Re: [RFCv2 05/16] x86/kvm: Make VirtIO use DMA API in KVM guest

From: Christoph Hellwig
Date: Tue Oct 20 2020 - 04:07:33 EST


NAK. Any virtio implementation that needs special DMA OPS treatment
needs to set the VIRTIO_F_ACCESS_PLATFORM bit. The only reason the
Xen hack existst is because it slipped in a long time ago and we can't
fix that any more.