search for: vfio_device_get_info

...ecific platform device path to get the device information: fd = ioctl(group, VFIO_GROUP_GET_DEVICE_FD, "/soc at ffe000000/usb at 210000"); (whether the path is a device tree path or a sysfs path is up for discussion, e.g. "/sys/bus/platform/devices/ffe210000.usb") 2. VFIO_DEVICE_GET_INFO Don't think any changes are needed to VFIO_DEVICE_GET_INFO other than adding a new flag identifying a devices as a 'platform' device. This ioctl simply returns the number of regions and number of irqs. The number of regions corresponds to the number of regions that...

...ecific platform device path to get the device information: fd = ioctl(group, VFIO_GROUP_GET_DEVICE_FD, "/soc at ffe000000/usb at 210000"); (whether the path is a device tree path or a sysfs path is up for discussion, e.g. "/sys/bus/platform/devices/ffe210000.usb") 2. VFIO_DEVICE_GET_INFO Don't think any changes are needed to VFIO_DEVICE_GET_INFO other than adding a new flag identifying a devices as a 'platform' device. This ioctl simply returns the number of regions and number of irqs. The number of regions corresponds to the number of regions that...

Version 2 -VFIO_GROUP_GET_DEVICE_FD-- specified that the path is a sysfs path -VFIO_DEVICE_GET_INFO-- defined 2 flags instead of 1 -deleted VFIO_DEVICE_GET_DEVTREE_INFO ioctl -VFIO_DEVICE_GET_REGION_INFO-- updated as per AlexW's suggestion, defined 5 new flags and associated structs -VFIO_DEVICE_GET_IRQ_INFO-- updated as per AlexW's suggestion, defined 1 new flag and associate...

Version 2 -VFIO_GROUP_GET_DEVICE_FD-- specified that the path is a sysfs path -VFIO_DEVICE_GET_INFO-- defined 2 flags instead of 1 -deleted VFIO_DEVICE_GET_DEVTREE_INFO ioctl -VFIO_DEVICE_GET_REGION_INFO-- updated as per AlexW's suggestion, defined 5 new flags and associated structs -VFIO_DEVICE_GET_IRQ_INFO-- updated as per AlexW's suggestion, defined 1 new flag and associate...

...get the device information: > > fd = ioctl(group, VFIO_GROUP_GET_DEVICE_FD, "/soc at ffe000000/usb at 210000"); > > (whether the path is a device tree path or a sysfs path is up for > discussion, e.g. "/sys/bus/platform/devices/ffe210000.usb") > > 2. VFIO_DEVICE_GET_INFO > > Don't think any changes are needed to VFIO_DEVICE_GET_INFO other > than adding a new flag identifying a devices as a 'platform' > device. > > This ioctl simply returns the number of regions and number of irqs. > > The number of regions correspond...

...t the device information: > > fd = ioctl(group, VFIO_GROUP_GET_DEVICE_FD, "/soc at ffe000000/usb at 210000"); > > (whether the path is a device tree path or a sysfs path is up for > discussion, e.g. "/sys/bus/platform/devices/ffe210000.usb") > > 2. VFIO_DEVICE_GET_INFO > > Don't think any changes are needed to VFIO_DEVICE_GET_INFO other > than adding a new flag identifying a devices as a 'platform' > device. > > This ioctl simply returns the number of regions and number of irqs. > > The number of regions corre...

...e the Guest Device Model != Host. How do you inform the guest where the device is mapped in its physical address space, and handle GPA faults? - Mario On 7/3/2013 11:40 PM, Yoder Stuart-B08248 wrote: > Version 2 > -VFIO_GROUP_GET_DEVICE_FD-- specified that the path is a sysfs path > -VFIO_DEVICE_GET_INFO-- defined 2 flags instead of 1 > -deleted VFIO_DEVICE_GET_DEVTREE_INFO ioctl > -VFIO_DEVICE_GET_REGION_INFO-- updated as per AlexW's suggestion, > defined 5 new flags and associated structs > -VFIO_DEVICE_GET_IRQ_INFO-- updated as per AlexW's suggestion, > defined...

On Wed, 2013-07-03 at 21:40 +0000, Yoder Stuart-B08248 wrote: > Version 2 > -VFIO_GROUP_GET_DEVICE_FD-- specified that the path is a sysfs path > -VFIO_DEVICE_GET_INFO-- defined 2 flags instead of 1 > -deleted VFIO_DEVICE_GET_DEVTREE_INFO ioctl > -VFIO_DEVICE_GET_REGION_INFO-- updated as per AlexW's suggestion, > defined 5 new flags and associated structs > -VFIO_DEVICE_GET_IRQ_INFO-- updated as per AlexW's suggestion, > defined...

...>> >> fd = ioctl(group, VFIO_GROUP_GET_DEVICE_FD, "/soc at ffe000000/usb at 210000"); >> >> (whether the path is a device tree path or a sysfs path is up for >> discussion, e.g. "/sys/bus/platform/devices/ffe210000.usb") >> >> 2. VFIO_DEVICE_GET_INFO >> >> Don't think any changes are needed to VFIO_DEVICE_GET_INFO other >> than adding a new flag identifying a devices as a 'platform' >> device. >> >> This ioctl simply returns the number of regions and number of irqs. >> >>...

...>> >> fd = ioctl(group, VFIO_GROUP_GET_DEVICE_FD, "/soc at ffe000000/usb at 210000"); >> >> (whether the path is a device tree path or a sysfs path is up for >> discussion, e.g. "/sys/bus/platform/devices/ffe210000.usb") >> >> 2. VFIO_DEVICE_GET_INFO >> >> Don't think any changes are needed to VFIO_DEVICE_GET_INFO other >> than adding a new flag identifying a devices as a 'platform' >> device. >> >> This ioctl simply returns the number of regions and number of irqs. >> >>...

...ces/ffe210000.usb") Doesn't VFIO need to operate on an actual Linux device, rather than just an OF node? Are we going to have a fixed assumption that you always want all the children of the node corresponding to the assigned device, or will it be possible to exclude some? > 2. VFIO_DEVICE_GET_INFO > > Don't think any changes are needed to VFIO_DEVICE_GET_INFO other > than adding a new flag identifying a devices as a 'platform' > device. > > This ioctl simply returns the number of regions and number of irqs. > > The number of regions corre...

...+ void __user *argp = (void __user *)arg; > + struct vhost_mdev *vdpa; > + unsigned long minsz; > + int ret = 0; > + > + if (!mdev) > + return -EINVAL; > + > + vdpa = mdev_get_drvdata(mdev); > + if (!vdpa) > + return -ENODEV; > + > + switch (cmd) { > + case VFIO_DEVICE_GET_INFO: > + { > + struct vfio_device_info info; > + > + minsz = offsetofend(struct vfio_device_info, num_irqs); > + > + if (copy_from_user(&info, (void __user *)arg, minsz)) { > + ret = -EFAULT; > + break; > + } > + > + if (info.argsz < minsz) { > + re...

...+ void __user *argp = (void __user *)arg; > + struct vhost_mdev *vdpa; > + unsigned long minsz; > + int ret = 0; > + > + if (!mdev) > + return -EINVAL; > + > + vdpa = mdev_get_drvdata(mdev); > + if (!vdpa) > + return -ENODEV; > + > + switch (cmd) { > + case VFIO_DEVICE_GET_INFO: > + { > + struct vfio_device_info info; > + > + minsz = offsetofend(struct vfio_device_info, num_irqs); > + > + if (copy_from_user(&info, (void __user *)arg, minsz)) { > + ret = -EFAULT; > + break; > + } > + > + if (info.argsz < minsz) { > + re...

...; Are we going to have a fixed assumption that you always want all the > children of the node corresponding to the assigned device, or will it > be possible to exclude some? My assumption is that you always get all the children of the node corresponding to the assigned device. > > 2. VFIO_DEVICE_GET_INFO > > > > Don't think any changes are needed to VFIO_DEVICE_GET_INFO other > > than adding a new flag identifying a devices as a 'platform' > > device. > > > > This ioctl simply returns the number of regions and number of irqs. > > &gt...

...; Are we going to have a fixed assumption that you always want all the > children of the node corresponding to the assigned device, or will it > be possible to exclude some? My assumption is that you always get all the children of the node corresponding to the assigned device. > > 2. VFIO_DEVICE_GET_INFO > > > > Don't think any changes are needed to VFIO_DEVICE_GET_INFO other > > than adding a new flag identifying a devices as a 'platform' > > device. > > > > This ioctl simply returns the number of regions and number of irqs. > > &gt...

...st_mdev *vdpa; > > + unsigned long minsz; > > + int ret = 0; > > + > > + if (!mdev) > > + return -EINVAL; > > + > > + vdpa = mdev_get_drvdata(mdev); > > + if (!vdpa) > > + return -ENODEV; > > + > > + switch (cmd) { > > + case VFIO_DEVICE_GET_INFO: > > + { > > + struct vfio_device_info info; > > + > > + minsz = offsetofend(struct vfio_device_info, num_irqs); > > + > > + if (copy_from_user(&info, (void __user *)arg, minsz)) { > > + ret = -EFAULT; > > + break; > > + } > >...

...unsigned int cmd, unsigned long arg) > +{ > + int ret = 0; > + unsigned long minsz; > + struct vdpa_dev *vdpa; > + > + if (!mdev) > + return -EINVAL; > + > + vdpa = mdev_get_drvdata(mdev); > + if (!vdpa) > + return -ENODEV; > + > + switch (cmd) { > + case VFIO_DEVICE_GET_INFO: > + { > + struct vfio_device_info info; > + > + minsz = offsetofend(struct vfio_device_info, num_irqs); > + > + if (copy_from_user(&info, (void __user *)arg, minsz)) > + return -EFAULT; > + > + if (info.argsz < minsz) > + return -EINVAL; > + > +...

...: -1); + + return 0; +} + +long vdpa_ioctl(struct mdev_device *mdev, unsigned int cmd, unsigned long arg) +{ + int ret = 0; + unsigned long minsz; + struct vdpa_dev *vdpa; + + if (!mdev) + return -EINVAL; + + vdpa = mdev_get_drvdata(mdev); + if (!vdpa) + return -ENODEV; + + switch (cmd) { + case VFIO_DEVICE_GET_INFO: + { + struct vfio_device_info info; + + minsz = offsetofend(struct vfio_device_info, num_irqs); + + if (copy_from_user(&info, (void __user *)arg, minsz)) + return -EFAULT; + + if (info.argsz < minsz) + return -EINVAL; + + ret = vdpa_get_device_info(mdev, &info); + if (ret) +...

...: -1); + + return 0; +} + +long vdpa_ioctl(struct mdev_device *mdev, unsigned int cmd, unsigned long arg) +{ + int ret = 0; + unsigned long minsz; + struct vdpa_dev *vdpa; + + if (!mdev) + return -EINVAL; + + vdpa = mdev_get_drvdata(mdev); + if (!vdpa) + return -ENODEV; + + switch (cmd) { + case VFIO_DEVICE_GET_INFO: + { + struct vfio_device_info info; + + minsz = offsetofend(struct vfio_device_info, num_irqs); + + if (copy_from_user(&info, (void __user *)arg, minsz)) + return -EFAULT; + + if (info.argsz < minsz) + return -EINVAL; + + ret = vdpa_get_device_info(mdev, &info); + if (ret) +...

...unsigned int cmd, unsigned long arg) > +{ > + int ret = 0; > + unsigned long minsz; > + struct vdpa_dev *vdpa; > + > + if (!mdev) > + return -EINVAL; > + > + vdpa = mdev_get_drvdata(mdev); > + if (!vdpa) > + return -ENODEV; > + > + switch (cmd) { > + case VFIO_DEVICE_GET_INFO: > + { > + struct vfio_device_info info; > + > + minsz = offsetofend(struct vfio_device_info, num_irqs); > + > + if (copy_from_user(&info, (void __user *)arg, minsz)) > + return -EFAULT; > + > + if (info.argsz < minsz) > + return -EINVAL; > + > +...