As soon as guest 2 is allowed to use the vector facility (indicated via
STFLE), it can also enable it for guest 3. We have to take care of the
sattellite block that might be used when not relying on lazy vector
copying (not the case for KVM).
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>
__u8 reserved1e6[2]; /* 0x01e6 */
__u64 itdba; /* 0x01e8 */
__u64 riccbd; /* 0x01f0 */
__u8 reserved1e6[2]; /* 0x01e6 */
__u64 itdba; /* 0x01e8 */
__u64 riccbd; /* 0x01f0 */
- __u8 reserved1f8[8]; /* 0x01f8 */
+ __u64 gvrd; /* 0x01f8 */
} __attribute__((packed));
struct kvm_s390_itdb {
} __attribute__((packed));
struct kvm_s390_itdb {
prefix_unmapped(vsie_page);
scb_s->ecb |= scb_o->ecb & 0x10U;
}
prefix_unmapped(vsie_page);
scb_s->ecb |= scb_o->ecb & 0x10U;
}
+ /* SIMD */
+ if (test_kvm_facility(vcpu->kvm, 129)) {
+ scb_s->eca |= scb_o->eca & 0x00020000U;
+ scb_s->ecd |= scb_o->ecd & 0x20000000U;
+ }
prepare_ibc(vcpu, vsie_page);
rc = shadow_crycb(vcpu, vsie_page);
prepare_ibc(vcpu, vsie_page);
rc = shadow_crycb(vcpu, vsie_page);
unpin_guest_page(vcpu->kvm, gpa, hpa);
scb_s->itdba = 0;
}
unpin_guest_page(vcpu->kvm, gpa, hpa);
scb_s->itdba = 0;
}
+
+ hpa = scb_s->gvrd;
+ if (hpa) {
+ gpa = scb_o->gvrd & ~0x1ffUL;
+ unpin_guest_page(vcpu->kvm, gpa, hpa);
+ scb_s->gvrd = 0;
+ }
goto unpin;
scb_s->itdba = hpa;
}
goto unpin;
scb_s->itdba = hpa;
}
+
+ gpa = scb_o->gvrd & ~0x1ffUL;
+ if (gpa && (scb_s->eca & 0x00020000U) &&
+ !(scb_s->ecd & 0x20000000U)) {
+ if (!(gpa & ~0x1fffUL)) {
+ rc = set_validity_icpt(scb_s, 0x1310U);
+ goto unpin;
+ }
+ /*
+ * 512 bytes vector registers cannot cross page boundaries
+ * if this block gets bigger, we have to shadow it.
+ */
+ rc = pin_guest_page(vcpu->kvm, gpa, &hpa);
+ if (rc == -EINVAL)
+ rc = set_validity_icpt(scb_s, 0x1310U);
+ if (rc)
+ goto unpin;
+ scb_s->gvrd = hpa;
+ }
return 0;
unpin:
unpin_blocks(vcpu, vsie_page);
return 0;
unpin:
unpin_blocks(vcpu, vsie_page);