[PATCH v6 09/18] s390x: protvirt: Move STSI data over SIDAD

[Janosch Frank <frankja@linux.ibm.com>]

For protected guests, we need to put the STSI emulation results into
the SIDA, so SIE will write them into the guest at the next entry.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
---
 target/s390x/kvm.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c
index cdcd538b4f..43fc0c088b 100644
--- a/target/s390x/kvm.c
+++ b/target/s390x/kvm.c
@@ -1797,11 +1797,16 @@ static int handle_tsch(S390CPU *cpu)
 
 static void insert_stsi_3_2_2(S390CPU *cpu, __u64 addr, uint8_t ar)
 {
+    CPUS390XState *env = &cpu->env;
     SysIB_322 sysib;
     int del;
 
-    if (s390_cpu_virt_mem_read(cpu, addr, ar, &sysib, sizeof(sysib))) {
-        return;
+    if (env->pv) {
+        s390_cpu_pv_mem_read(cpu, 0, &sysib, sizeof(sysib));
+    } else {
+        if (s390_cpu_virt_mem_read(cpu, addr, ar, &sysib, sizeof(sysib))) {
+            return;
+        }
     }
     /* Shift the stack of Extended Names to prepare for our own data */
     memmove(&sysib.ext_names[1], &sysib.ext_names[0],
@@ -1840,7 +1845,11 @@ static void insert_stsi_3_2_2(S390CPU *cpu, __u64 addr, uint8_t ar)
     /* Insert UUID */
     memcpy(sysib.vm[0].uuid, &qemu_uuid, sizeof(sysib.vm[0].uuid));
 
-    s390_cpu_virt_mem_write(cpu, addr, ar, &sysib, sizeof(sysib));
+    if (env->pv) {
+        s390_cpu_pv_mem_write(cpu, 0, &sysib, sizeof(sysib));
+    } else {
+        s390_cpu_virt_mem_write(cpu, addr, ar, &sysib, sizeof(sysib));
+    }
 }
 
 static int handle_stsi(S390CPU *cpu)
-- 
2.20.1