search for: vhost_dev_reset_owner_prepar

...vhost_net_reset_owner(struct vhost_net *n) struct socket *tx_sock = NULL; struct socket *rx_sock = NULL; long err; - struct vhost_memory *memory; + struct vhost_umem *umem; mutex_lock(&n->dev.mutex); err = vhost_dev_check_owner(&n->dev); if (err) goto done; - memory = vhost_dev_reset_owner_prepare(); - if (!memory) { + umem = vhost_dev_reset_owner_prepare(); + if (!umem) { err = -ENOMEM; goto done; } vhost_net_stop(n, &tx_sock, &rx_sock); vhost_net_flush(n); - vhost_dev_reset_owner(&n->dev, memory); + vhost_dev_reset_owner(&n->dev, umem); vhost_net_vq_res...

...vhost_net_reset_owner(struct vhost_net *n) struct socket *tx_sock = NULL; struct socket *rx_sock = NULL; long err; - struct vhost_memory *memory; + struct vhost_umem *umem; mutex_lock(&n->dev.mutex); err = vhost_dev_check_owner(&n->dev); if (err) goto done; - memory = vhost_dev_reset_owner_prepare(); - if (!memory) { + umem = vhost_dev_reset_owner_prepare(); + if (!umem) { err = -ENOMEM; goto done; } vhost_net_stop(n, &tx_sock, &rx_sock); vhost_net_flush(n); - vhost_dev_reset_owner(&n->dev, memory); + vhost_dev_reset_owner(&n->dev, umem); vhost_net_vq_res...

...vhost_net_reset_owner(struct vhost_net *n) struct socket *tx_sock = NULL; struct socket *rx_sock = NULL; long err; - struct vhost_memory *memory; + struct vhost_umem *umem; mutex_lock(&n->dev.mutex); err = vhost_dev_check_owner(&n->dev); if (err) goto done; - memory = vhost_dev_reset_owner_prepare(); - if (!memory) { + umem = vhost_dev_reset_owner_prepare(); + if (!umem) { err = -ENOMEM; goto done; } vhost_net_stop(n, &tx_sock, &rx_sock); vhost_net_flush(n); - vhost_dev_reset_owner(&n->dev, memory); + vhost_dev_reset_owner(&n->dev, umem); vhost_net_vq_res...

...t socket *tx_sock = NULL; > struct socket *rx_sock = NULL; > long err; > - struct vhost_memory *memory; > + struct vhost_umem *umem; > > mutex_lock(&n->dev.mutex); > err = vhost_dev_check_owner(&n->dev); > if (err) > goto done; > - memory = vhost_dev_reset_owner_prepare(); > - if (!memory) { > + umem = vhost_dev_reset_owner_prepare(); > + if (!umem) { > err = -ENOMEM; > goto done; > } > vhost_net_stop(n, &tx_sock, &rx_sock); > vhost_net_flush(n); > - vhost_dev_reset_owner(&n->dev, memory); > + vhost_dev_res...

...t socket *tx_sock = NULL; > struct socket *rx_sock = NULL; > long err; > - struct vhost_memory *memory; > + struct vhost_umem *umem; > > mutex_lock(&n->dev.mutex); > err = vhost_dev_check_owner(&n->dev); > if (err) > goto done; > - memory = vhost_dev_reset_owner_prepare(); > - if (!memory) { > + umem = vhost_dev_reset_owner_prepare(); > + if (!umem) { > err = -ENOMEM; > goto done; > } > vhost_net_stop(n, &tx_sock, &rx_sock); > vhost_net_flush(n); > - vhost_dev_reset_owner(&n->dev, memory); > + vhost_dev_res...

...t socket *tx_sock = NULL; > struct socket *rx_sock = NULL; > long err; > - struct vhost_memory *memory; > + struct vhost_umem *umem; > > mutex_lock(&n->dev.mutex); > err = vhost_dev_check_owner(&n->dev); > if (err) > goto done; > - memory = vhost_dev_reset_owner_prepare(); > - if (!memory) { > + umem = vhost_dev_reset_owner_prepare(); > + if (!umem) { > err = -ENOMEM; > goto done; > } > vhost_net_stop(n, &tx_sock, &rx_sock); > vhost_net_flush(n); > - vhost_dev_reset_owner(&n->dev, memory); > + vhost_dev_res...

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

..., LAST, static inline, vhost_umem_interval_tree); - #ifdef CONFIG_VHOST_CROSS_ENDIAN_LEGACY static void vhost_disable_cross_endian(struct vhost_virtqueue *vq) { @@ -581,21 +577,25 @@ long vhost_dev_set_owner(struct vhost_dev *dev) } EXPORT_SYMBOL_GPL(vhost_dev_set_owner); -struct vhost_umem *vhost_dev_reset_owner_prepare(void) +static struct vhost_iotlb *iotlb_alloc(void) +{ + return vhost_iotlb_alloc(max_iotlb_entries, + VHOST_IOTLB_FLAG_RETIRE); +} + +struct vhost_iotlb *vhost_dev_reset_owner_prepare(void) { - return kvzalloc(sizeof(struct vhost_umem), GFP_KERNEL); + return iotlb_alloc(); } EXPORT_SYMBOL_...

...t i; diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 79c6e7a60a5e..ff4d918e3e0a 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -181,7 +181,7 @@ bool vhost_dev_has_owner(struct vhost_dev *dev); long vhost_dev_check_owner(struct vhost_dev *); struct vhost_umem *vhost_dev_reset_owner_prepare(void); void vhost_dev_reset_owner(struct vhost_dev *, struct vhost_umem *); -void vhost_dev_cleanup(struct vhost_dev *, bool locked); +void vhost_dev_cleanup(struct vhost_dev *); void vhost_dev_stop(struct vhost_dev *); long vhost_dev_ioctl(struct vhost_dev *, unsigned int ioctl, void __user *a...

...host_attach_cgroups_struct { > > > struct vhost_work work; > > > @@ -385,11 +396,13 @@ err_worker: > > > err_mm: > > > return err; > > > } > > > +EXPORT_SYMBOL_GPL(vhost_dev_set_owner); > > > > > > struct vhost_memory *vhost_dev_reset_owner_prepare(void) > > > { > > > return kmalloc(offsetof(struct vhost_memory, regions), GFP_KERNEL); > > > } > > > +EXPORT_SYMBOL_GPL(vhost_dev_reset_owner_prepare); > > > > > > /* Caller should have device mutex */ > > > void vhost_dev_res...

...host_attach_cgroups_struct { > > > struct vhost_work work; > > > @@ -385,11 +396,13 @@ err_worker: > > > err_mm: > > > return err; > > > } > > > +EXPORT_SYMBOL_GPL(vhost_dev_set_owner); > > > > > > struct vhost_memory *vhost_dev_reset_owner_prepare(void) > > > { > > > return kmalloc(offsetof(struct vhost_memory, regions), GFP_KERNEL); > > > } > > > +EXPORT_SYMBOL_GPL(vhost_dev_reset_owner_prepare); > > > > > > /* Caller should have device mutex */ > > > void vhost_dev_res...

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

...gt; > struct vhost_work work; > > > > @@ -385,11 +396,13 @@ err_worker: > > > > err_mm: > > > > return err; > > > > } > > > > +EXPORT_SYMBOL_GPL(vhost_dev_set_owner); > > > > > > > > struct vhost_memory *vhost_dev_reset_owner_prepare(void) > > > > { > > > > return kmalloc(offsetof(struct vhost_memory, regions), GFP_KERNEL); > > > > } > > > > +EXPORT_SYMBOL_GPL(vhost_dev_reset_owner_prepare); > > > > > > > > /* Caller should have device mutex */ >...

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

...{ int i; diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 8c1c792..cc9a742 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -127,7 +127,7 @@ bool vhost_dev_has_owner(struct vhost_dev *dev); long vhost_dev_check_owner(struct vhost_dev *); struct vhost_memory *vhost_dev_reset_owner_prepare(void); void vhost_dev_reset_owner(struct vhost_dev *, struct vhost_memory *); -void vhost_dev_cleanup(struct vhost_dev *, bool locked); +void vhost_dev_cleanup(struct vhost_dev *); void vhost_dev_stop(struct vhost_dev *); long vhost_dev_ioctl(struct vhost_dev *, unsigned int ioctl, void __user...