diff options
Diffstat (limited to 'Documentation/virtual/kvm/devices')
| -rw-r--r-- | Documentation/virtual/kvm/devices/arm-vgic.txt | 18 | ||||
| -rw-r--r-- | Documentation/virtual/kvm/devices/vm.txt | 2 |
2 files changed, 11 insertions, 9 deletions
diff --git a/Documentation/virtual/kvm/devices/arm-vgic.txt b/Documentation/virtual/kvm/devices/arm-vgic.txt index 3fb905429..59541d49e 100644 --- a/Documentation/virtual/kvm/devices/arm-vgic.txt +++ b/Documentation/virtual/kvm/devices/arm-vgic.txt @@ -44,28 +44,29 @@ Groups: Attributes: The attr field of kvm_device_attr encodes two values: bits: | 63 .... 40 | 39 .. 32 | 31 .... 0 | - values: | reserved | cpu id | offset | + values: | reserved | vcpu_index | offset | All distributor regs are (rw, 32-bit) The offset is relative to the "Distributor base address" as defined in the GICv2 specs. Getting or setting such a register has the same effect as - reading or writing the register on the actual hardware from the cpu - specified with cpu id field. Note that most distributor fields are not - banked, but return the same value regardless of the cpu id used to access - the register. + reading or writing the register on the actual hardware from the cpu whose + index is specified with the vcpu_index field. Note that most distributor + fields are not banked, but return the same value regardless of the + vcpu_index used to access the register. Limitations: - Priorities are not implemented, and registers are RAZ/WI - Currently only implemented for KVM_DEV_TYPE_ARM_VGIC_V2. Errors: - -ENODEV: Getting or setting this register is not yet supported + -ENXIO: Getting or setting this register is not yet supported -EBUSY: One or more VCPUs are running + -EINVAL: Invalid vcpu_index supplied KVM_DEV_ARM_VGIC_GRP_CPU_REGS Attributes: The attr field of kvm_device_attr encodes two values: bits: | 63 .... 40 | 39 .. 32 | 31 .... 0 | - values: | reserved | cpu id | offset | + values: | reserved | vcpu_index | offset | All CPU interface regs are (rw, 32-bit) @@ -91,8 +92,9 @@ Groups: - Priorities are not implemented, and registers are RAZ/WI - Currently only implemented for KVM_DEV_TYPE_ARM_VGIC_V2. Errors: - -ENODEV: Getting or setting this register is not yet supported + -ENXIO: Getting or setting this register is not yet supported -EBUSY: One or more VCPUs are running + -EINVAL: Invalid vcpu_index supplied KVM_DEV_ARM_VGIC_GRP_NR_IRQS Attributes: diff --git a/Documentation/virtual/kvm/devices/vm.txt b/Documentation/virtual/kvm/devices/vm.txt index 5542c4641..2d09d1ed8 100644 --- a/Documentation/virtual/kvm/devices/vm.txt +++ b/Documentation/virtual/kvm/devices/vm.txt @@ -74,7 +74,7 @@ struct kvm_s390_vm_cpu_processor { KVM does not enforce or limit the cpu model data in any form. Take the information retrieved by means of KVM_S390_VM_CPU_MACHINE as hint for reasonable configuration -setups. Instruction interceptions triggered by additionally set facilitiy bits that +setups. Instruction interceptions triggered by additionally set facility bits that are not handled by KVM need to by imlemented in the VM driver code. Parameters: address of buffer to store/set the processor related cpu |