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KVM: s390: Fix kvm on IBM System z10

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The z10 system supports large pages, kvm-s390 doesnt.
Make sure that we dont advertise large pages to avoid the guest crashing as
soon as the guest kernel activates DAT.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Christian Borntraeger 2008-07-29 23:48:42 +02:00 committed by Avi Kivity
parent ed84862433
commit 1f4170e12d
1 changed files with 1 additions and 0 deletions
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arch/s390/kvm/priv.c
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@ -158,6 +158,7 @@ static int handle_stfl(struct kvm_vcpu *vcpu)
vcpu->stat.instruction_stfl++; vcpu->stat.instruction_stfl++;
facility_list &= ~(1UL<<24); /* no stfle */ facility_list &= ~(1UL<<24); /* no stfle */
facility_list &= ~(1UL<<23); /* no large pages */
rc = copy_to_guest(vcpu, offsetof(struct _lowcore, stfl_fac_list), rc = copy_to_guest(vcpu, offsetof(struct _lowcore, stfl_fac_list),
&facility_list, sizeof(facility_list)); &facility_list, sizeof(facility_list));