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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-09-13 18:36:21 -0400 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-09-13 18:36:21 -0400 |
| commit | 00e54c13c7c9030c4d5f7151467f2d85a3730e29 (patch) | |
| tree | 17a45239df8d2e4912ff3697ed06e85a10b969de /kernel/include/memory.h | |
| download | open-iov-00e54c13c7c9030c4d5f7151467f2d85a3730e29.tar.gz open-iov-00e54c13c7c9030c4d5f7151467f2d85a3730e29.zip | |
Initial commit: Open-IOV vGPU-IO complete stack
- Firmware decompilation: GSP 570.144W (28.5MB ELF, RV64IMAC), 132 decompiled C files
- Kernel modules: nvidia.ko (34MB, OpenRM), open-iov-vfio.ko (2.8MB, VFIO mdev), gsp-vgpu.ko (1.8MB, guest driver)
- Userspace: libiov.so/libvgpu.so (76KB), example_vgpu (28KB), rpc_emulator.c
- PCI config space emulation (256B with PM, MSI, MSI-X, PCIe caps)
- 12 RPC types fully mapped from firmware decompilation
- BAR trap, WPR, scheduling, notification, migration emulation
- Helper scripts: load_vgpu_stack, create_mdev, launch_qemu_vgpu, test_vgpu_stack, setup_guest_driver, unload_vgpu_stack
- Architecture documentation
- Wiki: 10 technical documents
- Git LFS for large binaries (.ko, .bin, .iso, .img, .o, ghidra repos)
- nvidia-open-gpu-kernel-modules as submodule
Diffstat (limited to 'kernel/include/memory.h')
| -rw-r--r-- | kernel/include/memory.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/kernel/include/memory.h b/kernel/include/memory.h new file mode 100644 index 0000000..14a35e9 --- /dev/null +++ b/kernel/include/memory.h @@ -0,0 +1,45 @@ +#ifndef _NV_VGPU_MEMORY_H_ +#define _NV_VGPU_MEMORY_H_ + +#include "nvidia-vgpu-vfio.h" + +#define NV_VGPU_MAX_MAPPINGS 1024 + +struct nv_vgpu_mapping { + u64 gpa; + u64 iova; + u64 size; + struct page **pages; + int page_count; + bool pinned; + bool mapped; + struct list_head list; +}; + +struct nv_vgpu_mm_ctx { + struct nv_vgpu_device *vgpu; + struct mutex lock; + struct list_head mappings; + u32 mapping_count; + struct iommu_domain *iommu_domain; + struct dma_iommu_mapping *dma_mapping; + bool use_simple; +}; + +int nv_vgpu_memory_init(struct nv_vgpu_device *vgpu); +void nv_vgpu_memory_cleanup(struct nv_vgpu_device *vgpu); + +int nv_vgpu_memory_map(struct nv_vgpu_device *vgpu, u64 gpa, u64 size, u64 *iova); +int nv_vgpu_memory_unmap(struct nv_vgpu_device *vgpu, u64 iova, u64 size); + +int nv_vgpu_memory_pin(struct nv_vgpu_device *vgpu, u64 gpa, u64 size); +int nv_vgpu_memory_unpin(struct nv_vgpu_device *vgpu, u64 gpa, u64 size); + +int nv_vgpu_memory_mmap(struct nv_vgpu_device *vgpu, struct vm_area_struct *vma); + +static inline struct nv_vgpu_mm_ctx *vgpu_to_mm_ctx(struct nv_vgpu_device *vgpu) +{ + return vgpu->mm_ctx; +} + +#endif
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