diff options
| author | Paul Mackerras <paulus@ozlabs.org> | 2018-09-21 20:02:01 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2018-10-09 16:14:47 +1100 |
| commit | aa069a996951f3e2e38437ef0316685a5893fc7e (patch) | |
| tree | 40de54d39eeb75cb318b221a3d497a032ca72ab4 /arch/powerpc/include | |
| parent | 9d67121a4fce20e0f7f127d40cd824fbbf5297dc (diff) | |
KVM: PPC: Book3S HV: Add a VM capability to enable nested virtualization
With this, userspace can enable a KVM-HV guest to run nested guests
under it.
The administrator can control whether any nested guests can be run;
setting the "nested" module parameter to false prevents any guests
becoming nested hypervisors (that is, any attempt to enable the nested
capability on a guest will fail). Guests which are already nested
hypervisors will continue to be so.
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_ppc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h index 88362ccda549..9b89b1918dfc 100644 --- a/arch/powerpc/include/asm/kvm_ppc.h +++ b/arch/powerpc/include/asm/kvm_ppc.h @@ -325,6 +325,7 @@ struct kvmppc_ops { int (*set_smt_mode)(struct kvm *kvm, unsigned long mode, unsigned long flags); void (*giveup_ext)(struct kvm_vcpu *vcpu, ulong msr); + int (*enable_nested)(struct kvm *kvm); }; extern struct kvmppc_ops *kvmppc_hv_ops; |