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Diffstat (limited to 'Documentation/virtual/kvm/api.txt')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 976eb650e7ef..c09d1832e935 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -1792,6 +1792,23 @@ registers, find a list below: PPC | KVM_REG_PPC_TSR | 32 PPC | KVM_REG_PPC_OR_TSR | 32 PPC | KVM_REG_PPC_CLEAR_TSR | 32 + PPC | KVM_REG_PPC_MAS0 | 32 + PPC | KVM_REG_PPC_MAS1 | 32 + PPC | KVM_REG_PPC_MAS2 | 64 + PPC | KVM_REG_PPC_MAS7_3 | 64 + PPC | KVM_REG_PPC_MAS4 | 32 + PPC | KVM_REG_PPC_MAS6 | 32 + PPC | KVM_REG_PPC_MMUCFG | 32 + PPC | KVM_REG_PPC_TLB0CFG | 32 + PPC | KVM_REG_PPC_TLB1CFG | 32 + PPC | KVM_REG_PPC_TLB2CFG | 32 + PPC | KVM_REG_PPC_TLB3CFG | 32 + PPC | KVM_REG_PPC_TLB0PS | 32 + PPC | KVM_REG_PPC_TLB1PS | 32 + PPC | KVM_REG_PPC_TLB2PS | 32 + PPC | KVM_REG_PPC_TLB3PS | 32 + PPC | KVM_REG_PPC_EPTCFG | 32 + PPC | KVM_REG_PPC_ICP_STATE | 64 ARM registers are mapped using the lower 32 bits. The upper 16 of that is the register group type, or coprocessor number: @@ -2173,6 +2190,76 @@ header; first `n_valid' valid entries with contents from the data written, then `n_invalid' invalid entries, invalidating any previously valid entries found. +4.79 KVM_CREATE_DEVICE + +Capability: KVM_CAP_DEVICE_CTRL +Type: vm ioctl +Parameters: struct kvm_create_device (in/out) +Returns: 0 on success, -1 on error +Errors: + ENODEV: The device type is unknown or unsupported + EEXIST: Device already created, and this type of device may not + be instantiated multiple times + + Other error conditions may be defined by individual device types or + have their standard meanings. + +Creates an emulated device in the kernel. The file descriptor returned +in fd can be used with KVM_SET/GET/HAS_DEVICE_ATTR. + +If the KVM_CREATE_DEVICE_TEST flag is set, only test whether the +device type is supported (not necessarily whether it can be created +in the current vm). + +Individual devices should not define flags. Attributes should be used +for specifying any behavior that is not implied by the device type +number. + +struct kvm_create_device { + __u32 type; /* in: KVM_DEV_TYPE_xxx */ + __u32 fd; /* out: device handle */ + __u32 flags; /* in: KVM_CREATE_DEVICE_xxx */ +}; + +4.80 KVM_SET_DEVICE_ATTR/KVM_GET_DEVICE_ATTR + +Capability: KVM_CAP_DEVICE_CTRL +Type: device ioctl +Parameters: struct kvm_device_attr +Returns: 0 on success, -1 on error +Errors: + ENXIO: The group or attribute is unknown/unsupported for this device + EPERM: The attribute cannot (currently) be accessed this way + (e.g. read-only attribute, or attribute that only makes + sense when the device is in a different state) + + Other error conditions may be defined by individual device types. + +Gets/sets a specified piece of device configuration and/or state. The +semantics are device-specific. See individual device documentation in +the "devices" directory. As with ONE_REG, the size of the data +transferred is defined by the particular attribute. + +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 */ +}; + +4.81 KVM_HAS_DEVICE_ATTR + +Capability: KVM_CAP_DEVICE_CTRL +Type: device ioctl +Parameters: struct kvm_device_attr +Returns: 0 on success, -1 on error +Errors: + ENXIO: The group or attribute is unknown/unsupported for this device + +Tests whether a device supports a particular attribute. A successful +return indicates the attribute is implemented. It does not necessarily +indicate that the attribute can be read or written in the device's +current state. "addr" is ignored. 4.77 KVM_ARM_VCPU_INIT @@ -2255,6 +2342,25 @@ and distributor interface, the ioctl must be called after calling KVM_CREATE_IRQCHIP, but before calling KVM_RUN on any of the VCPUs. Calling this ioctl twice for any of the base addresses will return -EEXIST. +4.82 KVM_PPC_RTAS_DEFINE_TOKEN + +Capability: KVM_CAP_PPC_RTAS +Architectures: ppc +Type: vm ioctl +Parameters: struct kvm_rtas_token_args +Returns: 0 on success, -1 on error + +Defines a token value for a RTAS (Run Time Abstraction Services) +service in order to allow it to be handled in the kernel. The +argument struct gives the name of the service, which must be the name +of a service that has a kernel-side implementation. If the token +value is non-zero, it will be associated with that service, and +subsequent RTAS calls by the guest specifying that token will be +handled by the kernel. If the token value is 0, then any token +associated with the service will be forgotten, and subsequent RTAS +calls by the guest for that service will be passed to userspace to be +handled. + 5. The kvm_run structure ------------------------ @@ -2658,3 +2764,11 @@ to receive the topmost interrupt vector. When disabled (args[0] == 0), behavior is as if this facility is unsupported. When this capability is enabled, KVM_EXIT_EPR can occur. + +6.6 KVM_CAP_IRQ_MPIC + +Architectures: ppc +Parameters: args[0] is the MPIC device fd + args[1] is the MPIC CPU number for this vcpu + +This capability connects the vcpu to an in-kernel MPIC device. |