Anthony Liguori wrote: > This patch introduces a PCI DMA API and some generic code to support other DMA > APIs. Two types are introduced: PhysIOVector and IOVector. A DMA API > maps a PhysIOVector, which is composed of target_phys_addr_t, into an > IOVector, > which is composed of void *. > > This enables zero-copy IO to be preformed without introducing assumptions of > phys_ram_base. This API is at the PCI device level to enable support of > per-device IOMMU remapping. > > > + > +typedef struct IOVector > +{ > + int num; > + struct IOVectorElement { > + void *base; > + size_t len; > + } sg[0]; > +} IOVector; > + >
Can we use 'struct iovec' for the element type (with accessors for setting base+len, and reading base or len, so we can substitute the Windows version for that platform)? That will allow using the vector without additional translation or casts. -- error compiling committee.c: too many arguments to function ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel