> -----Original Message-----
> From: Maxime Coquelin <maxime.coque...@redhat.com>
> Sent: Friday, May 26, 2023 12:26 AM
> To: dev@dpdk.org; Xia, Chenbo <chenbo....@intel.com>;
> david.march...@redhat.com; m...@redhat.com; f...@redhat.com;
> jasow...@redhat.com; Liang, Cunming <cunming.li...@intel.com>; Xie, Yongji
> <xieyon...@bytedance.com>; echau...@redhat.com; epere...@redhat.com;
> amore...@redhat.com; l...@redhat.com
> Cc: Maxime Coquelin <maxime.coque...@redhat.com>
> Subject: [PATCH v3 20/28] vhost: add VDUSE callback for IOTLB entry
> removal
>
> This patch implements the VDUSE callback for IOTLB entry
> removal, where it unmaps the pages from the invalidated
> IOTLB entry.
>
> Signed-off-by: Maxime Coquelin <maxime.coque...@redhat.com>
> ---
> lib/vhost/vduse.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/lib/vhost/vduse.c b/lib/vhost/vduse.c
> index f72c7bf6ab..58c1b384a8 100644
> --- a/lib/vhost/vduse.c
> +++ b/lib/vhost/vduse.c
> @@ -42,6 +42,12 @@
> (1ULL << VIRTIO_F_IN_ORDER) | \
> (1ULL << VIRTIO_F_IOMMU_PLATFORM))
>
> +static void
> +vduse_iotlb_remove_notify(uint64_t addr, uint64_t offset, uint64_t size)
> +{
> + munmap((void *)(uintptr_t)addr, offset + size);
> +}
> +
> static int
> vduse_iotlb_miss(struct virtio_net *dev, uint64_t iova, uint8_t perm
> __rte_unused)
> {
> @@ -99,6 +105,7 @@ vduse_iotlb_miss(struct virtio_net *dev, uint64_t iova,
> uint8_t perm __rte_unuse
>
> static struct vhost_backend_ops vduse_backend_ops = {
> .iotlb_miss = vduse_iotlb_miss,
> + .iotlb_remove_notify = vduse_iotlb_remove_notify,
> };
>
> int
> --
> 2.40.1
Reviewed-by: Chenbo Xia <chenbo....@intel.com>
