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

From: Taylor Stark <>

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].

[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(-)

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2.31.0.vfs.0.1