From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50589) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1arASf-0000wT-0w for qemu-devel@nongnu.org; Fri, 15 Apr 2016 16:35:33 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1arASa-00010c-91 for qemu-devel@nongnu.org; Fri, 15 Apr 2016 16:35:28 -0400 Received: from e19.ny.us.ibm.com ([129.33.205.209]:36622) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1arASa-00010Q-6G for qemu-devel@nongnu.org; Fri, 15 Apr 2016 16:35:24 -0400 Received: from localhost by e19.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 15 Apr 2016 16:35:24 -0400 From: Jianjun Duan Date: Fri, 15 Apr 2016 13:33:02 -0700 Message-Id: <1460752385-13259-3-git-send-email-duanj@linux.vnet.ibm.com> In-Reply-To: <1460752385-13259-1-git-send-email-duanj@linux.vnet.ibm.com> References: <1460752385-13259-1-git-send-email-duanj@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH 2/5] Migration: Defined VMStateDescription struct for spapr_drc List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, mdroth@linux.vnet.ibm.com, david@gibson.dropbear.id.au, Jianjun Duan To manage hotplug/unplug of dynamic resources such as PCI cards, memory, and CPU on sPAPR guests, a firmware abstraction known as a Dynamic Resource Connector (DRC) is used to assign a particular dynamic resource to the guest, and provide an interface for the guest to manage configuration/removal of the resource associated with it. To migrate the hotplugged resources in migration, the associated DRC state need be migrated. To migrate the DRC state, we defined the VMStateDescription struct for spapr_drc to enable the transmission of spapr_drc state in migration. Not all the elements in the DRC state are migrated. Only those ones modifiable by guest actions or device add/remove operation are migrated. Signed-off-by: Jianjun Duan --- hw/ppc/spapr_drc.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/hw/ppc/spapr_drc.c b/hw/ppc/spapr_drc.c index 3173940..5f7a25f 100644 --- a/hw/ppc/spapr_drc.c +++ b/hw/ppc/spapr_drc.c @@ -610,6 +610,20 @@ static void spapr_dr_connector_instance_init(Object *obj) NULL, NULL, NULL, NULL); } +static const VMStateDescription vmstate_spapr_drc = { + .name = "spapr_drc", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField []) { + VMSTATE_UINT32(isolation_state, sPAPRDRConnector), + VMSTATE_UINT32(allocation_state, sPAPRDRConnector), + VMSTATE_UINT32(indicator_state, sPAPRDRConnector), + VMSTATE_BOOL(configured, sPAPRDRConnector), + VMSTATE_BOOL(awaiting_release, sPAPRDRConnector), + VMSTATE_END_OF_LIST() + } +}; + static void spapr_dr_connector_class_init(ObjectClass *k, void *data) { DeviceClass *dk = DEVICE_CLASS(k); @@ -618,6 +632,7 @@ static void spapr_dr_connector_class_init(ObjectClass *k, void *data) dk->reset = reset; dk->realize = realize; dk->unrealize = unrealize; + dk->vmsd = &vmstate_spapr_drc; drck->set_isolation_state = set_isolation_state; drck->set_indicator_state = set_indicator_state; drck->set_allocation_state = set_allocation_state; -- 1.9.1