diff options
Diffstat (limited to 'hw/ppc/spapr_iommu.c')
| -rw-r--r-- | hw/ppc/spapr_iommu.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/hw/ppc/spapr_iommu.c b/hw/ppc/spapr_iommu.c index 5ccd785d5a..aaa6010d5c 100644 --- a/hw/ppc/spapr_iommu.c +++ b/hw/ppc/spapr_iommu.c @@ -160,6 +160,19 @@ static uint64_t spapr_tce_get_min_page_size(IOMMUMemoryRegion *iommu) return 1ULL << tcet->page_shift; } +static int spapr_tce_get_attr(IOMMUMemoryRegion *iommu, + enum IOMMUMemoryRegionAttr attr, void *data) +{ + sPAPRTCETable *tcet = container_of(iommu, sPAPRTCETable, iommu); + + if (attr == IOMMU_ATTR_SPAPR_TCE_FD && kvmppc_has_cap_spapr_vfio()) { + *(int *) data = tcet->fd; + return 0; + } + + return -EINVAL; +} + static void spapr_tce_notify_flag_changed(IOMMUMemoryRegion *iommu, IOMMUNotifierFlag old, IOMMUNotifierFlag new) @@ -284,6 +297,10 @@ void spapr_tce_set_need_vfio(sPAPRTCETable *tcet, bool need_vfio) tcet->need_vfio = need_vfio; + if (!need_vfio || (tcet->fd != -1 && kvmppc_has_cap_spapr_vfio())) { + return; + } + oldtable = tcet->table; tcet->table = spapr_tce_alloc_table(tcet->liobn, @@ -643,6 +660,7 @@ static void spapr_iommu_memory_region_class_init(ObjectClass *klass, void *data) imrc->translate = spapr_tce_translate_iommu; imrc->get_min_page_size = spapr_tce_get_min_page_size; imrc->notify_flag_changed = spapr_tce_notify_flag_changed; + imrc->get_attr = spapr_tce_get_attr; } static const TypeInfo spapr_iommu_memory_region_info = { |