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From 0ba8d4ea1cc34230356cc446dfa8d1cb52cbd2f3 Mon Sep 17 00:00:00 2001
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From: Thomas Huth <thuth@redhat.com>
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Date: Fri, 29 May 2020 05:54:05 -0400
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Subject: [PATCH 23/42] s390x: protvirt: Add migration blocker
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RH-Author: Thomas Huth <thuth@redhat.com>
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Message-id: <20200529055420.16855-24-thuth@redhat.com>
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Patchwork-id: 97043
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O-Subject: [RHEL-8.3.0 qemu-kvm PATCH v2 23/38] s390x: protvirt: Add migration blocker
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Bugzilla: 1828317
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RH-Acked-by: Claudio Imbrenda <cimbrend@redhat.com>
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RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
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RH-Acked-by: David Hildenbrand <david@redhat.com>
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From: Janosch Frank <frankja@linux.ibm.com>
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Migration is not yet supported.
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Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
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Reviewed-by: David Hildenbrand <david@redhat.com>
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Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
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Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
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Reviewed-by: Cornelia Huck <cohuck@redhat.com>
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Message-Id: <20200319131921.2367-5-frankja@linux.ibm.com>
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Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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(cherry picked from commit 0141e1b47707d90f5bd9d252da064ebdaca698a6)
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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hw/s390x/s390-virtio-ccw.c | 18 ++++++++++++++++++
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1 file changed, 18 insertions(+)
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diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
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index 82da1d9ab5..dbd5125232 100644
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--- a/hw/s390x/s390-virtio-ccw.c
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+++ b/hw/s390x/s390-virtio-ccw.c
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@@ -44,6 +44,9 @@
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#include "sysemu/sysemu.h"
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#include "hw/s390x/pv.h"
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#include <linux/kvm.h>
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+#include "migration/blocker.h"
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+
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+static Error *pv_mig_blocker;
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S390CPU *s390_cpu_addr2state(uint16_t cpu_addr)
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{
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@@ -325,15 +328,30 @@ static void s390_machine_unprotect(S390CcwMachineState *ms)
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{
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s390_pv_vm_disable();
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ms->pv = false;
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+ migrate_del_blocker(pv_mig_blocker);
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+ error_free_or_abort(&pv_mig_blocker);
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}
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static int s390_machine_protect(S390CcwMachineState *ms)
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{
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+ Error *local_err = NULL;
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int rc;
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+ error_setg(&pv_mig_blocker,
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+ "protected VMs are currently not migrateable.");
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+ rc = migrate_add_blocker(pv_mig_blocker, &local_err);
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+ if (rc) {
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+ error_report_err(local_err);
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+ error_free_or_abort(&pv_mig_blocker);
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+ return rc;
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+ }
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+
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/* Create SE VM */
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rc = s390_pv_vm_enable();
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if (rc) {
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+ error_report_err(local_err);
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+ migrate_del_blocker(pv_mig_blocker);
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+ error_free_or_abort(&pv_mig_blocker);
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return rc;
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}
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--
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2.27.0
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