Re: [Resend RFC PATCH V2 08/12] UIO/Hyper-V: Not load UIO HV driver in the isolation VM.
From: Stephen Hemminger <stephen@networkplumber.org>
Date: 2021-04-14 16:17:55
Also in:
linux-arch, linux-iommu, linux-mm, linux-scsi, lkml, netdev
On Wed, 14 Apr 2021 17:45:51 +0200 Greg KH [off-list ref] wrote:
On Wed, Apr 14, 2021 at 10:49:41AM -0400, Tianyu Lan wrote:quoted
From: Tianyu Lan <redacted> UIO HV driver should not load in the isolation VM for security reason. Return ENOTSUPP in the hv_uio_probe() in the isolation VM. Signed-off-by: Tianyu Lan <redacted>
This is debatable, in isolation VM's shouldn't userspace take responsibility to validate host communication. If that is an issue please participate with the DPDK community (main user of this) to make sure netvsc userspace driver has the required checks.