在Linux系统中,当使用VFIO(Virtual Function I/O)框架进行设备的虚拟化操作时,有时可能会遇到”unix_physmem_region_iommu_register: ioctl (VFIO_IOMMU_MAP_DMA): Invalid argument”这个错误。该错误通常表示传递给VFIO_IOMMU_MAP_DMA的参数无效。 要解决这个问题,您可以尝试以下几点: 检查您的代码或配置是否正确...
unsignedlongi, count;void*vaddr;void**maps;structvfio_group_status group_status ={ .argsz=sizeof(group_status) };structvfio_iommu_type1_dma_map dma_map ={ .argsz=sizeof(dma_map) };structvfio_iommu_type1_dma_unmap dma_unmap ={ .argsz=sizeof(dma_unmap) };if(argc !=2) { usage...
#include <linux/iova.h> #include <linux/irq.h> #include <linux/list_sort.h> +#include <linux/memremap.h> #include <linux/mm.h> #include <linux/mutex.h> #include <linux/pci.h> @@ -1053,15 +1054,30 @@ static int __finalise_sg(struct device *dev, struct scatterlist *sg, int ...
GitHub mirror of the Linux Kernel's audit repository - kvm: fix excessive pages un-pinning in kvm_iommu_map error path. · linux-audit/audit-kernel@3d32e4d
> > include/linux/dma-mapping.h | 7 +++ > > lib/dma-debug.c | 48 ++++++++++ > > 9 files changed, 230 insertions(+), 13 deletions(-) > > > > -- > > 2.3.7 > > > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > > the body ...
> plenty megabytes of io-space to get out of a tight spot. That is, you > can queue many pages with that. If it is depleted you know you have at > least that many pages outstanding. So failing will just delay the next > pages. ...