From: David Hildenbrand <dahi@xxxxxxxxxxxxxxxxxx>
If guest 2 is allowed to use edat 1 / edat 2, it can also set it up for
guest 3, so let's properly check and forward the edat cpuflags.
Acked-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Signed-off-by: David Hildenbrand <dahi@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
---
arch/s390/kvm/vsie.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index 1165baf..7c9835b 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -97,6 +97,13 @@ static int prepare_cpuflags(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
/* intervention requests will be set later */
newflags = CPUSTAT_ZARCH;
+ if (cpuflags & CPUSTAT_GED && test_kvm_facility(vcpu->kvm, 8))
+ newflags |= CPUSTAT_GED;
+ if (cpuflags & CPUSTAT_GED2 && test_kvm_facility(vcpu->kvm, 78)) {
+ if (cpuflags & CPUSTAT_GED)
+ return set_validity_icpt(scb_s, 0x0001U);
+ newflags |= CPUSTAT_GED2;
+ }
atomic_set(&scb_s->cpuflags, newflags);
return 0;
--
2.5.5
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