Re: [virtio-comment] [PATCH 0/1] virtio-pmem: Support PCI BAR-relative addresses

[Cornelia Huck <cohuck@redhat.com>]

On Wed, Jul 21 2021, tstark@linux.microsoft.com wrote:

> From: Taylor Stark <tstark@microsoft.com>
>
> This patch updates the virtio-pmem spec to add support for describing the pmem
> region via PCI BARs. This is required to support virtio-pmem in Hyper-V, since
> Hyper-V only allows PCI devices to operate on memory ranges defined via BARs.
>
> As virtio-pmem hasn't been added to the virtio spec yet (see this issue [1]),
> this patch is based off the RFC spec [2]. The linux driver implementation has
> been posted at [3].

What's the general status of the pmem spec? I had pinged in the issue,
but I have not seen any progress.

>
> [1] https://github.com/oasis-tcs/virtio-spec/issues/78
> [2] https://lists.oasis-open.org/archives/virtio-dev/201903/msg00083.html
> [3] https://lore.kernel.org/nvdimm/20210715223505.GA29329@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net
>
> <Apologies for the resend - forgot to subscribe to virtio-comment so my original mail bounced>
>
> Taylor Stark (1):
>   virtio_pmem: Support PCI BAR-relative addresses
>
>  virtio-pmem.tex | 22 +++++++++++++++++-----
>  1 file changed, 17 insertions(+), 5 deletions(-)