[RFC PATCH v2 17/20] hw/pci-host/gpex: Mark device with no migratable fields - Philippe Mathieu-Daudé

From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: "Dr. David Alan Gilbert" <dgilbert@redhat.com>, qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
	"Daniel P. Berrangé" <berrange@redhat.com>,
	"Eduardo Habkost" <ehabkost@redhat.com>,
	"Juan Quintela" <quintela@redhat.com>,
	"Andrew Jeffery" <andrew@aj.id.au>,
	"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
	"Mark Cave-Ayland" <mark.cave-ayland@ilande.co.uk>,
	"Joel Stanley" <joel@jms.id.au>,
	"Andrew Baumann" <Andrew.Baumann@microsoft.com>,
	"Subbaraya Sundeep" <sundeep.lkml@gmail.com>,
	"Laurent Vivier" <laurent@vivier.eu>,
	qemu-arm@nongnu.org, "Cédric Le Goater" <clg@kaod.org>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Artyom Tarasenko" <atar4qemu@gmail.com>,
	"Gerd Hoffmann" <kraxel@redhat.com>
Subject: [RFC PATCH v2 17/20] hw/pci-host/gpex: Mark device with no migratable fields
Date: Sun, 17 Jan 2021 20:24:43 +0100	[thread overview]
Message-ID: <20210117192446.23753-18-f4bug@amsat.org> (raw)
In-Reply-To: <20210117192446.23753-1-f4bug@amsat.org>

TYPE_GPEX_HOST does not have internal state to migrate.
Its only interesting state is in the GPEXRootState, which
is a TYPE_GPEX_ROOT_DEVICE which migrates itself.
Explicit there is nothing to migrate by using the special
vmstate_qdev_no_state_to_migrate.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 hw/pci-host/gpex.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/pci-host/gpex.c b/hw/pci-host/gpex.c
index 2bdbe7b4561..2565dc27ae4 100644
--- a/hw/pci-host/gpex.c
+++ b/hw/pci-host/gpex.c
@@ -115,6 +115,7 @@ static void gpex_host_class_init(ObjectClass *klass, void *data)
 
     hc->root_bus_path = gpex_host_root_bus_path;
     dc->realize = gpex_host_realize;
+    dc->vmsd = vmstate_qdev_no_state_to_migrate;
     set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
     dc->fw_name = "pci";
 }
-- 
2.26.2


