diff options
Diffstat (limited to 'tools/virtio')
| -rw-r--r-- | tools/virtio/Makefile | 8 | ||||
| -rw-r--r-- | tools/virtio/linux/compiler.h | 8 | ||||
| -rw-r--r-- | tools/virtio/linux/cpumask.h | 4 | ||||
| -rw-r--r-- | tools/virtio/linux/device.h | 8 | ||||
| -rw-r--r-- | tools/virtio/linux/dma-mapping.h | 4 | ||||
| -rw-r--r-- | tools/virtio/linux/kernel.h | 16 | ||||
| -rw-r--r-- | tools/virtio/linux/module.h | 2 | ||||
| -rw-r--r-- | tools/virtio/linux/ucopysize.h | 21 | ||||
| -rw-r--r-- | tools/virtio/linux/virtio.h | 73 | ||||
| -rw-r--r-- | tools/virtio/linux/virtio_config.h | 102 | ||||
| -rw-r--r-- | tools/virtio/oot-stubs.h | 10 |
11 files changed, 79 insertions, 177 deletions
diff --git a/tools/virtio/Makefile b/tools/virtio/Makefile index e25e99c1c3b7..2cac5fd4b979 100644 --- a/tools/virtio/Makefile +++ b/tools/virtio/Makefile @@ -20,8 +20,9 @@ CFLAGS += -g -O2 -Werror -Wno-maybe-uninitialized -Wall -I. -I../include/ -I ../ CFLAGS += -pthread LDFLAGS += -pthread vpath %.c ../../drivers/virtio ../../drivers/vhost +BUILD=KCFLAGS="-I "`pwd`/../../drivers/vhost ${MAKE} -C `pwd`/../.. V=${V} mod: - ${MAKE} -C `pwd`/../.. M=`pwd`/vhost_test V=${V} + ${BUILD} M=`pwd`/vhost_test #oot: build vhost as an out of tree module for a distro kernel #no effort is taken to make it actually build or work, but tends to mostly work @@ -37,8 +38,9 @@ OOT_CONFIGS=\ CONFIG_VHOST_NET=n \ CONFIG_VHOST_SCSI=n \ CONFIG_VHOST_VSOCK=n \ - CONFIG_VHOST_RING=n -OOT_BUILD=KCFLAGS="-I "${OOT_VHOST} ${MAKE} -C ${OOT_KSRC} V=${V} + CONFIG_VHOST_RING=n \ + CONFIG_VHOST_VDPA=n +OOT_BUILD=KCFLAGS="-include "`pwd`"/oot-stubs.h -I "${OOT_VHOST} ${MAKE} -C ${OOT_KSRC} V=${V} oot-build: echo "UNSUPPORTED! Don't use the resulting modules in production!" ${OOT_BUILD} M=`pwd`/vhost_test diff --git a/tools/virtio/linux/compiler.h b/tools/virtio/linux/compiler.h index 204ef0e9f542..0f25db473f55 100644 --- a/tools/virtio/linux/compiler.h +++ b/tools/virtio/linux/compiler.h @@ -2,7 +2,11 @@ #ifndef LINUX_COMPILER_H #define LINUX_COMPILER_H +/* Avoid redefinition warnings */ +#undef __user #include "../../../include/linux/compiler_types.h" +#undef __user +#define __user #define WRITE_ONCE(var, val) \ (*((volatile typeof(val) *)(&(var))) = (val)) @@ -31,8 +35,10 @@ */ #define data_race(expr) \ ({ \ - __auto_type __v = (expr); \ + auto __v = (expr); \ __v; \ }) +#define __must_check + #endif diff --git a/tools/virtio/linux/cpumask.h b/tools/virtio/linux/cpumask.h index 307da69d6b26..38ffc00e149d 100644 --- a/tools/virtio/linux/cpumask.h +++ b/tools/virtio/linux/cpumask.h @@ -4,4 +4,8 @@ #include <linux/kernel.h> +struct cpumask { + unsigned long bits[1]; +}; + #endif /* _LINUX_CPUMASK_H */ diff --git a/tools/virtio/linux/device.h b/tools/virtio/linux/device.h index 4ad7e1df0db5..075c2140d975 100644 --- a/tools/virtio/linux/device.h +++ b/tools/virtio/linux/device.h @@ -1,2 +1,10 @@ #ifndef LINUX_DEVICE_H + +struct device { + void *parent; +}; + +struct device_driver { + const char *name; +}; #endif diff --git a/tools/virtio/linux/dma-mapping.h b/tools/virtio/linux/dma-mapping.h index 095958461788..fddfa2fbb276 100644 --- a/tools/virtio/linux/dma-mapping.h +++ b/tools/virtio/linux/dma-mapping.h @@ -22,6 +22,7 @@ enum dma_data_direction { #define dma_free_coherent(d, s, p, h) kfree(p) #define dma_map_page(d, p, o, s, dir) (page_to_phys(p) + (o)) +#define dma_map_page_attrs(d, p, o, s, dir, a) (page_to_phys(p) + (o)) #define dma_map_single(d, p, s, dir) (virt_to_phys(p)) #define dma_map_single_attrs(d, p, s, dir, a) (virt_to_phys(p)) @@ -29,6 +30,9 @@ enum dma_data_direction { #define dma_unmap_single(d, a, s, r) do { (void)(d); (void)(a); (void)(s); (void)(r); } while (0) #define dma_unmap_page(d, a, s, r) do { (void)(d); (void)(a); (void)(s); (void)(r); } while (0) +#define dma_unmap_page_attrs(d, a, s, r, t) do { \ + (void)(d); (void)(a); (void)(s); (void)(r); (void)(t); \ +} while (0) #define sg_dma_address(sg) (0) #define sg_dma_len(sg) (0) diff --git a/tools/virtio/linux/kernel.h b/tools/virtio/linux/kernel.h index 6702008f7f5c..416d02703f61 100644 --- a/tools/virtio/linux/kernel.h +++ b/tools/virtio/linux/kernel.h @@ -14,6 +14,7 @@ #include <linux/log2.h> #include <linux/types.h> #include <linux/overflow.h> +#include <linux/limits.h> #include <linux/list.h> #include <linux/printk.h> #include <linux/bug.h> @@ -135,6 +136,21 @@ static inline void *krealloc_array(void *p, size_t new_n, size_t new_size, gfp_t #define dev_warn(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__) #define dev_warn_once(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__) +#define dev_WARN_ONCE(dev, condition, format...) \ + WARN_ONCE(condition, format) + +static inline bool is_vmalloc_addr(const void *x) +{ + return false; +} + +#define might_sleep() do { } while (0) + +static inline void synchronize_rcu(void) +{ + assert(0); +} + #define min(x, y) ({ \ typeof(x) _min1 = (x); \ typeof(y) _min2 = (y); \ diff --git a/tools/virtio/linux/module.h b/tools/virtio/linux/module.h index b91681fc1571..b842ae9d870c 100644 --- a/tools/virtio/linux/module.h +++ b/tools/virtio/linux/module.h @@ -1,6 +1,8 @@ /* SPDX-License-Identifier: GPL-2.0 */ #include <linux/export.h> +struct module; + #define MODULE_LICENSE(__MODULE_LICENSE_value) \ static __attribute__((unused)) const char *__MODULE_LICENSE_name = \ __MODULE_LICENSE_value diff --git a/tools/virtio/linux/ucopysize.h b/tools/virtio/linux/ucopysize.h new file mode 100644 index 000000000000..8beb7755d060 --- /dev/null +++ b/tools/virtio/linux/ucopysize.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LINUX_UCOPYSIZE_H__ +#define __LINUX_UCOPYSIZE_H__ + +#include <linux/bug.h> + +static inline void check_object_size(const void *ptr, unsigned long n, + bool to_user) +{ } + +static inline void copy_overflow(int size, unsigned long count) +{ +} + +static __always_inline __must_check bool +check_copy_size(const void *addr, size_t bytes, bool is_source) +{ + return true; +} + +#endif /* __LINUX_UCOPYSIZE_H__ */ diff --git a/tools/virtio/linux/virtio.h b/tools/virtio/linux/virtio.h index 5d3440f474dd..d3029c944589 100644 --- a/tools/virtio/linux/virtio.h +++ b/tools/virtio/linux/virtio.h @@ -1,72 +1 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef LINUX_VIRTIO_H -#define LINUX_VIRTIO_H -#include <linux/scatterlist.h> -#include <linux/kernel.h> -#include <linux/spinlock.h> - -struct device { - void *parent; -}; - -struct virtio_device { - struct device dev; - u64 features; - struct list_head vqs; - spinlock_t vqs_list_lock; - const struct virtio_config_ops *config; -}; - -struct virtqueue { - struct list_head list; - void (*callback)(struct virtqueue *vq); - const char *name; - struct virtio_device *vdev; - unsigned int index; - unsigned int num_free; - unsigned int num_max; - void *priv; - bool reset; -}; - -/* Interfaces exported by virtio_ring. */ -int virtqueue_add_sgs(struct virtqueue *vq, - struct scatterlist *sgs[], - unsigned int out_sgs, - unsigned int in_sgs, - void *data, - gfp_t gfp); - -int virtqueue_add_outbuf(struct virtqueue *vq, - struct scatterlist sg[], unsigned int num, - void *data, - gfp_t gfp); - -int virtqueue_add_inbuf(struct virtqueue *vq, - struct scatterlist sg[], unsigned int num, - void *data, - gfp_t gfp); - -bool virtqueue_kick(struct virtqueue *vq); - -void *virtqueue_get_buf(struct virtqueue *vq, unsigned int *len); - -void virtqueue_disable_cb(struct virtqueue *vq); - -bool virtqueue_enable_cb(struct virtqueue *vq); -bool virtqueue_enable_cb_delayed(struct virtqueue *vq); - -void *virtqueue_detach_unused_buf(struct virtqueue *vq); -struct virtqueue *vring_new_virtqueue(unsigned int index, - unsigned int num, - unsigned int vring_align, - struct virtio_device *vdev, - bool weak_barriers, - bool ctx, - void *pages, - bool (*notify)(struct virtqueue *vq), - void (*callback)(struct virtqueue *vq), - const char *name); -void vring_del_virtqueue(struct virtqueue *vq); - -#endif +#include <../../include/linux/virtio.h> diff --git a/tools/virtio/linux/virtio_config.h b/tools/virtio/linux/virtio_config.h index 42a564f22f2d..a0cd3f9a3111 100644 --- a/tools/virtio/linux/virtio_config.h +++ b/tools/virtio/linux/virtio_config.h @@ -1,101 +1 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef LINUX_VIRTIO_CONFIG_H -#define LINUX_VIRTIO_CONFIG_H -#include <linux/virtio_byteorder.h> -#include <linux/virtio.h> -#include <uapi/linux/virtio_config.h> - -struct virtio_config_ops { - int (*disable_vq_and_reset)(struct virtqueue *vq); - int (*enable_vq_after_reset)(struct virtqueue *vq); -}; - -/* - * __virtio_test_bit - helper to test feature bits. For use by transports. - * Devices should normally use virtio_has_feature, - * which includes more checks. - * @vdev: the device - * @fbit: the feature bit - */ -static inline bool __virtio_test_bit(const struct virtio_device *vdev, - unsigned int fbit) -{ - return vdev->features & (1ULL << fbit); -} - -/** - * __virtio_set_bit - helper to set feature bits. For use by transports. - * @vdev: the device - * @fbit: the feature bit - */ -static inline void __virtio_set_bit(struct virtio_device *vdev, - unsigned int fbit) -{ - vdev->features |= (1ULL << fbit); -} - -/** - * __virtio_clear_bit - helper to clear feature bits. For use by transports. - * @vdev: the device - * @fbit: the feature bit - */ -static inline void __virtio_clear_bit(struct virtio_device *vdev, - unsigned int fbit) -{ - vdev->features &= ~(1ULL << fbit); -} - -#define virtio_has_feature(dev, feature) \ - (__virtio_test_bit((dev), feature)) - -/** - * virtio_has_dma_quirk - determine whether this device has the DMA quirk - * @vdev: the device - */ -static inline bool virtio_has_dma_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_ACCESS_PLATFORM); -} - -static inline bool virtio_is_little_endian(struct virtio_device *vdev) -{ - return virtio_has_feature(vdev, VIRTIO_F_VERSION_1) || - virtio_legacy_is_little_endian(); -} - -/* Memory accessors */ -static inline u16 virtio16_to_cpu(struct virtio_device *vdev, __virtio16 val) -{ - return __virtio16_to_cpu(virtio_is_little_endian(vdev), val); -} - -static inline __virtio16 cpu_to_virtio16(struct virtio_device *vdev, u16 val) -{ - return __cpu_to_virtio16(virtio_is_little_endian(vdev), val); -} - -static inline u32 virtio32_to_cpu(struct virtio_device *vdev, __virtio32 val) -{ - return __virtio32_to_cpu(virtio_is_little_endian(vdev), val); -} - -static inline __virtio32 cpu_to_virtio32(struct virtio_device *vdev, u32 val) -{ - return __cpu_to_virtio32(virtio_is_little_endian(vdev), val); -} - -static inline u64 virtio64_to_cpu(struct virtio_device *vdev, __virtio64 val) -{ - return __virtio64_to_cpu(virtio_is_little_endian(vdev), val); -} - -static inline __virtio64 cpu_to_virtio64(struct virtio_device *vdev, u64 val) -{ - return __cpu_to_virtio64(virtio_is_little_endian(vdev), val); -} - -#endif +#include "../../include/linux/virtio_config.h" diff --git a/tools/virtio/oot-stubs.h b/tools/virtio/oot-stubs.h new file mode 100644 index 000000000000..69e059cd14d6 --- /dev/null +++ b/tools/virtio/oot-stubs.h @@ -0,0 +1,10 @@ +#include <linux/bug.h> +#include <linux/string.h> +#include <linux/virtio_features.h> + +#ifndef VIRTIO_FEATURES_BITS +#define VIRTIO_FEATURES_BITS 128 +#endif +#ifndef VIRTIO_U64 +#define VIRTIO_U64(b) ((b) >> 6) +#endif |