mirrors/qemu
0
0
Fork 0
mirror of https://github.com/qemu/qemu.git synced 2024-11-24 11:23:43 +08:00
Code Issues Packages Projects Releases Wiki Activity

virtio: remove the function pointer.

Browse Source 
This remove the function pointer in VirtIODevice, and use only
VirtioDeviceClass function pointer.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1366791683-5350-5-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
KONRAD Frederic 2013-04-24 10:21:20 +02:00 committed by Anthony Liguori
parent a2f1078b70
commit 181103cd52
13 changed files with 62 additions and 107 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
hw/9pfs/virtio-9p-device.c
View File

@ -92,9 +92,7 @@ static int virtio_9p_device_init(VirtIODevice *vdev)
s->ctx.uid = -1;
s->ops = fse->ops;
vdev->get_features = virtio_9p_get_features;
s->config_size = sizeof(struct virtio_9p_config) + len;
vdev->get_config = virtio_9p_get_config;
s->fid_list = NULL;
qemu_co_rwlock_init(&s->rename_lock);

5
hw/block/virtio-blk.c
View File

@ -652,11 +652,6 @@ static int virtio_blk_device_init(VirtIODevice *vdev)
virtio_init(vdev, "virtio-blk", VIRTIO_ID_BLOCK,
sizeof(struct virtio_blk_config));
vdev->get_config = virtio_blk_update_config;
vdev->set_config = virtio_blk_set_config;
vdev->get_features = virtio_blk_get_features;
vdev->set_status = virtio_blk_set_status;
vdev->reset = virtio_blk_reset;
s->bs = blk->conf.bs;
s->conf = &blk->conf;
memcpy(&(s->blk), blk, sizeof(struct VirtIOBlkConf));

6
hw/char/virtio-serial-bus.c
View File

@ -954,12 +954,6 @@ static int virtio_serial_device_init(VirtIODevice *vdev)
*/
mark_port_added(vser, 0);
vdev->get_features = get_features;
vdev->get_config = get_config;
vdev->set_config = set_config;
vdev->set_status = set_status;
vdev->reset = vser_reset;
vser->post_load = NULL;
/*

9
hw/net/virtio-net.c
View File

@ -1283,15 +1283,6 @@ static int virtio_net_device_init(VirtIODevice *vdev)
virtio_init(VIRTIO_DEVICE(n), "virtio-net", VIRTIO_ID_NET,
n->config_size);
vdev->get_config = virtio_net_get_config;
vdev->set_config = virtio_net_set_config;
vdev->get_features = virtio_net_get_features;
vdev->set_features = virtio_net_set_features;
vdev->bad_features = virtio_net_bad_features;
vdev->reset = virtio_net_reset;
vdev->set_status = virtio_net_set_status;
vdev->guest_notifier_mask = virtio_net_guest_notifier_mask;
vdev->guest_notifier_pending = virtio_net_guest_notifier_pending;
n->max_queues = MAX(n->nic_conf.queues, 1);
n->vqs = g_malloc0(sizeof(VirtIONetQueue) * n->max_queues);
n->vqs[0].rx_vq = virtio_add_queue(vdev, 256, virtio_net_handle_rx);

9
hw/s390x/s390-virtio-bus.c
View File

@ -136,12 +136,13 @@ static int s390_virtio_device_init(VirtIOS390Device *dev, VirtIODevice *vdev)
dev_len = VIRTIO_DEV_OFFS_CONFIG;
dev_len += s390_virtio_device_num_vq(dev) * VIRTIO_VQCONFIG_LEN;
dev_len += dev->feat_len * 2;
dev_len += vdev->config_len;
dev_len += virtio_bus_get_vdev_config_len(&dev->bus);
bus->dev_offs += dev_len;
virtio_bind_device(vdev, &virtio_s390_bindings, DEVICE(dev));
dev->host_features = vdev->get_features(vdev, dev->host_features);
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) {
@ -368,9 +369,7 @@ void s390_virtio_device_sync(VirtIOS390Device *dev)
cur_offs += dev->feat_len * 2;
/* Sync config space */
if (dev->vdev->get_config) {
dev->vdev->get_config(dev->vdev, dev->vdev->config);
}
virtio_bus_get_vdev_config(&dev->bus, dev->vdev->config);
cpu_physical_memory_write(cur_offs,
dev->vdev->config, dev->vdev->config_len);

14
hw/s390x/virtio-ccw.c
View File

@ -235,9 +235,7 @@ static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw)
features.index = ldub_phys(ccw.cda + sizeof(features.features));
features.features = ldl_le_phys(ccw.cda);
if (features.index < ARRAY_SIZE(dev->host_features)) {
if (dev->vdev->set_features) {
dev->vdev->set_features(dev->vdev, features.features);
}
virtio_bus_set_vdev_features(&dev->bus, features.features);
dev->vdev->guest_features = features.features;
} else {
/*
@ -265,7 +263,7 @@ static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw)
if (!ccw.cda) {
ret = -EFAULT;
} else {
dev->vdev->get_config(dev->vdev, dev->vdev->config);
virtio_bus_get_vdev_config(&dev->bus, dev->vdev->config);
/* XXX config space endianness */
cpu_physical_memory_write(ccw.cda, dev->vdev->config, len);
sch->curr_status.scsw.count = ccw.count - len;
@ -292,9 +290,7 @@ static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw)
/* XXX config space endianness */
memcpy(dev->vdev->config, config, len);
cpu_physical_memory_unmap(config, hw_len, 0, hw_len);
if (dev->vdev->set_config) {
dev->vdev->set_config(dev->vdev, dev->vdev->config);
}
virtio_bus_set_vdev_config(&dev->bus, dev->vdev->config);
sch->curr_status.scsw.count = ccw.count - len;
ret = 0;
}
@ -527,7 +523,9 @@ static int virtio_ccw_device_init(VirtioCcwDevice *dev, VirtIODevice *vdev)
virtio_bind_device(vdev, &virtio_ccw_bindings, DEVICE(dev));
/* Only the first 32 feature bits are used. */
dev->host_features[0] = vdev->get_features(vdev, dev->host_features[0]);
dev->host_features[0] = virtio_bus_get_vdev_features(&dev->bus,
dev->host_features[0]);
dev->host_features[0] |= 0x1 << VIRTIO_F_NOTIFY_ON_EMPTY;
dev->host_features[0] |= 0x1 << VIRTIO_F_BAD_FEATURE;

4
hw/scsi/vhost-scsi.c
View File

@ -217,10 +217,6 @@ static int vhost_scsi_init(VirtIODevice *vdev)
return ret;
}
vdev->get_features = vhost_scsi_get_features;
vdev->set_config = vhost_scsi_set_config;
vdev->set_status = vhost_scsi_set_status;
s->dev.nvqs = VHOST_SCSI_VQ_NUM_FIXED + vs->conf.num_queues;
s->dev.vqs = g_new(struct vhost_virtqueue, s->dev.nvqs);
s->dev.vq_index = 0;

6
hw/scsi/virtio-scsi.c
View File

@ -599,8 +599,6 @@ int virtio_scsi_common_init(VirtIOSCSICommon *s)
s->sense_size = VIRTIO_SCSI_SENSE_SIZE;
s->cdb_size = VIRTIO_SCSI_CDB_SIZE;
vdev->get_config = virtio_scsi_get_config;
s->ctrl_vq = virtio_add_queue(vdev, VIRTIO_SCSI_VQ_SIZE,
virtio_scsi_handle_ctrl);
s->event_vq = virtio_add_queue(vdev, VIRTIO_SCSI_VQ_SIZE,
@ -626,10 +624,6 @@ static int virtio_scsi_device_init(VirtIODevice *vdev)
return ret;
}
vdev->get_features = virtio_scsi_get_features;
vdev->set_config = virtio_scsi_set_config;
vdev->reset = virtio_scsi_reset;
scsi_bus_new(&s->bus, qdev, &virtio_scsi_scsi_info);
if (!qdev->hotplugged) {
scsi_bus_legacy_handle_cmdline(&s->bus);

4
hw/virtio/virtio-balloon.c
View File

@ -344,10 +344,6 @@ static int virtio_balloon_device_init(VirtIODevice *vdev)
virtio_init(vdev, "virtio-balloon", VIRTIO_ID_BALLOON, 8);
vdev->get_config = virtio_balloon_get_config;
vdev->set_config = virtio_balloon_set_config;
vdev->get_features = virtio_balloon_get_features;
ret = qemu_add_balloon_handler(virtio_balloon_to_target,
virtio_balloon_stat, s);

41
hw/virtio/virtio-pci.c
View File

@ -267,10 +267,10 @@ static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val)
switch (addr) {
case VIRTIO_PCI_GUEST_FEATURES:
/* Guest does not negotiate properly? We have to assume nothing. */
if (val & (1 << VIRTIO_F_BAD_FEATURE)) {
val = vdev->bad_features ? vdev->bad_features(vdev) : 0;
}
/* Guest does not negotiate properly? We have to assume nothing. */
if (val & (1 << VIRTIO_F_BAD_FEATURE)) {
val = virtio_bus_get_vdev_bad_features(&proxy->bus);
}
virtio_set_features(vdev, val);
break;
case VIRTIO_PCI_QUEUE_PFN:
@ -535,6 +535,7 @@ static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs)
{
PCIDevice *dev = &proxy->pci_dev;
VirtIODevice *vdev = proxy->vdev;
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
unsigned int vector;
int ret, queue_no;
MSIMessage msg;
@ -555,7 +556,7 @@ static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs)
/* If guest supports masking, set up irqfd now.
* Otherwise, delay until unmasked in the frontend.
*/
if (proxy->vdev->guest_notifier_mask) {
if (k->guest_notifier_mask) {
ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector);
if (ret < 0) {
kvm_virtio_pci_vq_vector_release(proxy, vector);
@ -571,7 +572,7 @@ undo:
if (vector >= msix_nr_vectors_allocated(dev)) {
continue;
}
if (proxy->vdev->guest_notifier_mask) {
if (k->guest_notifier_mask) {
kvm_virtio_pci_irqfd_release(proxy, queue_no, vector);
}
kvm_virtio_pci_vq_vector_release(proxy, vector);
@ -585,6 +586,7 @@ static void kvm_virtio_pci_vector_release(VirtIOPCIProxy *proxy, int nvqs)
VirtIODevice *vdev = proxy->vdev;
unsigned int vector;
int queue_no;
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
for (queue_no = 0; queue_no < nvqs; queue_no++) {
if (!virtio_queue_get_num(vdev, queue_no)) {
@ -597,7 +599,7 @@ static void kvm_virtio_pci_vector_release(VirtIOPCIProxy *proxy, int nvqs)
/* If guest supports masking, clean up irqfd now.
* Otherwise, it was cleaned when masked in the frontend.
*/
if (proxy->vdev->guest_notifier_mask) {
if (k->guest_notifier_mask) {
kvm_virtio_pci_irqfd_release(proxy, queue_no, vector);
}
kvm_virtio_pci_vq_vector_release(proxy, vector);
@ -609,6 +611,7 @@ static int virtio_pci_vq_vector_unmask(VirtIOPCIProxy *proxy,
unsigned int vector,
MSIMessage msg)
{
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(proxy->vdev);
VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no);
EventNotifier *n = virtio_queue_get_guest_notifier(vq);
VirtIOIRQFD *irqfd;
@ -627,11 +630,11 @@ static int virtio_pci_vq_vector_unmask(VirtIOPCIProxy *proxy,
/* If guest supports masking, irqfd is already setup, unmask it.
* Otherwise, set it up now.
*/
if (proxy->vdev->guest_notifier_mask) {
proxy->vdev->guest_notifier_mask(proxy->vdev, queue_no, false);
if (k->guest_notifier_mask) {
k->guest_notifier_mask(proxy->vdev, queue_no, false);
/* Test after unmasking to avoid losing events. */
if (proxy->vdev->guest_notifier_pending &&
proxy->vdev->guest_notifier_pending(proxy->vdev, queue_no)) {
if (k->guest_notifier_pending &&
k->guest_notifier_pending(proxy->vdev, queue_no)) {
event_notifier_set(n);
}
} else {
@ -644,11 +647,13 @@ static void virtio_pci_vq_vector_mask(VirtIOPCIProxy *proxy,
unsigned int queue_no,
unsigned int vector)
{
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(proxy->vdev);
/* If guest supports masking, keep irqfd but mask it.
* Otherwise, clean it up now.
*/
if (proxy->vdev->guest_notifier_mask) {
proxy->vdev->guest_notifier_mask(proxy->vdev, queue_no, true);
if (k->guest_notifier_mask) {
k->guest_notifier_mask(proxy->vdev, queue_no, true);
} else {
kvm_virtio_pci_irqfd_release(proxy, queue_no, vector);
}
@ -708,6 +713,7 @@ static void virtio_pci_vector_poll(PCIDevice *dev,
{
VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev);
VirtIODevice *vdev = proxy->vdev;
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
int queue_no;
unsigned int vector;
EventNotifier *notifier;
@ -724,8 +730,8 @@ static void virtio_pci_vector_poll(PCIDevice *dev,
}
vq = virtio_get_queue(vdev, queue_no);
notifier = virtio_queue_get_guest_notifier(vq);
if (vdev->guest_notifier_pending) {
if (vdev->guest_notifier_pending(vdev, queue_no)) {
if (k->guest_notifier_pending) {
if (k->guest_notifier_pending(vdev, queue_no)) {
msix_set_pending(dev, vector);
}
} else if (event_notifier_test_and_clear(notifier)) {
@ -765,6 +771,7 @@ static int virtio_pci_set_guest_notifiers(DeviceState *d, int nvqs, bool assign)
{
VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
VirtIODevice *vdev = proxy->vdev;
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
int r, n;
bool with_irqfd = msix_enabled(&proxy->pci_dev) &&
kvm_msi_via_irqfd_enabled();
@ -779,7 +786,7 @@ static int virtio_pci_set_guest_notifiers(DeviceState *d, int nvqs, bool assign)
proxy->nvqs_with_notifiers = nvqs;
/* Must unset vector notifier while guest notifier is still assigned */
if ((proxy->vector_irqfd || vdev->guest_notifier_mask) && !assign) {
if ((proxy->vector_irqfd || k->guest_notifier_mask) && !assign) {
msix_unset_vector_notifiers(&proxy->pci_dev);
if (proxy->vector_irqfd) {
kvm_virtio_pci_vector_release(proxy, nvqs);
@ -801,7 +808,7 @@ static int virtio_pci_set_guest_notifiers(DeviceState *d, int nvqs, bool assign)
}
/* Must set vector notifier after guest notifier has been assigned */
if ((with_irqfd || vdev->guest_notifier_mask) && assign) {
if ((with_irqfd || k->guest_notifier_mask) && assign) {
if (with_irqfd) {
proxy->vector_irqfd =
g_malloc0(sizeof(*proxy->vector_irqfd) *

2
hw/virtio/virtio-rng.c
View File

@ -169,8 +169,6 @@ static int virtio_rng_device_init(VirtIODevice *vdev)
vrng->vq = virtio_add_queue(vdev, 8, handle_input);
vdev->get_features = get_features;
assert(vrng->conf.max_bytes <= INT64_MAX);
vrng->quota_remaining = vrng->conf.max_bytes;

43
hw/virtio/virtio.c
View File

@ -519,10 +519,11 @@ void virtio_update_irq(VirtIODevice *vdev)
void virtio_set_status(VirtIODevice *vdev, uint8_t val)
{
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
trace_virtio_set_status(vdev, val);
if (vdev->set_status) {
vdev->set_status(vdev, val);
if (k->set_status) {
k->set_status(vdev, val);
}
vdev->status = val;
}
@ -530,12 +531,14 @@ void virtio_set_status(VirtIODevice *vdev, uint8_t val)
void virtio_reset(void *opaque)
{
VirtIODevice *vdev = opaque;
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
int i;
virtio_set_status(vdev, 0);
if (vdev->reset)
vdev->reset(vdev);
if (k->reset) {
k->reset(vdev);
}
vdev->guest_features = 0;
vdev->queue_sel = 0;
@ -559,9 +562,10 @@ void virtio_reset(void *opaque)
uint32_t virtio_config_readb(VirtIODevice *vdev, uint32_t addr)
{
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
uint8_t val;
vdev->get_config(vdev, vdev->config);
k->get_config(vdev, vdev->config);
if (addr > (vdev->config_len - sizeof(val)))
return (uint32_t)-1;
@ -572,9 +576,10 @@ uint32_t virtio_config_readb(VirtIODevice *vdev, uint32_t addr)
uint32_t virtio_config_readw(VirtIODevice *vdev, uint32_t addr)
{
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
uint16_t val;
vdev->get_config(vdev, vdev->config);
k->get_config(vdev, vdev->config);
if (addr > (vdev->config_len - sizeof(val)))
return (uint32_t)-1;
@ -585,9 +590,10 @@ uint32_t virtio_config_readw(VirtIODevice *vdev, uint32_t addr)
uint32_t virtio_config_readl(VirtIODevice *vdev, uint32_t addr)
{
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
uint32_t val;
vdev->get_config(vdev, vdev->config);
k->get_config(vdev, vdev->config);
if (addr > (vdev->config_len - sizeof(val)))
return (uint32_t)-1;
@ -598,6 +604,7 @@ uint32_t virtio_config_readl(VirtIODevice *vdev, uint32_t addr)
void virtio_config_writeb(VirtIODevice *vdev, uint32_t addr, uint32_t data)
{
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
uint8_t val = data;
if (addr > (vdev->config_len - sizeof(val)))
@ -605,12 +612,14 @@ void virtio_config_writeb(VirtIODevice *vdev, uint32_t addr, uint32_t data)
stb_p(vdev->config + addr, val);
if (vdev->set_config)
vdev->set_config(vdev, vdev->config);
if (k->set_config) {
k->set_config(vdev, vdev->config);
}
}
void virtio_config_writew(VirtIODevice *vdev, uint32_t addr, uint32_t data)
{
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
uint16_t val = data;
if (addr > (vdev->config_len - sizeof(val)))
@ -618,12 +627,14 @@ void virtio_config_writew(VirtIODevice *vdev, uint32_t addr, uint32_t data)
stw_p(vdev->config + addr, val);
if (vdev->set_config)
vdev->set_config(vdev, vdev->config);
if (k->set_config) {
k->set_config(vdev, vdev->config);
}
}
void virtio_config_writel(VirtIODevice *vdev, uint32_t addr, uint32_t data)
{
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
uint32_t val = data;
if (addr > (vdev->config_len - sizeof(val)))
@ -631,8 +642,9 @@ void virtio_config_writel(VirtIODevice *vdev, uint32_t addr, uint32_t data)
stl_p(vdev->config + addr, val);
if (vdev->set_config)
vdev->set_config(vdev, vdev->config);
if (k->set_config) {
k->set_config(vdev, vdev->config);
}
}
void virtio_queue_set_addr(VirtIODevice *vdev, int n, hwaddr addr)
@ -810,13 +822,14 @@ void virtio_save(VirtIODevice *vdev, QEMUFile *f)
int virtio_set_features(VirtIODevice *vdev, uint32_t val)
{
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
uint32_t supported_features =
vdev->binding->get_features(vdev->binding_opaque);
bool bad = (val & ~supported_features) != 0;
val &= supported_features;
if (vdev->set_features) {
vdev->set_features(vdev, val);
if (k->set_features) {
k->set_features(vdev, val);
}
vdev->guest_features = val;
return bad ? -1 : 0;

24
include/hw/virtio/virtio.h
View File

@ -128,30 +128,6 @@ struct VirtIODevice
void *config;
uint16_t config_vector;
int nvectors;
/*
* Function pointers will be removed at the end of the series as they are in
* VirtioDeviceClass.
*/
uint32_t (*get_features)(VirtIODevice *vdev, uint32_t requested_features);
uint32_t (*bad_features)(VirtIODevice *vdev);
void (*set_features)(VirtIODevice *vdev, uint32_t val);
void (*get_config)(VirtIODevice *vdev, uint8_t *config);
void (*set_config)(VirtIODevice *vdev, const uint8_t *config);
void (*reset)(VirtIODevice *vdev);
void (*set_status)(VirtIODevice *vdev, uint8_t val);
/* Test and clear event pending status.
* Should be called after unmask to avoid losing events.
* If backend does not support masking,
* must check in frontend instead.
*/
bool (*guest_notifier_pending)(VirtIODevice *vdev, int n);
/* Mask/unmask events from this vq. Any events reported
* while masked will become pending.
* If backend does not support masking,
* must mask in frontend instead.
*/
void (*guest_notifier_mask)(VirtIODevice *vdev, int n, bool mask);
VirtQueue *vq;
const VirtIOBindings *binding;
DeviceState *binding_opaque;