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| author | John Levon <john.levon@nutanix.com> | 2025-05-07 16:20:09 +0100 |
|---|---|---|
| committer | Cédric Le Goater <clg@redhat.com> | 2025-05-09 12:42:28 +0200 |
| commit | 5321e623ebe27deef7cfb793a71d23affa77d157 (patch) | |
| tree | bcb604149b4311991eef9dbc241e3afbdf66d541 /hw/vfio/device.c | |
| parent | ef73671f0bfc7bd852439e42ab4260104d902055 (diff) | |
| download | focaccia-qemu-5321e623ebe27deef7cfb793a71d23affa77d157.tar.gz focaccia-qemu-5321e623ebe27deef7cfb793a71d23affa77d157.zip | |
vfio: add vfio_device_get_irq_info() helper
Add a helper similar to vfio_device_get_region_info() and use it everywhere. Replace a couple of needless allocations with stack variables. As a side-effect, this fixes a minor error reporting issue in the call from vfio_msix_early_setup(). Reviewed-by: Cédric Le Goater <clg@redhat.com> Signed-off-by: John Levon <john.levon@nutanix.com> Link: https://lore.kernel.org/qemu-devel/20250507152020.1254632-5-john.levon@nutanix.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'hw/vfio/device.c')
| -rw-r--r-- | hw/vfio/device.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/hw/vfio/device.c b/hw/vfio/device.c index 9673b0717e..5d837092cb 100644 --- a/hw/vfio/device.c +++ b/hw/vfio/device.c @@ -185,6 +185,21 @@ bool vfio_device_irq_set_signaling(VFIODevice *vbasedev, int index, int subindex return false; } +int vfio_device_get_irq_info(VFIODevice *vbasedev, int index, + struct vfio_irq_info *info) +{ + int ret; + + memset(info, 0, sizeof(*info)); + + info->argsz = sizeof(*info); + info->index = index; + + ret = ioctl(vbasedev->fd, VFIO_DEVICE_GET_IRQ_INFO, info); + + return ret < 0 ? -errno : ret; +} + int vfio_device_get_region_info(VFIODevice *vbasedev, int index, struct vfio_region_info **info) { |