Hi Maxime,
> -----Original Message-----
> From: Maxime Coquelin <maxime.coque...@redhat.com>
> Sent: Friday, March 31, 2023 11:43 PM
> To: dev@dpdk.org; david.march...@redhat.com; Xia, Chenbo
> <chenbo....@intel.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
> Cc: Maxime Coquelin <maxime.coque...@redhat.com>
> Subject: [RFC 20/27] vhost: add VDUSE callback for IOTLB entry removal
>
> This patch implements the VDUSE callback for IOTLB misses,
for IOTLB entry removal? This commit messages seems the same as patch 19.
You may want to change it :)
Thanks,
Chenbo
> 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 f46823f589..ff4c9e72f1 100644
> --- a/lib/vhost/vduse.c
> +++ b/lib/vhost/vduse.c
> @@ -32,6 +32,12 @@
> (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)
> {
> @@ -89,6 +95,7 @@ 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
> --
> 2.39.2
