From 6be3ffaa0e15c64f560904b025f5c50bef5886f9 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 15 Aug 2016 04:50:55 +0300 Subject: tools/virtio: add dma stubs Fixes build after recent IOMMU-related changes, mustly by adding more stubs. Signed-off-by: Michael S. Tsirkin --- tools/virtio/linux/virtio_config.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'tools/virtio/linux/virtio_config.h') diff --git a/tools/virtio/linux/virtio_config.h b/tools/virtio/linux/virtio_config.h index 57a6964a1e35..9ba11815e0a1 100644 --- a/tools/virtio/linux/virtio_config.h +++ b/tools/virtio/linux/virtio_config.h @@ -40,6 +40,19 @@ static inline void __virtio_clear_bit(struct virtio_device *vdev, #define virtio_has_feature(dev, feature) \ (__virtio_test_bit((dev), feature)) +/** + * virtio_has_iommu_quirk - determine whether this device has the iommu quirk + * @vdev: the device + */ +static inline bool virtio_has_iommu_quirk(const struct virtio_device *vdev) +{ + /* + * Note the reverse polarity of the quirk feature (compared to most + * other features), this is for compatibility with legacy systems. + */ + return !virtio_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM); +} + static inline bool virtio_is_little_endian(struct virtio_device *vdev) { return virtio_has_feature(vdev, VIRTIO_F_VERSION_1) || -- cgit