search for: numem

...d vhost_dev_stop(struct vhost_dev *dev) } EXPORT_SYMBOL_GPL(vhost_dev_stop); +static void vhost_umem_free(struct vhost_umem *umem, + struct vhost_umem_node *node) +{ + vhost_umem_interval_tree_remove(node, &umem->umem_tree); + list_del(&node->link); + kfree(node); + umem->numem--; +} + static void vhost_umem_clean(struct vhost_umem *umem) { struct vhost_umem_node *node, *tmp; @@ -544,11 +559,9 @@ static void vhost_umem_clean(struct vhost_umem *umem) if (!umem) return; - list_for_each_entry_safe(node, tmp, &umem->umem_list, link) { - vhost_umem_interval_...

...d vhost_dev_stop(struct vhost_dev *dev) } EXPORT_SYMBOL_GPL(vhost_dev_stop); -static void vhost_umem_free(struct vhost_umem *umem, - struct vhost_umem_node *node) -{ - vhost_umem_interval_tree_remove(node, &umem->umem_tree); - list_del(&node->link); - kfree(node); - umem->numem--; -} - -static void vhost_umem_clean(struct vhost_umem *umem) -{ - struct vhost_umem_node *node, *tmp; - - if (!umem) - return; - - list_for_each_entry_safe(node, tmp, &umem->umem_list, link) - vhost_umem_free(umem, node); - - kvfree(umem); -} - static void vhost_clear_msg(struct vhost_d...

...d vhost_dev_stop(struct vhost_dev *dev) } EXPORT_SYMBOL_GPL(vhost_dev_stop); +static void vhost_umem_free(struct vhost_umem *umem, + struct vhost_umem_node *node) +{ + vhost_umem_interval_tree_remove(node, &umem->umem_tree); + list_del(&node->link); + kfree(node); + umem->numem--; +} + static void vhost_umem_clean(struct vhost_umem *umem) { struct vhost_umem_node *node, *tmp; @@ -570,14 +589,31 @@ static void vhost_umem_clean(struct vhost_umem *umem) if (!umem) return; - list_for_each_entry_safe(node, tmp, &umem->umem_list, link) { - vhost_umem_interval...

This patch tries to implement an device IOTLB for vhost. This could be used with for co-operation with userspace(qemu) implementation of iommu for a secure DMA environment (DMAR) in guest. The idea is simple. When vhost meets an IOTLB miss, it will request the assistance of userspace to do the translation, this is done through: - Fill the translation request in a preset userspace address (This

This patch tries to implement an device IOTLB for vhost. This could be used with for co-operation with userspace(qemu) implementation of iommu for a secure DMA environment (DMAR) in guest. The idea is simple. When vhost meets an IOTLB miss, it will request the assistance of userspace to do the translation, this is done through: - Fill the translation request in a preset userspace address (This

...t; EXPORT_SYMBOL_GPL(vhost_dev_stop); > > +static void vhost_umem_free(struct vhost_umem *umem, > + struct vhost_umem_node *node) > +{ > + vhost_umem_interval_tree_remove(node, &umem->umem_tree); > + list_del(&node->link); > + kfree(node); > + umem->numem--; > +} > + > static void vhost_umem_clean(struct vhost_umem *umem) > { > struct vhost_umem_node *node, *tmp; > @@ -544,11 +559,9 @@ static void vhost_umem_clean(struct vhost_umem *umem) > if (!umem) > return; > > - list_for_each_entry_safe(node, tmp, &u...

...t; EXPORT_SYMBOL_GPL(vhost_dev_stop); > > +static void vhost_umem_free(struct vhost_umem *umem, > + struct vhost_umem_node *node) > +{ > + vhost_umem_interval_tree_remove(node, &umem->umem_tree); > + list_del(&node->link); > + kfree(node); > + umem->numem--; > +} > + > static void vhost_umem_clean(struct vhost_umem *umem) > { > struct vhost_umem_node *node, *tmp; > @@ -544,11 +559,9 @@ static void vhost_umem_clean(struct vhost_umem *umem) > if (!umem) > return; > > - list_for_each_entry_safe(node, tmp, &u...

...;last) - -struct vhost_umem_node { - struct rb_node rb; - struct list_head link; - __u64 start; - __u64 last; - __u64 size; - __u64 userspace_addr; - __u32 perm; - __u32 flags_padding; - __u64 __subtree_last; -}; - -struct vhost_umem { - struct rb_root umem_tree; - struct list_head umem_list; - int numem; -}; - -enum vhost_uaddr_type { - VHOST_ADDR_DESC = 0, - VHOST_ADDR_AVAIL = 1, - VHOST_ADDR_USED = 2, - VHOST_NUM_ADDRS = 3, -}; - -/* The virtqueue structure describes a queue attached to a device. */ -struct vhost_virtqueue { - struct vhost_dev *dev; - - /* The actual ring of buffers. */ - struct...

...;last) - -struct vhost_umem_node { - struct rb_node rb; - struct list_head link; - __u64 start; - __u64 last; - __u64 size; - __u64 userspace_addr; - __u32 perm; - __u32 flags_padding; - __u64 __subtree_last; -}; - -struct vhost_umem { - struct rb_root umem_tree; - struct list_head umem_list; - int numem; -}; - -enum vhost_uaddr_type { - VHOST_ADDR_DESC = 0, - VHOST_ADDR_AVAIL = 1, - VHOST_ADDR_USED = 2, - VHOST_NUM_ADDRS = 3, -}; - -/* The virtqueue structure describes a queue attached to a device. */ -struct vhost_virtqueue { - struct vhost_dev *dev; - - /* The actual ring of buffers. */ - struct...

...list_head link; > - __u64 start; > - __u64 last; > - __u64 size; > - __u64 userspace_addr; > - __u32 perm; > - __u32 flags_padding; > - __u64 __subtree_last; > -}; > - > -struct vhost_umem { > - struct rb_root umem_tree; > - struct list_head umem_list; > - int numem; > -}; > - > -enum vhost_uaddr_type { > - VHOST_ADDR_DESC = 0, > - VHOST_ADDR_AVAIL = 1, > - VHOST_ADDR_USED = 2, > - VHOST_NUM_ADDRS = 3, > -}; > - > -/* The virtqueue structure describes a queue attached to a device. */ > -struct vhost_virtqueue { > - struct vh...

This patch tries to implement an device IOTLB for vhost. This could be used with for co-operation with userspace IOMMU implementation (qemu) for a secure DMA environment (DMAR) in guest. The idea is simple. When vhost meets an IOTLB miss, it will request the assistance of userspace to do the translation, this is done through: - when there's a IOTLB miss, it will notify userspace through

This patch tries to implement an device IOTLB for vhost. This could be used with for co-operation with userspace IOMMU implementation (qemu) for a secure DMA environment (DMAR) in guest. The idea is simple. When vhost meets an IOTLB miss, it will request the assistance of userspace to do the translation, this is done through: - when there's a IOTLB miss, it will notify userspace through

This patch tries to implement an device IOTLB for vhost. This could be used with for co-operation with userspace IOMMU implementation (qemu) for a secure DMA environment (DMAR) in guest. The idea is simple. When vhost meets an IOTLB miss, it will request the assistance of userspace to do the translation, this is done through: - when there's a IOTLB miss, it will notify userspace through

This patch tries to implement an device IOTLB for vhost. This could be used with for co-operation with userspace IOMMU implementation (qemu) for a secure DMA environment (DMAR) in guest. The idea is simple. When vhost meets an IOTLB miss, it will request the assistance of userspace to do the translation, this is done through: - when there's a IOTLB miss, it will notify userspace through

This patch tries to implement an device IOTLB for vhost. This could be used with for co-operation with userspace IOMMU implementation (qemu) for a secure DMA environment (DMAR) in guest. The idea is simple. When vhost meets an IOTLB miss, it will request the assistance of userspace to do the translation, this is done through: - when there's a IOTLB miss, it will notify userspace through

This patch tries to implement an device IOTLB for vhost. This could be used with for co-operation with userspace IOMMU implementation (qemu) for a secure DMA environment (DMAR) in guest. The idea is simple. When vhost meets an IOTLB miss, it will request the assistance of userspace to do the translation, this is done through: - when there's a IOTLB miss, it will notify userspace through

...) { vq_err(vq, "Failed to check avail idx at %p: %d\n", &vq->avail->idx, r); diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 78f3c5f..034ea18 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -76,6 +76,13 @@ struct vhost_umem { int numem; }; +enum vhost_uaddr_type { + VHOST_ADDR_DESC = 0, + VHOST_ADDR_AVAIL = 1, + VHOST_ADDR_USED = 2, + VHOST_NUM_ADDRS = 3, +}; + /* The virtqueue structure describes a queue attached to a device. */ struct vhost_virtqueue { struct vhost_dev *dev; @@ -86,6 +93,7 @@ struct vhost_virtqueue { s...

...) { vq_err(vq, "Failed to check avail idx at %p: %d\n", &vq->avail->idx, r); diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 78f3c5f..034ea18 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -76,6 +76,13 @@ struct vhost_umem { int numem; }; +enum vhost_uaddr_type { + VHOST_ADDR_DESC = 0, + VHOST_ADDR_AVAIL = 1, + VHOST_ADDR_USED = 2, + VHOST_NUM_ADDRS = 3, +}; + /* The virtqueue structure describes a queue attached to a device. */ struct vhost_virtqueue { struct vhost_dev *dev; @@ -86,6 +93,7 @@ struct vhost_virtqueue { s...

...) { vq_err(vq, "Failed to check avail idx at %p: %d\n", &vq->avail->idx, r); diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 78f3c5f..034ea18 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -76,6 +76,13 @@ struct vhost_umem { int numem; }; +enum vhost_uaddr_type { + VHOST_ADDR_DESC = 0, + VHOST_ADDR_AVAIL = 1, + VHOST_ADDR_USED = 2, + VHOST_NUM_ADDRS = 3, +}; + /* The virtqueue structure describes a queue attached to a device. */ struct vhost_virtqueue { struct vhost_dev *dev; @@ -86,6 +93,7 @@ struct vhost_virtqueue { s...

...) { vq_err(vq, "Failed to check avail idx at %p: %d\n", &vq->avail->idx, r); diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 78f3c5f..034ea18 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -76,6 +76,13 @@ struct vhost_umem { int numem; }; +enum vhost_uaddr_type { + VHOST_ADDR_DESC = 0, + VHOST_ADDR_AVAIL = 1, + VHOST_ADDR_USED = 2, + VHOST_NUM_ADDRS = 3, +}; + /* The virtqueue structure describes a queue attached to a device. */ struct vhost_virtqueue { struct vhost_dev *dev; @@ -86,6 +93,7 @@ struct vhost_virtqueue { s...