[Qemu-devel] [PATCH 16/23] Port PCI Bus to VMState design

[Juan Quintela]

This uses VARRAY and INT32_EQUAL values

Signed-off-by: Juan Quintela <address@hidden>
---
 hw/pci.c |   41 +++++++++++------------------------------
 1 files changed, 11 insertions(+), 30 deletions(-)

diff --git a/hw/pci.c b/hw/pci.c
index 27eac04..681b9d2 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -73,36 +73,17 @@ static uint16_t pci_default_sub_vendor_id = 
PCI_SUBVENDOR_ID_REDHAT_QUMRANET;
 static uint16_t pci_default_sub_device_id = PCI_SUBDEVICE_ID_QEMU;
 static PCIBus *first_bus;

-static void pcibus_save(QEMUFile *f, void *opaque)
-{
-    PCIBus *bus = (PCIBus *)opaque;
-    int i;
-
-    qemu_put_be32(f, bus->nirq);
-    for (i = 0; i < bus->nirq; i++)
-        qemu_put_be32(f, bus->irq_count[i]);
-}
-
-static int  pcibus_load(QEMUFile *f, void *opaque, int version_id)
-{
-    PCIBus *bus = (PCIBus *)opaque;
-    int i, nirq;
-
-    if (version_id != 1)
-        return -EINVAL;
-
-    nirq = qemu_get_be32(f);
-    if (bus->nirq != nirq) {
-        fprintf(stderr, "pcibus_load: nirq mismatch: src=%d dst=%d\n",
-                nirq, bus->nirq);
-        return -EINVAL;
+static const VMStateDescription vmstate_pcibus = {
+    .name = "PCIBUS",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .minimum_version_id_old = 1,
+    .fields      = (VMStateField []) {
+        VMSTATE_INT32_EQUAL(nirq, PCIBus),
+        VMSTATE_INT32_VARRAY(irq_count, PCIBus, nirq),
+        VMSTATE_END_OF_LIST()
     }
-
-    for (i = 0; i < nirq; i++)
-        bus->irq_count[i] = qemu_get_be32(f);
-
-    return 0;
-}
+};

 static void pci_bus_reset(void *opaque)
 {
@@ -135,7 +116,7 @@ PCIBus *pci_register_bus(DeviceState *parent, const char 
*name,
     bus->irq_count = qemu_mallocz(nirq * sizeof(bus->irq_count[0]));
     bus->next = first_bus;
     first_bus = bus;
-    register_savevm("PCIBUS", nbus++, 1, pcibus_save, pcibus_load, bus);
+    vmstate_register(nbus++, &vmstate_pcibus, bus);
     qemu_register_reset(pci_bus_reset, bus);
     return bus;
 }
-- 
1.6.2.5