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vhost: 64 bit features

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Make sure that all vhost interfaces use 64 bit features, as the virtio
core does, and make sure to use ULL everywhere possible to be on the
safe side.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Cornelia Huck 2015-06-04 12:34:20 +02:00 committed by Michael S. Tsirkin
parent b150613200
commit 9a2ba82302
4 changed files with 18 additions and 18 deletions
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12
hw/net/vhost_net.c
View File

@ -109,13 +109,13 @@ static const int *vhost_net_get_feature_bits(struct vhost_net *net)
return feature_bits;
}
unsigned vhost_net_get_features(struct vhost_net *net, unsigned features)
uint64_t vhost_net_get_features(struct vhost_net *net, uint64_t features)
{
return vhost_get_features(&net->dev, vhost_net_get_feature_bits(net),
features);
}
void vhost_net_ack_features(struct vhost_net *net, unsigned features)
void vhost_net_ack_features(struct vhost_net *net, uint64_t features)
{
net->dev.acked_features = net->dev.backend_features;
vhost_ack_features(&net->dev, vhost_net_get_feature_bits(net), features);
@ -149,7 +149,7 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options)
goto fail;
}
net->dev.backend_features = qemu_has_vnet_hdr(options->net_backend)
? 0 : (1 << VHOST_NET_F_VIRTIO_NET_HDR);
? 0 : (1ULL << VHOST_NET_F_VIRTIO_NET_HDR);
net->backend = r;
} else {
net->dev.backend_features = 0;
@ -169,7 +169,7 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options)
if (backend_kernel) {
if (!qemu_has_vnet_hdr_len(options->net_backend,
sizeof(struct virtio_net_hdr_mrg_rxbuf))) {
net->dev.features &= ~(1 << VIRTIO_NET_F_MRG_RXBUF);
net->dev.features &= ~(1ULL << VIRTIO_NET_F_MRG_RXBUF);
}
if (~net->dev.features & net->dev.backend_features) {
fprintf(stderr, "vhost lacks feature mask %" PRIu64
@ -433,11 +433,11 @@ void vhost_net_cleanup(struct vhost_net *net)
{
}
unsigned vhost_net_get_features(struct vhost_net *net, unsigned features)
uint64_t vhost_net_get_features(struct vhost_net *net, uint64_t features)
{
return features;
}
void vhost_net_ack_features(struct vhost_net *net, unsigned features)
void vhost_net_ack_features(struct vhost_net *net, uint64_t features)
{
}

14
hw/virtio/vhost.c
View File

@ -590,7 +590,7 @@ static int vhost_dev_set_features(struct vhost_dev *dev, bool enable_log)
uint64_t features = dev->acked_features;
int r;
if (enable_log) {
features |= 0x1 << VHOST_F_LOG_ALL;
features |= 0x1ULL << VHOST_F_LOG_ALL;
}
r = dev->vhost_ops->vhost_call(dev, VHOST_SET_FEATURES, &features);
return r < 0 ? -errno : 0;
@ -899,7 +899,7 @@ int vhost_dev_init(struct vhost_dev *hdev, void *opaque,
.priority = 10
};
hdev->migration_blocker = NULL;
if (!(hdev->features & (0x1 << VHOST_F_LOG_ALL))) {
if (!(hdev->features & (0x1ULL << VHOST_F_LOG_ALL))) {
error_setg(&hdev->migration_blocker,
"Migration disabled: vhost lacks VHOST_F_LOG_ALL feature.");
migrate_add_blocker(hdev->migration_blocker);
@ -1042,12 +1042,12 @@ void vhost_virtqueue_mask(struct vhost_dev *hdev, VirtIODevice *vdev, int n,
assert(r >= 0);
}
unsigned vhost_get_features(struct vhost_dev *hdev, const int *feature_bits,
unsigned features)
uint64_t vhost_get_features(struct vhost_dev *hdev, const int *feature_bits,
uint64_t features)
{
const int *bit = feature_bits;
while (*bit != VHOST_INVALID_FEATURE_BIT) {
unsigned bit_mask = (1 << *bit);
uint64_t bit_mask = (1ULL << *bit);
if (!(hdev->features & bit_mask)) {
features &= ~bit_mask;
}
@ -1057,11 +1057,11 @@ unsigned vhost_get_features(struct vhost_dev *hdev, const int *feature_bits,
}
void vhost_ack_features(struct vhost_dev *hdev, const int *feature_bits,
unsigned features)
uint64_t features)
{
const int *bit = feature_bits;
while (*bit != VHOST_INVALID_FEATURE_BIT) {
unsigned bit_mask = (1 << *bit);
uint64_t bit_mask = (1ULL << *bit);
if (features & bit_mask) {
hdev->acked_features |= bit_mask;
}

6
include/hw/virtio/vhost.h
View File

@ -78,8 +78,8 @@ bool vhost_virtqueue_pending(struct vhost_dev *hdev, int n);
*/
void vhost_virtqueue_mask(struct vhost_dev *hdev, VirtIODevice *vdev, int n,
bool mask);
unsigned vhost_get_features(struct vhost_dev *hdev, const int *feature_bits,
unsigned features);
uint64_t vhost_get_features(struct vhost_dev *hdev, const int *feature_bits,
uint64_t features);
void vhost_ack_features(struct vhost_dev *hdev, const int *feature_bits,
unsigned features);
uint64_t features);
#endif

4
include/net/vhost_net.h
View File

@ -22,8 +22,8 @@ void vhost_net_stop(VirtIODevice *dev, NetClientState *ncs, int total_queues);
void vhost_net_cleanup(VHostNetState *net);
unsigned vhost_net_get_features(VHostNetState *net, unsigned features);
void vhost_net_ack_features(VHostNetState *net, unsigned features);
uint64_t vhost_net_get_features(VHostNetState *net, uint64_t features);
void vhost_net_ack_features(VHostNetState *net, uint64_t features);
bool vhost_net_virtqueue_pending(VHostNetState *net, int n);
void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev,