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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-07-01 14:36:04 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-08-26 10:09:03 +0200 |
| commit | c6c956b80bdf151cf41d3e7e5c54755d930a212c (patch) | |
| tree | 2f105bb983034a098f6f26eb1564397273ba39b6 /arch/s390/kvm | |
| parent | KVM: s390/mm: use radix trees for guest to host mappings (diff) | |
| download | linux-c6c956b80bdf151cf41d3e7e5c54755d930a212c.tar.xz linux-c6c956b80bdf151cf41d3e7e5c54755d930a212c.zip | |
KVM: s390/mm: support gmap page tables with less than 5 levels
Add an addressing limit to the gmap address spaces and only allocate
the page table levels that are needed for the given limit. The limit
is fixed and can not be changed after a gmap has been created.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 543c24baf1eb..82065dc7948d 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -451,7 +451,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) if (type & KVM_VM_S390_UCONTROL) { kvm->arch.gmap = NULL; } else { - kvm->arch.gmap = gmap_alloc(current->mm); + kvm->arch.gmap = gmap_alloc(current->mm, -1UL); if (!kvm->arch.gmap) goto out_nogmap; kvm->arch.gmap->private = kvm; @@ -535,7 +535,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) vcpu->arch.pfault_token = KVM_S390_PFAULT_TOKEN_INVALID; kvm_clear_async_pf_completion_queue(vcpu); if (kvm_is_ucontrol(vcpu->kvm)) { - vcpu->arch.gmap = gmap_alloc(current->mm); + vcpu->arch.gmap = gmap_alloc(current->mm, -1UL); if (!vcpu->arch.gmap) return -ENOMEM; vcpu->arch.gmap->private = vcpu->kvm; |