search for: xfer_to_user

...--- drivers/vhost/vringh.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c index a1e27da54481..694462ba3242 100644 --- a/drivers/vhost/vringh.c +++ b/drivers/vhost/vringh.c @@ -636,9 +636,9 @@ static inline int xfer_to_user(const struct vringh *vrh, * @features: the feature bits for this ring. * @num: the number of elements. * @weak_barriers: true if we only need memory barriers, not I/O. - * @desc: the userpace descriptor pointer. - * @avail: the userpace avail pointer. - * @used: the userpace used pointer. + *...

...uct vhost_iotlb_map *meta_iotlb[VHOST_NUM_ADDRS]; struct file *kick; struct eventfd_ctx *call_ctx; diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c index ba8e0d6cfd97..e059a9a47cdf 100644 --- a/drivers/vhost/vringh.c +++ b/drivers/vhost/vringh.c @@ -620,9 +620,9 @@ static inline int xfer_to_user(const struct vringh *vrh, */ int vringh_init_user(struct vringh *vrh, u64 features, unsigned int num, bool weak_barriers, - struct vring_desc __user *desc, - struct vring_avail __user *avail, - struct vring_used __user *used) + vring_desc_t __user *desc, + v...

...uct vhost_iotlb_map *meta_iotlb[VHOST_NUM_ADDRS]; struct file *kick; struct eventfd_ctx *call_ctx; diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c index ba8e0d6cfd97..e059a9a47cdf 100644 --- a/drivers/vhost/vringh.c +++ b/drivers/vhost/vringh.c @@ -620,9 +620,9 @@ static inline int xfer_to_user(const struct vringh *vrh, */ int vringh_init_user(struct vringh *vrh, u64 features, unsigned int num, bool weak_barriers, - struct vring_desc __user *desc, - struct vring_avail __user *avail, - struct vring_used __user *used) + vring_desc_t __user *desc, + v...

...uct vhost_iotlb_map *meta_iotlb[VHOST_NUM_ADDRS]; struct file *kick; struct eventfd_ctx *call_ctx; diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c index ba8e0d6cfd97..e059a9a47cdf 100644 --- a/drivers/vhost/vringh.c +++ b/drivers/vhost/vringh.c @@ -620,9 +620,9 @@ static inline int xfer_to_user(const struct vringh *vrh, */ int vringh_init_user(struct vringh *vrh, u64 features, unsigned int num, bool weak_barriers, - struct vring_desc __user *desc, - struct vring_avail __user *avail, - struct vring_used __user *used) + vring_desc_t __user *desc, + v...

...uct vhost_iotlb_map *meta_iotlb[VHOST_NUM_ADDRS]; struct file *kick; struct eventfd_ctx *call_ctx; diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c index ba8e0d6cfd97..e059a9a47cdf 100644 --- a/drivers/vhost/vringh.c +++ b/drivers/vhost/vringh.c @@ -620,9 +620,9 @@ static inline int xfer_to_user(const struct vringh *vrh, */ int vringh_init_user(struct vringh *vrh, u64 features, unsigned int num, bool weak_barriers, - struct vring_desc __user *desc, - struct vring_avail __user *avail, - struct vring_used __user *used) + vring_desc_t __user *desc, + v...

...uct vhost_iotlb_map *meta_iotlb[VHOST_NUM_ADDRS]; struct file *kick; struct eventfd_ctx *call_ctx; diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c index ba8e0d6cfd97..e059a9a47cdf 100644 --- a/drivers/vhost/vringh.c +++ b/drivers/vhost/vringh.c @@ -620,9 +620,9 @@ static inline int xfer_to_user(const struct vringh *vrh, */ int vringh_init_user(struct vringh *vrh, u64 features, unsigned int num, bool weak_barriers, - struct vring_desc __user *desc, - struct vring_avail __user *avail, - struct vring_used __user *used) + vring_desc_t __user *desc, + v...

..._NUM_ADDRS]; > struct file *kick; > struct eventfd_ctx *call_ctx; > diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c > index ba8e0d6cfd97..e059a9a47cdf 100644 > --- a/drivers/vhost/vringh.c > +++ b/drivers/vhost/vringh.c > @@ -620,9 +620,9 @@ static inline int xfer_to_user(const struct vringh *vrh, > */ > int vringh_init_user(struct vringh *vrh, u64 features, > unsigned int num, bool weak_barriers, > - struct vring_desc __user *desc, > - struct vring_avail __user *avail, > - struct vring_used __user *used) > +...

..._NUM_ADDRS]; > struct file *kick; > struct eventfd_ctx *call_ctx; > diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c > index ba8e0d6cfd97..e059a9a47cdf 100644 > --- a/drivers/vhost/vringh.c > +++ b/drivers/vhost/vringh.c > @@ -620,9 +620,9 @@ static inline int xfer_to_user(const struct vringh *vrh, > */ > int vringh_init_user(struct vringh *vrh, u64 features, > unsigned int num, bool weak_barriers, > - struct vring_desc __user *desc, > - struct vring_avail __user *avail, > - struct vring_used __user *used) > +...

This fixes remaining sparse warnings in vringh and mic by using virtio 1.0 compliant wrappers. This also needs by get_user patches to avoid getting warnings from these calls. Tested by running vringh_test. Rusty, I prefer fixing all these warnings for 3.19, any objections? Michael S. Tsirkin (3): vringh: 64 bit features vringh: initial virtio 1.0 support mic/host: initial virtio 1.0

This fixes remaining sparse warnings in vringh and mic by using virtio 1.0 compliant wrappers. This also needs by get_user patches to avoid getting warnings from these calls. Tested by running vringh_test. Rusty, I prefer fixing all these warnings for 3.19, any objections? Michael S. Tsirkin (3): vringh: 64 bit features vringh: initial virtio 1.0 support mic/host: initial virtio 1.0

...t struct vring_used_elem *s) +{ + return copy_to_user((__force void __user *)dst, s, sizeof(*dst)) == 0 + ? 0 : -EFAULT; +} + +static inline int xfer_from_user(void *src, void *dst, size_t len) +{ + return copy_from_user(dst, (__force void *)src, len) == 0 ? 0 : + -EFAULT; +} + +static inline int xfer_to_user(void *dst, void *src, size_t len) +{ + return copy_to_user((__force void *)dst, src, len) == 0 ? 0 : + -EFAULT; +} + +/** + * vringh_init_user - initialize a vringh for a userspace vring. + * @vrh: the vringh to initialize. + * @features: the feature bits for this ring. + * @num: the number of ele...

...t struct vring_used_elem *s) +{ + return copy_to_user((__force void __user *)dst, s, sizeof(*dst)) == 0 + ? 0 : -EFAULT; +} + +static inline int xfer_from_user(void *src, void *dst, size_t len) +{ + return copy_from_user(dst, (__force void *)src, len) == 0 ? 0 : + -EFAULT; +} + +static inline int xfer_to_user(void *dst, void *src, size_t len) +{ + return copy_to_user((__force void *)dst, src, len) == 0 ? 0 : + -EFAULT; +} + +/** + * vringh_init_user - initialize a vringh for a userspace vring. + * @vrh: the vringh to initialize. + * @features: the feature bits for this ring. + * @num: the number of ele...

Hi all: This is an update version of vDPA support in kernel. vDPA device is a device that uses a datapath which complies with the virtio specifications with vendor specific control path. vDPA devices can be both physically located on the hardware or emulated by software. vDPA hardware devices are usually implemented through PCIE with the following types: - PF (Physical Function) - A single

Hi all: This is an update version of vDPA support in kernel. vDPA device is a device that uses a datapath which complies with the virtio specifications with vendor specific control path. vDPA devices can be both physically located on the hardware or emulated by software. vDPA hardware devices are usually implemented through PCIE with the following types: - PF (Physical Function) - A single

Hi all: This is an updated version of kernel support for vDPA device. Various changes were made based on the feedback since last verion. One major change is to drop the sysfs API and leave the management interface for future development, and introudce the incremental DMA bus operations. Please see changelog for more information. The work on vhost, IFCVF (intel VF driver for vDPA) and qemu is

This introduces vringh, which are generic accessors for virtio rings (host side). There's a host-side implementation in vhost, but it assumes that the rings are in userspace, and is tied to the vhost implementation. I have patches to adapt it to use vringh, but I'm pushing this in the next merge window for Sjur, who has CAIF patches which need it. This also includes a test program in

This introduces vringh, which are generic accessors for virtio rings (host side). There's a host-side implementation in vhost, but it assumes that the rings are in userspace, and is tied to the vhost implementation. I have patches to adapt it to use vringh, but I'm pushing this in the next merge window for Sjur, who has CAIF patches which need it. This also includes a test program in