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From: Olaf Hering <olaf@aepfle.de>
To: Stefano Stabellini <sstabellini@kernel.org>,
	Anthony Perard <anthony.perard@citrix.com>,
	Paul Durrant <paul@xen.org>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Richard Henderson <rth@twiddle.net>,
	Eduardo Habkost <ehabkost@redhat.com>,
	qemu-devel@nongnu.org (open list:All patches CC here)
Cc: Olaf Hering <olaf@aepfle.de>
Subject: [PATCH v2] hw/i386: disable smbus migration for xenfv
Date: Thu, 16 Jan 2020 19:03:21 +0100
Message-ID: <20200116180321.24968-1-olaf@aepfle.de> (raw)
In-Reply-To: <20200113174521.3336-1-olaf@aepfle.de>

With commit 7fccf2a06890e3bc3b30e29827ad3fb93fe88fea a new member
smbus_no_migration_support was added, and enabled in two places.
With commit 4ab2f2a8aabfea95cc53c64e13b3f67960b27fdf the vmstate_acpi
got new elements, which are conditionally filled. As a result, an
incoming migration expected smbus related data unless smbus migration
was disabled for a given MachineClass.

Since commit 7fccf2a06890e3bc3b30e29827ad3fb93fe88fea forgot to handle
xenfv, live migration to receiving hosts using qemu-4.0 and later is broken.

Therefore this patch must be applied to stable-4.x as well.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
---

diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index fa12203079..e19716d0d3 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -952,6 +952,7 @@ static void xenfv_machine_options(MachineClass *m)
     m->desc = "Xen Fully-virtualized PC";
     m->max_cpus = HVM_MAX_VCPUS;
     m->default_machine_opts = "accel=xen";
+    m->smbus_no_migration_support = true;
 }
 
 DEFINE_PC_MACHINE(xenfv, "xenfv", pc_xen_hvm_init,


  parent reply index

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-13 17:45 [PATCH v1] hw/i386: disable smbus migration for xenpv Olaf Hering
2020-01-13 17:46 ` [PATCH v1] hw/i386: disable smbus migration for xenfv Olaf Hering
2020-01-15 13:51 ` [PATCH v1] hw/i386: disable smbus migration for xenpv Michael S. Tsirkin
2020-01-16 18:03 ` Olaf Hering [this message]
2020-01-16 18:26   ` [PATCH v2] hw/i386: disable smbus migration for xenfv Paolo Bonzini
2020-01-16 18:33     ` Olaf Hering
2020-01-16 18:50       ` Paolo Bonzini
2020-01-17  9:22     ` Olaf Hering
2020-01-17 10:27       ` Paolo Bonzini
2020-01-17 13:06         ` Olaf Hering
2020-01-20 11:18           ` Paul Durrant
2020-01-27  9:09             ` Olaf Hering
2020-02-18 17:27               ` Olaf Hering
2020-02-18 17:37                 ` Paolo Bonzini
2020-02-18 18:30                   ` Olaf Hering
2020-02-18 19:44                   ` Olaf Hering
2020-02-19  8:05                     ` Paolo Bonzini
2020-02-19  8:13                       ` Olaf Hering
2020-01-27  9:35             ` Paolo Bonzini
2020-01-27 13:26               ` Olaf Hering
2020-01-27 18:21                 ` Paolo Bonzini
2020-02-19 11:35     ` Olaf Hering
2020-02-19 14:14       ` Olaf Hering
2020-02-20 10:50         ` Paolo Bonzini

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