| Message ID | 20090205170310.5095cd8e@cotte.boeblingen.de.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Index: kvm/arch/s390/kvm/kvm-s390.c =================================================================== --- kvm.orig/arch/s390/kvm/kvm-s390.c +++ kvm/arch/s390/kvm/kvm-s390.c @@ -481,6 +481,12 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_v vcpu_load(vcpu); + /* verify, that memory has been registered */ + if (!vcpu->kvm->arch.guest_memsize) { + vcpu_put(vcpu); + return -EINVAL; + } + if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
This check verifies that the guest we're trying to run in KVM_RUN has some memory assigned to it. It enters an endless exception loop if this is not the case. Reported-by: Mijo Safradin <mijo@linux.vnet.ibm.com> Signed-off-by: Carsten Otte <cotte@de.ibm.com> --- arch/s390/kvm/kvm-s390.c | 6 ++++++ 1 file changed, 6 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html