1 files changed, 27 insertions, 0 deletions

diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 225b452e1d1d..8d696cf6edcc 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -449,6 +449,30 @@ struct kvm_ppc_pvinfo {
         __u8  pad[108];
 };
 
+/* for KVM_PPC_GET_SMMU_INFO */
+#define KVM_PPC_PAGE_SIZES_MAX_SZ       8
+
+struct kvm_ppc_one_page_size {
+        __u32 page_shift;       /* Page shift (or 0) */
+        __u32 pte_enc;          /* Encoding in the HPTE (>>12) */
+};
+
+struct kvm_ppc_one_seg_page_size {
+        __u32 page_shift;       /* Base page shift of segment (or 0) */
+        __u32 slb_enc;          /* SLB encoding for BookS */
+        struct kvm_ppc_one_page_size enc[KVM_PPC_PAGE_SIZES_MAX_SZ];
+};
+
+#define KVM_PPC_PAGE_SIZES_REAL         0x00000001
+#define KVM_PPC_1T_SEGMENTS             0x00000002
+
+struct kvm_ppc_smmu_info {
+        __u64 flags;
+        __u32 slb_size;
+        __u32 pad;
+        struct kvm_ppc_one_seg_page_size sps[KVM_PPC_PAGE_SIZES_MAX_SZ];
+};
+
 #define KVMIO 0xAE
 
 /* machine type bits, to be used as argument to KVM_CREATE_VM */
@@ -591,6 +615,7 @@ struct kvm_ppc_pvinfo {
 #define KVM_CAP_PCI_2_3 75
 #define KVM_CAP_KVMCLOCK_CTRL 76
 #define KVM_CAP_SIGNAL_MSI 77
+#define KVM_CAP_PPC_GET_SMMU_INFO 78
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
@@ -800,6 +825,8 @@ struct kvm_s390_ucas_mapping {
                                        struct kvm_assigned_pci_dev)
 /* Available with KVM_CAP_SIGNAL_MSI */
 #define KVM_SIGNAL_MSI            _IOW(KVMIO,  0xa5, struct kvm_msi)
+/* Available with KVM_CAP_PPC_GET_SMMU_INFO */
+#define KVM_PPC_GET_SMMU_INFO     _IOR(KVMIO,  0xa6, struct kvm_ppc_smmu_info)
 
 /*
  * ioctls for vcpu fds