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| author | Farhan Ali <alifm@linux.vnet.ibm.com> | 2017-02-24 22:12:56 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2017-04-21 11:08:11 +0200 |
| commit | 730cd632c4e485b90f97fe998e300045da094938 (patch) | |
| tree | 894c8643cbfbaa47b6973cd34a3e054840513e47 /arch/s390/kvm/kvm-s390.h | |
| parent | s390/sclp: Detect KSS facility (diff) | |
| download | linux-730cd632c4e485b90f97fe998e300045da094938.tar.xz linux-730cd632c4e485b90f97fe998e300045da094938.zip | |
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 <csmcquay@linux.vnet.ibm.com>
Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.h')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.h | 1 |
1 files changed, 1 insertions, 0 deletions
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); |