diff options
| -rw-r--r-- | drivers/vhost/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/vhost/test.c | 4 | ||||
| -rw-r--r-- | drivers/vhost/vringh.c | 5 | ||||
| -rw-r--r-- | include/linux/vringh.h | 6 | ||||
| -rw-r--r-- | tools/virtio/Makefile | 5 | ||||
| -rw-r--r-- | tools/virtio/generated/autoconf.h | 0 |
6 files changed, 18 insertions, 4 deletions
diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig index 362b832f5338..f0404ce255d1 100644 --- a/drivers/vhost/Kconfig +++ b/drivers/vhost/Kconfig @@ -3,6 +3,8 @@ config VHOST_IOTLB tristate help Generic IOTLB implementation for vhost and vringh. + This option is selected by any driver which needs to support + an IOMMU in software. config VHOST_RING tristate diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c index 394e2e5c772d..9a3a09005e03 100644 --- a/drivers/vhost/test.c +++ b/drivers/vhost/test.c @@ -120,7 +120,7 @@ static int vhost_test_open(struct inode *inode, struct file *f) vqs[VHOST_TEST_VQ] = &n->vqs[VHOST_TEST_VQ]; n->vqs[VHOST_TEST_VQ].handle_kick = handle_vq_kick; vhost_dev_init(dev, vqs, VHOST_TEST_VQ_MAX, UIO_MAXIOV, - VHOST_TEST_PKT_WEIGHT, VHOST_TEST_WEIGHT); + VHOST_TEST_PKT_WEIGHT, VHOST_TEST_WEIGHT, NULL); f->private_data = n; @@ -225,7 +225,7 @@ static long vhost_test_reset_owner(struct vhost_test *n) { void *priv = NULL; long err; - struct vhost_umem *umem; + struct vhost_iotlb *umem; mutex_lock(&n->dev.mutex); err = vhost_dev_check_owner(&n->dev); diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c index ee0491f579ac..ba8e0d6cfd97 100644 --- a/drivers/vhost/vringh.c +++ b/drivers/vhost/vringh.c @@ -13,9 +13,11 @@ #include <linux/uaccess.h> #include <linux/slab.h> #include <linux/export.h> +#if IS_REACHABLE(CONFIG_VHOST_IOTLB) #include <linux/bvec.h> #include <linux/highmem.h> #include <linux/vhost_iotlb.h> +#endif #include <uapi/linux/virtio_config.h> static __printf(1,2) __cold void vringh_bad(const char *fmt, ...) @@ -1059,6 +1061,8 @@ int vringh_need_notify_kern(struct vringh *vrh) } EXPORT_SYMBOL(vringh_need_notify_kern); +#if IS_REACHABLE(CONFIG_VHOST_IOTLB) + static int iotlb_translate(const struct vringh *vrh, u64 addr, u64 len, struct bio_vec iov[], int iov_size, u32 perm) @@ -1416,5 +1420,6 @@ int vringh_need_notify_iotlb(struct vringh *vrh) } EXPORT_SYMBOL(vringh_need_notify_iotlb); +#endif MODULE_LICENSE("GPL"); diff --git a/include/linux/vringh.h b/include/linux/vringh.h index bd0503ca6f8f..9e2763d7c159 100644 --- a/include/linux/vringh.h +++ b/include/linux/vringh.h @@ -14,8 +14,10 @@ #include <linux/virtio_byteorder.h> #include <linux/uio.h> #include <linux/slab.h> +#if IS_REACHABLE(CONFIG_VHOST_IOTLB) #include <linux/dma-direction.h> #include <linux/vhost_iotlb.h> +#endif #include <asm/barrier.h> /* virtio_ring with information needed for host access. */ @@ -254,6 +256,8 @@ static inline __virtio64 cpu_to_vringh64(const struct vringh *vrh, u64 val) return __cpu_to_virtio64(vringh_is_little_endian(vrh), val); } +#if IS_REACHABLE(CONFIG_VHOST_IOTLB) + void vringh_set_iotlb(struct vringh *vrh, struct vhost_iotlb *iotlb); int vringh_init_iotlb(struct vringh *vrh, u64 features, @@ -284,4 +288,6 @@ void vringh_notify_disable_iotlb(struct vringh *vrh); int vringh_need_notify_iotlb(struct vringh *vrh); +#endif /* CONFIG_VHOST_IOTLB */ + #endif /* _LINUX_VRINGH_H */ diff --git a/tools/virtio/Makefile b/tools/virtio/Makefile index f33f32f1d208..b587b9a7a124 100644 --- a/tools/virtio/Makefile +++ b/tools/virtio/Makefile @@ -4,7 +4,7 @@ test: virtio_test vringh_test virtio_test: virtio_ring.o virtio_test.o vringh_test: vringh_test.o vringh.o virtio_ring.o -CFLAGS += -g -O2 -Werror -Wall -I. -I../include/ -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE +CFLAGS += -g -O2 -Werror -Wall -I. -I../include/ -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE -include ../../include/linux/kconfig.h vpath %.c ../../drivers/virtio ../../drivers/vhost mod: ${MAKE} -C `pwd`/../.. M=`pwd`/vhost_test V=${V} @@ -22,7 +22,8 @@ OOT_CONFIGS=\ CONFIG_VHOST=m \ CONFIG_VHOST_NET=n \ CONFIG_VHOST_SCSI=n \ - CONFIG_VHOST_VSOCK=n + CONFIG_VHOST_VSOCK=n \ + CONFIG_VHOST_RING=n OOT_BUILD=KCFLAGS="-I "${OOT_VHOST} ${MAKE} -C ${OOT_KSRC} V=${V} oot-build: echo "UNSUPPORTED! Don't use the resulting modules in production!" diff --git a/tools/virtio/generated/autoconf.h b/tools/virtio/generated/autoconf.h new file mode 100644 index 000000000000..e69de29bb2d1 --- /dev/null +++ b/tools/virtio/generated/autoconf.h |