a/hw/vfio/pci.c
> +++ b/hw/vfio/pci.c
> @@ -3296,6 +3296,7 @@ out_teardown:
> vfio_bars_exit(vdev);
> error:
> error_prepend(errp, VFIO_MSG_PREFIX, vbasedev->name);
> +vfio_pci_put_device(vdev);
> }
>
> static void vfio_instance_finalize(Object *obj)
Reviewed-by: John Levon
On Fri, May 23, 2025 at 3:45 PM Stefan Hajnoczi wrote:
> On Mon, May 19, 2025 at 1:03 PM John Snow wrote:
> >
> > The following changes since commit
> 757a34115e7491744a63dfc3d291fd1de5297ee2:
> >
> > Merge tag 'pull-nvme-20250515' of https://gitlab.co
On Tue, May 27, 2025 at 11:39:48AM +0200, Cédric Le Goater wrote:
> On 5/20/25 17:03, John Levon wrote:
> > The series contains an implement of a vfio-user client in QEMU, along with
> > a few
> > more preparatory patches.
>
> I am planning to take first patches 2
*always* correct, and there is less chance of a bug
> > where
> > somebody incorrectly uses vbasedev fd instead. IMO "region->fd" is much
> > cleaner/clearer.
>
> maybe. It's only used in one place : vfio_region_mmap(). I think caching the
> fd value under VFIORegion is overkill.
OK, will do.
thanks
john
ome information
(potentially helpful, potentially not) but repeats the type information
to remove that type.
Signed-off-by: John Snow
---
qapi/audio.json | 2 --
qapi/block-core.json | 8
qapi/char.json | 8
qapi/cryptodev.json | 2 --
qapi/machine-t
Well, I tried. Maybe not very hard. Sorry!
Signed-off-by: John Snow
---
qapi/block-core.json | 6 +++---
qapi/block-export.json | 2 +-
qapi/block.json | 2 +-
qapi/control.json| 5 ++---
qapi/dump.json | 5 ++---
qapi/introspect.json | 6 +++---
qapi
This patch changes the qapidoc transmogrifier to generate Return value
documentation for any command that has a return value but hasn't
explicitly documented that return value.
Signed-off-by: John Snow
---
docs/sphinx/qapidoc.py | 14 --
scripts/qapi/parser.py
because Sphinx always expects both a type and a
description for the prior form and will format it accordingly. To have a
reasonable rendering when the body is missing, we need to use a
different info field list entirely.
Signed-off-by: John Snow
---
docs/devel/qapi-
v3: rebased on top of python-qapi-linting (v4) pull request;
removed commits that are no longer needed.
Markus: I forget where we left off... shall we refresh?
v2: fix multi-return-sections bug :(
John Snow (4):
docs/qapi-domain: add return-nodesc
docs, qapi: generate undocumented
ase
insensitive manner for all categories, now.
Lastly, the "main" QAPI Index (qapi-index.html) is altered to index
*everything* from all namespaces, adding disambiguation where necessary
to do so.
Signed-off-by: John Snow
---
docs/sphinx/qapi_domain.py | 51 +++--
RFC quality - what do we think about this style of index vs the one we
currently have?
John Snow (1):
docs/qapi-domain: Improve QAPI indices
docs/sphinx/qapi_domain.py | 51 +++---
1 file changed, 37 insertions(+), 14 deletions(-)
--
2.48.1
On Tue, May 20, 2025 at 9:38 AM Stefan Hajnoczi wrote:
> Applied, thanks.
>
> Please update the changelog at https://wiki.qemu.org/ChangeLog/10.1 for
> any user-visible changes.
>
Did these get dropped? I don't see them in origin/master.
--js
On Tue, May 20, 2025 at 5:31 AM Markus Armbruster wrote:
> John Snow writes:
>
> > In this patch, we don't have a builtin type to use for a type hint, but
> > we do have collections.abc and other standard library types. Replace
> > deprecated type hints with their
On Tue, May 20, 2025 at 5:26 AM Markus Armbruster wrote:
> John Snow writes:
>
> > This patch changes type hints that have built-in equivalents as of
> > Python 3.9. The versions we currently use, imported from the typing
> > module, have been deprecated since 3.9 and ma
On Tue, May 20, 2025 at 3:42 AM Markus Armbruster wrote:
> John Snow writes:
>
> > The next patch will synchronize the qemu.qmp library with the external,
> > standalone version. That synchronization will require a few extra
> > ignores for pylint, so do that now.
>
&
Thanks for your service!
Remove the old qapidoc and the option to enable the transmogrifier,
leaving the transmogrifier as the ONLY qapi doc generator. This has the
side effect of converting the tests to use the new system, too.
Signed-off-by: John Snow
---
docs/interop/qemu-ga-ref.rst
This series is RFC-ish and based on python-qapi-linting-v4, which I
think ... should show up in origin/master soon(?).
John Snow (3):
docs: fix errors formatting in test-good
docs: remove legacy QAPI manual generator
docs: remove special parsing for freeform sections
docs/devel/qapi-code
dvise!
Signed-off-by: John Snow
---
docs/devel/qapi-code-gen.rst | 28 ++---
docs/interop/firmware.json | 4 ++-
docs/interop/vhost-user.json | 4 ++-
docs/sphinx/qapidoc.py | 37 +---
qapi/acpi.json
ll want to.
Signed-off-by: John Snow
---
tests/qapi-schema/doc-good.json | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tests/qapi-schema/doc-good.json b/tests/qapi-schema/doc-good.json
index 14b808f9090..6dcde8fd7e8 100644
--- a/tests/qapi-schema/doc-good.json
+++ b/tests/q
On Wed, May 21, 2025 at 10:55:34PM +0100, John Levon wrote:
> Pass through the MemoryRegion to DMA operation handlers of vfio
> containers. The vfio-user container will need this later, to translate
> the vaddr into an offset for the dma map vfio-user message; CPR will
> also wi
Pass through the MemoryRegion to DMA operation handlers of vfio
containers. The vfio-user container will need this later, to translate
the vaddr into an offset for the dma map vfio-user message; CPR will
also will need this.
Originally-by: John Johnson
Signed-off-by: Jagannathan Raman
Signed
gt; so the "p" is understood.
Sure.
> This comment for @dma_map needs polishing for clarity:
>
> + * Map an address range into the container. Note that @mrp will within an
> + * RCU read lock region across this call.
Will fix
thanks
john
fio-user support migration ?
Not yet: we dropped support during the v2 changeover. Happy to drop the
save/load config in the meantime.
regards
john
On Wed, May 21, 2025 at 09:43:11AM +0200, Cédric Le Goater wrote:
> !---|
> CAUTION: External Email
>
> |---!
>
> +Steven,
>
> On 5/20/25
uses vbasedev fd instead. IMO "region->fd" is much
cleaner/clearer.
But, if you don't like that, yes, I can drop region->fd in favour of the above.
thanks
john
Add some additional doc comments for these class methods.
Signed-off-by: John Levon
---
include/hw/vfio/vfio-container-base.h | 75 +--
1 file changed, 72 insertions(+), 3 deletions(-)
diff --git a/include/hw/vfio/vfio-container-base.h
b/include/hw/vfio/vfio-container
If VFIO_IRQ_INFO_MASKABLE is set for VFIO_PCI_MSIX_IRQ_INDEX, record
this in ->can_mask_msix, and use it to individually mask MSI-X
interrupts as needed.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio/pc
Add some basic documentation on vfio-user usage.
Signed-off-by: John Levon
---
docs/system/device-emulation.rst | 1 +
docs/system/devices/vfio-user.rst | 24
2 files changed, 25 insertions(+)
create mode 100644 docs/system/devices/vfio-user.rst
diff --git a/docs
Add some additional doc comments for these class methods.
Signed-off-by: John Levon
---
include/hw/vfio/vfio-container-base.h | 64 ++-
1 file changed, 63 insertions(+), 1 deletion(-)
diff --git a/include/hw/vfio/vfio-container-base.h
b/include/hw/vfio/vfio-container
The user container will shortly need access to the underlying vfio-user
proxy; set this up.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user/container.h | 2 ++
hw/vfio-user/container.c | 43
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user/protocol.h | 12 +++
hw/vfio-user/device.c | 67 +++
hw/vfio-user/trace-events | 1 +
3 files changed, 80
Add support for getting basic device information.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user/device.h | 23 ++
hw/vfio-user/protocol.h | 12 ++
hw/vfio-user/proxy.h
Add new message to send multiple writes to server in a single message.
Prevents the outgoing queue from overflowing when a long latency
operation is followed by a series of posted writes.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by
Support an asynchronous send of a vfio-user socket message (no wait for
a reply) when the write is posted. This is only safe when no regions are
mappable by the VM. Add an option to explicitly disable this as well.
Signed-off-by: John Levon
---
hw/vfio-user/proxy.h | 5 +
hw/vfio-user
Pass through the MemoryRegion to DMA operation handlers of vfio
containers. The vfio-user container will need this later, to translate
the vaddr into an offset for the dma map vfio-user message.
Originally-by: John Johnson
Signed-off-by: Jagannathan Raman
Signed-off-by: Elena Ufimtseva
Signed
c.
Add hw/vfio-user/pci.c for instantiating VFIOUserPCIDevice objects,
sharing some common code from hw/vfio/pci.c.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
MAINTAINERS | 2 +
hw/v
By default, the vfio-user subsystem will wait 5 seconds for a message
reply from the server. Add an option to allow this to be configurable.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user/proxy.h | 1
IRQ setup uses the same semantics as the traditional vfio path, but we
need to share the corresponding file descriptors with the server as
necessary.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user
discussed as an RFC in:
"RFC: use VFIO over a UNIX domain socket to implement device offloading"
Signed-off-by: Thanos Makatos
Signed-off-by: John Levon
---
MAINTAINERS|8 +-
docs/devel/index-internals.rst |1 +
docs/devel/vfio-user.rst
For vfio-user, the server holds the pending IRQ state; set up an I/O
region for the MSI-X PBA so we can ask the server for this state on a
PBA read.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio/pci.h
Add plumbing for sending vfio-user messages on the control socket.
Add initial version negotation on connection.
Originally-by: John Johnson
Signed-off-by: Jagannathan Raman
Signed-off-by: Elena Ufimtseva
Signed-off-by: John Levon
---
hw/vfio-user/protocol.h | 62 +
hw/vfio-user
Add support for getting region info for vfio-user. As vfio-user has one
fd per region, enable ->use_region_fds.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user/device.h | 2 ++
hw/vfio-user/protoco
Small cleanup that reduces duplicate code for vfio-user and reduces the
size of vfio_realize(); while we're here, correct that name to
vfio_pci_realize().
Signed-off-by: John Levon
Reviewed-by: Cédric Le Goater
---
hw/vfio/pci.c | 31 ---
1 file change
rPCIDevice instance.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user/proxy.h | 82 +
include/hw/vfio/vfio-device.h | 2 +
hw/vfio-user/pci.c| 17
hw/vfio-us
Unlike most other messages, this is a server->client message, for when a
server wants to do "DMA"; this is slow, so normally the server has
memory directly mapped instead.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-b
st do basic testing (although no DMA).
>
> Can't we update the asset and use newer images ? It's also possible
> to use a custom build, buildroot images for instance.
Mark is going to help me out with this, stay tuned.
In the meantime I sent out a v2 of the series, as there's a couple of additional
generic vfio patches you might want to review.
thanks
john
Re-use PCI setup functions from hw/vfio/pci.c to realize the vfio-user
PCI device.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user/pci.c | 28
1 file changed, 28 insertions
Add the basic implementation for receiving vfio-user messages from the
control socket.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
meson.build | 1 +
hw/vfio-user/protocol.h | 56 ++
hw/vfio
This makes for a slightly more readable vfio_msix_vector_do_use()
implementation, and we will rely on this shortly.
Signed-off-by: John Levon
Reviewed-by: Cédric Le Goater
---
hw/vfio/pci.c | 35 ---
1 file changed, 20 insertions(+), 15 deletions(-)
diff --git
For vfio-user, the region write implementation needs to know if the
write is posted; add the necessary plumbing to support this.
Signed-off-by: John Levon
---
include/hw/vfio/vfio-device.h | 4 ++--
include/hw/vfio/vfio-region.h | 1 +
hw/vfio/device.c | 3 ++-
hw/vfio/pci.c
- separated out vfio pci exports and renamed to vfio_pci namespace
John Levon (27):
vfio: add more VFIOIOMMUClass docs
vfio: move more cleanup into vfio_pci_put_device()
vfio: move config space read into vfio_pci_config_setup()
vfio: refactor out IRQ signalling setup
vfio: export PCI helpers
From: Steve Sistare
Modify memory_get_xlat_addr and vfio_get_xlat_addr to return the memory
region that the translated address is found in. This will be needed by
CPR in a subsequent patch to map blocks using IOMMU_IOAS_MAP_FILE.
Also return the xlat offset, so we can simplify the interface by
From: John Levon
When the vfio-user container gets mapping updates, share them with the
vfio-user by sending a message; this can include the region fd, allowing
the server to directly mmap() the region as needed.
For performance, we only wait for the message responses when we're doing
w
Hook this call up to the legacy reset handler for vfio-user-pci.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user/device.h | 2 ++
hw/vfio-user/device.c | 12
hw/vfio-user/pci.c| 15
For vfio-user, each region has its own fd rather than sharing
vbasedev's. Add the necessary plumbing to support this. For vfio
backends with a shared fd, initialize region->fd to the shared one.
Signed-off-by: John Levon
---
include/hw/vfio/vfio-device.h | 7 +--
include/hw/v
All of the cleanup can be done in the same place, and vfio-user will
want to do the same.
Signed-off-by: John Levon
Reviewed-by: Cédric Le Goater
---
hw/vfio/pci.c | 23 ---
1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index
The vfio-user code will need to re-use various parts of the vfio PCI
code. Export them in hw/vfio/pci.h, and rename them to the vfio_pci_*
namespace.
Signed-off-by: John Levon
---
hw/vfio/pci.h| 14
hw/vfio/pci.c| 54 ++--
hw
nd will be dropped from a Python
release in the future, so I am just getting ahead of it before it causes
a problem.
(Granted, yes, in practice this just means we're usually importing from
collections.abc instead of typing, but... ah well. What are you gonna
do.)
We don't need these requirements anymore, so remove them.
Signed-off-by: John Snow
---
python/setup.cfg | 1 -
1 file changed, 1 deletion(-)
diff --git a/python/setup.cfg b/python/setup.cfg
index 02cc076eaea..1afdcf1c3cd 100644
--- a/python/setup.cfg
+++ b/python/setup.cfg
@@ -41,7
.
Signed-off-by: John Snow
---
python/setup.cfg | 1 -
1 file changed, 1 deletion(-)
diff --git a/python/setup.cfg b/python/setup.cfg
index 1afdcf1c3cd..7d50909b4ec 100644
--- a/python/setup.cfg
+++ b/python/setup.cfg
@@ -77,7 +77,6 @@ exclude = __pycache__,
[mypy]
strict = True
-python_version
for now, it is.
NB: A few changes are not synchronized; mostly license and documentation
strings. Everything functional is fully copied verbatim. The license
strings are not sync'd only because they point to different LICENSE
filenames for the different repositories.
Signed-off-by: John
-ci' | xargs sed -i -e 's/Type\[/type\[/g'
I then used "git add -p" and excluded changes by hand that weren't
appropriate. I then reviewed all of the changed files by hand to review
the imports and update them accordingly.
Signed-off-by: John Snow
---
docs/sphinx/c
import logic in mkvenv.py to make it type
check under a wider range of python versions.
Signed-off-by: John Snow
---
python/scripts/mkvenv.py | 15 +--
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/python/scripts/mkvenv.py b/python/scripts/mkvenv.py
index b626903fa8d
that change as a result of the
different build/packaging/installation pathways.
This change has the effect of fixing "make check-dev", which has been
broken on newer versions of Fedora for a while, now.
Signed-off-by: John Snow
---
python/README.rst| 33 --
The next patch will synchronize the qemu.qmp library with the external,
standalone version. That synchronization will require a few extra
ignores for pylint, so do that now.
Signed-off-by: John Snow
---
python/setup.cfg | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a
D) Update the mypy configuration to check under multiple Python versions
more effectively and thoroughly.
Whew.
--js
John Snow (8):
python: convert packages to PEP517/pyproject.toml
python: update pylint ignores
python: sync changes from external qemu.qmp package
python: use 3.9+ b
On Thu, May 15, 2025 at 4:38 AM Markus Armbruster wrote:
> John Snow writes:
>
> > Hiya, this series turns on automated linting for scripts/qapi,
> > docs/sphinx/qapidoc.py and docs/sphinx/qapi_domain.py.
> >
> > This includes flake8/isort/pylint/mypy for scripts
gt;
> Bump sphinx to 6.2.1 and also sphinx_rtd_theme as required for the new
> sphinx version.
>
> Signed-off-by: Akihiko Odaki
>
Reviewed-by: John Snow
I figure if this causes issues, this early in the development cycle we can
roll it back or pursue alternate solutions if nece
From: Markus Armbruster
strict = True implies warn_unused_configs = True.
Signed-off-by: Markus Armbruster
Signed-off-by: John Snow
Reviewed-by: Markus Armbruster
Message-id: 20250512193357.3388514-6-js...@redhat.com
Signed-off-by: John Snow
---
python/setup.cfg | 1 -
1 file changed, 1
hon static analysis checks
John Snow (5):
qapi: Add some pylint ignores
docs/qapidoc: linting fixes
python: update missing dependencies from minreqs
python: add qapi static analysis tests
qapi: delete un-needed python static analys
le by accident; as a result, pip's dependency solver can pull in newer
dependencies, which we don't want. This patch corrects the previous
oversight and pins the missing dependencies.
Signed-off-by: John Snow
Reviewed-by: Markus Armbruster
Message-id: 20250512193357.3388514-4-js...@redha
the python/ directory settings that we need a chit-chat on
how to merge them O:-)
Signed-off-by: John Snow
Reviewed-by: Markus Armbruster
Message-id: 20250512193357.3388514-7-js...@redhat.com
Signed-off-by: John Snow
---
scripts/qapi/.flake8| 3 ---
scripts/qapi/.isort.cfg | 7
This restores the linting baseline in QAPI.
Signed-off-by: John Snow
Reviewed-by: Markus Armbruster
Message-id: 20250512193357.3388514-2-js...@redhat.com
Signed-off-by: John Snow
---
scripts/qapi/backend.py | 2 ++
1 file changed, 2 insertions(+)
diff --git a/scripts/qapi/backend.py b
that QAPI tooling will be linted
and type-checked from the GitLab pipelines.
Signed-off-by: John Snow
Reviewed-by: Markus Armbruster
Message-id: 20250512193357.3388514-5-js...@redhat.com
Signed-off-by: John Snow
---
python/setup.cfg| 1 +
python/tests/minreqs.txt| 21
ot;isn't a python
package". Configuring this manually, isort chooses a different import
ordering, which _is_ intentional here.
Also: extra ignores are added for pylint. The most recent versions of
pylint don't require these ignores, but the oldest versions we support
do, so in the extra ignores
can be trivially derived from mr and xlat.
>
> Lastly, rename the functions to to memory_translate_iotlb() and
> vfio_translate_iotlb().
>
> Signed-off-by: Steve Sistare
> Acked-by: David Hildenbrand
Reviewed-by: John Levon
regards
john
.fc31.x86_64
If somebody can help with how to get a suitable test initrd with this module
available, we could at least do basic testing (although no DMA).
regards
john
diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h
index 7a03d24805..80599454d4 100644
--- a/hw/vfio/pci.h
+++ b/hw/vfio/pci.h
@@ -1
ll send a separate patch for those (and also add a dma_map
comment).
regards
john
For vfio-user, the server holds the pending IRQ state; set up an I/O
region for the MSI-X PBA so we can ask the server for this state on a
PBA read.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio/pci.h
rPCIDevice instance.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user/proxy.h | 82 +
include/hw/vfio/vfio-device.h | 2 +
hw/vfio-user/pci.c| 17
hw/vfio-us
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user/protocol.h | 12 +++
hw/vfio-user/device.c | 67 +++
hw/vfio-user/trace-events | 1 +
3 files changed, 80
IRQ setup uses the same semantics as the traditional vfio path, but we
need to share the corresponding file descriptors with the server as
necessary.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user
If VFIO_IRQ_INFO_MASKABLE is set for VFIO_PCI_MSIX_IRQ_INDEX, record
this in ->can_mask_msix, and use it to individually mask MSI-X
interrupts as needed.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio/pc
This makes for a slightly more readable vfio_msix_vector_do_use()
implementation, and we will rely on this shortly.
Signed-off-by: John Levon
---
hw/vfio/pci.c | 35 ---
1 file changed, 20 insertions(+), 15 deletions(-)
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
Add the basic implementation for receiving vfio-user messages from the
control socket.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
meson.build | 1 +
hw/vfio-user/protocol.h | 56 ++
hw/vfio
discussed as an RFC in:
"RFC: use VFIO over a UNIX domain socket to implement device offloading"
Signed-off-by: Thanos Makatos
Signed-off-by: John Levon
---
MAINTAINERS|8 +-
docs/devel/index-internals.rst |1 +
docs/devel/vfio-user.rst
Small cleanup that reduces duplicate code for vfio-user.
Signed-off-by: John Levon
---
hw/vfio/pci.c | 27 ++-
1 file changed, 14 insertions(+), 13 deletions(-)
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index d96b55f80c..7912c17dd2 100644
--- a/hw/vfio/pci.c
+++ b/hw
By default, the vfio-user subsystem will wait 5 seconds for a message
reply from the server. Add an option to allow this to be configurable.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user/proxy.h | 1
Add support for getting basic device information.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user/device.h | 23 ++
hw/vfio-user/protocol.h | 12 ++
hw/vfio-user/proxy.h
Unlike most other messages, this is a server->client message, for when a
server wants to do "DMA"; this is slow, so normally the server has
memory directly mapped instead.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-b
All of the cleanup can be done in the same place, and vfio-user will
want to do the same.
Signed-off-by: John Levon
---
hw/vfio/pci.c | 23 ---
1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index a1bfdfe375..d96b55f80c 100644
c.
Add hw/vfio-user/pci.c for instantiating VFIOUserPCIDevice objects,
sharing some common code from hw/vfio/pci.c.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
MAINTAINERS | 2 +
hw/v
Add some basic documentation on vfio-user usage.
Signed-off-by: John Levon
---
docs/system/device-emulation.rst | 1 +
docs/system/devices/vfio-user.rst | 24
2 files changed, 25 insertions(+)
create mode 100644 docs/system/devices/vfio-user.rst
diff --git a/docs
On Thu, May 15, 2025 at 04:43:46PM +0100, John Levon wrote:
> From: Steve Sistare
>
> Modify memory_get_xlat_addr and vfio_get_xlat_addr to return the memory
> region that the translated address is found in. This will be needed by
> CPR in a subsequent patch to m
The user container will shortly need access to the underlying vfio-user
proxy; set this up.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio-user/container.h | 2 ++
hw/vfio-user/container.c | 43
Support an asynchronous send of a vfio-user socket message (no wait for
a reply) when the write is posted. This is only safe when no regions are
mappable by the VM. Add an option to explicitly disable this as well.
Signed-off-by: John Levon
---
hw/vfio-user/proxy.h | 5 +
hw/vfio-user
From: John Levon
When the vfio-user container gets mapping updates, share them with the
vfio-user by sending a message; this can include the region fd, allowing
the server to directly mmap() the region as needed.
For performance, we only wait for the message responses when we're doing
w
Add new message to send multiple writes to server in a single message.
Prevents the outgoing queue from overflowing when a long latency
operation is followed by a series of posted writes.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by
From: Steve Sistare
Modify memory_get_xlat_addr and vfio_get_xlat_addr to return the memory
region that the translated address is found in. This will be needed by
CPR in a subsequent patch to map blocks using IOMMU_IOAS_MAP_FILE.
Also return the xlat offset, so we can simplify the interface by
Re-use PCI setup functions from hw/vfio/pci.c to realize the vfio-user
PCI device.
Originally-by: John Johnson
Signed-off-by: Elena Ufimtseva
Signed-off-by: Jagannathan Raman
Signed-off-by: John Levon
---
hw/vfio/pci.h | 8
hw/vfio-user/pci.c | 28
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