linux-kernel - [PATCHv2 11/11] powerpc/kvm: Advertise availablity of HPT resizing on KVM HV

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Message-Id: <20161220054907.9204-12-david@gibson.dropbear.id.au>
Date:   Tue, 20 Dec 2016 16:49:07 +1100
From:   David Gibson <david@...son.dropbear.id.au>
To:     paulus@...ba.org, sjitindarsingh@...il.com
Cc:     benh@...nel.crashing.org, thuth@...hat.com, lvivier@...hat.com,
        linuxppc-dev@...ts.ozlabs.org, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        David Gibson <david@...son.dropbear.id.au>
Subject: [PATCHv2 11/11] powerpc/kvm: Advertise availablity of HPT resizing on KVM HV

This updates the KVM_CAP_SPAPR_RESIZE_HPT capability to advertise the
presence of in-kernel HPT resizing on KVM HV.

Signed-off-by: David Gibson <david@...son.dropbear.id.au>
---
 arch/powerpc/kvm/powerpc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index efd1183..1f32235 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -605,6 +605,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_SPAPR_MULTITCE:
 		r = 1;
 		break;
+	case KVM_CAP_SPAPR_RESIZE_HPT:
+		r = !!hv_enabled;
+		break;
 #endif
 	case KVM_CAP_PPC_HTM:
 		r = cpu_has_feature(CPU_FTR_TM_COMP) &&
-- 
2.9.3