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| author | Paolo Bonzini <pbonzini@redhat.com> | 2024-10-23 15:45:03 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-11-08 13:57:13 +0300 |
| commit | e16e018e8283cceda36b5e61ab454fdccbd516ca (patch) | |
| tree | 1a366f8b54c816c862d2d68402c4705b192477fa /Documentation/virt | |
| parent | aa0d42cacf093a6fcca872edc954f6f812926a17 (diff) | |
| download | linux-e16e018e8283cceda36b5e61ab454fdccbd516ca.tar.xz | |
KVM: powerpc: remove remaining traces of KVM_CAP_PPC_RMA
This was only needed for PPC970 support, which is long gone: the
implementation was removed in 2014.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20241023124507.280382-2-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'Documentation/virt')
| -rw-r--r-- | Documentation/virt/kvm/api.rst | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst index edc070c6e19b..16fe2fc6348c 100644 --- a/Documentation/virt/kvm/api.rst +++ b/Documentation/virt/kvm/api.rst @@ -2170,42 +2170,6 @@ userspace update the TCE table directly which is useful in some 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 ------------ |