Commit b87cc116 authored by Bharata B Rao's avatar Bharata B Rao Committed by Michael Ellerman

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: default avatarBharata B Rao <bharata@linux.ibm.com>
Reviewed-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210621085003.904767-6-bharata@linux.ibm.com
parent 53324b51
......@@ -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.
======================
......
......@@ -682,6 +682,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
r = !!(hv_enabled && kvmppc_hv_ops->enable_dawr1 &&
!kvmppc_hv_ops->enable_dawr1(NULL));
break;
case KVM_CAP_PPC_RPT_INVALIDATE:
r = 1;
break;
#endif
default:
r = 0;
......
......@@ -1082,6 +1082,7 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_SGX_ATTRIBUTE 196
#define KVM_CAP_VM_COPY_ENC_CONTEXT_FROM 197
#define KVM_CAP_PTP_KVM 198
#define KVM_CAP_PPC_RPT_INVALIDATE 199
#ifdef KVM_CAP_IRQ_ROUTING
......
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