On 10/19/2023 9:11 PM, Jason Wang wrote:
On Fri, Oct 20, 2023 at 6:28 AM Si-Wei Liu wrote:
On 10/19/2023 7:39 AM, Eugenio Perez Martin wrote:
On Thu, Oct 19, 2023 at 10:27 AM Jason Wang wrote:
On Thu, Oct 19, 2023 at 2:47 PM Si-Wei Liu wrote:
On 10/18/2023 7:53 PM, Jason Wang wrote:
On Fri, Oct 20, 2023 at 6:28 AM Si-Wei Liu wrote:
>
>
>
> On 10/19/2023 7:39 AM, Eugenio Perez Martin wrote:
> > On Thu, Oct 19, 2023 at 10:27 AM Jason Wang wrote:
> >> On Thu, Oct 19, 2023 at 2:47 PM Si-Wei Liu wrote:
> >>>
> >>>
> >>> On 10/18/2023 7:53 PM, Jason Wang wrote:
> On Wed,
Cc Paolo, Stefan, Xuan and linux-block.
On 10/19/23 17:52, Michael S. Tsirkin wrote:
On Thu, Oct 19, 2023 at 05:43:55PM +0800, zhenwei pi wrote:
Hi Michael,
This seems to have been ignored as you suggested.
LINK: https://www.spinics.net/lists/linux-virtualization/msg63015.html
Pls Cc more
On 10/19/2023 2:29 AM, Stefano Garzarella wrote:
On Wed, Oct 18, 2023 at 04:47:48PM -0700, Si-Wei Liu wrote:
On 10/18/2023 1:05 AM, Stefano Garzarella wrote:
On Tue, Oct 17, 2023 at 10:11:33PM -0700, Si-Wei Liu wrote:
RFC only. Not tested on vdpa-sim-blk with user virtual address.
Works
For patches 05-16:
Reviewed-by: Si-Wei Liu
Tested-by: Si-Wei Liu
Thanks for the fixes!
On 10/18/2023 10:14 AM, Dragos Tatulea wrote:
This patch series adds support for vq descriptor table mappings which
are used to improve vdpa live migration downtime. The improvement comes
from using
Hi Vitaly, Sean and David,
On 10/19/23 08:40, Sean Christopherson wrote:
> On Thu, Oct 19, 2023, Vitaly Kuznetsov wrote:
>> Dongli Zhang writes:
>>
>>> As mentioned in the linux kernel development document, "sched_clock() is
>>> used for scheduling and timestamping". While there is a default
On 10/17/2023 10:27 PM, Jason Wang wrote:
If we do
this without a negotiation, IOTLB will not be clear but the Qemu will
try to re-program the IOTLB after reset. Which will break?
1) stick the exact old behaviour with just one line of check
It's not just one line of check here, the old
On 10/19/2023 7:39 AM, Eugenio Perez Martin wrote:
On Thu, Oct 19, 2023 at 10:27 AM Jason Wang wrote:
On Thu, Oct 19, 2023 at 2:47 PM Si-Wei Liu wrote:
On 10/18/2023 7:53 PM, Jason Wang wrote:
On Wed, Oct 18, 2023 at 4:49 PM Si-Wei Liu wrote:
On 10/18/2023 12:00 AM, Jason Wang wrote:
On Thu, 2023-10-19 at 08:40 -0700, Sean Christopherson wrote:
>
> > Normally, it should be up to the hypervisor to tell the guest which
> > clock to use, i.e. if TSC is reliable or not. Let me put my question
> > this way: if TSC on the particular host is good for everything, why
> > does the
On Thu, 19 Oct 2023 12:16:24 +0200, Jakub Sitnicki wrote:
> Since commit 19e226e8cc5d ("virtio: Make vp_set_vq_affinity() take a
> mask.") it is actually not needed to have a local copy of the cpu mask.
Could you give more info to prove this?
If you are right, I think you should delete all
On Thu, 19 Oct 2023 12:16:25 +0200, Jakub Sitnicki wrote:
> Since commit 65c7cdedeb30 ("genirq: Provide new interfaces for affinity
> hints") irq_set_affinity_hint is being phased out.
>
> Switch to new interfaces for setting and applying irq affinity hints.
>
> Signed-off-by: Jakub Sitnicki
-scm.com/docs/git-format-patch#_base_tree_information]
url:
https://github.com/intel-lab-lkp/linux/commits/Juergen-Gross/x86-paravirt-move-some-functions-and-defines-to-alternative/20231019-171709
base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue
patch link:
https://lore.kernel.org
-scm.com/docs/git-format-patch#_base_tree_information]
url:
https://github.com/intel-lab-lkp/linux/commits/Juergen-Gross/x86-paravirt-move-some-functions-and-defines-to-alternative/20231019-171709
base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue
patch link:
https://lore.kernel.org
Dongli Zhang writes:
> As mentioned in the linux kernel development document, "sched_clock() is
> used for scheduling and timestamping". While there is a default native
> implementation, many paravirtualizations have their own implementations.
>
> About KVM, it uses kvm_sched_clock_read() and
-scm.com/docs/git-format-patch#_base_tree_information]
url:
https://github.com/intel-lab-lkp/linux/commits/Juergen-Gross/x86-paravirt-move-some-functions-and-defines-to-alternative/20231019-171709
base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue
patch link:
https://lore.kernel.org
Since commit 65c7cdedeb30 ("genirq: Provide new interfaces for affinity
hints") irq_set_affinity_hint is being phased out.
Switch to new interfaces for setting and applying irq affinity hints.
Signed-off-by: Jakub Sitnicki
---
drivers/virtio/virtio_pci_common.c | 4 ++--
1 file changed, 2
Since commit 19e226e8cc5d ("virtio: Make vp_set_vq_affinity() take a
mask.") it is actually not needed to have a local copy of the cpu mask.
Pass the cpu mask we got as argument to set the irq affinity hint.
Cc: Caleb Raitto
Signed-off-by: Jakub Sitnicki
---
drivers/virtio/virtio_pci_common.c
On Thu, Oct 19, 2023 at 05:43:55PM +0800, zhenwei pi wrote:
> Hi Michael,
>
> This seems to have been ignored as you suggested.
>
> LINK: https://www.spinics.net/lists/linux-virtualization/msg63015.html
Pls Cc more widely then:
Paolo Bonzini (reviewer:VIRTIO BLOCK AND SCSI DRIVERS)
Stefan
Hi Michael,
This seems to have been ignored as you suggested.
LINK: https://www.spinics.net/lists/linux-virtualization/msg63015.html
On 9/4/23 14:10, zhenwei pi wrote:
The following codes have an implicit conversion from size_t to u32:
(u32)max_size = (size_t)virtio_max_dma_size(vdev);
This
On Wed, Oct 18, 2023 at 04:47:48PM -0700, Si-Wei Liu wrote:
On 10/18/2023 1:05 AM, Stefano Garzarella wrote:
On Tue, Oct 17, 2023 at 10:11:33PM -0700, Si-Wei Liu wrote:
RFC only. Not tested on vdpa-sim-blk with user virtual address.
Works fine with vdpa-sim-net which uses physical address to
Now that paravirt is using the alternatives patching infrastructure,
remove the paravirt patching code.
Signed-off-by: Juergen Gross
Acked-by: Peter Zijlstra (Intel)
---
arch/x86/include/asm/paravirt.h | 18
arch/x86/include/asm/paravirt_types.h | 40
Instead of stacking alternative and paravirt patching, use the new
ALT_FLAG_CALL flag to switch those mixed calls to pure alternative
handling.
This eliminates the need to be careful regarding the sequence of
alternative and paravirt patching.
For call depth tracking callthunks_setup() needs to
Introduce the macro ALT_NOT_XEN as a short form of
ALT_NOT(X86_FEATURE_XENPV).
Suggested-by: Peter Zijlstra (Intel)
Signed-off-by: Juergen Gross
---
V3:
- split off from next patch
---
arch/x86/include/asm/paravirt.h | 42 ---
arch/x86/include/asm/paravirt_types.h
This is a small series getting rid of paravirt patching by switching
completely to alternative patching for the same functionality.
The basic idea is to add the capability to switch from indirect to
direct calls via a special alternative patching option.
This removes _some_ of the paravirt macro
As a preparation for replacing paravirt patching completely by
alternative patching, move some backend functions and #defines to
alternative code and header.
Signed-off-by: Juergen Gross
Acked-by: Peter Zijlstra (Intel)
---
arch/x86/include/asm/alternative.h| 16
On Wed, Oct 18, 2023 at 09:32:47PM +0300, Alexandru Matei wrote:
Once VQs are filled with empty buffers and we kick the host, it can send
connection requests. If 'the_virtio_vsock' is not initialized before,
replies are silently dropped and do not reach the host.
Are replies really dropped or
On Thu, Oct 19, 2023 at 03:13:48PM +0800, Xuan Zhuo wrote:
> On Thu, 19 Oct 2023 02:38:16 -0400, "Michael S. Tsirkin"
> wrote:
> > On Tue, Oct 17, 2023 at 10:02:05AM +0800, Xuan Zhuo wrote:
> > > On Mon, 16 Oct 2023 16:44:34 -0700, Jakub Kicinski
> > > wrote:
> > > > On Mon, 16 Oct 2023
On Thu, Oct 19, 2023 at 2:47 PM Si-Wei Liu wrote:
>
>
>
> On 10/18/2023 7:53 PM, Jason Wang wrote:
> > On Wed, Oct 18, 2023 at 4:49 PM Si-Wei Liu wrote:
> >>
> >>
> >> On 10/18/2023 12:00 AM, Jason Wang wrote:
> Unfortunately, it's a must to stick to ABI. I agree it's a mess but we
>
Hi Vignesh,
On Thu, 19 Oct 2023 at 09:07, Vignesh Raman wrote:
> +# Some tests crashes with malloc error and IGT tests floods
> +# the CI log with error messages and we end up with a warning message
> +# Job's log exceeded limit of 4194304 bytes.
> +# Job execution will continue but no more
On Thu, 19 Oct 2023 14:12:55 +0800, Jason Wang wrote:
> On Mon, Oct 16, 2023 at 8:00 PM Xuan Zhuo wrote:
> >
> > Move some structure definitions and inline functions into the
> > virtio_net.h file.
>
> Some of the functions are not inline one before the moving. I'm not
> sure what's the criteria
On Thu, 19 Oct 2023 02:38:16 -0400, "Michael S. Tsirkin"
wrote:
> On Tue, Oct 17, 2023 at 10:02:05AM +0800, Xuan Zhuo wrote:
> > On Mon, 16 Oct 2023 16:44:34 -0700, Jakub Kicinski wrote:
> > > On Mon, 16 Oct 2023 20:00:27 +0800 Xuan Zhuo wrote:
> > > > @@ -305,9 +311,15 @@ static inline void
Add BUG_ON check to make sure virtqueue_set_dma_premapped() is not
misused. This function must be called immediately after creating the vq,
or after vq reset, and before adding any buffers to it.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_ring.c | 5 +
1 file changed, 1
On Thu, Oct 19, 2023 at 02:35:33PM +0800, Xuan Zhuo wrote:
> If the vhost-user device is in busy-polling mode, the cachelines of
> avali ring
avail
same in subject
> are raced by the driver process and the vhost-user process.
> Because that the idx will be updated everytime, when the new ring
On 10/18/2023 7:53 PM, Jason Wang wrote:
On Wed, Oct 18, 2023 at 4:49 PM Si-Wei Liu wrote:
On 10/18/2023 12:00 AM, Jason Wang wrote:
Unfortunately, it's a must to stick to ABI. I agree it's a mess but we
don't have a better choice. Or we can fail the probe if userspace
doesn't ack this
On Tue, Oct 17, 2023 at 10:02:05AM +0800, Xuan Zhuo wrote:
> On Mon, 16 Oct 2023 16:44:34 -0700, Jakub Kicinski wrote:
> > On Mon, 16 Oct 2023 20:00:27 +0800 Xuan Zhuo wrote:
> > > @@ -305,9 +311,15 @@ static inline void virtnet_free_old_xmit(struct
> > > virtnet_sq *sq, bool in_napi,
> > >
> >
On Thu, Oct 19, 2023 at 02:14:27PM +0800, Jason Wang wrote:
> On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
> >
> > We move some structures and APIs to the header file, but these
> > structures and APIs do not prefixed with virtnet. This patch adds
> > virtnet for these.
>
> What's the
If the vhost-user device is in busy-polling mode, the cachelines of
avali ring are raced by the driver process and the vhost-user process.
Because that the idx will be updated everytime, when the new ring items
are updated. So one cache line will be read too times, the two processes
will race the
On Mon, Oct 16, 2023 at 8:00 PM Xuan Zhuo wrote:
>
> This patch separates two sub-functions from virtnet_tx_resize():
>
> * virtnet_tx_pause
> * virtnet_tx_resume
>
> Then the subsequent virtnet_tx_reset() can share these two functions.
>
> Signed-off-by: Xuan Zhuo
Acked-by: Jason Wang
Thanks
On Mon, Oct 16, 2023 at 8:00 PM Xuan Zhuo wrote:
>
> This patch separates two sub-functions from virtnet_rx_resize():
>
> * virtnet_rx_pause
> * virtnet_rx_resume
>
> Then the subsequent reset rx for xsk can share these two functions.
>
> Signed-off-by: Xuan Zhuo
Acked-by: Jason Wang
Thanks
On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
>
> We move some structures and APIs to the header file, but these
> structures and APIs do not prefixed with virtnet. This patch adds
> virtnet for these.
What's the benefit of doing this? AFAIK virtio-net is the only user
for virtio-net.h?
On Mon, Oct 16, 2023 at 8:00 PM Xuan Zhuo wrote:
>
> Move some structure definitions and inline functions into the
> virtio_net.h file.
Some of the functions are not inline one before the moving. I'm not
sure what's the criteria to choose the function to be moved.
>
> Signed-off-by: Xuan Zhuo
On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
>
> Create a separate directory for virtio-net. AF_XDP support will be added
> later, then a separate xsk.c file will be added, so we should create a
> directory for virtio-net.
>
> Signed-off-by: Xuan Zhuo
Acked-by: Jason Wang
Thanks
> ---
>
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