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vhost: Add vhost_get_max_memslots()

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Let's add vhost_get_max_memslots().

Message-ID: <20230926185738.277351-12-david@redhat.com>
Reviewed-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
This commit is contained in:
David Hildenbrand 2023-09-26 20:57:31 +02:00
parent 16ab2eda57
commit cd89c065b0
3 changed files with 17 additions and 0 deletions
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5
hw/virtio/vhost-stub.c
View File

@ -2,6 +2,11 @@
#include "hw/virtio/vhost.h"
#include "hw/virtio/vhost-user.h"
unsigned int vhost_get_max_memslots(void)
{
return UINT_MAX;
}
unsigned int vhost_get_free_memslots(void)
{
return UINT_MAX;

11
hw/virtio/vhost.c
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@ -55,6 +55,17 @@ static unsigned int used_shared_memslots;
static QLIST_HEAD(, vhost_dev) vhost_devices =
QLIST_HEAD_INITIALIZER(vhost_devices);
unsigned int vhost_get_max_memslots(void)
{
unsigned int max = UINT_MAX;
struct vhost_dev *hdev;
QLIST_FOREACH(hdev, &vhost_devices, entry) {
max = MIN(max, hdev->vhost_ops->vhost_backend_memslots_limit(hdev));
}
return max;
}
unsigned int vhost_get_free_memslots(void)
{
unsigned int free = UINT_MAX;

1
include/hw/virtio/vhost.h
View File

@ -315,6 +315,7 @@ uint64_t vhost_get_features(struct vhost_dev *hdev, const int *feature_bits,
*/
void vhost_ack_features(struct vhost_dev *hdev, const int *feature_bits,
uint64_t features);
unsigned int vhost_get_max_memslots(void);
unsigned int vhost_get_free_memslots(void);
int vhost_net_set_backend(struct vhost_dev *hdev,