与IOMMU_MAP_LOGICAL_RANGE_EX不同,这可以保证不会执行任何内存分配,因为假定之前已使用 IOMMU_RESERVE_LOGICAL_ADDRESS_RANGE 执行这些内存分配。 语法 C++ 复制 IOMMU_MAP_RESERVED_LOGICAL_RANGE IommuMapReservedLogicalRange; NTSTATUS IommuMapReservedLogicalRange( [in, out] PIOMMU_DMA_LOGICAL_ADDRESS_TOKEN ...
typedef enum _IOMMU_MAP_PHYSICAL_ADDRESS_TYPE { MapPhysicalAddressTypeMdl, MapPhysicalAddressTypeContiguousRange, MapPhysicalAddressTypePfn, MapPhysicalAddressTypeMax } IOMMU_MAP_PHYSICAL_ADDRESS_TYPE, *PIOMMU_MAP_PHYSICAL_ADDRESS_TYPE; Константы Кестені кеңейту ...
IOMMU_MAP_PHYSICAL_ADDRESS代表要對應至邏輯地址的實體位址。 它由 IOMMU_MAP_LOGICAL_RANGE_EX 和IOMMU_MAP_IDENTITY_RANGE_EX 使用。語法C++ 複製 typedef struct _IOMMU_MAP_PHYSICAL_ADDRESS { IOMMU_MAP_PHYSICAL_ADDRESS_TYPE MapType; union { struct { PMDL Mdl; } Mdl; struct { PHYSICAL_ADDRESS ...
IOMMU_INTERFACE_STATE_CHANGE_FIELDS union IOMMU_MAP_IDENTITY_RANGE callback function IOMMU_MAP_IDENTITY_RANGE_EX callback function IOMMU_MAP_LOGICAL_RANGE callback function IOMMU_MAP_LOGICAL_RANGE_EX callback function IOMMU_MAP_PHYSICAL_ADDRESS structure IOMMU_MAP_PHYSICAL_ADDRESS_TYPE enumeration ...
ioctl(container, VFIO_IOMMU_MAP_DMA, &dma_map); 很明显,这个概念空间包括container和group两个概念,vfio_container是访问的上下文,vfio_group是vfio对iommu_group的表述。 [vfio_iommu_type1.c] 1staticlongvfio_iommu_type1_ioctl(void*iommu_data,2unsignedintcmd, unsignedlongarg)3{4structvfio_iommu *iom...
ret=ioctl(container, VFIO_SET_IOMMU, VFIO_TYPE1_IOMMU);if(ret) { printf("Failed to set IOMMU\n");returnret; }/*Test code*/dma_map.flags= VFIO_DMA_MAP_FLAG_READ |VFIO_DMA_MAP_FLAG_WRITE; dma_map.size=MAP_CHUNK; dma_unmap.size=MAP_SIZE; ...
Call pci_p2pdma_map_segment() when a PCI P2PDMA page is seen so the bus address is set in the dma address and the segment is marked with sg_dma_mark_bus_address(). iommu_map_sg() will then skip these segments. Then, in __finalise_sg(), copy the dma address from the input seg...
IOMMU map-in may be overlapped with second tier memory access, such that the two operations are at least partially performed at the same time. For example, when a second tier memory read into a storage device controller internal buffer is initiated, an IOMMU mapping may be built simultaneously...
Caused by: Failed to realize vfio pci device Caused by: Failed to register bars Caused by: Failed to add guest memory region map into IOMMU table Caused by: Vfio ioctl failed: VFIO_IOMMU_MAP_DMA, result is: -1 【附件信息】 比如系统message日志/组件日志、dump信息、图片等...
rc =ion_map_iommu(gemini_client, *ionhandle, CAMERA_DOMAIN, GEN_POOL, SZ_4K,0, &paddr, (unsignedlong*)&size,0,0);if(rc <0) { GMN_PR_ERR("%s: get_pmem_file fd %d error %d\n", __func__, fd, rc);gotoerror1; }/* validate user input */if(len > size) { ...