On Mon, Nov 20, 2023 at 10:13:15AM +, Reshetova, Elena wrote:
> Hi Stefan,
>
> Thank you for following up on this! Please find my comments inline.
>
> > -Original Message-
> > From: Stefan Hajnoczi
> > Sent: Thursday, November 16, 2023 10:03 PM
&g
Hi Elena,
You raised concerns about using packed virtqueues with untrusted devices at
Linux Plumbers Conference. I reviewed the specification and did not find
fundamental issues that would preclude the use of packed virtqueues in
untrusted devices. Do you have more information about issues with pac
On Fri, Sep 08, 2023 at 01:03:26PM +0100, Alex Bennée wrote:
>
> Stefan Hajnoczi writes:
>
> > On Fri, Sep 01, 2023 at 12:00:18PM +0100, Alex Bennée wrote:
> >> Currently QEMU has to know some details about the VirtIO device
> >> supported by a vhost-user dae
On Tue, Sep 05, 2023 at 10:34:11AM +0100, Alex Bennée wrote:
>
> Albert Esteve writes:
>
> > This looks great! Thanks for this proposal.
> >
> > On Fri, Sep 1, 2023 at 1:00 PM Alex Bennée wrote:
> >
> > Currently QEMU has to know some details about the VirtIO device
> > supported by a vhost-u
On Fri, Sep 01, 2023 at 12:00:18PM +0100, Alex Bennée wrote:
> Currently QEMU has to know some details about the VirtIO device
> supported by a vhost-user daemon to be able to setup the guest. This
> makes it hard for QEMU to add support for additional vhost-user
> daemons without adding specific s
On Fri, Aug 18, 2023 at 05:55:42PM +0800, Zhu, Lingshan wrote:
>
>
> On 8/18/2023 12:04 AM, Stefan Hajnoczi wrote:
> > On Thu, Aug 17, 2023 at 05:15:16PM +0200, Eugenio Perez Martin wrote:
> > > On Tue, Aug 15, 2023 at 2:29 PM Stefan Hajnoczi
> > > wrote:
>
On Thu, Aug 17, 2023 at 05:15:16PM +0200, Eugenio Perez Martin wrote:
> On Tue, Aug 15, 2023 at 2:29 PM Stefan Hajnoczi wrote:
> >
> > On Tue, Aug 15, 2023 at 06:31:23PM +0800, Zhu, Lingshan wrote:
> > >
> > >
> > > On 8/14/2023 10:30 PM, Stefan Hajnoczi
On Wed, Aug 16, 2023 at 12:25:39PM +0800, Zhu, Lingshan wrote:
>
>
> On 8/15/2023 8:33 PM, Stefan Hajnoczi wrote:
> > On Tue, Aug 15, 2023 at 07:07:42PM +0800, Zhu, Lingshan wrote:
> > >
> > > On 8/14/2023 11:00 PM, Stefan Hajnoczi wrote:
> > > >
On Tue, Aug 15, 2023 at 07:07:42PM +0800, Zhu, Lingshan wrote:
>
>
> On 8/14/2023 11:00 PM, Stefan Hajnoczi wrote:
> > On Tue, Aug 15, 2023 at 03:29:02AM +0800, Zhu Lingshan wrote:
> > > This commit specifies the actions to be taken by the device upon
> > > SU
On Tue, Aug 15, 2023 at 06:31:23PM +0800, Zhu, Lingshan wrote:
>
>
> On 8/14/2023 10:30 PM, Stefan Hajnoczi wrote:
> > On Tue, Aug 15, 2023 at 03:29:00AM +0800, Zhu Lingshan wrote:
> > > This patch introudces a new status bit in the device status: SUSPEND.
> > &g
On Tue, Aug 15, 2023 at 03:29:03AM +0800, Zhu Lingshan wrote:
> This commit specifies the constraints of the virtqueue state,
> and the actions should be taken by the device when SUSPEND
> and DRIVER_OK is set
>
> Signed-off-by: Jason Wang
> Signed-off-by: Zhu Lingshan
> ---
> content.tex | 31
On Tue, Aug 15, 2023 at 03:29:02AM +0800, Zhu Lingshan wrote:
> This commit specifies the actions to be taken by the device upon
> SUSPEND.
>
> Signed-off-by: Jason Wang
> Signed-off-by: Eugenio PÃrez
> Signed-off-by: Zhu Lingshan
> ---
> content.tex | 9 +
> 1 file changed, 9 insertio
On Tue, Aug 15, 2023 at 03:28:59AM +0800, Zhu Lingshan wrote:
> This seires introduces
> 1)a new SUSPEND bit in the device status
> Which is used to suspend the device, so that the device states
> and virtqueue states are stablized.
>
> 2)virtqueue state and accessors, to get and set last_avail_id
On Tue, Aug 15, 2023 at 03:29:04AM +0800, Zhu Lingshan wrote:
> This patch adds two new le16 fields to common configruation structure
> to support VIRTIO_F_QUEUE_STATE in PCI tranport layer.
>
> Signed-off-by: Jason Wang
> Signed-off-by: Zhu Lingshan
> ---
> transport-pci.tex | 15 +
On Tue, Aug 15, 2023 at 03:29:00AM +0800, Zhu Lingshan wrote:
> This patch introudces a new status bit in the device status: SUSPEND.
>
> This SUSPEND bit can be used by the driver to suspend a device,
> in order to stablize the device states and virtqueue states.
>
> Its main use case is live mi
On Tue, Aug 15, 2023 at 03:29:01AM +0800, Zhu Lingshan wrote:
> This patch adds new device facility to save and restore virtqueue
> state. The virtqueue state is split into two parts:
>
> - The available state: The state that is used for read the next
> available buffer.
> - The used state: The
On Tue, Aug 15, 2023 at 03:28:59AM +0800, Zhu Lingshan wrote:
> This seires introduces
> 1)a new SUSPEND bit in the device status
> Which is used to suspend the device, so that the device states
> and virtqueue states are stablized.
Hanna, you might be interested in this because it has overlap wit
On Wed, Jul 26, 2023 at 12:02:33PM -0400, Michael S. Tsirkin wrote:
> On Mon, Jul 24, 2023 at 02:08:39PM -0400, Stefan Hajnoczi wrote:
> > On Thu, Jul 20, 2023 at 06:22:08PM -0400, Michael S. Tsirkin wrote:
> > > On Thu, Jul 20, 2023 at 05:31:03PM -0400, Stefan Hajnoczi wrote:
On Thu, Jul 20, 2023 at 06:22:08PM -0400, Michael S. Tsirkin wrote:
> On Thu, Jul 20, 2023 at 05:31:03PM -0400, Stefan Hajnoczi wrote:
> > On Thu, 20 Jul 2023 at 17:15, Michael S. Tsirkin wrote:
> > >
> > > On Thu, Jul 20, 2023 at 03:58:37PM -0400, Stefan Hajnoczi wr
On Thu, Jul 06, 2023 at 12:48:20PM -0400, Michael S. Tsirkin wrote:
> On Tue, Jul 04, 2023 at 01:36:00PM +0100, Alex Bennée wrote:
> > Currently QEMU has to know some details about the back-end to be able
> > to setup the guest. While various parts of the setup can be delegated
> > to the backend (
On Fri, Jul 07, 2023 at 12:27:39PM +0200, Stefano Garzarella wrote:
> On Tue, Jul 04, 2023 at 04:02:42PM +0100, Alex Bennée wrote:
> >
> > Stefano Garzarella writes:
> >
> > > On Tue, Jul 04, 2023 at 01:36:00PM +0100, Alex Bennée wrote:
> > > > diff --git a/docs/interop/vhost-user.rst b/docs/int
On Tue, Jul 04, 2023 at 01:36:00PM +0100, Alex Bennée wrote:
> diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
> index c4e0cbd702..28b021d5d3 100644
> --- a/hw/virtio/vhost-user.c
> +++ b/hw/virtio/vhost-user.c
> @@ -202,6 +202,13 @@ typedef struct VhostUserInflight {
> uint16_t q
On Tue, Jul 04, 2023 at 01:36:00PM +0100, Alex Bennée wrote:
> Currently QEMU has to know some details about the back-end to be able
> to setup the guest. While various parts of the setup can be delegated
> to the backend (for example config handling) this is a very piecemeal
> approach.
>
> This
On Wed, Jul 19, 2023 at 04:21:08PM -0700, Roman Kiryanov wrote:
> Hi,
>
> I work in Android Studio Emulator and we use virtio-snd (implemented
> ourselves) for audio output/input. According to the spec (1.2), the
> device has one TX virtqueue for all output streams and one RX
> virtqueue for all i
On Mon, Apr 24, 2023 at 11:40:02AM +0800, Jason Wang wrote:
> On Sun, Apr 23, 2023 at 7:31 PM zhenwei pi wrote:
> > I develop an kernel initiator(unstable, WIP version, currently TCP/RDMA
> > supported):
> > https://github.com/pizhenwei/linux/tree/virtio-of-github
>
> A quick glance at the code t
On Mon, Apr 24, 2023 at 11:40:02AM +0800, Jason Wang wrote:
> On Sun, Apr 23, 2023 at 7:31 PM zhenwei pi wrote:
> > "Virtio Over Fabrics" aims at "reuse virtio device specifications", and
> > provides network defined peripheral devices.
> > And this protocol also could be used in virtualization en
+++---
> 1 file changed, 25 insertions(+), 25 deletions(-)
Reviewed-by: Stefan Hajnoczi
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On Wed, Apr 05, 2023 at 03:57:09PM +0200, Cornelia Huck wrote:
> That said, let me propose the following timeline:
>
> - July 1st 2023: enter feature freeze; all proposed changes must at
> least have an open github issue that refers to a proposal on-list
> - August 1st 2023: enter change freeze;
On Mon, Apr 03, 2023 at 08:27:28PM +, Parav Pandit wrote:
>
> > From: Stefan Hajnoczi
> > Sent: Monday, April 3, 2023 3:10 PM
>
>
> > Maybe call it "Memory-mapped Transitional"? That name would be easier to
> > understand.
> >
> Sounds
n parallel with other
> commands, and returning same value across uses - comment by Lingshan
> add conformance clauses for new error codes
> ---
> admin.tex | 227 ++
> 1 file changed, 227 insertions(+)
Reviewed-by: Stefan Hajnoc
> admin.tex | 102 +++++-
> 1 file changed, 101 insertions(+), 1 deletion(-)
Reviewed-by: Stefan Hajnoczi
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On Mon, Apr 03, 2023 at 11:03:29AM -0400, Michael S. Tsirkin wrote:
> @@ -1033,6 +1037,19 @@ \subsubsection{Common configuration structure
> layout}\label{sec:Virtio Transport
> This field exists only if VIRTIO_F_RING_RESET has been
> negotiated. (see \ref{sec:Basic Facilities of
t; ---
> admin.tex | 75 +++++
> content.tex | 7 +++--
> 2 files changed, 80 insertions(+), 2 deletions(-)
Reviewed-by: Stefan Hajnoczi
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data is a multiple of qword,
> so things are aligned, suggested by Jiri
> add Q_OK qualifier for success
> ---
> admin.tex| 121 +++
> introduction.tex | 3 ++
> 2 files changed, 124 insertions(+)
My thoughts on status/s
++++++
> content.tex | 2 ++
> 2 files changed, 65 insertions(+)
> create mode 100644 admin.tex
Reviewed-by: Stefan Hajnoczi
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On Mon, Apr 03, 2023 at 01:48:46PM -0400, Michael S. Tsirkin wrote:
> On Mon, Apr 03, 2023 at 10:53:29AM -0400, Parav Pandit wrote:
> > On 4/3/2023 10:45 AM, Stefan Hajnoczi wrote:
> > > On Fri, Mar 31, 2023 at 01:58:23AM +0300, Parav Pandit wrote:
> > > > 3. A hyp
On Mon, Apr 03, 2023 at 10:53:29AM -0400, Parav Pandit wrote:
>
>
> On 4/3/2023 10:45 AM, Stefan Hajnoczi wrote:
> > On Fri, Mar 31, 2023 at 01:58:23AM +0300, Parav Pandit wrote:
> > > Overview:
> > > -
> > > The Transitional MMR device i
On Fri, Mar 31, 2023 at 01:58:23AM +0300, Parav Pandit wrote:
> Overview:
> -
> The Transitional MMR device is a variant of the transitional PCI device.
What does "MMR" mean?
> It has its own small Device ID range. It does not have I/O
> region BAR; instead it exposes legacy configuration
ces")
> Cc: sta...@vger.kernel.org
> Signed-off-by: Dmitry Fomichev
> ---
> drivers/block/virtio_blk.c | 238 +---
> include/uapi/linux/virtio_blk.h | 18 +--
> 2 files changed, 165 insertions(+), 91 deletions(-)
Reviewed-by: Stefan Hajnoczi
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d3d ("virtio-blk: add support for zoned block devices")
> Cc: sta...@vger.kernel.org
> Signed-off-by: Dmitry Fomichev
> ---
> drivers/block/virtio_blk.c | 34 ++--------
> 1 file changed, 18 insertions(+), 16 deletions(-)
Reviewed-by: Stefan Hajnoczi
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On Thu, Mar 09, 2023 at 02:20:59PM +0530, Viresh Kumar wrote:
> Hello,
>
> This patchset tries to update the vhost-user protocol to make it support
> special
> memory mapping required in case of Xen hypervisor.
>
> The first patch is mostly cleanup and second one introduces a new xen specific
>
ional memory mapping requirements.
> When this feature is negotiated, the front-end will send the additional
> information within the memory regions themselves.
>
> Signed-off-by: Viresh Kumar
> ---
> docs/interop/vhost-user.rst | 21 +++++
> 1 file changed, 21
n optimization, the protocol remains the same.
>
> Signed-off-by: Viresh Kumar
> ---
> docs/interop/vhost-user.rst | 39 +--------
> 1 file changed, 18 insertions(+), 21 deletions(-)
Reviewed-by: Stefan Hajnoczi
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On Thu, Mar 09, 2023 at 08:55:15AM -0500, Michael S. Tsirkin wrote:
> On Thu, Mar 09, 2023 at 07:35:42AM -0500, Stefan Hajnoczi wrote:
> > On Wed, Mar 08, 2023 at 12:21:46PM -0500, Michael S. Tsirkin wrote:
> > > On Wed, Mar 08, 2023 at 12:15:23PM -0500, Stefan Hajnoczi wrote:
On Wed, Mar 08, 2023 at 12:21:46PM -0500, Michael S. Tsirkin wrote:
> On Wed, Mar 08, 2023 at 12:15:23PM -0500, Stefan Hajnoczi wrote:
> > > > > > Or we could say that admin commands must complete within bounded
> > > > > > time,
> > > > > &g
m...@redhat.com wrote:
> >> >> >> >On Mon, Mar 06, 2023 at 06:03:40AM -0500, Stefan Hajnoczi wrote:
> >> >> >> >> On Sun, Mar 05, 2023 at 07:18:24PM -0500, Michael S. Tsirkin
> >> >> >> >> wrote:
> >> >>
On Wed, Mar 08, 2023 at 06:19:41PM +0200, Max Gurtovoy wrote:
>
>
> On 08/03/2023 16:13, Stefan Hajnoczi wrote:
> > On Wed, Mar 08, 2023 at 01:17:33PM +0200, Max Gurtovoy wrote:
> > >
> > >
> > > On 06/03/2023 18:25, Stefan Hajnoczi wrote:
> > &
On Wed, Mar 08, 2023 at 01:17:33PM +0200, Max Gurtovoy wrote:
>
>
> On 06/03/2023 18:25, Stefan Hajnoczi wrote:
> > On Mon, Mar 06, 2023 at 05:28:03PM +0200, Max Gurtovoy wrote:
> > >
> > >
> > > On 06/03/2023 13:20, Stefan Hajnoczi wrote:
> &
ue, Mar 07, 2023 at 09:03:18AM +0100, Jiri Pirko wrote:
> >> >> Mon, Mar 06, 2023 at 07:37:31PM CET, m...@redhat.com wrote:
> >> >> >On Mon, Mar 06, 2023 at 06:03:40AM -0500, Stefan Hajnoczi wrote:
> >> >> >> On Sun, Mar 05, 2023 at 07:18:24PM -0
On Wed, Mar 08, 2023 at 01:17:44PM +0800, Jason Wang wrote:
> On Wed, Mar 8, 2023 at 3:09 AM Parav Pandit wrote:
> >
> >
> >
> > > From: Stefan Hajnoczi
> > > Sent: Tuesday, March 7, 2023 2:04 PM
> >
> > > An alternative is unconditio
on, Mar 06, 2023 at 06:03:40AM -0500, Stefan Hajnoczi wrote:
> >> >> On Sun, Mar 05, 2023 at 07:18:24PM -0500, Michael S. Tsirkin wrote:
> >> >> > On Sun, Mar 05, 2023 at 07:03:02PM -0500, Stefan Hajnoczi wrote:
> >> >> > > On Sun, Mar 05, 2023 at
On Tue, Mar 07, 2023 at 11:13:36AM +0530, Viresh Kumar wrote:
> On 06-03-23, 10:34, Stefan Hajnoczi wrote:
> > On Mon, Mar 06, 2023 at 04:40:24PM +0530, Viresh Kumar wrote:
> > > +Xen mmap description
> > > +
> > > +
> > &
On Tue, Mar 07, 2023 at 09:03:18AM +0100, Jiri Pirko wrote:
> Mon, Mar 06, 2023 at 07:37:31PM CET, m...@redhat.com wrote:
> >On Mon, Mar 06, 2023 at 06:03:40AM -0500, Stefan Hajnoczi wrote:
> >> On Sun, Mar 05, 2023 at 07:18:24PM -0500, Michael S. Tsirkin wrote:
> >> &
On Mon, Mar 06, 2023 at 01:37:31PM -0500, Michael S. Tsirkin wrote:
> On Mon, Mar 06, 2023 at 06:03:40AM -0500, Stefan Hajnoczi wrote:
> > On Sun, Mar 05, 2023 at 07:18:24PM -0500, Michael S. Tsirkin wrote:
> > > On Sun, Mar 05, 2023 at 07:03:02PM -0500, Stefan Hajnoczi wrote:
&
On Mon, Mar 06, 2023 at 05:28:03PM +0200, Max Gurtovoy wrote:
>
>
> On 06/03/2023 13:20, Stefan Hajnoczi wrote:
> > On Mon, Mar 06, 2023 at 04:00:50PM +0800, Jason Wang wrote:
> > >
> > > 在 2023/3/6 08:03, Stefan Hajnoczi 写道:
> > > > On Sun, Mar 05,
On Mon, Mar 06, 2023 at 04:40:24PM +0530, Viresh Kumar wrote:
> The current model of memory mapping at the back-end works fine where a
> standard call to mmap() (for the respective file descriptor) is enough
> before the front-end can start accessing the guest memory.
>
> There are other complex c
On Mon, Mar 06, 2023 at 04:00:50PM +0800, Jason Wang wrote:
>
> 在 2023/3/6 08:03, Stefan Hajnoczi 写道:
> > On Sun, Mar 05, 2023 at 04:38:59AM -0500, Michael S. Tsirkin wrote:
> > > On Fri, Mar 03, 2023 at 03:21:33PM -0500, Stefan Hajnoczi wrote:
> > > > What happe
On Sun, Mar 05, 2023 at 07:18:24PM -0500, Michael S. Tsirkin wrote:
> On Sun, Mar 05, 2023 at 07:03:02PM -0500, Stefan Hajnoczi wrote:
> > On Sun, Mar 05, 2023 at 04:38:59AM -0500, Michael S. Tsirkin wrote:
> > > On Fri, Mar 03, 2023 at 03:21:33PM -0500, Stefan Hajnoczi wrote:
&g
On Sun, Mar 05, 2023 at 04:38:59AM -0500, Michael S. Tsirkin wrote:
> On Fri, Mar 03, 2023 at 03:21:33PM -0500, Stefan Hajnoczi wrote:
> > What happens if a command takes 1 second to complete, is the device
> > allowed to process the next command from the virtqueue during this tim
On Fri, Mar 03, 2023 at 08:18:43AM -0500, Michael S. Tsirkin wrote:
> On Fri, Mar 03, 2023 at 08:13:37AM -0500, Stefan Hajnoczi wrote:
> > On Thu, Mar 02, 2023 at 06:57:24PM -0500, Michael S. Tsirkin wrote:
> > > On Thu, Mar 02, 2023 at 03:10:11PM -0500, Stefan Hajnoczi wrote:
&
On Fri, Mar 03, 2023 at 08:37:31AM -0500, Michael S. Tsirkin wrote:
> On Fri, Mar 03, 2023 at 08:28:40AM -0500, Stefan Hajnoczi wrote:
> > On Thu, Mar 02, 2023 at 07:05:14PM -0500, Michael S. Tsirkin wrote:
> > > On Thu, Mar 02, 2023 at 03:40:07PM -0500, Stefan Hajnoczi wrote:
&
On Thu, Mar 02, 2023 at 07:05:14PM -0500, Michael S. Tsirkin wrote:
> On Thu, Mar 02, 2023 at 03:40:07PM -0500, Stefan Hajnoczi wrote:
> > On Thu, Mar 02, 2023 at 08:05:06AM -0500, Michael S. Tsirkin wrote:
> > > The admin virtqueues will be the first interface to is
On Thu, Mar 02, 2023 at 07:01:56PM -0500, Michael S. Tsirkin wrote:
> On Thu, Mar 02, 2023 at 03:19:12PM -0500, Stefan Hajnoczi wrote:
> > On Thu, Mar 02, 2023 at 06:40:29PM +, Parav Pandit wrote:
> > >
> > > > From: Michael S. Tsirkin
> > >
On Thu, Mar 02, 2023 at 06:57:24PM -0500, Michael S. Tsirkin wrote:
> On Thu, Mar 02, 2023 at 03:10:11PM -0500, Stefan Hajnoczi wrote:
> > On Thu, Mar 02, 2023 at 08:05:02AM -0500, Michael S. Tsirkin wrote:
> > > This introduces a general structure for group administration comma
On Thu, Mar 02, 2023 at 08:05:30AM -0500, Michael S. Tsirkin wrote:
> vq reset and shared memory are unsupported, too.
>
> Signed-off-by: Michael S. Tsirkin
> ---
> content.tex | 2 ++
> 1 file changed, 2 insertions(+)
Reviewed-by: Stefan Hajnoczi
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On Thu, Mar 02, 2023 at 08:05:22AM -0500, Michael S. Tsirkin wrote:
> Add commands to find out which commands does each group support,
> as well as enable their use by driver.
> This will be especially useful once we have multiple group types.
>
> An alternative is per-type VQs. This is possible b
t's reserved in a central place, but it
> does not hurt to remind implementers to mask it.
>
> Note: there are more features to add to this list.
> Will be done later with a patch on top.
>
> Signed-off-by: Michael S. Tsirkin
> ---
> content.tex | 12 ++++
&g
t's reserved in a central place, but it
> does not hurt to remind implementers to mask it.
>
> Signed-off-by: Michael S. Tsirkin
> ---
> content.tex | 12
> 1 file changed, 12 insertions(+)
Reviewed-by: Stefan Hajnoczi
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On Thu, Mar 02, 2023 at 08:05:10AM -0500, Michael S. Tsirkin wrote:
> Add new registers to the PCI common configuration structure.
>
> These registers will be used for querying the indices of the admin
> virtqueues of the owner device. To configure, reset or enable the admin
> virtqueues, the driv
On Thu, Mar 02, 2023 at 08:05:06AM -0500, Michael S. Tsirkin wrote:
> The admin virtqueues will be the first interface to issue admin commands.
>
> Currently virtio specification defines control virtqueue to manipulate
> features and configuration of the device it operates on. However,
> control v
On Thu, Mar 02, 2023 at 06:40:29PM +, Parav Pandit wrote:
>
> > From: Michael S. Tsirkin
> > Sent: Thursday, March 2, 2023 8:05 AM
>
> > +When \field{status} is VIRTIO_ADMIN_STATUS_OK, \field{status_qialifier}
> > +is reserved and set to zero by the device.
> > +
> s/status_qialifier/status_
On Thu, Mar 02, 2023 at 08:05:02AM -0500, Michael S. Tsirkin wrote:
> This introduces a general structure for group administration commands,
> used to control device groups through their owner.
>
> Following patches will introduce specific commands and an interface for
> submitting these commands
On Thu, Mar 02, 2023 at 08:04:57AM -0500, Michael S. Tsirkin wrote:
> +The following group types, and their identifiers, are currently specified):
spurious ')'
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On Thu, Mar 02, 2023 at 01:49:07PM +0530, Viresh Kumar wrote:
> On 01-03-23, 12:29, Stefan Hajnoczi wrote:
> > What is the advantage over defining separate messages? Separate messages
> > are cleaner and more typesafe.
>
> I thought we wanted to keep single message for one
On Wed, Mar 01, 2023 at 04:31:41PM +, Alex Bennée wrote:
>
> Stefan Hajnoczi writes:
>
> > [[PGP Signed Part:Undecided]]
> > Resend - for some reason my email didn't make it out.
> >
> > From: Stefan Hajnoczi
> > Subject: Re: [virtio-dev] [R
Resend - for some reason my email didn't make it out.
- Forwarded message from Stefan Hajnoczi -
Date: Tue, 21 Feb 2023 10:17:01 -0500
From: Stefan Hajnoczi
To: Viresh Kumar
Cc: qemu-de...@nongnu.org, virtio-dev@lists.oasis-open.org, "Michael S.
Tsirkin" , Vincent
le32 write_granularity;
> -u8 model;
> -u8 unused2[3];
> -} zoned;
> -};
> -\end{lstlisting}
> -
> -
> \subsubsection{Legacy Interface: Device configuration
> layout}\label{sec:Device Types / Block Device / Device configuration layout /
> Legacy Interface: Device configuration layout}
> When using the legacy interface, transitional devices and drivers
> MUST format the fields in struct virtio_blk_config
> --
> 2.26.2
Yes, please!
Reviewed-by: Stefan Hajnoczi
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-specific code in the patch is heavily influenced by NVMe ZNS
> code in drivers/nvme/host/zns.c, but it is simpler because the proposed
> virtio ZBD draft only covers the zoned device features that are
> relevant to the zoned functionality provided by Linux block layer.
>
> Co-devel
Required (SWR) zones that require some additional handling from the
> host
> +for correct operation. All write requests to SWR zones must be sequential and
There is a "must" here. Same question as above.
Aside from that:
Reviewed-by: Stefan Hajnoczi
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On Mon, Oct 31, 2022 at 02:22:22PM +, Usama Arif wrote:
> On 27/10/2022 22:27, Stefan Hajnoczi wrote:
> > On Fri, Oct 07, 2022 at 05:56:42PM +0100, Usama Arif wrote:
> > > This includes the additions to the corresponding device and driver
> > > conformances.
> &
On Mon, Oct 31, 2022 at 11:45:55AM -0400, Michael S. Tsirkin wrote:
> On Thu, Oct 27, 2022 at 05:27:28PM -0400, Stefan Hajnoczi wrote:
> > On Fri, Oct 07, 2022 at 05:56:42PM +0100, Usama Arif wrote:
> > > This includes the additions to the corresponding device and driver
On Fri, Oct 07, 2022 at 05:56:41PM +0100, Usama Arif wrote:
> This includes the PCI device conformances for these notification
> capabilities.
>
> Signed-off-by: Usama Arif
> Signed-off-by: Stefan Hajnoczi
You can keep this, but please see comments below.
> Signed-off-
On Fri, Oct 07, 2022 at 05:56:42PM +0100, Usama Arif wrote:
> This includes the additions to the corresponding device and driver
> conformances.
>
> Signed-off-by: Usama Arif
> Signed-off-by: Stefan Hajnoczi
You can keep this. One thought:
I realized that virtio-mmio suppor
en adding support
> for virtio-vhost-user device.
>
> Signed-off-by: Usama Arif
> Signed-off-by: Stefan Hajnoczi
> Signed-off-by: Nikos Dragazis
> ---
> content.tex | 35 ++-
> 1 file changed, 22 insertions(+), 13 deletions(-)
>
> dif
otocol instead of a family of
> new virtio device types, one for each vhost-user device type.
>
> A HTML version with the changes is available at [1].
>
> For more information about virtio-vhost-user, see [2].
>
> These patches are based on the work initially done by Stefa
-specific code in the patch is heavily influenced by NVMe ZNS
> code in drivers/nvme/host/zns.c, but it is simpler because the proposed
> virtio ZBD draft only covers the zoned device features that are
> relevant to the zoned functionality provided by Linux block layer.
>
> Co-devel
-
> 1 file changed, 16 insertions(+), 13 deletions(-)
Reviewed-by: Stefan Hajnoczi
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On Sun, Sep 04, 2022 at 12:56:01PM -0400, Dmitry Fomichev wrote:
> @@ -4746,7 +4930,15 @@ \subsection{Device Operation}\label{sec:Device Types /
> Block Device / Device Ope
> le32 reserved;
> le64 sector;
> u8 data[];
> -u8 status;
> +union {
> +
On Sun, Sep 04, 2022 at 12:56:01PM -0400, Dmitry Fomichev wrote:
> Introduce support for Zoned Block Devices to virtio.
>
> Zoned Block Devices (ZBDs) aim to achieve a better capacity, latency
> and/or cost characteristics compared to commonly available block
> devices by getting the entire LBA sp
On Fri, Sep 09, 2022 at 08:52:02AM +, Afsa, Baptiste wrote:
> Hello,
>
> I ran some benchmarks to compare the performances achieved by the swiotlb
> approach and our dynamic memory granting solution while using different buffer
> sizes. Without any surprise, the swiotlb approach performs much
On Wed, Sep 07, 2022 at 03:09:27PM +0100, Dr. David Alan Gilbert wrote:
> * Stefan Hajnoczi (stefa...@redhat.com) wrote:
> > On Tue, Sep 06, 2022 at 06:33:36PM +0100, Dr. David Alan Gilbert wrote:
> > > * Stefan Hajnoczi (stefa...@redhat.com) wrote:
> > > > On Sat, Se
On Tue, Sep 06, 2022 at 06:33:36PM +0100, Dr. David Alan Gilbert wrote:
> * Stefan Hajnoczi (stefa...@redhat.com) wrote:
> > On Sat, Sep 03, 2022 at 07:43:08AM +, Alyssa Ross wrote:
> > > Hi Alex and everyone else, just catching up on some mail and wanted to
> &g
On Sat, Sep 03, 2022 at 07:43:08AM +, Alyssa Ross wrote:
> Hi Alex and everyone else, just catching up on some mail and wanted to
> clarify some things:
>
> Alex Bennée writes:
>
> > This email is driven by a brain storming session at a recent sprint
> > where we considered what VirtIO devic
On Thu, 4 Aug 2022 at 18:41, Dmitry Fomichev wrote:
Hi Dmitry,
I think RFC can be removed from the Subject line for the next revision
of this patch.
For instructions on how to bring this to a Technical Committee vote, see:
https://github.com/oasis-tcs/virtio-spec#use-of-github-issues
>
> Introd
On Fri, Jul 15, 2022 at 02:18:32PM +, Afsa, Baptiste wrote:
> > One thing I didn't see in your proposal was a copying vs zero-copy
> > threshold. Maybe it helps to look at the size of requests and copy data
> > instead of granting pages when descriptors are small? On the other hand,
> > a 4 KB
On Fri, Jul 08, 2022 at 01:56:31PM +, Afsa, Baptiste wrote:
> Hello everyone,
>
> The traditional virtio model relies on the ability for the host to access the
> entire memory of the guest VM.
The VIRTIO device model (virtqueues, configuration space, feature
negotiation, etc) does not rely on
On Sun, Jun 12, 2022 at 01:58:36AM +, Dmitry Fomichev wrote:
> On Sat, 2022-06-11 at 21:09 +0100, Stefan Hajnoczi wrote:
> > On Thu, Jun 09, 2022 at 08:43:21PM -0400, Dmitry Fomichev wrote:
> > > +Host-managed zoned block devices have their LBA range divided to
> > &
On Thu, Jun 09, 2022 at 08:43:21PM -0400, Dmitry Fomichev wrote:
> +Host-managed zoned block devices have their LBA range divided to Sequential
> +Write Required (SWR) zones that require some additional handling from the
> host
> +for sustainable operation. All write requests to SWR zones must be
On Sat, Jun 04, 2022 at 12:09:46AM +, Dmitry Fomichev wrote:
> On Fri, 2022-06-03 at 09:08 +0100, Stefan Hajnoczi wrote:
> > (Resent from my subscriber email.)
> >
> > On Fri, 3 Jun 2022 at 03:30, Dmitry Fomichev
> > wrote:
> > >
> > > On Th
On Fri, Jun 03, 2022 at 05:16:01PM +0900, Damien Le Moal wrote:
> On 6/3/22 16:33, Stefan Hajnoczi wrote:
> [...]
> >> If partial is 0, the nr_zones will contain the number of zones that
> >> potentially
> >> can be reported starting from the request "secto
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