Wed, Apr 04, 2018 at 03:04:26AM CEST, dsah...@gmail.com wrote:
>On 4/3/18 9:42 AM, Jiri Pirko wrote:
>>>
>>> There are other use cases that want to hide a device from userspace. I
>>
>> What usecases do you have in mind?
>
>As mentioned in a previous response some kernel drivers create control
>ne
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 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 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 Sun, 1 Apr 2018 05:13:09 -0400
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 existence or configure it. Internally
> hidden netdev may associate with an upper level netdev
> that userspace
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 existence or configure it. Internally
>> hidden netdev may asso
On Tue, Apr 03, 2018 at 12:29:47PM +, haibinzhang(张海斌) wrote:
>
> >On Tue, Apr 03, 2018 at 08:08:26AM +, haibinzhang wrote:
> >> handle_tx will delay rx for a long time when tx busy polling udp packets
> >> with small length(e.g. 1byte udp payload), because setting VHOST_NET_WEIGHT
> >> ta
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 08:08:26AM +, haibinzhang(张海斌) wrote:
> handle_tx will delay rx for a long time when tx busy polling udp packets
> with small length(e.g. 1byte udp payload), because setting VHOST_NET_WEIGHT
> takes into account only sent-bytes but no single packet length.
>
> Tests wer
Wait until we have enough space in the virt queue to actually queue up
our request. Avoids the guest spinning in case we have a non-zero
amount of free entries but not enough for the request.
Cc: sta...@vger.kernel.org
Reported-by: Alain Magloire
Signed-off-by: Gerd Hoffmann
---
drivers/gpu/dr
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
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
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
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.
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
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
17 matches
Mail list logo
