KVM: powerpc: remove remaining traces of KVM_CAP_PPC_RMA

circumstances.

4.63 KVM_ALLOCATE_RMA

---------------------

:Capability: KVM_CAP_PPC_RMA

:Architectures: powerpc

:Type: vm ioctl

:Parameters: struct kvm_allocate_rma (out)

:Returns: file descriptor for mapping the allocated RMA

This allocates a Real Mode Area (RMA) from the pool allocated at boot

time by the kernel.  An RMA is a physically-contiguous, aligned region

of memory used on older POWER processors to provide the memory which

will be accessed by real-mode (MMU off) accesses in a KVM guest.

POWER processors support a set of sizes for the RMA that usually

includes 64MB, 128MB, 256MB and some larger powers of two.

::

  /* for KVM_ALLOCATE_RMA */

  struct kvm_allocate_rma {

	__u64 rma_size;

  };

The return value is a file descriptor which can be passed to mmap(2)

to map the allocated RMA into userspace.  The mapped area can then be

passed to the KVM_SET_USER_MEMORY_REGION ioctl to establish it as the

RMA for a virtual machine.  The size of the RMA in bytes (which is

fixed at host kernel boot time) is returned in the rma_size field of

the argument structure.

The KVM_CAP_PPC_RMA capability is 1 or 2 if the KVM_ALLOCATE_RMA ioctl

is supported; 2 if the processor requires all virtual machines to have

an RMA, or 1 if the processor can use an RMA but doesn't require it,

because it supports the Virtual RMA (VRMA) facility.

4.64 KVM_NMI

------------

				r = 8 | 4 | 2 | 1;

		}

		break;

	case KVM_CAP_PPC_RMA:

		r = 0;

		break;

	case KVM_CAP_PPC_HWRNG:

		r = kvmppc_hwrng_present();

		break;