On Tue, Feb 18, 2025 at 7:43 AM Stefan Hajnoczi wrote:
>
> On Mon, Feb 17, 2025 at 05:40:04PM +0100, Albert Esteve wrote:
> > Add SHMEM_MAP/UNMAP requests to vhost-user to
> > handle VIRTIO Shared Memory mappings.
> >
> > This request allows backends to dynamically map
> > fds into a VIRTIO Shared
Albert Esteve writes:
> @@ -192,6 +194,24 @@ typedef struct VhostUserShared {
> unsigned char uuid[16];
> } VhostUserShared;
>
> +/* For the flags field of VhostUserMMap */
> +#define VHOST_USER_FLAG_MAP_R (1u << 0)
> +#define VHOST_USER_FLAG_MAP_W (1u << 1)
> +
> +typedef struct {
> +
On Tue, Feb 18, 2025 at 7:43 AM Stefan Hajnoczi wrote:
>
> On Mon, Feb 17, 2025 at 05:40:04PM +0100, Albert Esteve wrote:
> > Add SHMEM_MAP/UNMAP requests to vhost-user to
> > handle VIRTIO Shared Memory mappings.
> >
> > This request allows backends to dynamically map
> > fds into a VIRTIO Shared
On Mon, Feb 17, 2025 at 05:40:04PM +0100, Albert Esteve wrote:
> diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
> index 85110bce37..47d0ddb820 100644
> --- a/hw/virtio/virtio.c
> +++ b/hw/virtio/virtio.c
> @@ -3063,6 +3063,75 @@ int virtio_save(VirtIODevice *vdev, QEMUFile *f)
> return v
On Mon, Feb 17, 2025 at 05:40:04PM +0100, Albert Esteve wrote:
> Add SHMEM_MAP/UNMAP requests to vhost-user to
> handle VIRTIO Shared Memory mappings.
>
> This request allows backends to dynamically map
> fds into a VIRTIO Shared Memory Region indentified
> by its `shmid`. The map is performed by
Add SHMEM_MAP/UNMAP requests to vhost-user to
handle VIRTIO Shared Memory mappings.
This request allows backends to dynamically map
fds into a VIRTIO Shared Memory Region indentified
by its `shmid`. The map is performed by calling
`memory_region_init_ram_from_fd` and adding the
new region as a sub
