From 730cd632c4e485b90f97fe998e300045da094938 Mon Sep 17 00:00:00 2001 From: Farhan Ali Date: Fri, 24 Feb 2017 16:12:56 -0500 Subject: KVM: s390: Support keyless subset guest mode If the KSS facility is available on the machine, we also make it available for our KVM guests. The KSS facility bypasses storage key management as long as the guest does not issue a related instruction. When that happens, the control is returned to the host, which has to turn off KSS for a guest vcpu before retrying the instruction. Signed-off-by: Corey S. McQuay Signed-off-by: Farhan Ali Signed-off-by: Christian Borntraeger --- arch/s390/kvm/kvm-s390.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/s390/kvm/kvm-s390.h') diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index 455124fe0647..55f5c8457d6d 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -254,6 +254,7 @@ int kvm_s390_handle_lpsw(struct kvm_vcpu *vcpu); int kvm_s390_handle_stctl(struct kvm_vcpu *vcpu); int kvm_s390_handle_lctl(struct kvm_vcpu *vcpu); int kvm_s390_handle_eb(struct kvm_vcpu *vcpu); +int kvm_s390_skey_check_enable(struct kvm_vcpu *vcpu); /* implemented in vsie.c */ int kvm_s390_handle_vsie(struct kvm_vcpu *vcpu); -- cgit v1.2.3-59-g8ed1b