Commit Graph

758 Commits

Author SHA1 Message Date
Zhao Liu
eb92e6e3e7 hw/vfio/container: Get rid of qemu_open_old()
For qemu_open_old(), osdep.h said:

> Don't introduce new usage of this function, prefer the following
> qemu_open/qemu_create that take an "Error **errp".

So replace qemu_open_old() with qemu_open().

Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: "Cédric Le Goater" <clg@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-07-17 14:04:15 +03:00
Zhenzhong Duan
83d9019202 vfio/display: Fix vfio_display_edid_init() error path
vfio_display_edid_init() can fail for many reasons and return silently.
It would be good to report the error.

Old mdev driver may not support vfio edid region and we allow to go
through in this case.

vfio_display_edid_update() isn't changed because it can be called at
runtime when UI changes (i.e. window resize).

Fixes: 08479114b0 ("vfio/display: add edid support.")
Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2024-07-09 11:50:37 +02:00
Zhenzhong Duan
f15da599a1 vfio/display: Fix potential memleak of edid info
EDID related device region info is leaked in vfio_display_edid_init()
error path and VFIODisplay destroying path.

Fixes: 08479114b0 ("vfio/display: add edid support.")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2024-07-09 11:50:37 +02:00
Eric Auger
2457343d05 memory: remove IOMMU MR iommu_set_page_size_mask() callback
Everything is now in place to use the Host IOMMU Device callbacks
to retrieve the page size mask usable with a given assigned device.
This new method brings the advantage to pass the info much earlier
to the virtual IOMMU and before the IOMMU MR gets enabled. So let's
remove the call to memory_region_iommu_set_page_size_mask in
vfio common.c and remove the single implementation of the IOMMU MR
callback in the virtio-iommu.c

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-09 11:50:37 +02:00
Eric Auger
8fe0ebe15d HostIOMMUDevice: Introduce get_page_size_mask() callback
This callback will be used to retrieve the page size mask supported
along a given Host IOMMU device.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-09 11:50:37 +02:00
Eric Auger
d59ca1ca17 HostIOMMUDevice : remove Error handle from get_iova_ranges callback
The error handle argument is not used anywhere. let's remove it.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-09 11:50:37 +02:00
Eric Auger
3966bca539 vfio-container-base: Introduce vfio_container_get_iova_ranges() helper
Introduce vfio_container_get_iova_ranges() to retrieve the usable
IOVA regions of the base container and use it in the Host IOMMU
device implementations of get_iova_ranges() callback.

We also fix a UAF bug as the list was shallow copied while
g_list_free_full() was used both on the single call site, in
virtio_iommu_set_iommu_device() but also in
vfio_container_instance_finalize(). Instead use g_list_copy_deep.

Fixes: cf2647a76e ("virtio-iommu: Compute host reserved regions")
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Suggested-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-09 11:50:37 +02:00
Thomas Huth
f0936cbc1d Remove inclusion of hw/hw.h from files that don't need it
hw/hw.h only contains the prototype of hw_error() nowadays, so
files that don't use this function don't need to include this
header.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20240701132649.58345-1-thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-07-02 06:58:48 +02:00
Cédric Le Goater
96b7af4388 vfio/container: Move vfio_container_destroy() to an instance_finalize() handler
vfio_container_destroy() clears the resources allocated
VFIOContainerBase object. Now that VFIOContainerBase is a QOM object,
add an instance_finalize() handler to do the cleanup. It will be
called through object_unref().

Suggested-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Cédric Le Goater
b052f73cbe vfio/container: Introduce vfio_iommu_legacy_instance_init()
Just as we did for the VFIOContainerBase object, introduce an
instance_init() handler for the legacy VFIOContainer object and do the
specific initialization there.

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Cédric Le Goater
2f7243cb8a vfio/container: Remove vfio_container_init()
It's now empty.

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Cédric Le Goater
41d698b8d6 vfio/container: Remove VFIOContainerBase::ops
Instead, use VFIO_IOMMU_GET_CLASS() to get the class pointer.

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Cédric Le Goater
2137d2fd17 vfio/container: Introduce an instance_init() handler
This allows us to move the initialization code from vfio_container_init(),
which we will soon remove.

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Cédric Le Goater
938026053f vfio/container: Switch to QOM
Instead of allocating the container struct, create a QOM object of the
appropriate type.

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Cédric Le Goater
504d297e10 vfio/container: Change VFIOContainerBase to use QOM
VFIOContainerBase was made a QOM interface because we believed that a
QOM object would expose all the IOMMU backends to the QEMU machine and
human interface. This only applies to user creatable devices or objects.

Change the VFIOContainerBase nature from interface to object and make
the necessary adjustments in the VFIO_IOMMU hierarchy.

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Cédric Le Goater
9550fdfd29 vfio/container: Discover IOMMU type before creating the container
Since the QEMU struct type representing the VFIO container is deduced
from the IOMMU type exposed by the host, this type should be well
defined *before* creating the container struct. This will be necessary
to instantiate a QOM object of the correct type in future changes.

Rework vfio_set_iommu() to extract the part doing the container
initialization and move it under vfio_create_container().

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Cédric Le Goater
58f5c13260 vfio/container: Introduce vfio_create_container()
This routine allocates the QEMU struct type representing the VFIO
container. It is minimal currently and future changes will do more
initialization.

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Cédric Le Goater
17401879c4 vfio/container: Introduce vfio_get_iommu_class_name()
Rework vfio_get_iommu_class() to return a literal class name instead
of a class object. We will need this name to instantiate the object
later on. Since the default case asserts, remove the error report as
QEMU will simply abort before.

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Cédric Le Goater
55974f35ea vfio/container: Modify vfio_get_iommu_type() to use a container fd
The 'container' pointer has no other use than its 'fd' attribute.
Simplify the prototype to ease future changes.

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Cédric Le Goater
09181a8e97 vfio/container: Simplify vfio_container_init()
Assign the base container VFIOAddressSpace 'space' pointer in
vfio_address_space_insert(). The ultimate goal is to remove
vfio_container_init() and instead rely on an .instance_init() handler
to perfom the initialization of VFIOContainerBase.

To be noted that vfio_connect_container() will assign the 'space'
pointer later in the execution flow. This should not have any
consequence.

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Cédric Le Goater
b7b79588eb vfio/container: Introduce vfio_address_space_insert()
It prepares ground for a future change initializing the 'space' pointer
of VFIOContainerBase. The goal is to replace vfio_container_init() by
an .instance_init() handler when VFIOContainerBase is QOMified.

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Avihai Horon
723f702b89 vfio/common: Extract vIOMMU code from vfio_sync_dirty_bitmap()
Extract vIOMMU code from vfio_sync_dirty_bitmap() to a new function and
restructure the code.

This is done in preparation for optimizing vIOMMU device dirty page
tracking. No functional changes intended.

Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
[ clg: - Rebased on upstream
       - Fixed typo in commit log ]
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Joao Martins
344e70945d vfio/common: Move dirty tracking ranges update to helper
Separate the changes that update the ranges from the listener, to
make it reusable in preparation to expand its use to vIOMMU support.

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
[ clg: - Rebased on upstream
       - Introduced vfio_dirty_tracking_update_range()
       - Fixed typ in commit log ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Cédric Le Goater
332b9b0da4 vfio: Make vfio_devices_dma_logging_start() return bool
Since vfio_devices_dma_logging_start() takes an 'Error **' argument,
best practices suggest to return a bool. See the api/error.h Rules
section. It will simplify potential changes coming after.

vfio_container_set_dirty_page_tracking() could be modified in the same
way but the errno value can be saved in the migration stream when
called from vfio_listener_log_global_stop().

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-06-24 23:15:31 +02:00
Eric Auger
44079a9839 hw/vfio: Remove memory_region_iommu_set_iova_ranges() call
As we have just removed the only implementation of
iommu_set_iova_ranges IOMMU MR callback in the virtio-iommu,
let's remove the call to the memory wrapper. Usable IOVA ranges
are now conveyed through the PCIIOMMUOps in VFIO-PCI.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-06-24 23:15:31 +02:00
Eric Auger
3ad35d9158 HostIOMMUDevice: Introduce get_iova_ranges callback
Introduce a new HostIOMMUDevice callback that allows to
retrieve the usable IOVA ranges.

Implement this callback in the legacy VFIO and IOMMUFD VFIO
host iommu devices. This relies on the VFIODevice agent's
base container iova_ranges resource.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-06-24 23:15:30 +02:00
Eric Auger
dc169694ca HostIOMMUDevice: Store the VFIO/VDPA agent
Store the agent device (VFIO or VDPA) in the host IOMMU device.
This will allow easy access to some of its resources.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-06-24 23:15:30 +02:00
Zhenzhong Duan
ee26474daa vfio/pci: Pass HostIOMMUDevice to vIOMMU
With HostIOMMUDevice passed, vIOMMU can check compatibility with host
IOMMU, call into IOMMUFD specific methods, etc.

Originally-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-06-24 23:15:30 +02:00
Zhenzhong Duan
a7fd91b876 vfio: Create host IOMMU device instance
Create host IOMMU device instance in vfio_attach_device() and call
.realize() to initialize it further.

Introuduce attribute VFIOIOMMUClass::hiod_typename and initialize
it based on VFIO backend type. It will facilitate HostIOMMUDevice
creation in vfio_attach_device().

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-06-24 23:15:30 +02:00
Zhenzhong Duan
ed92ed2d48 vfio/container: Implement HostIOMMUDeviceClass::get_cap() handler
Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-06-24 23:15:30 +02:00
Zhenzhong Duan
9305895201 vfio/iommufd: Implement HostIOMMUDeviceClass::realize() handler
It calls iommufd_backend_get_device_info() to get host IOMMU
related information and translate it into HostIOMMUDeviceCaps
for query with .get_cap().

For aw_bits, use the same way as legacy backend by calling
vfio_device_get_aw_bits() which is common for different vendor
IOMMU.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-06-24 23:15:30 +02:00
Zhenzhong Duan
d441e05e26 vfio/container: Implement HostIOMMUDeviceClass::realize() handler
The realize function populates the capabilities. For now only the
aw_bits caps is computed for legacy backend.

Introduce a helper function vfio_device_get_aw_bits() which calls
range_get_last_bit() to get host aw_bits and package it in
HostIOMMUDeviceCaps for query with .get_cap(). This helper will
also be used by iommufd backend.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-06-24 23:15:30 +02:00
Zhenzhong Duan
9005f92844 backends/iommufd: Introduce TYPE_HOST_IOMMU_DEVICE_IOMMUFD[_VFIO] devices
TYPE_HOST_IOMMU_DEVICE_IOMMUFD represents a host IOMMU device under
iommufd backend. It is abstract, because it is going to be derived
into VFIO or VDPA type'd device.

It will have its own .get_cap() implementation.

TYPE_HOST_IOMMU_DEVICE_IOMMUFD_VFIO is a sub-class of
TYPE_HOST_IOMMU_DEVICE_IOMMUFD, represents a VFIO type'd host IOMMU
device under iommufd backend. It will be created during VFIO device
attaching and passed to vIOMMU.

It will have its own .realize() implementation.

Opportunistically, add missed header to include/sysemu/iommufd.h.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-06-24 23:15:30 +02:00
Zhenzhong Duan
0533739ece vfio/container: Introduce TYPE_HOST_IOMMU_DEVICE_LEGACY_VFIO device
TYPE_HOST_IOMMU_DEVICE_LEGACY_VFIO represents a host IOMMU device under
VFIO legacy container backend.

It will have its own realize implementation.

Suggested-by: Eric Auger <eric.auger@redhat.com>
Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2024-06-24 23:15:30 +02:00
Cédric Le Goater
d48a54042f vfio/{ap, ccw}: Use warn_report_err() for IRQ notifier registration errors
vfio_ccw_register_irq_notifier() and vfio_ap_register_irq_notifier()
errors are currently reported using error_report_err(). Since they are
not considered as failing conditions, using warn_report_err() is more
appropriate.

Signed-off-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Anthony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240522170107.289532-8-clg@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-06-24 08:03:34 +02:00
Zhenzhong Duan
fa8053841e vfio/ccw: Fix the missed unrealize() call in error path
When get name failed, we should call unrealize() so that
vfio_ccw_realize() is self contained.

Fixes: 909a6254ed ("vfio/ccw: Make vfio cdev pre-openable by passing a file handle")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240522170107.289532-7-clg@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-06-24 08:03:34 +02:00
Cédric Le Goater
1aeebbd621 vfio/ccw: Use the 'Error **errp' argument of vfio_ccw_realize()
The local error variable is kept for vfio_ccw_register_irq_notifier()
because it is not considered as a failing condition. We will change
how error reporting is done in following changes.

Remove the error_propagate() call.

Cc: Zhenzhong Duan <zhenzhong.duan@intel.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Anthony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240522170107.289532-6-clg@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-06-24 08:03:34 +02:00
Cédric Le Goater
45f4218784 s390x/css: Make S390CCWDeviceClass::realize return bool
Since the realize() handler of S390CCWDeviceClass takes an 'Error **'
argument, best practices suggest to return a bool. See the api/error.h
Rules section. While at it, modify the call in vfio_ccw_realize().

Signed-off-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Anthony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240522170107.289532-5-clg@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-06-24 08:03:33 +02:00
Philippe Mathieu-Daudé
956f63f878 hw/vfio: Remove newline character in trace events
Trace events aren't designed to be multi-lines.
Remove the newline characters.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Mads Ynddal <mads@ynddal.dk>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20240606103943.79116-5-philmd@linaro.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2024-06-10 13:05:27 -04:00
Zhenzhong Duan
b4e1670c49 vfio/igd: Use g_autofree in vfio_probe_igd_bar4_quirk()
Pointer opregion, host and lpc are allocated and freed in
vfio_probe_igd_bar4_quirk(). Use g_autofree to automatically
free them.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:22 +02:00
Zhenzhong Duan
0d3e89bea8 vfio: Use g_autofree in all call site of vfio_get_region_info()
There are some exceptions when pointer to vfio_region_info is reused.
In that case, the pointed memory is freed manually.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:22 +02:00
Zhenzhong Duan
0a0bda0acd vfio/pci-quirks: Make vfio_add_*_cap() return bool
This is to follow the coding standand in qapi/error.h to return bool
for bool-valued functions.

Include below functions:
vfio_add_virt_caps()
vfio_add_nv_gpudirect_cap()
vfio_add_vmd_shadow_cap()

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:22 +02:00
Zhenzhong Duan
d3c6a18bc7 vfio/pci-quirks: Make vfio_pci_igd_opregion_init() return bool
This is to follow the coding standand in qapi/error.h to return bool
for bool-valued functions.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan
514855e18f vfio/pci: Use g_autofree for vfio_region_info pointer
Pointer opregion is freed after vfio_pci_igd_opregion_init().
Use 'g_autofree' to avoid the g_free() calls.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan
b771a40f9e vfio/pci: Make capability related functions return bool
The functions operating on capability don't have a consistent return style.

Below functions are in bool-valued functions style:
vfio_msi_setup()
vfio_msix_setup()
vfio_add_std_cap()
vfio_add_capabilities()

Below two are integer-valued functions:
vfio_add_vendor_specific_cap()
vfio_setup_pcie_cap()

But the returned integer is only used for check succeed/failure.
Change them all to return bool so now all capability related
functions follow the coding standand in qapi/error.h to return
bool.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan
64410a741d vfio/pci: Make vfio_populate_vga() return bool
This is to follow the coding standand in qapi/error.h to return bool
for bool-valued functions.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan
c32bab074e vfio/pci: Make vfio_intx_enable() return bool
This is to follow the coding standand in qapi/error.h to return bool
for bool-valued functions.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan
e942d8f08d vfio/pci: Make vfio_populate_device() return a bool
Since vfio_populate_device() takes an 'Error **' argument,
best practices suggest to return a bool. See the qapi/error.h
Rules section.

By this chance, pass errp directly to vfio_populate_device() to
avoid calling error_propagate().

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan
713b59a674 vfio/pci: Make vfio_pci_relocate_msix() and vfio_msix_early_setup() return a bool
Since vfio_pci_relocate_msix() and vfio_msix_early_setup() takes
an 'Error **' argument, best practices suggest to return a bool.
See the qapi/error.h Rules section.

By this chance, pass errp directly to vfio_msix_early_setup() to avoid
calling error_propagate().

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan
44cd660a99 vfio/pci: Make vfio_intx_enable_kvm() return a bool
Since vfio_intx_enable_kvm() takes an 'Error **' argument,
best practices suggest to return a bool. See the qapi/error.h
Rules section.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00