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| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2015-11-25 13:02:26 +0300 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2016-06-21 10:43:39 +0300 |
| commit | 19c439b564b05939b83876a687bd48389d0aebb5 (patch) | |
| tree | d705805c43a58bf7dcd670af85ac40101e09d3ca /arch/s390/kvm/vsie.c | |
| parent | 588438cba015ff3d14504b7598308dd3ebe06a99 (diff) | |
| download | linux-19c439b564b05939b83876a687bd48389d0aebb5.tar.xz | |
KVM: s390: vsie: support 64-bit-SCAO
Let's provide the 64-bit-SCAO facility to guest 2, so he can set up a SCA
for guest 3 that has a 64 bit address. Please note that we already require
the 64 bit SCAO for our vsie implementation, in order to forward the SCA
directly (by pinning the page).
Acked-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/vsie.c')
| -rw-r--r-- | arch/s390/kvm/vsie.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c index ebc988ffd3e5..44e66c329026 100644 --- a/arch/s390/kvm/vsie.c +++ b/arch/s390/kvm/vsie.c @@ -449,6 +449,8 @@ static void unpin_blocks(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) hpa = (u64) scb_s->scaoh << 32 | scb_s->scaol; if (hpa) { gpa = scb_o->scaol & ~0xfUL; + if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_64BSCAO)) + gpa |= (u64) scb_o->scaoh << 32; unpin_guest_page(vcpu->kvm, gpa, hpa); scb_s->scaol = 0; scb_s->scaoh = 0; @@ -499,6 +501,8 @@ static int pin_blocks(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) int rc = 0; gpa = scb_o->scaol & ~0xfUL; + if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_64BSCAO)) + gpa |= (u64) scb_o->scaoh << 32; if (gpa) { if (!(gpa & ~0x1fffUL)) rc = set_validity_icpt(scb_s, 0x0038U); |