linux-kernel - [PATCH v1 2/2] KVM: s390: Topology expose TOPOLOGY facility

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Message-Id: <1626276343-22805-3-git-send-email-pmorel@linux.ibm.com>
Date:   Wed, 14 Jul 2021 17:25:43 +0200
From:   Pierre Morel <pmorel@...ux.ibm.com>
To:     kvm@...r.kernel.org
Cc:     linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        borntraeger@...ibm.com, frankja@...ux.ibm.com, cohuck@...hat.com,
        david@...hat.com, thuth@...hat.com, imbrenda@...ux.ibm.com,
        hca@...ux.ibm.com, gor@...ux.ibm.com, pmorel@...ux.ibm.com
Subject: [PATCH v1 2/2] KVM: s390: Topology expose TOPOLOGY facility

We add the KVM extension KVM_CAP_S390_CPU_TOPOLOGY, this will
allow the userland hypervisor to handle the interception of the
PTF (Perform topology Function) instruction.

Signed-off-by: Pierre Morel <pmorel@...ux.ibm.com>
---
 arch/s390/tools/gen_facilities.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/s390/tools/gen_facilities.c b/arch/s390/tools/gen_facilities.c
index 606324e56e4e..2c260eb22bae 100644
--- a/arch/s390/tools/gen_facilities.c
+++ b/arch/s390/tools/gen_facilities.c
@@ -112,6 +112,7 @@ static struct facility_def facility_defs[] = {
 
 		.name = "FACILITIES_KVM_CPUMODEL",
 		.bits = (int[]){
+			11, /* configuration topology facility */
 			12, /* AP Query Configuration Information */
 			15, /* AP Facilities Test */
 			156, /* etoken facility */
-- 
2.25.1