Add a new function with an affected mask. This will allow
folding to a constant to happen before folding to a copy,
without having to mind the ordering in all users.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Add o_mask mirroring z_mask, but for 1's instead of 0's.
Drop is_const and val fields, which now logically overlap.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use arg_const_val instead of direct access to the TempOptInfo val
member. Rename both val and is_const to catch all direct accesses.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* Fix memory leak in loadparm setter on s390x
* Update OpenBSD image to 7.7
* Replace the invalid address of the Free Software Foundation
* Some updates to the MAINTAINERS file
-----BEGIN PGP SIGNATURE-----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=nm/1
-----END PGP SIGNATURE-----
Merge tag 'pull-request-2025-06-26' of https://gitlab.com/thuth/qemu into staging
* Implement the "Control Program Identification" feature on s390x
* Fix memory leak in loadparm setter on s390x
* Update OpenBSD image to 7.7
* Replace the invalid address of the Free Software Foundation
* Some updates to the MAINTAINERS file
# -----BEGIN PGP SIGNATURE-----
#
# iQJFBAABCAAvFiEEJ7iIR+7gJQEY8+q5LtnXdP5wLbUFAmhc3vURHHRodXRoQHJl
# ZGhhdC5jb20ACgkQLtnXdP5wLbWqfg/+KKMEWjE0PLwVNnHRsoQhtbaJNIfHvejo
# pchQLCIhMsakBUX/00xFNnKfxIMOMY06tMvRkg6/lYjEFs1JWSxZZF1DhElgYNDJ
# hOCYV94bW2Xd/xe3QXfJAlf1f2lvAocBe8F1fh7N6mTD0YExXlusvm5ROfEUChlO
# Qt+CkYlKwy2ag8j1tXdfEy9I8Hs71I3DYFUFKLf8Dq7mbsygST2nn40fNAWT8i/H
# u7K7Fna3ybtsz9tkb8HpkGYraIxU7TI9NE+5hd9U5sniduvTNt+9573V29lOOe3o
# ym164pzsVuks2m2jDRdWmBXjk5/aheU7SUTGJgY9uRapBBulDK+bJb02dRfrMNB7
# mYt/bbXkidLQ5e/N4K8xqHjS6rx4cm5T2porf8HzMmPbLzo6TsXWWdGip2qBWd78
# XIXdXeu7AZzKDfbeL58RCuiMJzQOlPquN7OgFERZ3DSvd+gLoRoSrowH7YHdjJl3
# N9ymL7QUgsqfWySwv/0gtbwXsjjev0z7XyJIjG80o1CQhV25hoo78mKm2Q1pBz+k
# aoWKkAlzrLPyjCezA6sWUNxh7DJ9UtN30z4B51sr95PxcLYjJAqOe0ZD+4FZySgH
# 0g0rLs7uZ1hw/LTr/sAQZUfniEiTf8MDXcNNUKd+oeYHAHXat25jWKXu+NObs6rn
# vow7/0ZzV6I=
# =nm/1
# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 26 Jun 2025 01:47:33 EDT
# gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5
* tag 'pull-request-2025-06-26' of https://gitlab.com/thuth/qemu:
target/i386/emulate: replace FSF postal address with licenses URL
target/xtensa: replace FSF postal address with licenses URL
contrib: replace FSF postal address with licenses URL
scripts: replace FSF postal address with licenses URL
hw: replace FSF postal address with licenses URL
util/rcu.c: replace FSF postal address with licenses URL
include/qemu: replace FSF postal address with licenses URL
include/hw: replace FSF postal address with licenses URL
include/libdecnumber: replace FSF postal address with licenses URL
libdecnumber: replace FSF postal address with licenses URL
COPYING: replace FSF postal address with licenses URL
tests/vm: update openbsd image to 7.7
hw/s390x/ccw-device: Fix memory leak in loadparm setter
MAINTAINERS: add reviewers for some s390 areas
hw/s390x: support migration of CPI data
hw/s390x: add Control-Program Identification to QOM
hw/s390x: add SCLP event type CPI
MAINTAINERS: Yoshinori Sato email address has been updated
tests/functional/test_pc_cpu_hotplug_props: Set 'pc' machine type explicitly
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This patch introduces the vfio-user protocol specification (formerly
known as VFIO-over-socket), which is designed to allow devices to be
emulated outside QEMU, in a separate process. vfio-user reuses the
existing VFIO defines, structs and concepts.
It has been earlier discussed as an RFC in:
"RFC: use VFIO over a UNIX domain socket to implement device offloading"
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-20-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
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 <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-18-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
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 <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-17-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
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 <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-16-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
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 <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-15-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
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
with a series of updates via the listener_commit() callback.
Originally-by: John Johnson <john.g.johnson@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-14-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Hook this call up to the legacy reset handler for vfio-user-pci.
Originally-by: John Johnson <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-13-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
The user container will shortly need access to the underlying vfio-user
proxy; set this up.
Originally-by: John Johnson <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-12-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
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 <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-11-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
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 <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-10-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Re-use PCI setup functions from hw/vfio/pci.c to realize the vfio-user
PCI device.
Originally-by: John Johnson <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-9-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Originally-by: John Johnson <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-8-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
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 <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-7-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Add support for getting basic device information.
Originally-by: John Johnson <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-6-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Add plumbing for sending vfio-user messages on the control socket.
Add initial version negotation on connection.
Originally-by: John Johnson <john.g.johnson@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-5-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Add the basic implementation for receiving vfio-user messages from the
control socket.
Originally-by: John Johnson <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-4-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Introduce the vfio-user "proxy": this is the client code responsible for
sending and receiving vfio-user messages across the control socket.
The new files hw/vfio-user/proxy.[ch] contain some basic plumbing for
managing the proxy; initialize the proxy during realization of the
VFIOUserPCIDevice instance.
Originally-by: John Johnson <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-3-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Introduce basic plumbing for vfio-user with CONFIG_VFIO_USER.
We introduce VFIOUserContainer in hw/vfio-user/container.c, which is a
container type for the "IOMMU" type "vfio-iommu-user", and share some
common container code from hw/vfio/container.c.
Add hw/vfio-user/pci.c for instantiating VFIOUserPCIDevice objects,
sharing some common code from hw/vfio/pci.c.
Originally-by: John Johnson <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250625193012.2316242-2-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
It's aggressive to abort a running QEMU process when hotplug a mdev
and it fails migration blocker adding.
Fix by just failing mdev hotplug itself.
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250623102235.94877-3-zhenzhong.duan@intel.com
[ clg: Changed test on value returned by migrate_add_blocker_modes() ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This keeps the existence of ->region_fds private to hw/vfio/device.c.
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Link: https://lore.kernel.org/qemu-devel/20250616101337.3190027-1-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Created an attribute constructor for cfg_chg_events_lock for locking
mechanism when storing event information for an AP configuration change
event
Fixes: fd03360215 ("Storing event information for an AP configuration change event")
Signed-off-by: Rorie Reyes <rreyes@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250611211252.82107-1-rreyes@linux.ibm.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Some of the LGPLv2.1 boiler-plate still contained the
obsolete "51 Franklin Street" postal address.
Replace it with the canonical GNU licenses URL recommended by the FSF:
https://www.gnu.org/licenses/
Signed-off-by: Sean Wei <me@sean.taipei>
Reviewed-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20250613.qemu.patch.12@sean.taipei>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Some of the GPLv2 boiler-plate still contained the
obsolete "51 Franklin Street" postal address.
Replace it with the canonical GNU licenses URL recommended by the FSF:
https://www.gnu.org/licenses/
Signed-off-by: Sean Wei <me@sean.taipei>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Message-ID: <20250613.qemu.patch.11@sean.taipei>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The LGPLv2.1 boiler-plate in pdb.c file still contained
the obsolete "51 Franklin Street" postal address.
Replace it with the canonical GNU licenses URL recommended by the FSF:
https://www.gnu.org/licenses/
Signed-off-by: Sean Wei <me@sean.taipei>
Reviewed-by: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Message-ID: <20250613.qemu.patch.10@sean.taipei>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The GPLv2 boiler-plate in scripts/device-crash-test still
contained the obsolete "51 Franklin Street" postal address.
Replace it with the canonical GNU licenses URL recommended by the FSF:
https://www.gnu.org/licenses/
Signed-off-by: Sean Wei <me@sean.taipei>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250613.qemu.patch.09@sean.taipei>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The GPLv2 boiler-plate in vmxnet3.h and vmw_pvscsi.h still
contained the obsolete "51 Franklin Street" postal address.
Replace it with the canonical GNU licenses URL recommended by the FSF:
https://www.gnu.org/licenses/
Signed-off-by: Sean Wei <me@sean.taipei>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250613.qemu.patch.08@sean.taipei>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The LGPLv2.1 boiler-plate in util/rcu.c still contained
the obsolete "51 Franklin Street" postal address.
Replace it with the canonical GNU licenses URL recommended by the FSF:
https://www.gnu.org/licenses/
Signed-off-by: Sean Wei <me@sean.taipei>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250613.qemu.patch.07@sean.taipei>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The LGPLv2.1 boiler-plate in rcu.h and rcu_queue.h still
contained the obsolete "51 Franklin Street" postal address.
Replace it with the canonical GNU licenses URL recommended by the FSF:
https://www.gnu.org/licenses/
Signed-off-by: Sean Wei <me@sean.taipei>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250613.qemu.patch.06@sean.taipei>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Some of the GPLv2 boiler-plate still contained the
obsolete "51 Franklin Street" postal address.
Replace it with the canonical GNU licenses URL recommended by the FSF:
https://www.gnu.org/licenses/
Signed-off-by: Sean Wei <me@sean.taipei>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-ID: <20250613.qemu.patch.05@sean.taipei>
Signed-off-by: Thomas Huth <thuth@redhat.com>
