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[PATCH v4 2/5] s390x: switch pv and subsystem reset ordering on reboot


From: Steffen Eiden
Subject: [PATCH v4 2/5] s390x: switch pv and subsystem reset ordering on reboot
Date: Wed, 23 Aug 2023 16:22:16 +0200

From: Janosch Frank <frankja@linux.ibm.com>

Bound APQNs have to be reset before tearing down the secure config via
s390_machine_unprotect(). Otherwise the Ultravisor will return a error
code.

So let's switch the ordering around to make that happen.

Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
---
 hw/s390x/s390-virtio-ccw.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 4b36c9970e..795dd53d68 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -442,13 +442,13 @@ static void s390_machine_reset(MachineState *machine, 
ShutdownCause reason)
     switch (reset_type) {
     case S390_RESET_EXTERNAL:
     case S390_RESET_REIPL:
+        qemu_devices_reset(reason);
+        s390_crypto_reset();
+
         if (s390_is_pv()) {
             s390_machine_unprotect(ms);
         }
 
-        qemu_devices_reset(reason);
-        s390_crypto_reset();
-
         /* configure and start the ipl CPU only */
         run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL);
         break;
-- 
2.41.0




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