Re: [PATCH v1 1/8] virtio: Force only split mode with protected guest
From: Andy Lutomirski <luto@kernel.org>
Date: 2021-06-03 17:33:44
Also in:
linux-iommu, lkml
On 6/2/21 5:41 PM, Andi Kleen wrote:
Only allow split mode when in a protected guest. Followon patches harden the split mode code paths, and we don't want an malicious host to force anything else. Also disallow indirect mode for similar reasons.
I read this as "the virtio driver is buggy. Let's disable most of the buggy code in one special case in which we need a driver without bugs. In all the other cases (e.g. hardware virtio device connected over USB-C), driver bugs are still allowed." Can we just fix the driver without special cases? --Andy _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization