mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git
synced 2026-04-17 22:24:18 -04:00
03b7c2d763
Replace scattered string literals with MODE_* macros in iommu.h. This provides a single source of truth for IOMMU mode name strings. Signed-off-by: Alex Mastro <amastro@fb.com> Reviewed-by: David Matlack <dmatlack@google.com> Tested-by: David Matlack <dmatlack@google.com> Link: https://lore.kernel.org/r/20260114-map-mmio-test-v3-1-44e036d95e64@fb.com Signed-off-by: Alex Williamson <alex@shazbot.org>
83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
#ifndef SELFTESTS_VFIO_LIB_INCLUDE_LIBVFIO_IOMMU_H
|
|
#define SELFTESTS_VFIO_LIB_INCLUDE_LIBVFIO_IOMMU_H
|
|
|
|
#include <linux/list.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <libvfio/assert.h>
|
|
|
|
typedef u64 iova_t;
|
|
|
|
struct iommu_mode {
|
|
const char *name;
|
|
const char *container_path;
|
|
unsigned long iommu_type;
|
|
};
|
|
|
|
extern const char *default_iommu_mode;
|
|
|
|
struct dma_region {
|
|
struct list_head link;
|
|
void *vaddr;
|
|
iova_t iova;
|
|
u64 size;
|
|
};
|
|
|
|
struct iommu {
|
|
const struct iommu_mode *mode;
|
|
int container_fd;
|
|
int iommufd;
|
|
u32 ioas_id;
|
|
struct list_head dma_regions;
|
|
};
|
|
|
|
struct iommu *iommu_init(const char *iommu_mode);
|
|
void iommu_cleanup(struct iommu *iommu);
|
|
|
|
int __iommu_map(struct iommu *iommu, struct dma_region *region);
|
|
|
|
static inline void iommu_map(struct iommu *iommu, struct dma_region *region)
|
|
{
|
|
VFIO_ASSERT_EQ(__iommu_map(iommu, region), 0);
|
|
}
|
|
|
|
int __iommu_unmap(struct iommu *iommu, struct dma_region *region, u64 *unmapped);
|
|
|
|
static inline void iommu_unmap(struct iommu *iommu, struct dma_region *region)
|
|
{
|
|
VFIO_ASSERT_EQ(__iommu_unmap(iommu, region, NULL), 0);
|
|
}
|
|
|
|
int __iommu_unmap_all(struct iommu *iommu, u64 *unmapped);
|
|
|
|
static inline void iommu_unmap_all(struct iommu *iommu)
|
|
{
|
|
VFIO_ASSERT_EQ(__iommu_unmap_all(iommu, NULL), 0);
|
|
}
|
|
|
|
int __iommu_hva2iova(struct iommu *iommu, void *vaddr, iova_t *iova);
|
|
iova_t iommu_hva2iova(struct iommu *iommu, void *vaddr);
|
|
|
|
struct iommu_iova_range *iommu_iova_ranges(struct iommu *iommu, u32 *nranges);
|
|
|
|
#define MODE_VFIO_TYPE1_IOMMU "vfio_type1_iommu"
|
|
#define MODE_VFIO_TYPE1V2_IOMMU "vfio_type1v2_iommu"
|
|
#define MODE_IOMMUFD_COMPAT_TYPE1 "iommufd_compat_type1"
|
|
#define MODE_IOMMUFD_COMPAT_TYPE1V2 "iommufd_compat_type1v2"
|
|
#define MODE_IOMMUFD "iommufd"
|
|
|
|
/*
|
|
* Generator for VFIO selftests fixture variants that replicate across all
|
|
* possible IOMMU modes. Tests must define FIXTURE_VARIANT_ADD_IOMMU_MODE()
|
|
* which should then use FIXTURE_VARIANT_ADD() to create the variant.
|
|
*/
|
|
#define FIXTURE_VARIANT_ADD_ALL_IOMMU_MODES(...) \
|
|
FIXTURE_VARIANT_ADD_IOMMU_MODE(vfio_type1_iommu, ##__VA_ARGS__); \
|
|
FIXTURE_VARIANT_ADD_IOMMU_MODE(vfio_type1v2_iommu, ##__VA_ARGS__); \
|
|
FIXTURE_VARIANT_ADD_IOMMU_MODE(iommufd_compat_type1, ##__VA_ARGS__); \
|
|
FIXTURE_VARIANT_ADD_IOMMU_MODE(iommufd_compat_type1v2, ##__VA_ARGS__); \
|
|
FIXTURE_VARIANT_ADD_IOMMU_MODE(iommufd, ##__VA_ARGS__)
|
|
|
|
#endif /* SELFTESTS_VFIO_LIB_INCLUDE_LIBVFIO_IOMMU_H */
|