From: Stefan Hajnoczi
The vhost-user device backend facilitates vhost-user device emulation
through vhost-user protocol exchanges and access to shared memory.
Software-defined networking, storage, and other I/O appliances can
provide services through this device.
This device is based on Wei
Remove the extra PCI capabilities and use the existing virtio registers
instead. This way we obtain portability across transports.
Add a reference to the "Shared Memory Regions" section.
Add some more minor changes (add missing commas, rename sections,
enhance "Device Initialization" section,
Signed-off-by: Nikos Dragazis
---
virtio-vhost-user.tex | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/virtio-vhost-user.tex b/virtio-vhost-user.tex
index 328baec..6bcc6af 100644
--- a/virtio-vhost-user.tex
+++ b/virtio-vhost-user.tex
@@ -220,7 +220,7 @@
Change the device id from 28 to 32.
Signed-off-by: Nikos Dragazis
---
content.tex | 2 +-
virtio-vhost-user.tex | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/content.tex b/content.tex
index 9f3e86d..8b4aa88 100644
--- a/content.tex
+++ b/content.tex
@@ -2801,7
The configuration structure for the notification capability has certain
device/driver requirements, similar to those of the MSI-X vector
configuration. Add these requirements to the device spec.
Signed-off-by: Nikos Dragazis
---
virtio-vhost-user.tex | 42
Signed-off-by: Nikos Dragazis
---
virtio-vhost-user.tex | 13 +
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/virtio-vhost-user.tex b/virtio-vhost-user.tex
index a673526..328baec 100644
--- a/virtio-vhost-user.tex
+++ b/virtio-vhost-user.tex
@@ -142,10 +142,15 @@
Signed-off-by: Nikos Dragazis
Reviewed-by: Stefan Hajnoczi
---
virtio-vhost-user.tex | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/virtio-vhost-user.tex b/virtio-vhost-user.tex
index ac96dc2..13ecd41 100644
--- a/virtio-vhost-user.tex
+++ b/virtio-vhost-user.tex
@@
Change the definitions of VIRTIO_VHOST_USER_STATUS_MASTER_UP and
VIRTIO_VHOST_USER_STATUS_SLAVE_UP so that they refer to different bits.
This is necessary because these two flags are orthogonal, i.e., they are
unrelated and so they must be set/cleared individually.
Mention explicitly who sets the
Signed-off-by: Nikos Dragazis
---
conformance.tex | 25 ++---
virtio-vhost-user.tex | 4 ++--
2 files changed, 24 insertions(+), 5 deletions(-)
diff --git a/conformance.tex b/conformance.tex
index b6fdec0..dcd2199 100644
--- a/conformance.tex
+++ b/conformance.tex
@@
The virtio vhost-user device has shared memory resources. Therefore, it
uses the VIRTIO_PCI_CAP_SHARED_MEMORY_CFG capability to standardize
those resources through the PCI Configuration Space. This patch
synchronizes the virtio vhost-user device spec with the following shared
memory resources
Hi everyone,
this patch presents an updated version of the virtio device spec for the
virtio-vhost-user device. The initial RFC implementation can be found
here: [1]. It’s been a long time since the last revision. I’m sending
this patch to kick off the discussion again. I'm Cc-ing Stefan and
On Mon, May 18, 2020 at 6:18 AM David Hildenbrand wrote:
>
> On 15.05.20 19:33, Alexander Duyck wrote:
> > From: Alexander Duyck
> >
> > Free page hints allow the balloon driver to provide information on what
> > pages are not currently in use so that we can avoid the cost of copying
> > them in
On Fri, May 8, 2020 at 2:30 PM Alexander Duyck
wrote:
>
> From: Alexander Duyck
>
> Add support for free page reporting. The idea is to function very similar
> to how the balloon works in that we basically end up madvising the page as
> not being used. However we don't really need to bother with
>> +
>> +\devicenormative{\paragraph}{Free Page Hinting}{Device Types / Memory
>> Balloon Device / Device Operation / Free Page Hinting}
>> +
>> +Normative statements in this section apply if the
>> +VIRTIO_BALLOON_F_FREE_PAGE_HINT feature has been negotiated.
>> +
>> +The device MUST set
On 15.05.20 19:33, Alexander Duyck wrote:
> From: Alexander Duyck
>
> Free page hints allow the balloon driver to provide information on what
> pages are not currently in use so that we can avoid the cost of copying
> them in migration scenarios. Add a feature description for free page hints
>
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