From b81b948ecc8659d78066f374c787ed12379d21dd Mon Sep 17 00:00:00 2001 From: "Dr. David Alan Gilbert" Date: Mon, 25 Sep 2017 17:05:17 +0100 Subject: virtio/pci/migration: Convert to VMState Convert the 'modern_state' part of virtio-pci to modern migration macros. Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/virtio/virtio-pci.c | 108 +++++++++++++------------------------------------ 1 file changed, 27 insertions(+), 81 deletions(-) (limited to 'hw/virtio') diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index 8b0d6b69cd..f825a68a84 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -88,77 +88,19 @@ static void virtio_pci_save_config(DeviceState *d, QEMUFile *f) qemu_put_be16(f, vdev->config_vector); } -static void virtio_pci_load_modern_queue_state(VirtIOPCIQueue *vq, - QEMUFile *f) -{ - vq->num = qemu_get_be16(f); - vq->enabled = qemu_get_be16(f); - vq->desc[0] = qemu_get_be32(f); - vq->desc[1] = qemu_get_be32(f); - vq->avail[0] = qemu_get_be32(f); - vq->avail[1] = qemu_get_be32(f); - vq->used[0] = qemu_get_be32(f); - vq->used[1] = qemu_get_be32(f); -} - -static bool virtio_pci_has_extra_state(DeviceState *d) -{ - VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); - - return proxy->flags & VIRTIO_PCI_FLAG_MIGRATE_EXTRA; -} - -static int get_virtio_pci_modern_state(QEMUFile *f, void *pv, size_t size, - VMStateField *field) -{ - VirtIOPCIProxy *proxy = pv; - int i; - - proxy->dfselect = qemu_get_be32(f); - proxy->gfselect = qemu_get_be32(f); - proxy->guest_features[0] = qemu_get_be32(f); - proxy->guest_features[1] = qemu_get_be32(f); - for (i = 0; i < VIRTIO_QUEUE_MAX; i++) { - virtio_pci_load_modern_queue_state(&proxy->vqs[i], f); - } - - return 0; -} - -static void virtio_pci_save_modern_queue_state(VirtIOPCIQueue *vq, - QEMUFile *f) -{ - qemu_put_be16(f, vq->num); - qemu_put_be16(f, vq->enabled); - qemu_put_be32(f, vq->desc[0]); - qemu_put_be32(f, vq->desc[1]); - qemu_put_be32(f, vq->avail[0]); - qemu_put_be32(f, vq->avail[1]); - qemu_put_be32(f, vq->used[0]); - qemu_put_be32(f, vq->used[1]); -} - -static int put_virtio_pci_modern_state(QEMUFile *f, void *pv, size_t size, - VMStateField *field, QJSON *vmdesc) -{ - VirtIOPCIProxy *proxy = pv; - int i; - - qemu_put_be32(f, proxy->dfselect); - qemu_put_be32(f, proxy->gfselect); - qemu_put_be32(f, proxy->guest_features[0]); - qemu_put_be32(f, proxy->guest_features[1]); - for (i = 0; i < VIRTIO_QUEUE_MAX; i++) { - virtio_pci_save_modern_queue_state(&proxy->vqs[i], f); +static const VMStateDescription vmstate_virtio_pci_modern_queue_state = { + .name = "virtio_pci/modern_queue_state", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT16(num, VirtIOPCIQueue), + VMSTATE_UNUSED(1), /* enabled was stored as be16 */ + VMSTATE_BOOL(enabled, VirtIOPCIQueue), + VMSTATE_UINT32_ARRAY(desc, VirtIOPCIQueue, 2), + VMSTATE_UINT32_ARRAY(avail, VirtIOPCIQueue, 2), + VMSTATE_UINT32_ARRAY(used, VirtIOPCIQueue, 2), + VMSTATE_END_OF_LIST() } - - return 0; -} - -static const VMStateInfo vmstate_info_virtio_pci_modern_state = { - .name = "virtqueue_state", - .get = get_virtio_pci_modern_state, - .put = put_virtio_pci_modern_state, }; static bool virtio_pci_modern_state_needed(void *opaque) @@ -168,21 +110,18 @@ static bool virtio_pci_modern_state_needed(void *opaque) return virtio_pci_modern(proxy); } -static const VMStateDescription vmstate_virtio_pci_modern_state = { +static const VMStateDescription vmstate_virtio_pci_modern_state_sub = { .name = "virtio_pci/modern_state", .version_id = 1, .minimum_version_id = 1, .needed = &virtio_pci_modern_state_needed, .fields = (VMStateField[]) { - { - .name = "modern_state", - .version_id = 0, - .field_exists = NULL, - .size = 0, - .info = &vmstate_info_virtio_pci_modern_state, - .flags = VMS_SINGLE, - .offset = 0, - }, + VMSTATE_UINT32(dfselect, VirtIOPCIProxy), + VMSTATE_UINT32(gfselect, VirtIOPCIProxy), + VMSTATE_UINT32_ARRAY(guest_features, VirtIOPCIProxy, 2), + VMSTATE_STRUCT_ARRAY(vqs, VirtIOPCIProxy, VIRTIO_QUEUE_MAX, 0, + vmstate_virtio_pci_modern_queue_state, + VirtIOPCIQueue), VMSTATE_END_OF_LIST() } }; @@ -196,11 +135,18 @@ static const VMStateDescription vmstate_virtio_pci = { VMSTATE_END_OF_LIST() }, .subsections = (const VMStateDescription*[]) { - &vmstate_virtio_pci_modern_state, + &vmstate_virtio_pci_modern_state_sub, NULL } }; +static bool virtio_pci_has_extra_state(DeviceState *d) +{ + VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); + + return proxy->flags & VIRTIO_PCI_FLAG_MIGRATE_EXTRA; +} + static void virtio_pci_save_extra_state(DeviceState *d, QEMUFile *f) { VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); -- cgit v1.2.3