Revision ad0c9332
| b/hw/s390-virtio-bus.c | ||
|---|---|---|
| 254 | 254 |
/* Update guest supported feature bitmap */ |
| 255 | 255 |
|
| 256 | 256 |
features = bswap32(ldl_be_phys(dev->feat_offs)); |
| 257 |
if (vdev->set_features) {
|
|
| 258 |
vdev->set_features(vdev, features); |
|
| 259 |
} |
|
| 260 |
vdev->guest_features = features; |
|
| 257 |
virtio_set_features(vdev, features); |
|
| 261 | 258 |
} |
| 262 | 259 |
|
| 263 | 260 |
VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus) |
| b/hw/syborg_virtio.c | ||
|---|---|---|
| 131 | 131 |
} |
| 132 | 132 |
switch (offset >> 2) {
|
| 133 | 133 |
case SYBORG_VIRTIO_GUEST_FEATURES: |
| 134 |
if (vdev->set_features) |
|
| 135 |
vdev->set_features(vdev, value); |
|
| 136 |
vdev->guest_features = value; |
|
| 134 |
virtio_set_features(vdev, value); |
|
| 137 | 135 |
break; |
| 138 | 136 |
case SYBORG_VIRTIO_QUEUE_BASE: |
| 139 | 137 |
if (value == 0) |
| b/hw/virtio-pci.c | ||
|---|---|---|
| 285 | 285 |
case VIRTIO_PCI_GUEST_FEATURES: |
| 286 | 286 |
/* Guest does not negotiate properly? We have to assume nothing. */ |
| 287 | 287 |
if (val & (1 << VIRTIO_F_BAD_FEATURE)) {
|
| 288 |
if (vdev->bad_features) |
|
| 289 |
val = proxy->host_features & vdev->bad_features(vdev); |
|
| 290 |
else |
|
| 291 |
val = 0; |
|
| 288 |
val = vdev->bad_features ? vdev->bad_features(vdev) : 0; |
|
| 292 | 289 |
} |
| 293 |
if (vdev->set_features) |
|
| 294 |
vdev->set_features(vdev, val); |
|
| 295 |
vdev->guest_features = val; |
|
| 290 |
virtio_set_features(vdev, val); |
|
| 296 | 291 |
break; |
| 297 | 292 |
case VIRTIO_PCI_QUEUE_PFN: |
| 298 | 293 |
pa = (target_phys_addr_t)val << VIRTIO_PCI_QUEUE_ADDR_SHIFT; |
| b/hw/virtio.c | ||
|---|---|---|
| 763 | 763 |
} |
| 764 | 764 |
} |
| 765 | 765 |
|
| 766 |
int virtio_set_features(VirtIODevice *vdev, uint32_t val) |
|
| 767 |
{
|
|
| 768 |
uint32_t supported_features = |
|
| 769 |
vdev->binding->get_features(vdev->binding_opaque); |
|
| 770 |
bool bad = (val & ~supported_features) != 0; |
|
| 771 |
|
|
| 772 |
val &= supported_features; |
|
| 773 |
if (vdev->set_features) {
|
|
| 774 |
vdev->set_features(vdev, val); |
|
| 775 |
} |
|
| 776 |
vdev->guest_features = val; |
|
| 777 |
return bad ? -1 : 0; |
|
| 778 |
} |
|
| 779 |
|
|
| 766 | 780 |
int virtio_load(VirtIODevice *vdev, QEMUFile *f) |
| 767 | 781 |
{
|
| 768 | 782 |
int num, i, ret; |
| 769 | 783 |
uint32_t features; |
| 770 |
uint32_t supported_features = |
|
| 771 |
vdev->binding->get_features(vdev->binding_opaque); |
|
| 784 |
uint32_t supported_features; |
|
| 772 | 785 |
|
| 773 | 786 |
if (vdev->binding->load_config) {
|
| 774 | 787 |
ret = vdev->binding->load_config(vdev->binding_opaque, f); |
| ... | ... | |
| 780 | 793 |
qemu_get_8s(f, &vdev->isr); |
| 781 | 794 |
qemu_get_be16s(f, &vdev->queue_sel); |
| 782 | 795 |
qemu_get_be32s(f, &features); |
| 783 |
if (features & ~supported_features) {
|
|
| 796 |
|
|
| 797 |
if (virtio_set_features(vdev, features) < 0) {
|
|
| 798 |
supported_features = vdev->binding->get_features(vdev->binding_opaque); |
|
| 784 | 799 |
error_report("Features 0x%x unsupported. Allowed features: 0x%x",
|
| 785 | 800 |
features, supported_features); |
| 786 | 801 |
return -1; |
| 787 | 802 |
} |
| 788 |
if (vdev->set_features) |
|
| 789 |
vdev->set_features(vdev, features); |
|
| 790 |
vdev->guest_features = features; |
|
| 791 | 803 |
vdev->config_len = qemu_get_be32(f); |
| 792 | 804 |
qemu_get_buffer(f, vdev->config, vdev->config_len); |
| 793 | 805 |
|
| b/hw/virtio.h | ||
|---|---|---|
| 185 | 185 |
void virtio_set_status(VirtIODevice *vdev, uint8_t val); |
| 186 | 186 |
void virtio_reset(void *opaque); |
| 187 | 187 |
void virtio_update_irq(VirtIODevice *vdev); |
| 188 |
int virtio_set_features(VirtIODevice *vdev, uint32_t val); |
|
| 188 | 189 |
|
| 189 | 190 |
void virtio_bind_device(VirtIODevice *vdev, const VirtIOBindings *binding, |
| 190 | 191 |
void *opaque); |
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