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| author |   David Hildenbrand <dahi@linux.vnet.ibm.com> | 2015-11-24 13:47:13 +0100 |
|---|---|---|
| committer |   Christian Borntraeger <borntraeger@de.ibm.com> | 2016-06-10 12:07:18 +0200 |
| commit | 89b5b4de33902a57cb9c8f2d06de4ffbc921de15 (patch) | |
| tree | 0029cea5525edeaa97dbf02c916c18d4e0197161 /arch/s390/kvm/kvm-s390.c | |
| parent | s390/sclp: detect guest-PER enhancement (diff) | |
| download | linux-dev-89b5b4de33902a57cb9c8f2d06de4ffbc921de15.tar.xz linux-dev-89b5b4de33902a57cb9c8f2d06de4ffbc921de15.zip | |
KVM: s390: guestdbg: signal missing hardware support
Without guest-PER enhancement, we can't provide any debugging support.
Therefore act like kernel support is missing.
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.c')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index efb902cdd1d2..e477c8e5b5c1 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -2179,6 +2179,8 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, if (dbg->control & ~VALID_GUESTDBG_FLAGS) return -EINVAL; + if (!sclp.has_gpere) + return -EINVAL; if (dbg->control & KVM_GUESTDBG_ENABLE) { vcpu->guest_debug = dbg->control; |