From: Xie Yongji <xieyongji@bytedance.com>
To: mst@redhat.com, jasowang@redhat.com, stefanha@redhat.com,
sgarzare@redhat.com, parav@nvidia.com, hch@infradead.org,
christian.brauner@canonical.com, rdunlap@infradead.org,
willy@infradead.org, viro@zeniv.linux.org.uk, axboe@kernel.dk,
bcrl@kvack.org, corbet@lwn.net, mika.penttila@nextfour.com,
dan.carpenter@oracle.com, joro@8bytes.org,
gregkh@linuxfoundation.org, zhe.he@windriver.com,
xiaodong.liu@intel.com, joe@perches.com
Cc: songmuchun@bytedance.com,
virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, kvm@vger.kernel.org,
linux-fsdevel@vger.kernel.org, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v10 11/17] vhost-iotlb: Add an opaque pointer for vhost IOTLB
Date: Thu, 29 Jul 2021 15:34:57 +0800 [thread overview]
Message-ID: <20210729073503.187-12-xieyongji@bytedance.com> (raw)
In-Reply-To: <20210729073503.187-1-xieyongji@bytedance.com>
Add an opaque pointer for vhost IOTLB. And introduce
vhost_iotlb_add_range_ctx() to accept it.
Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Jason Wang <jasowang@redhat.com>
---
drivers/vhost/iotlb.c | 20 ++++++++++++++++----
include/linux/vhost_iotlb.h | 3 +++
2 files changed, 19 insertions(+), 4 deletions(-)
diff --git a/drivers/vhost/iotlb.c b/drivers/vhost/iotlb.c
index 0582079e4bcc..670d56c879e5 100644
--- a/drivers/vhost/iotlb.c
+++ b/drivers/vhost/iotlb.c
@@ -36,19 +36,21 @@ void vhost_iotlb_map_free(struct vhost_iotlb *iotlb,
EXPORT_SYMBOL_GPL(vhost_iotlb_map_free);
/**
- * vhost_iotlb_add_range - add a new range to vhost IOTLB
+ * vhost_iotlb_add_range_ctx - add a new range to vhost IOTLB
* @iotlb: the IOTLB
* @start: start of the IOVA range
* @last: last of IOVA range
* @addr: the address that is mapped to @start
* @perm: access permission of this range
+ * @opaque: the opaque pointer for the new mapping
*
* Returns an error last is smaller than start or memory allocation
* fails
*/
-int vhost_iotlb_add_range(struct vhost_iotlb *iotlb,
- u64 start, u64 last,
- u64 addr, unsigned int perm)
+int vhost_iotlb_add_range_ctx(struct vhost_iotlb *iotlb,
+ u64 start, u64 last,
+ u64 addr, unsigned int perm,
+ void *opaque)
{
struct vhost_iotlb_map *map;
@@ -71,6 +73,7 @@ int vhost_iotlb_add_range(struct vhost_iotlb *iotlb,
map->last = last;
map->addr = addr;
map->perm = perm;
+ map->opaque = opaque;
iotlb->nmaps++;
vhost_iotlb_itree_insert(map, &iotlb->root);
@@ -80,6 +83,15 @@ int vhost_iotlb_add_range(struct vhost_iotlb *iotlb,
return 0;
}
+EXPORT_SYMBOL_GPL(vhost_iotlb_add_range_ctx);
+
+int vhost_iotlb_add_range(struct vhost_iotlb *iotlb,
+ u64 start, u64 last,
+ u64 addr, unsigned int perm)
+{
+ return vhost_iotlb_add_range_ctx(iotlb, start, last,
+ addr, perm, NULL);
+}
EXPORT_SYMBOL_GPL(vhost_iotlb_add_range);
/**
diff --git a/include/linux/vhost_iotlb.h b/include/linux/vhost_iotlb.h
index 6b09b786a762..2d0e2f52f938 100644
--- a/include/linux/vhost_iotlb.h
+++ b/include/linux/vhost_iotlb.h
@@ -17,6 +17,7 @@ struct vhost_iotlb_map {
u32 perm;
u32 flags_padding;
u64 __subtree_last;
+ void *opaque;
};
#define VHOST_IOTLB_FLAG_RETIRE 0x1
@@ -29,6 +30,8 @@ struct vhost_iotlb {
unsigned int flags;
};
+int vhost_iotlb_add_range_ctx(struct vhost_iotlb *iotlb, u64 start, u64 last,
+ u64 addr, unsigned int perm, void *opaque);
int vhost_iotlb_add_range(struct vhost_iotlb *iotlb, u64 start, u64 last,
u64 addr, unsigned int perm);
void vhost_iotlb_del_range(struct vhost_iotlb *iotlb, u64 start, u64 last);
--
2.11.0
next prev parent reply other threads:[~2021-07-29 7:37 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-29 7:34 [PATCH v10 00/17] Introduce VDUSE - vDPA Device in Userspace Xie Yongji
2021-07-29 7:34 ` [PATCH v10 01/17] iova: Export alloc_iova_fast() and free_iova_fast() Xie Yongji
2021-08-03 7:41 ` Jason Wang
2021-08-03 7:41 ` Jason Wang
2021-08-03 8:54 ` Yongji Xie
2021-08-03 10:53 ` Robin Murphy
2021-08-04 5:02 ` Yongji Xie
2021-08-04 15:43 ` Robin Murphy
2021-08-05 12:34 ` Yongji Xie
2021-08-05 13:31 ` Jason Wang
2021-08-09 5:56 ` Yongji Xie
2021-08-10 3:02 ` Jason Wang
2021-08-10 7:43 ` Yongji Xie
2021-07-29 7:34 ` [PATCH v10 02/17] file: Export receive_fd() to modules Xie Yongji
2021-08-03 7:45 ` Jason Wang
2021-08-03 9:01 ` Yongji Xie
2021-08-04 8:27 ` Jason Wang
2021-07-29 7:34 ` [PATCH v10 03/17] vdpa: Fix code indentation Xie Yongji
2021-08-03 7:50 ` Jason Wang
2021-08-03 9:13 ` Yongji Xie
2021-07-29 7:34 ` [PATCH v10 04/17] vdpa: Fail the vdpa_reset() if fail to set device status to zero Xie Yongji
2021-08-03 7:58 ` Jason Wang
2021-08-03 9:31 ` Yongji Xie
2021-08-04 8:30 ` Jason Wang
2021-07-29 7:34 ` [PATCH v10 05/17] vhost-vdpa: Fail the vhost_vdpa_set_status() on reset failure Xie Yongji
2021-08-03 8:10 ` Jason Wang
2021-08-03 9:50 ` Yongji Xie
2021-08-04 8:33 ` Jason Wang
2021-07-29 7:34 ` [PATCH v10 06/17] vhost-vdpa: Handle the failure of vdpa_reset() Xie Yongji
2021-07-29 7:34 ` [PATCH v10 07/17] virtio: Don't set FAILED status bit on device index allocation failure Xie Yongji
2021-08-03 8:02 ` Jason Wang
2021-08-03 9:17 ` Yongji Xie
2021-07-29 7:34 ` [PATCH v10 08/17] virtio_config: Add a return value to reset function Xie Yongji
2021-07-29 7:34 ` [PATCH v10 09/17] virtio-vdpa: Handle the failure of vdpa_reset() Xie Yongji
2021-07-29 7:34 ` [PATCH v10 10/17] virtio: Handle device reset failure in register_virtio_device() Xie Yongji
2021-08-03 8:09 ` Jason Wang
2021-08-03 9:38 ` Yongji Xie
2021-08-04 8:32 ` Jason Wang
2021-08-04 8:50 ` Yongji Xie
2021-08-04 8:54 ` Jason Wang
2021-08-04 9:07 ` Yongji Xie
2021-08-05 7:12 ` Jason Wang
2021-07-29 7:34 ` Xie Yongji [this message]
2021-07-29 7:34 ` [PATCH v10 12/17] vdpa: Add an opaque pointer for vdpa_config_ops.dma_map() Xie Yongji
2021-07-29 7:34 ` [PATCH v10 13/17] vdpa: factor out vhost_vdpa_pa_map() and vhost_vdpa_pa_unmap() Xie Yongji
2021-07-29 7:35 ` [PATCH v10 14/17] vdpa: Support transferring virtual addressing during DMA mapping Xie Yongji
2021-07-29 7:35 ` [PATCH v10 15/17] vduse: Implement an MMU-based software IOTLB Xie Yongji
2021-07-29 7:35 ` [PATCH v10 16/17] vduse: Introduce VDUSE - vDPA Device in Userspace Xie Yongji
2021-07-29 9:00 ` Greg KH
2021-07-29 9:57 ` Yongji Xie
2021-08-03 7:30 ` Jason Wang
2021-08-03 8:39 ` Yongji Xie
2021-07-29 7:35 ` [PATCH v10 17/17] Documentation: Add documentation for VDUSE Xie Yongji
2021-08-03 7:35 ` Jason Wang
2021-08-03 8:52 ` Yongji Xie
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