From: Janosch Frank <frankja@xxxxxxxxxxxxx>
Save response to sidad and disable address checking for protected
guests.
Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
---
arch/s390/kvm/priv.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index ed52ffa8d5d4..06c7e7a10825 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -872,7 +872,7 @@ static int handle_stsi(struct kvm_vcpu *vcpu)
operand2 = kvm_s390_get_base_disp_s(vcpu, &ar);
- if (operand2 & 0xfff)
+ if (!kvm_s390_pv_is_protected(vcpu->kvm) && (operand2 & 0xfff))
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
switch (fc) {
@@ -893,8 +893,13 @@ static int handle_stsi(struct kvm_vcpu *vcpu)
handle_stsi_3_2_2(vcpu, (void *) mem);
break;
}
+ if (kvm_s390_pv_is_protected(vcpu->kvm)) {
+ memcpy((void *)vcpu->arch.sie_block->sidad, (void *)mem,
+ PAGE_SIZE);
+ rc = 0;
+ } else
+ rc = write_guest(vcpu, operand2, ar, (void *)mem, PAGE_SIZE);
- rc = write_guest(vcpu, operand2, ar, (void *)mem, PAGE_SIZE);
if (rc) {
rc = kvm_s390_inject_prog_cond(vcpu, rc);
goto out;
--
2.24.0
