On 08/02/2018 07:47 PM, Michal Hocko wrote:
On Thu 02-08-18 18:32:44, Wei Wang wrote:
On 08/01/2018 07:34 PM, Michal Hocko wrote:
On Wed 01-08-18 19:12:25, Wei Wang wrote:
On 07/30/2018 05:00 PM, Michal Hocko wrote:
On Fri 27-07-18 17:24:55, Wei Wang wrote:
The OOM notifier is getting
On 2018/08/03 14:07, Jason Wang wrote:
> On 2018年08月03日 12:04, Tonghao Zhang wrote:
>> On Fri, Aug 3, 2018 at 11:43 AM Jason Wang wrote:
>>>
>>> On 2018年08月03日 11:24, Tonghao Zhang wrote:
On Fri, Aug 3, 2018 at 11:07 AM Jason Wang wrote:
> On 2018年08月03日 10:51, Tonghao Zhang wrote:
On 2018年08月03日 12:04, Tonghao Zhang wrote:
On Fri, Aug 3, 2018 at 11:43 AM Jason Wang wrote:
On 2018年08月03日 11:24, Tonghao Zhang wrote:
On Fri, Aug 3, 2018 at 11:07 AM Jason Wang wrote:
On 2018年08月03日 10:51, Tonghao Zhang wrote:
On Thu, Aug 2, 2018 at 5:23 PM Jason Wang wrote:
On
On 2018/08/03 13:14, Tonghao Zhang wrote:
> On Fri, Aug 3, 2018 at 11:40 AM Toshiaki Makita
> wrote:
>>
>> On 2018/08/03 12:24, Tonghao Zhang wrote:
>>> On Fri, Aug 3, 2018 at 11:07 AM Jason Wang wrote:
On 2018年08月03日 10:51, Tonghao Zhang wrote:
> On Thu, Aug 2, 2018 at 5:23 PM Jason
On Fri, Aug 3, 2018 at 11:40 AM Toshiaki Makita
wrote:
>
> On 2018/08/03 12:24, Tonghao Zhang wrote:
> > On Fri, Aug 3, 2018 at 11:07 AM Jason Wang wrote:
> >> On 2018年08月03日 10:51, Tonghao Zhang wrote:
> >>> On Thu, Aug 2, 2018 at 5:23 PM Jason Wang wrote:
> On 2018年08月02日 16:41, Toshiaki
On Fri, Aug 3, 2018 at 11:43 AM Jason Wang wrote:
>
>
>
> On 2018年08月03日 11:24, Tonghao Zhang wrote:
> > On Fri, Aug 3, 2018 at 11:07 AM Jason Wang wrote:
> >>
> >>
> >> On 2018年08月03日 10:51, Tonghao Zhang wrote:
> >>> On Thu, Aug 2, 2018 at 5:23 PM Jason Wang wrote:
>
> On
On 2018年08月03日 11:32, Toshiaki Makita wrote:
On 2018/08/03 12:07, Jason Wang wrote:
On 2018年08月02日 17:23, Jason Wang wrote:
No need to enable rx virtqueue, if we are sure handle_rx() will be
called soon.
If we disable rx virtqueue in handle_tx and don't send packets from
guest
On 2018/08/03 12:24, Tonghao Zhang wrote:
> On Fri, Aug 3, 2018 at 11:07 AM Jason Wang wrote:
>> On 2018年08月03日 10:51, Tonghao Zhang wrote:
>>> On Thu, Aug 2, 2018 at 5:23 PM Jason Wang wrote:
On 2018年08月02日 16:41, Toshiaki Makita wrote:
> On 2018/08/02 17:18, Jason Wang wrote:
>>
On 2018/08/03 12:07, Jason Wang wrote:
> On 2018年08月02日 17:23, Jason Wang wrote:
>>>
>> No need to enable rx virtqueue, if we are sure handle_rx() will be
>> called soon.
> If we disable rx virtqueue in handle_tx and don't send packets from
> guest anymore(handle_tx is not
On Fri, Aug 3, 2018 at 11:07 AM Jason Wang wrote:
>
>
>
> On 2018年08月03日 10:51, Tonghao Zhang wrote:
> > On Thu, Aug 2, 2018 at 5:23 PM Jason Wang wrote:
> >>
> >>
> >> On 2018年08月02日 16:41, Toshiaki Makita wrote:
> >>> On 2018/08/02 17:18, Jason Wang wrote:
> On 2018年08月01日 17:52, Tonghao
On 2018年08月03日 10:51, Tonghao Zhang wrote:
On Thu, Aug 2, 2018 at 5:23 PM Jason Wang wrote:
On 2018年08月02日 16:41, Toshiaki Makita wrote:
On 2018/08/02 17:18, Jason Wang wrote:
On 2018年08月01日 17:52, Tonghao Zhang wrote:
+static void vhost_net_busy_poll_check(struct vhost_net *net,
+
On 2018年08月02日 17:23, Jason Wang wrote:
No need to enable rx virtqueue, if we are sure handle_rx() will be
called soon.
If we disable rx virtqueue in handle_tx and don't send packets from
guest anymore(handle_tx is not called), so we can wake up for sock rx.
so the network is broken.
Not
On Thu, Aug 2, 2018 at 5:23 PM Jason Wang wrote:
>
>
>
> On 2018年08月02日 16:41, Toshiaki Makita wrote:
> > On 2018/08/02 17:18, Jason Wang wrote:
> >> On 2018年08月01日 17:52, Tonghao Zhang wrote:
> +static void vhost_net_busy_poll_check(struct vhost_net *net,
> +
On 2018年08月03日 04:55, Michael S. Tsirkin wrote:
On Fri, Jul 20, 2018 at 09:29:37AM +0530, Anshuman Khandual wrote:
This patch series is the follow up on the discussions we had before about
the RFC titled [RFC,V2] virtio: Add platform specific DMA API translation
for virito devices
On 2018年08月02日 17:57, Toshiaki Makita wrote:
On 2018/08/02 18:23, Jason Wang wrote:
On 2018年08月02日 16:41, Toshiaki Makita wrote:
On 2018/08/02 17:18, Jason Wang wrote:
On 2018年08月01日 17:52, Tonghao Zhang wrote:
+static void vhost_net_busy_poll_check(struct vhost_net *net,
+
On Thu, Aug 02, 2018 at 04:13:09PM -0500, Benjamin Herrenschmidt wrote:
> On Thu, 2018-08-02 at 23:52 +0300, Michael S. Tsirkin wrote:
> > > Yes, this is the purpose of Anshuman original patch (I haven't looked
> > > at the details of the patch in a while but that's what I told him to
> > >
On Thu, 2018-08-02 at 23:52 +0300, Michael S. Tsirkin wrote:
> > Yes, this is the purpose of Anshuman original patch (I haven't looked
> > at the details of the patch in a while but that's what I told him to
> > implement ;-) :
> >
> > - Make virtio always use DMA ops to simplify the code path
On Thu, Aug 02, 2018 at 02:04:12PM -0700, Nambiar, Amritha wrote:
> On 8/1/2018 5:11 PM, Andrei Vagin wrote:
> > On Tue, Jul 10, 2018 at 07:28:49PM -0700, Nambiar, Amritha wrote:
> >> With this patch series, I introduced static_key for XPS maps
> >> (xps_needed), so static_key_slow_inc() is used
On Fri, Jul 20, 2018 at 09:29:37AM +0530, Anshuman Khandual wrote:
> This patch series is the follow up on the discussions we had before about
> the RFC titled [RFC,V2] virtio: Add platform specific DMA API translation
> for virito devices (https://patchwork.kernel.org/patch/10417371/). There
>
On Thu, Aug 02, 2018 at 10:33:05AM -0500, Benjamin Herrenschmidt wrote:
> On Thu, 2018-08-02 at 00:56 +0300, Michael S. Tsirkin wrote:
> > > but it's not, VMs are
> > > created in "legacy" mode all the times and we don't know at VM creation
> > > time whether it will become a secure VM or not. The
On Thu, Aug 02, 2018 at 12:53:41PM -0500, Benjamin Herrenschmidt wrote:
> On Thu, 2018-08-02 at 20:19 +0300, Michael S. Tsirkin wrote:
> >
> > I see. So yes, given that device does not know or care, using
> > virtio features is an awkward fit.
> >
> > So let's say as a quick fix for you maybe we
On Thu, 2018-08-02 at 20:19 +0300, Michael S. Tsirkin wrote:
>
> I see. So yes, given that device does not know or care, using
> virtio features is an awkward fit.
>
> So let's say as a quick fix for you maybe we could generalize the
> xen_domain hack, instead of just checking xen_domain check
On Thu, Aug 02, 2018 at 11:01:26AM -0500, Benjamin Herrenschmidt wrote:
> On Thu, 2018-08-02 at 18:41 +0300, Michael S. Tsirkin wrote:
> >
> > > I don't completely agree:
> > >
> > > 1 - VIRTIO_F_IOMMU_PLATFORM is a property of the "other side", ie qemu
> > > for example. It indicates that the
On Thu, 2018-08-02 at 18:41 +0300, Michael S. Tsirkin wrote:
>
> > I don't completely agree:
> >
> > 1 - VIRTIO_F_IOMMU_PLATFORM is a property of the "other side", ie qemu
> > for example. It indicates that the peer bypasses the normal platform
> > iommu. The platform code in the guest has no
On Thu, Aug 02, 2018 at 10:24:57AM -0500, Benjamin Herrenschmidt wrote:
> On Wed, 2018-08-01 at 01:36 -0700, Christoph Hellwig wrote:
> > We just need to figure out how to deal with devices that deviate
> > from the default. One things is that VIRTIO_F_IOMMU_PLATFORM really
> > should become
On Thu, 2018-08-02 at 00:56 +0300, Michael S. Tsirkin wrote:
> > but it's not, VMs are
> > created in "legacy" mode all the times and we don't know at VM creation
> > time whether it will become a secure VM or not. The way our secure VMs
> > work is that they start as a normal VM, load a secure
On Wed, 2018-08-01 at 01:36 -0700, Christoph Hellwig wrote:
> We just need to figure out how to deal with devices that deviate
> from the default. One things is that VIRTIO_F_IOMMU_PLATFORM really
> should become VIRTIO_F_PLATFORM_DMA to cover the cases of non-iommu
> dma tweaks (offsets, cache
On Thu, Aug 02, 2018 at 06:32:44PM +0800, Wei Wang wrote:
> On 08/01/2018 07:34 PM, Michal Hocko wrote:
> > On Wed 01-08-18 19:12:25, Wei Wang wrote:
> > > On 07/30/2018 05:00 PM, Michal Hocko wrote:
> > > > On Fri 27-07-18 17:24:55, Wei Wang wrote:
> > > > > The OOM notifier is getting deprecated
On Thu 02-08-18 18:32:44, Wei Wang wrote:
> On 08/01/2018 07:34 PM, Michal Hocko wrote:
> > On Wed 01-08-18 19:12:25, Wei Wang wrote:
> > > On 07/30/2018 05:00 PM, Michal Hocko wrote:
> > > > On Fri 27-07-18 17:24:55, Wei Wang wrote:
> > > > > The OOM notifier is getting deprecated to use for the
On 2018/08/02 19:32, Wei Wang wrote:
> On 08/01/2018 07:34 PM, Michal Hocko wrote:
>> Do you have any numbers for how does this work in practice?
>
> It works in this way: for example, we can set the parameter,
> balloon_pages_to_shrink,
> to shrink 1GB memory once shrink scan is called. Now, we
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On Thu 02-08-18 19:27:40, Wei Wang wrote:
> On 08/02/2018 07:00 PM, Tetsuo Handa wrote:
> > On 2018/08/02 19:32, Wei Wang wrote:
> > > On 08/01/2018 07:34 PM, Michal Hocko wrote:
> > > > Do you have any numbers for how does this work in practice?
> > > It works in this way: for example, we can set
On 08/02/2018 07:00 PM, Tetsuo Handa wrote:
On 2018/08/02 19:32, Wei Wang wrote:
On 08/01/2018 07:34 PM, Michal Hocko wrote:
Do you have any numbers for how does this work in practice?
It works in this way: for example, we can set the parameter,
balloon_pages_to_shrink,
to shrink 1GB memory
On 08/01/2018 07:34 PM, Michal Hocko wrote:
On Wed 01-08-18 19:12:25, Wei Wang wrote:
On 07/30/2018 05:00 PM, Michal Hocko wrote:
On Fri 27-07-18 17:24:55, Wei Wang wrote:
The OOM notifier is getting deprecated to use for the reasons mentioned
here by Michal Hocko:
On 2018/08/02 18:23, Jason Wang wrote:
> On 2018年08月02日 16:41, Toshiaki Makita wrote:
>> On 2018/08/02 17:18, Jason Wang wrote:
>>> On 2018年08月01日 17:52, Tonghao Zhang wrote:
> +static void vhost_net_busy_poll_check(struct vhost_net *net,
> + struct
On 2018年08月02日 16:41, Toshiaki Makita wrote:
On 2018/08/02 17:18, Jason Wang wrote:
On 2018年08月01日 17:52, Tonghao Zhang wrote:
+static void vhost_net_busy_poll_check(struct vhost_net *net,
+ struct vhost_virtqueue *rvq,
+
On 2018/08/02 17:18, Jason Wang wrote:
> On 2018年08月01日 17:52, Tonghao Zhang wrote:
>>> +static void vhost_net_busy_poll_check(struct vhost_net *net,
>>> + struct vhost_virtqueue *rvq,
>>> + struct vhost_virtqueue *tvq,
>>> +
On 2018年08月01日 17:52, Tonghao Zhang wrote:
+
+ cpu_relax();
+ }
+
+ preempt_enable();
+
+ if (!rx)
+ vhost_net_enable_vq(net, vq);
No need to enable rx virtqueue, if we are sure handle_rx() will be
called soon.
If we disable rx virtqueue in handle_tx and
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