On Tue, Jun 28, 2022 at 11:54:27AM +0800, Jason Wang wrote:
> On Mon, Jun 27, 2022 at 6:01 PM Michael S. Tsirkin wrote:
> >
> > On Mon, Jun 27, 2022 at 04:12:57PM +0800, Cindy Lu wrote:
> > > On Sun, Jun 26, 2022 at 6:01 PM Michael S. Tsirkin
> > > wrote:
> > > >
> > > > On Sun, Jun 26, 2022 at
On Tue, Jun 28, 2022 at 11:50:37AM +0800, Jason Wang wrote:
> On Mon, Jun 27, 2022 at 7:53 PM Michael S. Tsirkin wrote:
> >
> > On Mon, Jun 27, 2022 at 04:14:20PM +0800, Jason Wang wrote:
> > > On Mon, Jun 27, 2022 at 3:58 PM Michael S. Tsirkin
> > > wrote:
> > > >
> > > > On Mon, Jun 27, 2022
On Tue, Jun 28, 2022 at 11:49:12AM +0800, Jason Wang wrote:
> > Heh. Yea sure. But things work fine for people. What is the chance
> > your review found and fixed all driver bugs?
>
> I don't/can't audit all bugs but the race between open/close against
> ready/reset. It looks to me a good chance
On Mon, Jun 13, 2022 at 02:58:59AM -0400, Michael S. Tsirkin wrote:
> On Fri, Jan 14, 2022 at 03:12:47PM -0500, Michael S. Tsirkin wrote:
> > On Thu, Dec 16, 2021 at 08:58:31PM +0100, Marcel Holtmann wrote:
> > > Hi Michael,
> > >
> > > > Device removal is clearly out of virtio spec: it
On Thu, Jun 23, 2022 at 4:58 PM Stefano Garzarella wrote:
>
> On Thu, Jun 23, 2022 at 11:50:22AM +0800, Jason Wang wrote:
> >On Wed, Jun 22, 2022 at 12:09 AM Stefano Garzarella
> >wrote:
> >>
> >> Limit the number of requests (4 per queue as for vdpa_sim_net) handled
> >> in a batch to prevent
On Mon, Jun 27, 2022 at 6:01 PM Michael S. Tsirkin wrote:
>
> On Mon, Jun 27, 2022 at 04:12:57PM +0800, Cindy Lu wrote:
> > On Sun, Jun 26, 2022 at 6:01 PM Michael S. Tsirkin wrote:
> > >
> > > On Sun, Jun 26, 2022 at 05:04:08PM +0800, Cindy Lu wrote:
> > > > We count pinned_vm as follow in
On Mon, Jun 27, 2022 at 7:53 PM Michael S. Tsirkin wrote:
>
> On Mon, Jun 27, 2022 at 04:14:20PM +0800, Jason Wang wrote:
> > On Mon, Jun 27, 2022 at 3:58 PM Michael S. Tsirkin wrote:
> > >
> > > On Mon, Jun 27, 2022 at 03:45:30PM +0800, Jason Wang wrote:
> > > > On Mon, Jun 27, 2022 at 2:39 PM
On Mon, Jun 27, 2022 at 5:52 PM Michael S. Tsirkin wrote:
>
> On Mon, Jun 27, 2022 at 04:11:18PM +0800, Jason Wang wrote:
> > On Mon, Jun 27, 2022 at 3:33 PM Michael S. Tsirkin wrote:
> > >
> > > On Mon, Jun 27, 2022 at 10:50:17AM +0800, Jason Wang wrote:
> > > > On Fri, Jun 24, 2022 at 2:31 PM
On Mon, Jun 27, 2022 at 08:27:37PM +0200, Daniel Borkmann wrote:
> On 6/27/22 8:04 PM, Gustavo A. R. Silva wrote:
> > There is a regular need in the kernel to provide a way to declare
> > having a dynamically sized set of trailing elements in a structure.
> > Kernel code should always use
Gustavo A. R. Silva wrote:
> There is a regular need in the kernel to provide a way to declare
> having a dynamically sized set of trailing elements in a structure.
> Kernel code should always use “flexible array members”[1] for these
> cases. The older style of one-element or zero-length arrays
On Mon, Jun 27, 2022 at 07:19:09PM +, Alexander Atanasov wrote:
> Allow the guest to know how much it is ballooned by the host.
> It is useful when debugging out of memory conditions.
>
> When host gets back memory from the guest it is accounted
> as used memory in the guest but the guest
On 6/27/22 8:04 PM, Gustavo A. R. Silva wrote:
There is a regular need in the kernel to provide a way to declare
having a dynamically sized set of trailing elements in a structure.
Kernel code should always use “flexible array members”[1] for these
cases. The older style of one-element or
The pull request you sent on Mon, 27 Jun 2022 11:50:24 -0400:
> https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/941e3e7912696b9fbe3586083a7c2e102cee7a87
Thank you!
--
Deet-doot-dot, I am a
On 6/27/22 10:27, Guo Hui wrote:
The instructions assigned to the vcpu_is_preempted function parameter
in the X86 architecture physical machine are redundant instructions,
causing the multi-core performance of Unixbench to drop by about 4% to 5%.
The C function is as follows:
static bool
The following changes since commit a111daf0c53ae91e71fd2bfe7497862d14132e3e:
Linux 5.19-rc3 (2022-06-19 15:06:47 -0500)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus
for you to fetch changes up to
On 27.06.22 16:27, Guo Hui wrote:
The instructions assigned to the vcpu_is_preempted function parameter
in the X86 architecture physical machine are redundant instructions,
causing the multi-core performance of Unixbench to drop by about 4% to 5%.
The C function is as follows:
static bool
On 6/27/22 01:54, Guo Hui wrote:
Thank you very much Longman, my patch is as you said, only disable
node_cpu on X86, enable node_cpu on arm64, powerpc, s390 architectures;
the code is in file arch/x86/kernel/paravirt-spinlocks.c:
DECLARE_STATIC_KEY_FALSE(preemted_key);
On Mon, Jun 27, 2022 at 12:20:38PM +, alexander.atana...@virtuozzo.com
wrote:
> From: Alexander Atanasov
>
> Allow the guest to know how much it is ballooned by the host.
> It is useful when debugging out of memory conditions.
>
> When host gets back memory from the guest it is accounted
>
On Mon, Jun 27, 2022 at 04:30:40PM +0800, Jason Wang wrote:
> We currently call virtio_device_ready() after netdev
> registration. Since ndo_open() can be called immediately
> after register_netdev, this means there exists a race between
> ndo_open() and virtio_device_ready(): the driver may start
On Mon, Jun 27, 2022 at 04:14:20PM +0800, Jason Wang wrote:
> On Mon, Jun 27, 2022 at 3:58 PM Michael S. Tsirkin wrote:
> >
> > On Mon, Jun 27, 2022 at 03:45:30PM +0800, Jason Wang wrote:
> > > On Mon, Jun 27, 2022 at 2:39 PM Michael S. Tsirkin
> > > wrote:
> > > >
> > > > On Mon, Jun 27, 2022
On Mon, Jun 27, 2022 at 04:12:57PM +0800, Cindy Lu wrote:
> On Sun, Jun 26, 2022 at 6:01 PM Michael S. Tsirkin wrote:
> >
> > On Sun, Jun 26, 2022 at 05:04:08PM +0800, Cindy Lu wrote:
> > > We count pinned_vm as follow in vhost-vDPA
> > >
> > > lock_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
>
On Mon, Jun 27, 2022 at 04:11:18PM +0800, Jason Wang wrote:
> On Mon, Jun 27, 2022 at 3:33 PM Michael S. Tsirkin wrote:
> >
> > On Mon, Jun 27, 2022 at 10:50:17AM +0800, Jason Wang wrote:
> > > On Fri, Jun 24, 2022 at 2:31 PM Michael S. Tsirkin
> > > wrote:
> > > >
> > > > On Wed, Jun 22, 2022
On Mon, Jun 27, 2022 at 05:18:02PM +0800, Guo Hui wrote:
> Ok thanks Peter, your suggestion is very good, I will modify my patch as you
> suggested.
Because it messes up the order in which people normally read text.
Why is top-posting such a bad thing?
Top-posting.
What is the most annoying thing
On Thu, Jun 23, 2022 at 11:59:56AM +0800, Jason Wang wrote:
On Thu, Jun 23, 2022 at 3:21 AM Eugenio Perez Martin
wrote:
On Wed, Jun 22, 2022 at 5:39 PM Stefano Garzarella wrote:
>
> Hi,
> while developing/testing the vdpa-blk support in libblkio [1], I
> realized that we added several
We currently call virtio_device_ready() after netdev
registration. Since ndo_open() can be called immediately
after register_netdev, this means there exists a race between
ndo_open() and virtio_device_ready(): the driver may start to use the
device before DRIVER_OK which violates the spec.
Fix
On Mon, Jun 27, 2022 at 3:44 PM Michael S. Tsirkin wrote:
>
> On Mon, Jun 27, 2022 at 02:36:56PM +0800, Jason Wang wrote:
> > We used to call virtio_device_ready() after netdev registration.
>
> s/used to call/currently call/
>
> > This
> > cause
>
> s/This cause/Since ndo_open can be called
On Mon, Jun 27, 2022 at 3:58 PM Michael S. Tsirkin wrote:
>
> On Mon, Jun 27, 2022 at 03:45:30PM +0800, Jason Wang wrote:
> > On Mon, Jun 27, 2022 at 2:39 PM Michael S. Tsirkin wrote:
> > >
> > > On Mon, Jun 27, 2022 at 10:30:42AM +0800, Jason Wang wrote:
> > > > On Fri, Jun 24, 2022 at 2:59 PM
On Mon, Jun 27, 2022 at 3:33 PM Michael S. Tsirkin wrote:
>
> On Mon, Jun 27, 2022 at 10:50:17AM +0800, Jason Wang wrote:
> > On Fri, Jun 24, 2022 at 2:31 PM Michael S. Tsirkin wrote:
> > >
> > > On Wed, Jun 22, 2022 at 03:09:31PM +0800, Jason Wang wrote:
> > > > On Wed, Jun 22, 2022 at 3:03 PM
On Mon, Jun 27, 2022 at 03:45:30PM +0800, Jason Wang wrote:
> On Mon, Jun 27, 2022 at 2:39 PM Michael S. Tsirkin wrote:
> >
> > On Mon, Jun 27, 2022 at 10:30:42AM +0800, Jason Wang wrote:
> > > On Fri, Jun 24, 2022 at 2:59 PM Michael S. Tsirkin
> > > wrote:
> > > >
> > > > On Fri, Jun 24, 2022
On Mon, Jun 27, 2022 at 10:13:50AM +0800, Guo Hui wrote:
> The instructions assigned to the vcpu_is_preempted function parameter
> in the X86 architecture physical machine are redundant instructions,
> causing the multi-core performance of Unixbench to drop by about 4% to 5%.
> The C function is
On Mon, Jun 27, 2022 at 2:39 PM Michael S. Tsirkin wrote:
>
> On Mon, Jun 27, 2022 at 10:30:42AM +0800, Jason Wang wrote:
> > On Fri, Jun 24, 2022 at 2:59 PM Michael S. Tsirkin wrote:
> > >
> > > On Fri, Jun 24, 2022 at 10:56:05AM +0800, Xuan Zhuo wrote:
> > > > Add queue_notify_data in struct
On Mon, Jun 27, 2022 at 02:36:56PM +0800, Jason Wang wrote:
> We used to call virtio_device_ready() after netdev registration.
s/used to call/currently call/
> This
> cause
s/This cause/Since ndo_open can be called immediately
after register_netdev, this means there exists/
> a race between
On Mon, Jun 27, 2022 at 10:50:17AM +0800, Jason Wang wrote:
> On Fri, Jun 24, 2022 at 2:31 PM Michael S. Tsirkin wrote:
> >
> > On Wed, Jun 22, 2022 at 03:09:31PM +0800, Jason Wang wrote:
> > > On Wed, Jun 22, 2022 at 3:03 PM Michael S. Tsirkin
> > > wrote:
> > > >
> > > > On Wed, Jun 22, 2022
> From: Nicolin Chen
> Sent: Friday, June 24, 2022 4:00 AM
>
> Un-inline the domain specific logic from the attach/detach_group ops into
> two paired functions vfio_iommu_alloc_attach_domain() and
> vfio_iommu_detach_destroy_domain() that strictly deal with creating and
> destroying struct
We used to call virtio_device_ready() after netdev registration. This
cause a race between ndo_open() and virtio_device_ready(): if
ndo_open() is called before virtio_device_ready(), the driver may
start to use the device before DRIVER_OK which violates the spec.
Fixing this by switching to use
On Mon, Jun 27, 2022 at 10:30:42AM +0800, Jason Wang wrote:
> On Fri, Jun 24, 2022 at 2:59 PM Michael S. Tsirkin wrote:
> >
> > On Fri, Jun 24, 2022 at 10:56:05AM +0800, Xuan Zhuo wrote:
> > > Add queue_notify_data in struct virtio_pci_common_cfg, which comes from
> > > here
On Fri, Jun 17, 2022 at 3:29 PM Jason Wang wrote:
>
> We used to call virtio_device_ready() after netdev registration. This
> cause a race between ndo_open() and virtio_device_ready(): if
> ndo_open() is called before virtio_device_ready(), the driver may
> start to use the device before
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