pv = ALTERA_IIC(obj);
+
+ qdev_init_gpio_in(DEVICE(pv), irq_handler, 32);
+ sysbus_init_irq(SYS_BUS_DEVICE(obj), &pv->parent_irq);
+}
+
+static Property altera_iic_properties[] = {
+ DEFINE_PROP_PTR("cpu", AlteraIIC, cpu),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void altera_iic_realize(DeviceState *dev, Error **errp)
+{
+ struct AlteraIIC *pv = ALTERA_IIC(dev);
+
+ if (!pv->cpu) {
+ error_setg(errp, "altera,iic: CPU not connected");
+ return;
+ }
+}
+
+static void altera_iic_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->props = altera_iic_properties;
+ /* Reason: pointer property "cpu" */
+ dc->cannot_instantiate_with_device_add_yet = true;
+ dc->realize = altera_iic_realize;
+}
+
+static TypeInfo altera_iic_info = {
+ .name = "altera,iic",
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(AlteraIIC),
+ .instance_init = altera_iic_init,
+ .class_init = altera_iic_class_init,
+};
+
+static void altera_iic_register(void)
+{
+ type_register_static(&altera_iic_info);
+}
+
+type_init(altera_iic_register)
diff --git a/hw/intc/s390_flic_kvm.c b/hw/intc/s390_flic_kvm.c
index c313166fbe..da8e4dfab6 100644
--- a/hw/intc/s390_flic_kvm.c
+++ b/hw/intc/s390_flic_kvm.c
@@ -286,7 +286,8 @@ static void kvm_s390_release_adapter_routes(S390FLICState *fs,
* increase until buffer is sufficient or maxium size is
* reached
*/
-static void kvm_flic_save(QEMUFile *f, void *opaque, size_t size)
+static int kvm_flic_save(QEMUFile *f, void *opaque, size_t size,
+ VMStateField *field, QJSON *vmdesc)
{
KVMS390FLICState *flic = opaque;
int len = FLIC_SAVE_INITIAL_SIZE;
@@ -319,6 +320,8 @@ static void kvm_flic_save(QEMUFile *f, void *opaque, size_t size)
count * sizeof(struct kvm_s390_irq));
}
g_free(buf);
+
+ return 0;
}
/**
@@ -331,7 +334,8 @@ static void kvm_flic_save(QEMUFile *f, void *opaque, size_t size)
* Note: Do nothing when no interrupts where stored
* in QEMUFile
*/
-static int kvm_flic_load(QEMUFile *f, void *opaque, size_t size)
+static int kvm_flic_load(QEMUFile *f, void *opaque, size_t size,
+ VMStateField *field)
{
uint64_t len = 0;
uint64_t count = 0;
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2026-05-21 08:49:28 +0200