1*108a6481SCindy Lu===================== 2*108a6481SCindy LuVhost-vdpa Protocol 3*108a6481SCindy Lu===================== 4*108a6481SCindy Lu 5*108a6481SCindy LuIntroduction 6*108a6481SCindy Lu============= 7*108a6481SCindy LuvDPA(Virtual data path acceleration) device is a device that uses 8*108a6481SCindy Lua datapath which complies with the virtio specifications with vendor 9*108a6481SCindy Luspecific control path. vDPA devices can be both physically located on 10*108a6481SCindy Luthe hardware or emulated by software. 11*108a6481SCindy Lu 12*108a6481SCindy LuThis document describes the vDPA support in qemu 13*108a6481SCindy Lu 14*108a6481SCindy LuHere is the kernel commit here 15*108a6481SCindy Luhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4c8cf31885f69e86be0b5b9e6677a26797365e1d 16*108a6481SCindy Lu 17*108a6481SCindy LuTODO : More information will add later 18