linux/samples/vfio-mdev, branch v5.1

samples/vfio-mdev/mtty: expand minor range when registering chrdev region

2019-02-12T20:21:18Z

Actually, total amount of available minor number for a single major is MINORMARK + 1. So expand minor range when registering chrdev region. Signed-off-by: Chengguang Xu Signed-off-by: Alex Williamson

samples/vfio-mdev/mdpy: expand minor range when registering chrdev region

2019-02-12T20:21:14Z

Actually, total amount of available minor number for a single major is MINORMARK + 1. So expand minor range when registering chrdev region. Signed-off-by: Chengguang Xu Signed-off-by: Alex Williamson

samples/vfio-mdev/mbochs: expand minor range when registering chrdev region

2019-02-12T20:21:05Z

Actually, total amount of available minor number for a single major is MINORMARK + 1. So expand minor range when registering chrdev region. Signed-off-by: Chengguang Xu Signed-off-by: Alex Williamson

vfio-mdev: Switch to use new generic UUID API

2019-02-05T18:51:56Z

There are new types and helpers that are supposed to be used in new code. As a preparation to get rid of legacy types and API functions do the conversion here. Cc: Kirti Wankhede Cc: Alex Williamson Signed-off-by: Andy Shevchenko Reviewed-by: Christoph Hellwig Signed-off-by: Alex Williamson

vfio-mdev/samples: Use u8 instead of char for handle functions

2018-12-17T18:07:13Z

Clang warns: samples/vfio-mdev/mtty.c:592:39: warning: implicit conversion from 'int' to 'char' changes value from 162 to -94 [-Wconstant-conversion] *buf = UART_MSR_DSR | UART_MSR_DDSR | UART_MSR_DCD; ~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~ 1 warning generated. Turns out that all uses of buf in this function ultimately end up stored or cast to an unsigned type. Just use u8, which has the same number of bits but can store this larger number so Clang no longer warns. Signed-off-by: Nathan Chancellor Signed-off-by: Alex Williamson

vfio: add edid support to mbochs sample driver

2018-10-11T16:22:36Z

Signed-off-by: Gerd Hoffmann Signed-off-by: Alex Williamson

sample: vfio-mdev: avoid deadlock in mdev_access()

2018-07-11T19:22:41Z

mdev_access() calls mbochs_get_page() with mdev_state->ops_lock held, while mbochs_get_page() locks the mutex by itself. It leads to unavoidable deadlock. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Signed-off-by: Alex Williamson

sample/vfio-mdev: Change return type to vm_fault_t

2018-07-04T16:42:04Z

convert mbochs_region_vm_fault and mbochs_dmabuf_vm_fault to return vm_fault_t type. Signed-off-by: Souptick Joarder Signed-off-by: Alex Williamson

sample/mdev/mbochs: add mbochs_kunmap_dmabuf

2018-06-26T06:27:23Z

There is no default implementation for dma_buf_ops->unmap. So add a function unmapping the page, otherwise we'll leak them. Signed-off-by: Gerd Hoffmann Signed-off-by: Alex Williamson

sample/mdev/mbochs: remove mbochs_kmap_atomic_dmabuf

2018-06-26T06:27:22Z

Atomic mapping interface for dmabufs will be removed. Signed-off-by: Gerd Hoffmann Signed-off-by: Alex Williamson