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vfio: Move vfio_get_device_info() to helpers.c

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vfio_get_device_info() is a low level routine. Move it with the other
helpers.

Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: John Levon <john.levon@nutanix.com>
Link: https://lore.kernel.org/qemu-devel/20250318095415.670319-19-clg@redhat.com
Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-20-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Cédric Le Goater 2025-03-26 08:51:04 +01:00
parent 545256134f
commit 005b8d1045
4 changed files with 25 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

24
hw/vfio/common.c
View file

@ -1333,30 +1333,6 @@ void vfio_reset_handler(void *opaque)
}
}
struct vfio_device_info *vfio_get_device_info(int fd)
{
struct vfio_device_info *info;
uint32_t argsz = sizeof(*info);
info = g_malloc0(argsz);
retry:
info->argsz = argsz;
if (ioctl(fd, VFIO_DEVICE_GET_INFO, info)) {
g_free(info);
return NULL;
}
if (info->argsz > argsz) {
argsz = info->argsz;
info = g_realloc(info, argsz);
goto retry;
}
return info;
}
bool vfio_attach_device(char *name, VFIODevice *vbasedev,
AddressSpace *as, Error **errp)
{

24
hw/vfio/helpers.c
View file

@ -312,6 +312,30 @@ int vfio_kvm_device_del_fd(int fd, Error **errp)
return 0;
}
struct vfio_device_info *vfio_get_device_info(int fd)
{
struct vfio_device_info *info;
uint32_t argsz = sizeof(*info);
info = g_malloc0(argsz);
retry:
info->argsz = argsz;
if (ioctl(fd, VFIO_DEVICE_GET_INFO, info)) {
g_free(info);
return NULL;
}
if (info->argsz > argsz) {
argsz = info->argsz;
info = g_realloc(info, argsz);
goto retry;
}
return info;
}
int vfio_get_dev_region_info(VFIODevice *vbasedev, uint32_t type,
uint32_t subtype, struct vfio_region_info **info)
{

1
hw/vfio/vfio-helpers.h
View file

@ -25,6 +25,7 @@ bool vfio_get_info_dma_avail(struct vfio_iommu_type1_info *info,
#endif
int vfio_bitmap_alloc(VFIOBitmap *vbmap, hwaddr size);
struct vfio_device_info *vfio_get_device_info(int fd);
int vfio_kvm_device_add_fd(int fd, Error **errp);
int vfio_kvm_device_del_fd(int fd, Error **errp);

1
include/hw/vfio/vfio-common.h
View file

@ -122,7 +122,6 @@ bool vfio_set_irq_signaling(VFIODevice *vbasedev, int index, int subindex,
int action, int fd, Error **errp);
void vfio_reset_handler(void *opaque);
struct vfio_device_info *vfio_get_device_info(int fd);
bool vfio_device_is_mdev(VFIODevice *vbasedev);
bool vfio_device_hiod_realize(VFIODevice *vbasedev, Error **errp);
bool vfio_attach_device(char *name, VFIODevice *vbasedev,