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Date: Fri, 11 Nov 2022 18:06:29 +0100
From: Claudio Imbrenda <imbrenda@...ux.ibm.com>
To: kvm@...r.kernel.org
Cc: borntraeger@...ibm.com, frankja@...ux.ibm.com, thuth@...hat.com,
david@...hat.com, linux-s390@...r.kernel.org,
linux-kernel@...r.kernel.org, scgl@...ux.ibm.com,
seiden@...ux.ibm.com, nrb@...ux.ibm.com
Subject: [PATCH v16 3/6] KVM: s390: pv: add KVM_CAP_S390_PROTECTED_ASYNC_DISABLE
Add KVM_CAP_S390_PROTECTED_ASYNC_DISABLE to signal that the
KVM_PV_ASYNC_DISABLE and KVM_PV_ASYNC_DISABLE_PREPARE commands for the
KVM_S390_PV_COMMAND ioctl are available.
Signed-off-by: Claudio Imbrenda <imbrenda@...ux.ibm.com>
Reviewed-by: Nico Boehr <nrb@...ux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@...ux.ibm.com>
Reviewed-by: Janosch Frank <frankja@...ux.ibm.com>
---
arch/s390/kvm/kvm-s390.c | 3 +++
include/uapi/linux/kvm.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index f0abaaf7eea4..b6cc7d2935c0 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -618,6 +618,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_S390_BPB:
r = test_facility(82);
break;
+ case KVM_CAP_S390_PROTECTED_ASYNC_DISABLE:
+ r = async_destroy && is_prot_virt_host();
+ break;
case KVM_CAP_S390_PROTECTED:
r = is_prot_virt_host();
break;
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index b3701b23ca18..d3f86a280858 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1178,6 +1178,7 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_S390_ZPCI_OP 221
#define KVM_CAP_S390_CPU_TOPOLOGY 222
#define KVM_CAP_DIRTY_LOG_RING_ACQ_REL 223
+#define KVM_CAP_S390_PROTECTED_ASYNC_DISABLE 224
#ifdef KVM_CAP_IRQ_ROUTING
--
2.38.1
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