diff options
| -rw-r--r-- | hw/ppc/spapr_iommu.c | 18 | ||||
| -rw-r--r-- | target/ppc/kvm.c | 7 | ||||
| -rw-r--r-- | target/ppc/kvm_ppc.h | 6 |
3 files changed, 30 insertions, 1 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 = { diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c index 84284d5957..9842b3bb12 100644 --- a/target/ppc/kvm.c +++ b/target/ppc/kvm.c @@ -137,7 +137,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s) cap_spapr_tce = kvm_check_extension(s, KVM_CAP_SPAPR_TCE); cap_spapr_tce_64 = kvm_check_extension(s, KVM_CAP_SPAPR_TCE_64); cap_spapr_multitce = kvm_check_extension(s, KVM_CAP_SPAPR_MULTITCE); - cap_spapr_vfio = false; + cap_spapr_vfio = kvm_vm_check_extension(s, KVM_CAP_SPAPR_TCE_VFIO); cap_one_reg = kvm_check_extension(s, KVM_CAP_ONE_REG); cap_hior = kvm_check_extension(s, KVM_CAP_PPC_HIOR); cap_epr = kvm_check_extension(s, KVM_CAP_PPC_EPR); @@ -2514,6 +2514,11 @@ int kvmppc_get_cap_safe_indirect_branch(void) return cap_ppc_safe_indirect_branch; } +bool kvmppc_has_cap_spapr_vfio(void) +{ + return cap_spapr_vfio; +} + PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void) { uint32_t host_pvr = mfpvr(); diff --git a/target/ppc/kvm_ppc.h b/target/ppc/kvm_ppc.h index 39830baa77..4d2789eef6 100644 --- a/target/ppc/kvm_ppc.h +++ b/target/ppc/kvm_ppc.h @@ -46,6 +46,7 @@ void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t page_shift, int kvmppc_remove_spapr_tce(void *table, int pfd, uint32_t window_size); int kvmppc_reset_htab(int shift_hint); uint64_t kvmppc_rma_size(uint64_t current_size, unsigned int hash_shift); +bool kvmppc_has_cap_spapr_vfio(void); #endif /* !CONFIG_USER_ONLY */ bool kvmppc_has_cap_epr(void); int kvmppc_define_rtas_kernel_token(uint32_t token, const char *function); @@ -232,6 +233,11 @@ static inline bool kvmppc_is_mem_backend_page_size_ok(const char *obj_path) return true; } +static inline bool kvmppc_has_cap_spapr_vfio(void) +{ + return false; +} + #endif /* !CONFIG_USER_ONLY */ static inline bool kvmppc_has_cap_epr(void) |