KVM: PPC: e500: MMU API

This implements a shared-memory API for giving host userspace access to
the guest's TLB.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 245bcb3a0fcd..fa029ced4bd5 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -581,6 +581,7 @@ struct kvm_ppc_pvinfo {
 #define KVM_CAP_PPC_RMA 65
 #define KVM_CAP_MAX_VCPUS 66       /* returns max vcpus per vm */
 #define KVM_CAP_PPC_PAPR 68
+#define KVM_CAP_SW_TLB 69
 #define KVM_CAP_S390_GMAP 71
 #define KVM_CAP_TSC_DEADLINE_TIMER 72
 #define KVM_CAP_S390_UCONTROL 73
@@ -664,6 +665,21 @@ struct kvm_clock_data {
         __u32 pad[9];
 };
 
+#define KVM_MMU_FSL_BOOKE_NOHV          0
+#define KVM_MMU_FSL_BOOKE_HV            1
+
+struct kvm_config_tlb {
+        __u64 params;
+        __u64 array;
+        __u32 mmu_type;
+        __u32 array_len;
+};
+
+struct kvm_dirty_tlb {
+        __u64 bitmap;
+        __u32 num_dirty;
+};
+
 /*
  * ioctls for VM fds
  */
@@ -801,6 +817,8 @@ struct kvm_s390_ucas_mapping {
 #define KVM_CREATE_SPAPR_TCE      _IOW(KVMIO,  0xa8, struct kvm_create_spapr_tce)
 /* Available with KVM_CAP_RMA */
 #define KVM_ALLOCATE_RMA          _IOR(KVMIO,  0xa9, struct kvm_allocate_rma)
+/* Available with KVM_CAP_SW_TLB */
+#define KVM_DIRTY_TLB             _IOW(KVMIO,  0xaa, struct kvm_dirty_tlb)
 
 #define KVM_DEV_ASSIGN_ENABLE_IOMMU     (1 << 0)