s390x/ipl: Extend S390IPLState to support network boot

Add new field to S390IPLState to store the name of the network boot
loader.
Signed-off-by: NFarhan Ali <alifm@linux.vnet.ibm.com>
Reviewed-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: NThomas Huth <thuth@redhat.com>

hw/s390x/ipl.c

@@ -209,6 +209,7 @@ static Property s390_ipl_properties[] = {
     DEFINE_PROP_STRING("initrd", S390IPLState, initrd),
     DEFINE_PROP_STRING("cmdline", S390IPLState, cmdline),
     DEFINE_PROP_STRING("firmware", S390IPLState, firmware),
+    DEFINE_PROP_STRING("netboot_fw", S390IPLState, netboot_fw),
     DEFINE_PROP_BOOL("enforce_bios", S390IPLState, enforce_bios, false),
     DEFINE_PROP_BOOL("iplbext_migration", S390IPLState, iplbext_migration,
                      true),

hw/s390x/ipl.h

@@ -106,6 +106,7 @@ struct S390IPLState {
     char *initrd;
     char *cmdline;
     char *firmware;
+    char *netboot_fw;
     uint8_t cssid;
     uint8_t ssid;
     uint16_t devno;

hw/s390x/s390-virtio-ccw.c

@@ -116,7 +116,8 @@ static void ccw_init(MachineState *machine)
     /* get a BUS */
     css_bus = virtual_css_bus_init();
     s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline,
-                      machine->initrd_filename, "s390-ccw.img", true);
+                      machine->initrd_filename, "s390-ccw.img",
+                      "s390-netboot.img", true);
     s390_flic_init();
 
     dev = qdev_create(NULL, TYPE_S390_PCI_HOST_BRIDGE);

hw/s390x/s390-virtio.c

@@ -65,6 +65,7 @@ void s390_init_ipl_dev(const char *kernel_filename,
                        const char *kernel_cmdline,
                        const char *initrd_filename,
                        const char *firmware,
+                       const char *netboot_fw,
                        bool enforce_bios)
 {
     Object *new = object_new(TYPE_S390_IPL);
@@ -78,6 +79,7 @@ void s390_init_ipl_dev(const char *kernel_filename,
     }
     qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
     qdev_prop_set_string(dev, "firmware", firmware);
+    qdev_prop_set_string(dev, "netboot_fw", netboot_fw);
     qdev_prop_set_bit(dev, "enforce_bios", enforce_bios);
     object_property_add_child(qdev_get_machine(), TYPE_S390_IPL,
                               new, NULL);

hw/s390x/s390-virtio.h

@@ -24,6 +24,7 @@ void s390_init_ipl_dev(const char *kernel_filename,
                        const char *kernel_cmdline,
                        const char *initrd_filename,
                        const char *firmware,
+                       const char *netboot_fw,
                        bool enforce_bios);
 void s390_create_virtio_net(BusState *bus, const char *name);
 void s390_nmi(NMIState *n, int cpu_index, Error **errp);