[PATCH 11/11] powerpc/kvm: Advertise availablity of HPT resizing on KVM HV

[David Gibson]

This updates the KVM_CAP_SPAPR_RESIZE_HPT capability to advertise the
presence of in-kernel HPT resizing on KVM HV.  In fact the HPT resizing
isn't fully implemented, but this allows us to experiment with what's
there.

Signed-off-by: David Gibson <david@xxxxxxxxxxxxxxxxxxxxx>
---
 arch/powerpc/kvm/powerpc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index bb23923..965d26b 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -606,7 +606,10 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 		r = 1;
 		break;
 	case KVM_CAP_SPAPR_RESIZE_HPT:
-		r = 1; /* resize allowed only if HPT is outside kernel */
+		if (hv_enabled)
+			r = 2; /* In-kernel resize implementation */
+		else
+			r = 1; /* outside kernel resize allowed */
 		break;
 #endif
 	case KVM_CAP_PPC_HTM:
-- 
2.9.3