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From: David Hildenbrand <david@redhat.com>
To: qemu-s390x@nongnu.org
Cc: qemu-devel@nongnu.org, Richard Henderson <rth@twiddle.net>,
	Alexander Graf <agraf@suse.de>, Cornelia Huck <cohuck@redhat.com>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Thomas Huth <thuth@redhat.com>,
	"Jason J . Herne" <jjherne@linux.ibm.com>,
	"Collin L . Walling" <walling@linux.ibm.com>,
	david@redhat.com
Subject: [Qemu-devel] [PATCH v1 6/7] s390x/tcg: rearm the CKC timer during migration
Date: Fri, 25 May 2018 13:37:07 +0200	[thread overview]
Message-ID: <20180525113708.29856-7-david@redhat.com> (raw)
In-Reply-To: <20180525113708.29856-1-david@redhat.com>

If the CPU data is migrated after the TOD clock, the CKC timer of a CPU
is not rearmed. Let's rearm it when loading the CPU state.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 target/s390x/machine.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/target/s390x/machine.c b/target/s390x/machine.c
index 84b4928755..53d226ff48 100644
--- a/target/s390x/machine.c
+++ b/target/s390x/machine.c
@@ -34,6 +34,13 @@ static int cpu_post_load(void *opaque, int version_id)
         return kvm_s390_vcpu_interrupt_post_load(cpu);
     }
 
+#ifdef CONFIG_TCG
+    if (tcg_enabled()) {
+        /* Rearm the CKC timer if necessary */
+        tcg_s390_tod_updated(CPU(cpu), RUN_ON_CPU_NULL);
+    }
+#endif
+
     return 0;
 }
 
-- 
2.17.0

  parent reply	other threads:[~2018-05-25 11:37 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-25 11:37 [Qemu-devel] [PATCH v1 0/7] s390x: TOD refactoring + TCG CPU hotplug support David Hildenbrand
2018-05-25 11:37 ` [Qemu-devel] [PATCH v1 1/7] s390x/tod: factor out TOD into separate device David Hildenbrand
2018-06-04 11:38   ` Cornelia Huck
2018-06-04 12:00     ` David Hildenbrand
2018-06-04 12:14       ` Cornelia Huck
2018-06-07 10:49         ` [Qemu-devel] [qemu-s390x] " David Hildenbrand
2018-06-07 11:10           ` Cornelia Huck
2018-05-25 11:37 ` [Qemu-devel] [PATCH v1 2/7] s390x/tcg: drop tod_basetime David Hildenbrand
2018-05-25 11:37 ` [Qemu-devel] [PATCH v1 3/7] s390x/tcg: properly implement the TOD David Hildenbrand
2018-06-04 11:57   ` Cornelia Huck
2018-06-04 11:59     ` David Hildenbrand
2018-05-25 11:37 ` [Qemu-devel] [PATCH v1 4/7] s390x/tcg: SET CLOCK COMPARATOR can clear CKC interrupts David Hildenbrand
2018-05-25 11:37 ` [Qemu-devel] [PATCH v1 5/7] s390x/tcg: implement SET CLOCK David Hildenbrand
2018-06-04 12:05   ` Cornelia Huck
2018-06-07 10:48     ` [Qemu-devel] [qemu-s390x] " David Hildenbrand
2018-06-07 11:15       ` Cornelia Huck
2018-05-25 11:37 ` David Hildenbrand [this message]
2018-06-04 12:09   ` [Qemu-devel] [PATCH v1 6/7] s390x/tcg: rearm the CKC timer during migration Cornelia Huck
2018-06-07 10:47     ` [Qemu-devel] [qemu-s390x] " David Hildenbrand
2018-05-25 11:37 ` [Qemu-devel] [PATCH v1 7/7] s390x/tcg: fix CPU hotplug with single-threaded TCG David Hildenbrand

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