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-rw-r--r--hw/s390x/s390-virtio-bus.c18
-rw-r--r--hw/s390x/s390-virtio-bus.h1
-rw-r--r--hw/s390x/virtio-ccw.c29
-rw-r--r--hw/s390x/virtio-ccw.h4
-rw-r--r--hw/virtio/virtio-bus.c18
-rw-r--r--hw/virtio/virtio-mmio.c22
-rw-r--r--hw/virtio/virtio-pci.c17
-rw-r--r--hw/virtio/virtio-pci.h1
-rw-r--r--hw/virtio/virtio.c17
-rw-r--r--include/hw/virtio/virtio-bus.h1
-rw-r--r--include/hw/virtio/virtio.h1
11 files changed, 30 insertions, 99 deletions
diff --git a/hw/s390x/s390-virtio-bus.c b/hw/s390x/s390-virtio-bus.c
index 0e35ac970a..74e27e89b7 100644
--- a/hw/s390x/s390-virtio-bus.c
+++ b/hw/s390x/s390-virtio-bus.c
@@ -139,8 +139,6 @@ static void s390_virtio_device_init(VirtIOS390Device *dev,
bus->dev_offs += dev_len;
- dev->host_features = virtio_bus_get_vdev_features(&dev->bus,
- dev->host_features);
s390_virtio_device_sync(dev);
s390_virtio_reset_idx(dev);
if (dev->qdev.hotplugged) {
@@ -433,7 +431,8 @@ void s390_virtio_device_sync(VirtIOS390Device *dev)
cur_offs += num_vq * VIRTIO_VQCONFIG_LEN;
/* Sync feature bitmap */
- address_space_stl_le(&address_space_memory, cur_offs, dev->host_features,
+ address_space_stl_le(&address_space_memory, cur_offs,
+ dev->vdev->host_features,
MEMTXATTRS_UNSPECIFIED, NULL);
dev->feat_offs = cur_offs + dev->feat_len;
@@ -528,12 +527,6 @@ static void virtio_s390_notify(DeviceState *d, uint16_t vector)
s390_virtio_irq(0, token);
}
-static unsigned virtio_s390_get_features(DeviceState *d)
-{
- VirtIOS390Device *dev = to_virtio_s390_device(d);
- return dev->host_features;
-}
-
/**************** S390 Virtio Bus Device Descriptions *******************/
static void s390_virtio_net_class_init(ObjectClass *klass, void *data)
@@ -626,16 +619,10 @@ static void s390_virtio_busdev_reset(DeviceState *dev)
virtio_reset(_dev->vdev);
}
-static Property virtio_s390_properties[] = {
- DEFINE_VIRTIO_COMMON_FEATURES(VirtIOS390Device, host_features),
- DEFINE_PROP_END_OF_LIST(),
-};
-
static void virtio_s390_device_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
- dc->props = virtio_s390_properties;
dc->realize = s390_virtio_busdev_realize;
dc->bus_type = TYPE_S390_VIRTIO_BUS;
dc->reset = s390_virtio_busdev_reset;
@@ -733,7 +720,6 @@ static void virtio_s390_bus_class_init(ObjectClass *klass, void *data)
BusClass *bus_class = BUS_CLASS(klass);
bus_class->max_dev = 1;
k->notify = virtio_s390_notify;
- k->get_features = virtio_s390_get_features;
}
static const TypeInfo virtio_s390_bus_info = {
diff --git a/hw/s390x/s390-virtio-bus.h b/hw/s390x/s390-virtio-bus.h
index 96b1890b4c..7ad295e68f 100644
--- a/hw/s390x/s390-virtio-bus.h
+++ b/hw/s390x/s390-virtio-bus.h
@@ -92,7 +92,6 @@ struct VirtIOS390Device {
ram_addr_t feat_offs;
uint8_t feat_len;
VirtIODevice *vdev;
- uint32_t host_features;
VirtioBusState bus;
};
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index f5f327c173..6e9f8c164f 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -381,8 +381,8 @@ static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw)
+ sizeof(features.features),
MEMTXATTRS_UNSPECIFIED,
NULL);
- if (features.index < ARRAY_SIZE(dev->host_features)) {
- features.features = dev->host_features[features.index];
+ if (features.index == 0) {
+ features.features = vdev->host_features;
} else {
/* Return zeroes if the guest supports more feature bits. */
features.features = 0;
@@ -417,7 +417,7 @@ static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw)
ccw.cda,
MEMTXATTRS_UNSPECIFIED,
NULL);
- if (features.index < ARRAY_SIZE(dev->host_features)) {
+ if (features.index == 0) {
virtio_set_features(vdev, features.features);
} else {
/*
@@ -1071,14 +1071,6 @@ static void virtio_ccw_notify(DeviceState *d, uint16_t vector)
}
}
-static unsigned virtio_ccw_get_features(DeviceState *d)
-{
- VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
-
- /* Only the first 32 feature bits are used. */
- return dev->host_features[0];
-}
-
static void virtio_ccw_reset(DeviceState *d)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
@@ -1390,14 +1382,12 @@ static void virtio_ccw_device_plugged(DeviceState *d)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
SubchDev *sch = dev->sch;
+ VirtIODevice *vdev = virtio_ccw_get_vdev(sch);
sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus);
- /* Only the first 32 feature bits are used. */
- virtio_add_feature(&dev->host_features[0], VIRTIO_F_NOTIFY_ON_EMPTY);
- virtio_add_feature(&dev->host_features[0], VIRTIO_F_BAD_FEATURE);
- dev->host_features[0] = virtio_bus_get_vdev_features(&dev->bus,
- dev->host_features[0]);
+ virtio_add_feature(&vdev->host_features, VIRTIO_F_NOTIFY_ON_EMPTY);
+ virtio_add_feature(&vdev->host_features, VIRTIO_F_BAD_FEATURE);
css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid,
d->hotplugged, 1);
@@ -1648,16 +1638,10 @@ static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev,
object_unparent(OBJECT(dev));
}
-static Property virtio_ccw_properties[] = {
- DEFINE_VIRTIO_COMMON_FEATURES(VirtioCcwDevice, host_features[0]),
- DEFINE_PROP_END_OF_LIST(),
-};
-
static void virtio_ccw_device_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
- dc->props = virtio_ccw_properties;
dc->realize = virtio_ccw_busdev_realize;
dc->exit = virtio_ccw_busdev_exit;
dc->bus_type = TYPE_VIRTUAL_CSS_BUS;
@@ -1722,7 +1706,6 @@ static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data)
bus_class->max_dev = 1;
k->notify = virtio_ccw_notify;
- k->get_features = virtio_ccw_get_features;
k->vmstate_change = virtio_ccw_vmstate_change;
k->query_guest_notifiers = virtio_ccw_query_guest_notifiers;
k->set_host_notifier = virtio_ccw_set_host_notifier;
diff --git a/hw/s390x/virtio-ccw.h b/hw/s390x/virtio-ccw.h
index 4fceda735a..ad3af7626a 100644
--- a/hw/s390x/virtio-ccw.h
+++ b/hw/s390x/virtio-ccw.h
@@ -68,9 +68,6 @@ typedef struct VirtIOCCWDeviceClass {
int (*exit)(VirtioCcwDevice *dev);
} VirtIOCCWDeviceClass;
-/* Change here if we want to support more feature bits. */
-#define VIRTIO_CCW_FEATURE_SIZE 1
-
/* Performance improves when virtqueue kick processing is decoupled from the
* vcpu thread using ioeventfd for some devices. */
#define VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT 1
@@ -88,7 +85,6 @@ struct VirtioCcwDevice {
DeviceState parent_obj;
SubchDev *sch;
char *bus_id;
- uint32_t host_features[VIRTIO_CCW_FEATURE_SIZE];
VirtioBusState bus;
bool ioeventfd_started;
bool ioeventfd_disabled;
diff --git a/hw/virtio/virtio-bus.c b/hw/virtio/virtio-bus.c
index be886e75af..fac452bd1d 100644
--- a/hw/virtio/virtio-bus.c
+++ b/hw/virtio/virtio-bus.c
@@ -44,12 +44,17 @@ int virtio_bus_device_plugged(VirtIODevice *vdev)
BusState *qbus = BUS(qdev_get_parent_bus(qdev));
VirtioBusState *bus = VIRTIO_BUS(qbus);
VirtioBusClass *klass = VIRTIO_BUS_GET_CLASS(bus);
+ VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
+
DPRINTF("%s: plug device.\n", qbus->name);
if (klass->device_plugged != NULL) {
klass->device_plugged(qbus->parent);
}
+ /* Get the features of the plugged device. */
+ assert(vdc->get_features != NULL);
+ vdev->host_features = vdc->get_features(vdev, vdev->host_features);
return 0;
}
@@ -96,19 +101,6 @@ size_t virtio_bus_get_vdev_config_len(VirtioBusState *bus)
return vdev->config_len;
}
-/* Get the features of the plugged device. */
-uint32_t virtio_bus_get_vdev_features(VirtioBusState *bus,
- uint32_t requested_features)
-{
- VirtIODevice *vdev = virtio_bus_get_device(bus);
- VirtioDeviceClass *k;
-
- assert(vdev != NULL);
- k = VIRTIO_DEVICE_GET_CLASS(vdev);
- assert(k->get_features != NULL);
- return k->get_features(vdev, requested_features);
-}
-
/* Get bad features of the plugged device. */
uint32_t virtio_bus_get_vdev_bad_features(VirtioBusState *bus)
{
diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c
index 10123f34b2..1817a07845 100644
--- a/hw/virtio/virtio-mmio.c
+++ b/hw/virtio/virtio-mmio.c
@@ -80,7 +80,6 @@ typedef struct {
SysBusDevice parent_obj;
MemoryRegion iomem;
qemu_irq irq;
- uint32_t host_features;
/* Guest accessible state needing migration and reset */
uint32_t host_features_sel;
uint32_t guest_features_sel;
@@ -147,7 +146,7 @@ static uint64_t virtio_mmio_read(void *opaque, hwaddr offset, unsigned size)
if (proxy->host_features_sel) {
return 0;
}
- return proxy->host_features;
+ return vdev->host_features;
case VIRTIO_MMIO_QUEUENUMMAX:
if (!virtio_queue_get_num(vdev, vdev->queue_sel)) {
return 0;
@@ -306,13 +305,6 @@ static void virtio_mmio_update_irq(DeviceState *opaque, uint16_t vector)
qemu_set_irq(proxy->irq, level);
}
-static unsigned int virtio_mmio_get_features(DeviceState *opaque)
-{
- VirtIOMMIOProxy *proxy = VIRTIO_MMIO(opaque);
-
- return proxy->host_features;
-}
-
static int virtio_mmio_load_config(DeviceState *opaque, QEMUFile *f)
{
VirtIOMMIOProxy *proxy = VIRTIO_MMIO(opaque);
@@ -348,10 +340,9 @@ static void virtio_mmio_reset(DeviceState *d)
static void virtio_mmio_device_plugged(DeviceState *opaque)
{
VirtIOMMIOProxy *proxy = VIRTIO_MMIO(opaque);
+ VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- virtio_add_feature(&proxy->host_features, VIRTIO_F_NOTIFY_ON_EMPTY);
- proxy->host_features = virtio_bus_get_vdev_features(&proxy->bus,
- proxy->host_features);
+ virtio_add_feature(&vdev->host_features, VIRTIO_F_NOTIFY_ON_EMPTY);
}
static void virtio_mmio_realizefn(DeviceState *d, Error **errp)
@@ -367,16 +358,10 @@ static void virtio_mmio_realizefn(DeviceState *d, Error **errp)
sysbus_init_mmio(sbd, &proxy->iomem);
}
-static Property virtio_mmio_properties[] = {
- DEFINE_VIRTIO_COMMON_FEATURES(VirtIOMMIOProxy, host_features),
- DEFINE_PROP_END_OF_LIST(),
-};
-
static void virtio_mmio_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
- dc->props = virtio_mmio_properties;
dc->realize = virtio_mmio_realizefn;
dc->reset = virtio_mmio_reset;
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
@@ -399,7 +384,6 @@ static void virtio_mmio_bus_class_init(ObjectClass *klass, void *data)
k->notify = virtio_mmio_update_irq;
k->save_config = virtio_mmio_save_config;
k->load_config = virtio_mmio_load_config;
- k->get_features = virtio_mmio_get_features;
k->device_plugged = virtio_mmio_device_plugged;
k->has_variable_vring_alignment = true;
bus_class->max_dev = 1;
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index c931790dd7..8ea723106d 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -306,7 +306,7 @@ static uint32_t virtio_ioport_read(VirtIOPCIProxy *proxy, uint32_t addr)
switch (addr) {
case VIRTIO_PCI_HOST_FEATURES:
- ret = proxy->host_features;
+ ret = vdev->host_features;
break;
case VIRTIO_PCI_GUEST_FEATURES:
ret = vdev->guest_features;
@@ -434,12 +434,6 @@ static void virtio_write_config(PCIDevice *pci_dev, uint32_t address,
}
}
-static unsigned virtio_pci_get_features(DeviceState *d)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
- return proxy->host_features;
-}
-
static int kvm_virtio_pci_vq_vector_use(VirtIOPCIProxy *proxy,
unsigned int queue_no,
unsigned int vector,
@@ -924,6 +918,7 @@ static void virtio_pci_device_plugged(DeviceState *d)
VirtioBusState *bus = &proxy->bus;
uint8_t *config;
uint32_t size;
+ VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
config = proxy->pci_dev.config;
if (proxy->class_code) {
@@ -958,10 +953,8 @@ static void virtio_pci_device_plugged(DeviceState *d)
proxy->flags &= ~VIRTIO_PCI_FLAG_USE_IOEVENTFD;
}
- virtio_add_feature(&proxy->host_features, VIRTIO_F_NOTIFY_ON_EMPTY);
- virtio_add_feature(&proxy->host_features, VIRTIO_F_BAD_FEATURE);
- proxy->host_features = virtio_bus_get_vdev_features(bus,
- proxy->host_features);
+ virtio_add_feature(&vdev->host_features, VIRTIO_F_NOTIFY_ON_EMPTY);
+ virtio_add_feature(&vdev->host_features, VIRTIO_F_BAD_FEATURE);
}
static void virtio_pci_device_unplugged(DeviceState *d)
@@ -999,7 +992,6 @@ static void virtio_pci_reset(DeviceState *qdev)
static Property virtio_pci_properties[] = {
DEFINE_PROP_BIT("virtio-pci-bus-master-bug-migration", VirtIOPCIProxy, flags,
VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT, false),
- DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features),
DEFINE_PROP_END_OF_LIST(),
};
@@ -1469,7 +1461,6 @@ static void virtio_pci_bus_class_init(ObjectClass *klass, void *data)
k->load_config = virtio_pci_load_config;
k->save_queue = virtio_pci_save_queue;
k->load_queue = virtio_pci_load_queue;
- k->get_features = virtio_pci_get_features;
k->query_guest_notifiers = virtio_pci_query_guest_notifiers;
k->set_host_notifier = virtio_pci_set_host_notifier;
k->set_guest_notifiers = virtio_pci_set_guest_notifiers;
diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h
index 3bac016999..de394687ef 100644
--- a/hw/virtio/virtio-pci.h
+++ b/hw/virtio/virtio-pci.h
@@ -91,7 +91,6 @@ struct VirtIOPCIProxy {
uint32_t flags;
uint32_t class_code;
uint32_t nvectors;
- uint32_t host_features;
bool ioeventfd_disabled;
bool ioeventfd_started;
VirtIOIRQFD *vector_irqfd;
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 6985e76b64..96d9c6a199 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -970,13 +970,10 @@ void virtio_save(VirtIODevice *vdev, QEMUFile *f)
int virtio_set_features(VirtIODevice *vdev, uint32_t val)
{
- BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
- VirtioBusClass *vbusk = VIRTIO_BUS_GET_CLASS(qbus);
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
- uint32_t supported_features = vbusk->get_features(qbus->parent);
- bool bad = (val & ~supported_features) != 0;
+ bool bad = (val & ~(vdev->host_features)) != 0;
- val &= supported_features;
+ val &= vdev->host_features;
if (k->set_features) {
k->set_features(vdev, val);
}
@@ -990,7 +987,6 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id)
int32_t config_len;
uint32_t num;
uint32_t features;
- uint32_t supported_features;
BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
@@ -1016,9 +1012,8 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id)
qemu_get_be32s(f, &features);
if (virtio_set_features(vdev, features) < 0) {
- supported_features = k->get_features(qbus->parent);
error_report("Features 0x%x unsupported. Allowed features: 0x%x",
- features, supported_features);
+ features, vdev->host_features);
return -1;
}
config_len = qemu_get_be32(f);
@@ -1351,6 +1346,11 @@ static void virtio_device_unrealize(DeviceState *dev, Error **errp)
vdev->bus_name = NULL;
}
+static Property virtio_properties[] = {
+ DEFINE_VIRTIO_COMMON_FEATURES(VirtIODevice, host_features),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
static void virtio_device_class_init(ObjectClass *klass, void *data)
{
/* Set the default value here. */
@@ -1359,6 +1359,7 @@ static void virtio_device_class_init(ObjectClass *klass, void *data)
dc->realize = virtio_device_realize;
dc->unrealize = virtio_device_unrealize;
dc->bus_type = TYPE_VIRTIO_BUS;
+ dc->props = virtio_properties;
}
static const TypeInfo virtio_device_info = {
diff --git a/include/hw/virtio/virtio-bus.h b/include/hw/virtio/virtio-bus.h
index a4588ca4d9..d4ccdf27a3 100644
--- a/include/hw/virtio/virtio-bus.h
+++ b/include/hw/virtio/virtio-bus.h
@@ -47,7 +47,6 @@ typedef struct VirtioBusClass {
int (*load_config)(DeviceState *d, QEMUFile *f);
int (*load_queue)(DeviceState *d, int n, QEMUFile *f);
int (*load_done)(DeviceState *d, QEMUFile *f);
- unsigned (*get_features)(DeviceState *d);
bool (*query_guest_notifiers)(DeviceState *d);
int (*set_guest_notifiers)(DeviceState *d, int nvqs, bool assign);
int (*set_host_notifier)(DeviceState *d, int n, bool assigned);
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index ba74765d0b..f1f9ca5b17 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -74,6 +74,7 @@ struct VirtIODevice
uint8_t isr;
uint16_t queue_sel;
uint32_t guest_features;
+ uint32_t host_features;
size_t config_len;
void *config;
uint16_t config_vector;
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-26 10:53:03 +0000