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S390: IPL: Use different firmware for different machines 

We have a virtio-s390 and a virtio-ccw machine in QEMU. Both use vastly
different ways to do I/O. Having the same firmware blob for both doesn't
really make any sense.

Instead, let's parametrize the firmware file name, so that we can have
different blobs for different machines.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2013-04-22 16:52:53 +02:00
parent 3325995640
commit d0249ce5a8
4 changed files with 11 additions and 6 deletions
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5
hw/s390x/ipl.c
View File

@ -23,7 +23,6 @@
#define INITRD_PARM_START 0x010408UL
#define INITRD_PARM_SIZE 0x010410UL
#define PARMFILE_START 0x001000UL
#define ZIPL_FILENAME "s390-zipl.rom"
#define ZIPL_IMAGE_START 0x009000UL
#define IPL_PSW_MASK (PSW_MASK_32 | PSW_MASK_64)
@ -54,6 +53,7 @@ typedef struct S390IPLState {
char *kernel;
char *initrd;
char *cmdline;
char *firmware;
} S390IPLState;
@ -78,7 +78,7 @@ static int s390_ipl_init(SysBusDevice *dev)
/* Load zipl bootloader */
if (bios_name == NULL) {
bios_name = ZIPL_FILENAME;
bios_name = ipl->firmware;
}
bios_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
@ -144,6 +144,7 @@ static Property s390_ipl_properties[] = {
DEFINE_PROP_STRING("kernel", S390IPLState, kernel),
DEFINE_PROP_STRING("initrd", S390IPLState, initrd),
DEFINE_PROP_STRING("cmdline", S390IPLState, cmdline),
DEFINE_PROP_STRING("firmware", S390IPLState, firmware),
DEFINE_PROP_END_OF_LIST(),
};

2
hw/s390x/s390-virtio-ccw.c
View File

@ -83,7 +83,7 @@ static void ccw_init(QEMUMachineInitArgs *args)
css_bus = virtual_css_bus_init();
s390_sclp_init();
s390_init_ipl_dev(args->kernel_filename, args->kernel_cmdline,
args->initrd_filename);
args->initrd_filename, "s390-zipl.rom");
/* register hypercalls */
virtio_ccw_register_hcalls();

7
hw/s390x/s390-virtio.c
View File

@ -49,6 +49,7 @@
#endif
#define MAX_BLK_DEVS 10
#define ZIPL_FILENAME "s390-zipl.rom"
static VirtIOS390Bus *s390_bus;
static S390CPU **ipi_states;
@ -158,7 +159,8 @@ unsigned s390_del_running_cpu(S390CPU *cpu)
void s390_init_ipl_dev(const char *kernel_filename,
const char *kernel_cmdline,
const char *initrd_filename)
const char *initrd_filename,
const char *firmware)
{
DeviceState *dev;
@ -170,6 +172,7 @@ void s390_init_ipl_dev(const char *kernel_filename,
qdev_prop_set_string(dev, "initrd", initrd_filename);
}
qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
qdev_prop_set_string(dev, "firmware", firmware);
qdev_init_nofail(dev);
}
@ -247,7 +250,7 @@ static void s390_init(QEMUMachineInitArgs *args)
s390_bus = s390_virtio_bus_init(&my_ram_size);
s390_sclp_init();
s390_init_ipl_dev(args->kernel_filename, args->kernel_cmdline,
args->initrd_filename);
args->initrd_filename, ZIPL_FILENAME);
/* register hypercalls */
s390_virtio_register_hcalls();

3
hw/s390x/s390-virtio.h
View File

@ -23,6 +23,7 @@ void s390_register_virtio_hypercall(uint64_t code, s390_virtio_fn fn);
void s390_init_cpus(const char *cpu_model, uint8_t *storage_keys);
void s390_init_ipl_dev(const char *kernel_filename,
const char *kernel_cmdline,
const char *initrd_filename);
const char *initrd_filename,
const char *firmware);
void s390_create_virtio_net(BusState *bus, const char *name);
#endif