On Fri, Oct 22, 2021 at 06:16:27AM -0400, Michael S. Tsirkin wrote:

On Wed, Oct 13, 2021 at 01:10:48PM +0100, Jean-Philippe Brucker wrote:

quoted

Support identity domains, allowing to only enable IOMMU protection for a
subset of endpoints (those assigned to userspace, for example). Users
may enable identity domains at compile time
(CONFIG_IOMMU_DEFAULT_PASSTHROUGH), boot time (iommu.passthrough=1) or
runtime (/sys/kernel/iommu_groups/*/type = identity).

I put this in my branch so it can get testing under linux-next,
but pls notice if the ballot does not conclude in time
for the merge window I won't send it to Linus.

Makes sense, thank you. I sent a new version of the spec change with
clarifications
https://www.mail-archive.com/virtio-dev@lists.oasis-open.org/msg07969.html

Thanks,
Jean

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