From 00e54c13c7c9030c4d5f7151467f2d85a3730e29 Mon Sep 17 00:00:00 2001 From: Arthur Hanson Rasmusson Date: Sun, 13 Sep 2026 18:36:21 -0400 Subject: 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 --- kernel/include/memory.h | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 kernel/include/memory.h (limited to 'kernel/include/memory.h') 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 \ No newline at end of file -- cgit v1.2.3