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[Qemu-devel] [RFC 2/5] vfio: Add struct vfio_vmstate_info to introduce v
From: |
Yulei Zhang |
Subject: |
[Qemu-devel] [RFC 2/5] vfio: Add struct vfio_vmstate_info to introduce vfio device put/get funtion |
Date: |
Mon, 26 Jun 2017 08:52:59 -0000 |
Introduce vfio_device_put/vfio_device_get funtion for vfio device state
save/restore usage. And vfio device unmigratable flag will be set to false
during initialization if device flag VFIO_DEVICE_FLAGS_MIGRATABLE is set.
Signed-off-by: Yulei Zhang <address@hidden>
---
hw/vfio/pci.c | 35 ++++++++++++++++++++++++++++++++++-
1 file changed, 34 insertions(+), 1 deletion(-)
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index bf2e0ff..7de4eb4 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -37,6 +37,7 @@
static void vfio_disable_interrupts(VFIOPCIDevice *vdev);
static void vfio_mmap_set_enabled(VFIOPCIDevice *vdev, bool enabled);
+static VMStateDescription vfio_pci_vmstate;
/*
* Disabling BAR mmaping can be slow, but toggling it around INTx can
@@ -2375,6 +2376,7 @@ static void vfio_populate_device(VFIOPCIDevice *vdev,
Error **errp)
}
QLIST_INIT(&vdev->device_state.quirks);
+ vfio_pci_vmstate.unmigratable = 0;
}
ret = vfio_get_region_info(vbasedev,
@@ -2946,6 +2948,17 @@ post_reset:
vfio_pci_post_reset(vdev);
}
+static int vfio_device_put(QEMUFile *f, void *pv, size_t size, VMStateField
*field,
+ QJSON *vmdesc)
+{
+ return 0;
+}
+
+static int vfio_device_get(QEMUFile *f, void *pv, size_t size, VMStateField
*field)
+{
+ return 0;
+}
+
static void vfio_instance_init(Object *obj)
{
PCIDevice *pci_dev = PCI_DEVICE(obj);
@@ -2990,9 +3003,29 @@ static Property vfio_pci_dev_properties[] = {
DEFINE_PROP_END_OF_LIST(),
};
-static const VMStateDescription vfio_pci_vmstate = {
+static VMStateInfo vfio_vmstate_info = {
+ .name = "vfio-state",
+ .get = vfio_device_get,
+ .put = vfio_device_put,
+};
+
+static VMStateDescription vfio_pci_vmstate = {
.name = "vfio-pci",
.unmigratable = 1,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ {
+ .name = "vfio dev",
+ .version_id = 0,
+ .field_exists = NULL,
+ .size = 0,
+ .info = &vfio_vmstate_info,
+ .flags = VMS_SINGLE,
+ .offset = 0,
+ },
+ VMSTATE_END_OF_LIST()
+ },
};
static void vfio_pci_dev_class_init(ObjectClass *klass, void *data)
--
2.7.4
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