> > > > +int err;
> > > > +
> > > > +sg_init_one(&sg, buf, sizeof(buf));
> > > > +
> > > > +err = virtqueue_add_outbuf(vpmem->req_vq, &sg, 1, buf,
> > > > GFP_KERNEL);
> > > > +
> > > > +if (err) {
> > > > +dev_err(&vdev->dev, "failed to send comman
Pankaj Gupta writes:
>> Ideally, qemu (seabios?) would advertise a platform capabilities
>> sub-table that doesn't fill in the flush bits.
>
> Could you please elaborate on this, how its related to disabling
> MAP_SYNC? We are not doing entire nvdimm device emulation.
My mistake. If you're not
>
> Dan Williams writes:
>
> > [ adding Jeff directly since he has also been looking at
> > infrastructure to track when MAP_SYNC should be disabled ]
> >
> > On Wed, Apr 25, 2018 at 7:21 AM, Dan Williams
> > wrote:
> >> On Wed, Apr 25, 2018 at 4:24 AM, Pankaj Gupta wrote:
> >>> This patch ad
> > This patch adds virtio-pmem driver for KVM
> > guest.
> >
> > Guest reads the persistent memory range
> > information from Qemu over VIRTIO and registers
> > it on nvdimm_bus. It also creates a nd_region
> > object with the persistent memory range
> > information so that existing 'nvdimm/pmem
Dan Williams writes:
> [ adding Jeff directly since he has also been looking at
> infrastructure to track when MAP_SYNC should be disabled ]
>
> On Wed, Apr 25, 2018 at 7:21 AM, Dan Williams
> wrote:
>> On Wed, Apr 25, 2018 at 4:24 AM, Pankaj Gupta wrote:
>>> This patch adds virtio-pmem driver
>
> On Wed, Apr 25, 2018 at 04:54:13PM +0530, Pankaj Gupta wrote:
> > diff --git a/include/uapi/linux/virtio_ids.h
> > b/include/uapi/linux/virtio_ids.h
> > index 6d5c3b2..5ebd049 100644
> > --- a/include/uapi/linux/virtio_ids.h
> > +++ b/include/uapi/linux/virtio_ids.h
> > @@ -43,5 +43,6 @@
> >
On Wed, Apr 25, 2018 at 04:54:13PM +0530, Pankaj Gupta wrote:
> diff --git a/include/uapi/linux/virtio_ids.h b/include/uapi/linux/virtio_ids.h
> index 6d5c3b2..5ebd049 100644
> --- a/include/uapi/linux/virtio_ids.h
> +++ b/include/uapi/linux/virtio_ids.h
> @@ -43,5 +43,6 @@
> #define VIRTIO_ID_INP
[ adding Jeff directly since he has also been looking at
infrastructure to track when MAP_SYNC should be disabled ]
On Wed, Apr 25, 2018 at 7:21 AM, Dan Williams wrote:
> On Wed, Apr 25, 2018 at 4:24 AM, Pankaj Gupta wrote:
>> This patch adds virtio-pmem driver for KVM
>> guest.
>
> Minor nit, p
On Wed, Apr 25, 2018 at 4:24 AM, Pankaj Gupta wrote:
> This patch adds virtio-pmem driver for KVM
> guest.
Minor nit, please expand your changelog line wrapping to 72 columns.
>
> Guest reads the persistent memory range
> information from Qemu over VIRTIO and registers
> it on nvdimm_bus. It als
This patch adds virtio-pmem driver for KVM
guest.
Guest reads the persistent memory range
information from Qemu over VIRTIO and registers
it on nvdimm_bus. It also creates a nd_region
object with the persistent memory range
information so that existing 'nvdimm/pmem'
driver can reserve this
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