Re: [PATCH v2 09/11] KVM: s390: Add capability for storage key extension of MEM_OP IOCTL

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On 2/7/22 17:59, Janis Schoetterl-Glausch wrote:
Availability of the KVM_CAP_S390_MEM_OP_EXTENSION capability signals that:
* The vcpu MEM_OP IOCTL supports storage key checking.
* The vm MEM_OP IOCTL exists.

Reviewed-by: Janosch Frank <frankja@xxxxxxxxxxxxx>


Signed-off-by: Janis Schoetterl-Glausch <scgl@xxxxxxxxxxxxx>
---
  arch/s390/kvm/kvm-s390.c | 1 +
  include/uapi/linux/kvm.h | 1 +
  2 files changed, 2 insertions(+)

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index befb30923c0e..4a502cac068c 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -565,6 +565,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
  	case KVM_CAP_S390_VCPU_RESETS:
  	case KVM_CAP_SET_GUEST_DEBUG:
  	case KVM_CAP_S390_DIAG318:
+	case KVM_CAP_S390_MEM_OP_EXTENSION:
  		r = 1;
  		break;
  	case KVM_CAP_SET_GUEST_DEBUG2:
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index ea81132a1cb1..50ce814267b3 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1140,6 +1140,7 @@ struct kvm_ppc_resize_hpt {
  #define KVM_CAP_VM_GPA_BITS 207
  #define KVM_CAP_XSAVE2 208
  #define KVM_CAP_SYS_ATTRIBUTES 209
+#define KVM_CAP_S390_MEM_OP_EXTENSION 210
#ifdef KVM_CAP_IRQ_ROUTING




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