The patch introduces helper function vfio_pci_container_ioctl() to pass ioctl commands to the specified VFIO container that is identified by IOMMU group id. On sPAPR platform, each container only has one IOMMU group.
Signed-off-by: Gavin Shan <gws...@linux.vnet.ibm.com> --- hw/misc/vfio.c | 31 +++++++++++++++++++++++++++++++ include/hw/misc/vfio.h | 2 ++ 2 files changed, 33 insertions(+) diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c index 0796abf..999d97d 100644 --- a/hw/misc/vfio.c +++ b/hw/misc/vfio.c @@ -4310,3 +4310,34 @@ put_group_exit: return n; } + +int vfio_pci_container_ioctl(int iommu_group_id, int req, int opt) +{ + VFIOGroup *group; + int ret, fd = 0; + + /* Search container's fd */ + QLIST_FOREACH(group, &group_list, next) { + if (group->groupid == iommu_group_id) { + fd = group->container ? group->container->fd : 0; + break; + } + } + + if (fd <= 0) { + return -ENOENT; + } + + switch (req) { + case VFIO_EEH_PE_OP: { + struct vfio_eeh_pe_op op = { .argsz = sizeof(op), .op = opt }; + + ret = ioctl(fd, req, &op); + break; + } + default: + ret = -EINVAL; + } + + return ret; +} diff --git a/include/hw/misc/vfio.h b/include/hw/misc/vfio.h index 53ec665..dc92fae 100644 --- a/include/hw/misc/vfio.h +++ b/include/hw/misc/vfio.h @@ -30,4 +30,6 @@ static inline long vfio_kvm_notify(Notifier *n, unsigned request, void *data) return p.ret; } +extern int vfio_pci_container_ioctl(int iommu_group_id, int req, int opt); + #endif -- 1.8.3.2