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| author | Bharata B Rao <bharata@linux.ibm.com> | 2021-06-21 10:50:02 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-06-22 15:38:28 +0200 |
| commit | b87cc116c7e1bc62a84d8c46acd401db179edb11 (patch) | |
| tree | 6ddae768e2caf9a5940bd85bdf3374a494a91f52 /Documentation/virt | |
| parent | KVM: PPC: Book3S HV: Nested support in H_RPT_INVALIDATE (diff) | |
| download | linux-b87cc116c7e1bc62a84d8c46acd401db179edb11.tar.xz linux-b87cc116c7e1bc62a84d8c46acd401db179edb11.zip | |
KVM: PPC: Book3S HV: Add KVM_CAP_PPC_RPT_INVALIDATE capability
Now that we have H_RPT_INVALIDATE fully implemented, enable
support for the same via KVM_CAP_PPC_RPT_INVALIDATE KVM capability
Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210621085003.904767-6-bharata@linux.ibm.com
Diffstat (limited to 'Documentation/virt')
| -rw-r--r-- | Documentation/virt/kvm/api.rst | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst index 7fcb2fd38f42..9977e845633f 100644 --- a/Documentation/virt/kvm/api.rst +++ b/Documentation/virt/kvm/api.rst @@ -6362,6 +6362,24 @@ default. See Documentation/x86/sgx/2.Kernel-internals.rst for more details. +7.26 KVM_CAP_PPC_RPT_INVALIDATE +------------------------------- + +:Capability: KVM_CAP_PPC_RPT_INVALIDATE +:Architectures: ppc +:Type: vm + +This capability indicates that the kernel is capable of handling +H_RPT_INVALIDATE hcall. + +In order to enable the use of H_RPT_INVALIDATE in the guest, +user space might have to advertise it for the guest. For example, +IBM pSeries (sPAPR) guest starts using it if "hcall-rpt-invalidate" is +present in the "ibm,hypertas-functions" device-tree property. + +This capability is enabled for hypervisors on platforms like POWER9 +that support radix MMU. + 8. Other capabilities. ====================== |