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From 1f0ccebc1a1ed974fe13841c06742f52589c6064 Mon Sep 17 00:00:00 2001
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From: "plai@redhat.com" <plai@redhat.com>
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Date: Mon, 7 Jan 2019 17:02:21 +0000
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Subject: [PATCH 20/22] migration/ram: Add check and info message to nvdimm
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post copy.
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RH-Author: plai@redhat.com
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Message-id: <1546880543-24860-9-git-send-email-plai@redhat.com>
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Patchwork-id: 83891
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O-Subject: [RHEL8.0 qemu-kvm PATCH v7 08/10] migration/ram: Add check and info message to nvdimm post copy.
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Bugzilla: 1539285
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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RH-Acked-by: Eduardo Habkost <ehabkost@redhat.com>
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From: Junyan He <junyan.he@intel.com>
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The nvdimm kind memory does not support post copy now.
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We disable post copy if we have nvdimm memory and print some
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log hint to user.
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Signed-off-by: Junyan He <junyan.he@intel.com>
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Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
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Reviewed-by: Igor Mammedov <imammedo@redhat.com>
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Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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(cherry picked from commit 469dd51bc664979f159d47885997d482991394b8)
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Signed-off-by: Paul Lai <plai@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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migration/ram.c | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/migration/ram.c b/migration/ram.c
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index 04b5df5..f850fd0 100644
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--- a/migration/ram.c
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+++ b/migration/ram.c
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@@ -3120,6 +3120,15 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id)
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static bool ram_has_postcopy(void *opaque)
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{
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+ RAMBlock *rb;
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+ RAMBLOCK_FOREACH_MIGRATABLE(rb) {
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+ if (ramblock_is_pmem(rb)) {
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+ info_report("Block: %s, host: %p is a nvdimm memory, postcopy"
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+ "is not supported now!", rb->idstr, rb->host);
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+ return false;
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+ }
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+ }
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+
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return migrate_postcopy_ram();
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}
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--
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1.8.3.1
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