| Message ID | 1397040298-59306-2-git-send-email-borntraeger@de.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c index 03a05ff..08dfc83 100644 --- a/arch/s390/kvm/diag.c +++ b/arch/s390/kvm/diag.c @@ -167,6 +167,10 @@ static int __diag_ipl_functions(struct kvm_vcpu *vcpu) VCPU_EVENT(vcpu, 5, "diag ipl functions, subcode %lx", subcode); switch (subcode) { + case 0: + case 1: + page_table_reset_pgste(current->mm, 0, TASK_SIZE); + return -EOPNOTSUPP; case 3: vcpu->run->s390_reset_flags = KVM_S390_RESET_CLEAR; page_table_reset_pgste(current->mm, 0, TASK_SIZE);
We need to reset the usage state of the pages on kexec/kdump, which use subcode 0 and 1. We will only do the cmma reset in the kernel, everything else is done in userspace as before. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> --- arch/s390/kvm/diag.c | 4 ++++ 1 file changed, 4 insertions(+)