On 04/04/2018 02:47 AM, Michael S. Tsirkin wrote:
On Wed, Apr 04, 2018 at 12:10:03AM +0800, Wei Wang wrote:
+static int add_one_sg(struct virtqueue *vq, unsigned long pfn, uint32_t len)
+{
+ struct scatterlist sg;
+ unsigned int unused;
+
+ sg_init_table(&sg, 1);
+ sg_set
On Apr 3, 2018, at 11:27 AM, Michael S. Tsirkin wrote:
I'm not sure why you would need a feature bit. The capability is
controlled via PCI configuration space. If it is present the device
has the capability. If it is not then it does not.
Basically if the PCI configuration space is not present
On Tue, Apr 3, 2018 at 8:42 AM, Jiri Pirko wrote:
> Sun, Apr 01, 2018 at 06:11:29PM CEST, dsah...@gmail.com wrote:
>>On 4/1/18 3:13 AM, Si-Wei Liu wrote:
>>> Hidden netdevice is not visible to userspace such that
>>> typical network utilites e.g. ip, ifconfig and et al,
>>> cannot sense its existe
On Tue, Apr 3, 2018 at 11:27 AM, Michael S. Tsirkin wrote:
> On Tue, Apr 03, 2018 at 10:32:00AM -0700, Alexander Duyck wrote:
>> On Tue, Apr 3, 2018 at 6:12 AM, Michael S. Tsirkin wrote:
>> > On Fri, Mar 16, 2018 at 09:40:34AM -0700, Alexander Duyck wrote:
>> >> On Fri, Mar 16, 2018 at 9:34 AM, M
On Wed, Apr 04, 2018 at 12:10:03AM +0800, Wei Wang wrote:
> Negotiation of the VIRTIO_BALLOON_F_FREE_PAGE_HINT feature indicates the
> support of reporting hints of guest free pages to host via virtio-balloon.
>
> Host requests the guest to report free page hints by sending a new cmd
> id to the g
On Tue, Apr 03, 2018 at 10:32:00AM -0700, Alexander Duyck wrote:
> On Tue, Apr 3, 2018 at 6:12 AM, Michael S. Tsirkin wrote:
> > On Fri, Mar 16, 2018 at 09:40:34AM -0700, Alexander Duyck wrote:
> >> On Fri, Mar 16, 2018 at 9:34 AM, Michael S. Tsirkin
> >> wrote:
> >> > On Thu, Mar 15, 2018 at 11
On Tue, Apr 3, 2018 at 6:12 AM, Michael S. Tsirkin wrote:
> On Fri, Mar 16, 2018 at 09:40:34AM -0700, Alexander Duyck wrote:
>> On Fri, Mar 16, 2018 at 9:34 AM, Michael S. Tsirkin wrote:
>> > On Thu, Mar 15, 2018 at 11:42:41AM -0700, Alexander Duyck wrote:
>> >> From: Alexander Duyck
>> >>
>> >>
On Mon, 2 Apr 2018 17:34:50 +0200
Halil Pasic wrote:
> On 03/29/2018 04:30 PM, Michael S. Tsirkin wrote:
> > On Thu, Mar 29, 2018 at 04:15:19PM +0200, Halil Pasic wrote:
> >>
> [..]
> >>
> >> I don't have a good solution, otherwise I would have proposed already.
> >> Maybe something like 'ava
On Fri, Mar 16, 2018 at 09:40:34AM -0700, Alexander Duyck wrote:
> On Fri, Mar 16, 2018 at 9:34 AM, Michael S. Tsirkin wrote:
> > On Thu, Mar 15, 2018 at 11:42:41AM -0700, Alexander Duyck wrote:
> >> From: Alexander Duyck
> >>
> >> Hardware-realized virtio_pci devices can implement SR-IOV, so thi
On Thu, Mar 15, 2018 at 11:42:41AM -0700, Alexander Duyck wrote:
> From: Alexander Duyck
>
> Hardware-realized virtio_pci devices can implement SR-IOV, so this
> patch enables its use. The device in question is an upcoming Intel
> NIC that implements both a virtio_net PF and virtio_net VFs. These
On Sun, Apr 01, 2018 at 05:13:08AM -0400, Si-Wei Liu wrote:
> @@ -896,6 +898,68 @@ void qmp_device_del(const char *id, Error **errp)
> }
> }
>
> +int pci_get_busdevfn_by_id(const char *id, uint16_t *busnr,
> + uint16_t *devfn, Error **errp)
> +{
> +uint16_t bus
On Sun, Apr 01, 2018 at 05:13:10AM -0400, Si-Wei Liu wrote:
> diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h
> index aa40664..0827b7e 100644
> --- a/include/uapi/linux/virtio_net.h
> +++ b/include/uapi/linux/virtio_net.h
> @@ -80,6 +80,8 @@ struct virtio_net_config {
On Tue, Apr 03, 2018 at 07:19:47AM +, Lars Ganrot wrote:
> > From: virtio-dev@lists.oasis-open.org On
> > Behalf Of Michael S. Tsirkin
> > Sent: 29. marts 2018 21:13
> >
> > On Thu, Mar 29, 2018 at 06:23:28PM +, Lars Ganrot wrote:
> > >
> > >
> > > > From: Michael S. Tsirkin
> > > > Sent:
Negotiation of the VIRTIO_BALLOON_F_FREE_PAGE_HINT feature indicates the
support of reporting hints of guest free pages to host via virtio-balloon.
Host requests the guest to report free page hints by sending a new cmd
id to the guest via the free_page_report_cmd_id configuration register.
When t
This patch series is separated from the previous "Virtio-balloon
Enhancement" series. The new feature, VIRTIO_BALLOON_F_FREE_PAGE_HINT,
implemented by this series enables the virtio-balloon driver to report
hints of guest free pages to the host. It can be used to accelerate live
migration of VMs.
The VIRTIO_BALLOON_F_PAGE_POISON feature bit is used to indicate if the
guest is using page poisoning. Guest writes to the poison_val config
field to tell host about the page poisoning value in use.
Signed-off-by: Wei Wang
Suggested-by: Michael S. Tsirkin
Cc: Michael S. Tsirkin
Cc: Michal Hocko
This patch adds support to walk through the free page blocks in the
system and report them via a callback function. Some page blocks may
leave the free list after zone->lock is released, so it is the caller's
responsibility to either detect or prevent the use of such pages.
One use example of this
In some usages, e.g. virtio-balloon, a kernel module needs to know if
page poisoning is in use. This patch exposes the page_poisoning_enabled
function to kernel modules.
Signed-off-by: Wei Wang
Cc: Andrew Morton
Cc: Michal Hocko
Cc: Michael S. Tsirkin
Acked-by: Andrew Morton
---
mm/page_pois
On Sun, Apr 1, 2018 at 9:11 AM, David Ahern wrote:
> On 4/1/18 3:13 AM, Si-Wei Liu wrote:
>> Hidden netdevice is not visible to userspace such that
>> typical network utilities e.g. ip, ifconfig and et al,
>> cannot sense its existence or configure it. Internally
>> hidden netdev may associate wit
> From: virtio-dev@lists.oasis-open.org On
> Behalf Of Michael S. Tsirkin
> Sent: 29. marts 2018 21:13
>
> On Thu, Mar 29, 2018 at 06:23:28PM +, Lars Ganrot wrote:
> >
> >
> > > From: Michael S. Tsirkin
> > > Sent: 29. marts 2018 16:42
> > >
> > > On Wed, Mar 28, 2018 at 04:12:10PM +, La
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