kvm: add device control API

[~andy/linux] / include / uapi / linux / kvm.h

diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index c741902c9e0b080c9eb86969a802d2cd33ab2c52..38a0be0c199f65ef347a2d77b15bd73922130076 100644 (file)
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -666,6 +666,7 @@ struct kvm_ppc_smmu_info {
 #define KVM_CAP_PPC_EPR 86
 #define KVM_CAP_ARM_PSCI 87
 #define KVM_CAP_ARM_SET_DEVICE_ADDR 88
+#define KVM_CAP_DEVICE_CTRL 89
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
@@ -818,6 +819,24 @@ struct kvm_arm_device_addr {
        __u64 addr;
 };
 
+/*
+ * Device control API, available with KVM_CAP_DEVICE_CTRL
+ */
+#define KVM_CREATE_DEVICE_TEST         1
+
+struct kvm_create_device {
+       __u32   type;   /* in: KVM_DEV_TYPE_xxx */
+       __u32   fd;     /* out: device handle */
+       __u32   flags;  /* in: KVM_CREATE_DEVICE_xxx */
+};
+
+struct kvm_device_attr {
+       __u32   flags;          /* no flags currently defined */
+       __u32   group;          /* device-defined */
+       __u64   attr;           /* group-defined */
+       __u64   addr;           /* userspace address of attr data */
+};
+
 /*
  * ioctls for VM fds
  */
@@ -906,6 +925,14 @@ struct kvm_s390_ucas_mapping {
 /* Available with KVM_CAP_ARM_SET_DEVICE_ADDR */
 #define KVM_ARM_SET_DEVICE_ADDR          _IOW(KVMIO,  0xab, struct kvm_arm_device_addr)
 
+/* ioctl for vm fd */
+#define KVM_CREATE_DEVICE        _IOWR(KVMIO,  0xe0, struct kvm_create_device)
+
+/* ioctls for fds returned by KVM_CREATE_DEVICE */
+#define KVM_SET_DEVICE_ATTR      _IOW(KVMIO,  0xe1, struct kvm_device_attr)
+#define KVM_GET_DEVICE_ATTR      _IOW(KVMIO,  0xe2, struct kvm_device_attr)
+#define KVM_HAS_DEVICE_ATTR      _IOW(KVMIO,  0xe3, struct kvm_device_attr)
+
 /*
  * ioctls for vcpu fds
  */