/*
* bootloader support
*
* Copyright IBM, Corp. 2012, 2020
*
* Authors:
* Christian Borntraeger <borntraeger@de.ibm.com>
* Janosch Frank <frankja@linux.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at your
* option) any later version. See the COPYING file in the top-level directory.
*
*/
#include "qemu/osdep.h"
#include "qemu/datadir.h"
#include "qapi/error.h"
#include "sysemu/reset.h"
#include "sysemu/runstate.h"
#include "sysemu/tcg.h"
#include "elf.h"
#include "hw/loader.h"
#include "hw/qdev-properties.h"
#include "hw/boards.h"
#include "hw/s390x/virtio-ccw.h"
#include "hw/s390x/vfio-ccw.h"
#include "hw/s390x/css.h"
#include "hw/s390x/ebcdic.h"
#include "target/s390x/kvm/pv.h"
#include "hw/scsi/scsi.h"
#include "hw/virtio/virtio-net.h"
#include "ipl.h"
#include "qemu/error-report.h"
#include "qemu/config-file.h"
#include "qemu/cutils.h"
#include "qemu/option.h"
#include "qemu/ctype.h"
#include "standard-headers/linux/virtio_ids.h"
#define KERN_IMAGE_START 0x010000UL
#define LINUX_MAGIC_ADDR 0x010008UL
#define KERN_PARM_AREA_SIZE_ADDR 0x010430UL
#define KERN_PARM_AREA 0x010480UL
#define LEGACY_KERN_PARM_AREA_SIZE 0x000380UL
#define INITRD_START 0x800000UL
#define INITRD_PARM_START 0x010408UL
#define PARMFILE_START 0x001000UL
#define ZIPL_IMAGE_START 0x009000UL
#define BIOS_MAX_SIZE 0x300000UL
#define IPL_PSW_MASK (PSW_MASK_32 | PSW_MASK_64)
static bool iplb_extended_needed(void *opaque)
{
S390IPLState *ipl = S390_IPL(object_resolve_path(TYPE_S390_IPL, NULL));
return ipl->iplbext_migration;
}
/* Place the IPLB chain immediately before the BIOS in memory */
static uint64_t find_iplb_chain_addr(uint64_t bios_addr, uint16_t count)
{
return (bios_addr & TARGET_PAGE_MASK)
- (count * sizeof(IplParameterBlock));
}
static const VMStateDescription vmstate_iplb_extended = {
.name = "ipl/iplb_extended",
.version_id = 0,
.minimum_version_id = 0,
.needed = iplb_extended_needed,
.fields = (const VMStateField[]) {
VMSTATE_UINT8_ARRAY(reserved_ext, IplParameterBlock, 4096 - 200),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_iplb = {
.name = "ipl/iplb",
.version_id = 0,
.minimum_version_id = 0,
.fields = (const VMStateField[]) {
VMSTATE_UINT8_ARRAY(reserved1, IplParameterBlock, 110),
VMSTATE_UINT16(devno, IplParameterBlock),
VMSTATE_UINT8_ARRAY(reserved2, IplParameterBlock, 88),
VMSTATE_END_OF_LIST()
},
.subsections = (const VMStateDescription * const []) {
&vmstate_iplb_extended,
NULL
}
};
static const VMStateDescription vmstate_ipl = {
.name = "ipl",
.version_id = 0,
.minimum_version_id = 0,
.fields = (const VMStateField[]) {
VMSTATE_UINT64(compat_start_addr, S390IPLState),
VMSTATE_UINT64(compat_bios_start_addr, S390IPLState),
VMSTATE_STRUCT(iplb, S390IPLState, 0, vmstate_iplb, IplParameterBlock),
VMSTATE_BOOL(iplb_valid, S390IPLState),
VMSTATE_UINT8(cssid, S390IPLState),
VMSTATE_UINT8(ssid, S390IPLState),
VMSTATE_UINT16(devno, S390IPLState),
VMSTATE_END_OF_LIST()
}
};
static S390IPLState *get_ipl_device(void)
{
return S390_IPL(object_resolve_path_type("", TYPE_S390_IPL, NULL));
}
static uint64_t bios_translate_addr(void *opaque, uint64_t srcaddr)
{
uint64_t dstaddr = *(uint64_t *) opaque;
/*
* Assuming that our s390-ccw.img was linked for starting at address 0,
* we can simply add the destination address for the final location
*/
return srcaddr + dstaddr;
}
static uint64_t get_max_kernel_cmdline_size(void)
{
uint64_t *size_ptr = rom_ptr(KERN_PARM_AREA_SIZE_ADDR, sizeof(*size_ptr));
if (size_ptr) {
uint64_t size;
size = be64_to_cpu(*size_ptr);
if (size) {
return size;
}
}
return LEGACY_KERN_PARM_AREA_SIZE;
}
static void s390_ipl_realize(DeviceState *dev, Error **errp)
{
MachineState *ms = MACHINE(qdev_get_machine());
S390IPLState *ipl = S390_IPL(dev);
uint32_t *ipl_psw;
uint64_t pentry;
char *magic;
int kernel_size;
int bios_size;
char *bios_filename;
/*
* Always load the bios if it was enforced,
* even if an external kernel has been defined.
*/
if (!ipl->kernel || ipl->enforce_bios) {
uint64_t fwbase;
if (ms->ram_size < BIOS_MAX_SIZE) {
error_setg(errp, "not enough RAM to load the BIOS file");
return;
}
fwbase = (MIN(ms->ram_size, 0x80000000U) - BIOS_MAX_SIZE) & ~0xffffUL;
bios_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, ipl->firmware);
if (bios_filename == NULL) {
error_setg(errp, "could not find stage1 bootloader");
return;
}
bios_size = load_elf(bios_filename, NULL,
bios_translate_addr, &fwbase,
&ipl->bios_start_addr, NULL, NULL, NULL, 1,
EM_S390, 0, 0);
if (bios_size > 0) {
/* Adjust ELF start address to final location */
ipl->bios_start_addr += fwbase;
} else {
/* Try to load non-ELF file */
bios_size = load_image_targphys(bios_filename, ZIPL_IMAGE_START,
4096);
ipl->bios_start_addr = ZIPL_IMAGE_START;
}
g_free(bios_filename);
if (bios_size == -1) {
error_setg(errp, "could not load bootloader '%s'", ipl->firmware);
return;
}
/* default boot target is the bios */
ipl->start_addr = ipl->bios_start_addr;
}
if (ipl->kernel) {
kernel_size = load_elf(ipl->kernel, NULL, NULL, NULL,
&pentry, NULL,
NULL, NULL, 1, EM_S390, 0, 0);
if (kernel_size < 0) {
kernel_size = load_image_targphys(ipl->kernel, 0, ms->ram_size);
if (kernel_size < 0) {
error_setg(errp, "could not load kernel '%s'", ipl->kernel);
return;
}
/* if this is Linux use KERN_IMAGE_START */
magic = rom_ptr(LINUX_MAGIC_ADDR, 6);
if (magic && !memcmp(magic, "S390EP", 6)) {
pentry = KERN_IMAGE_START;
} else {
/* if not Linux load the address of the (short) IPL PSW */
ipl_psw = rom_ptr(4, 4);
if (ipl_psw) {
pentry = be32_to_cpu(*ipl_psw) & PSW_MASK_SHORT_ADDR;
} else {
error_setg(errp, "Could not get IPL PSW");
return;
}
}
}
/*
* Is it a Linux kernel (starting at 0x10000)? If yes, we fill in the
* kernel parameters here as well. Note: For old kernels (up to 3.2)
* we can not rely on the ELF entry point - it was 0x800 (the SALIPL
* loader) and it won't work. For this case we force it to 0x10000, too.
*/
if (pentry == KERN_IMAGE_START || pentry == 0x800) {
size_t cmdline_size = strlen(ipl->cmdline) + 1;
char *parm_area = rom_ptr(KERN_PARM_AREA, cmdline_size);
ipl->start_addr = KERN_IMAGE_START;
/* Overwrite parameters in the kernel image, which are "rom" */
if (parm_area) {
uint64_t max_cmdline_size = get_max_kernel_cmdline_size();
if (cmdline_size > max_cmdline_size) {
error_setg(errp,
"kernel command line exceeds maximum size:"
" %zu > %" PRIu64,
cmdline_size, max_cmdline_size);
return;
}
strcpy(parm_area, ipl->cmdline);
}
} else {
ipl->start_addr = pentry;
}
if (ipl->initrd) {
ram_addr_t initrd_offset;
int initrd_size;
uint64_t *romptr;
initrd_offset = INITRD_START;
while (kernel_size + 0x100000 > initrd_offset) {
initrd_offset += 0x100000;
}
initrd_size = load_image_targphys(ipl->initrd, initrd_offset,
ms->ram_size - initrd_offset);
if (initrd_size == -1) {
error_setg(errp, "could not load initrd '%s'", ipl->initrd);
return;
}
/*
* we have to overwrite values in the kernel image,
* which are "rom"
*/
romptr = rom_ptr(INITRD_PARM_START, 16);
if (romptr) {
stq_be_p(romptr, initrd_offset);
stq_be_p(romptr + 1, initrd_size);
}
}
}
/*
* Don't ever use the migrated values, they could come from a different
* BIOS and therefore don't work. But still migrate the values, so
* QEMUs relying on it don't break.
*/
ipl->compat_start_addr = ipl->start_addr;
ipl->compat_bios_start_addr = ipl->bios_start_addr;
/*
* Because this Device is not on any bus in the qbus tree (it is
* not a sysbus device and it's not on some other bus like a PCI
* bus) it will not be automatically reset by the 'reset the
* sysbus' hook registered by vl.c like most devices. So we must
* manually register a reset hook for it.
* TODO: there should be a better way to do this.
*/
qemu_register_reset(resettable_cold_reset_fn, dev);
}
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_BOOL("enforce_bios", S390IPLState, enforce_bios, false),
DEFINE_PROP_BOOL("iplbext_migration", S390IPLState, iplbext_migration,
true),
DEFINE_PROP_END_OF_LIST(),
};
static void s390_ipl_set_boot_menu(S390IPLState *ipl)
{
unsigned long splash_time = 0;
if (!get_boot_device(0)) {
if (current_machine->boot_config.has_menu && current_machine->boot_config.menu) {
error_report("boot menu requires a bootindex to be specified for "
"the IPL device");
}
return;
}
switch (ipl->iplb.pbt) {
case S390_IPL_TYPE_CCW:
/* In the absence of -boot menu, use zipl parameters */
if (!current_machine->boot_config.has_menu) {
ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_ZIPL;
return;
}
break;
case S390_IPL_TYPE_QEMU_SCSI:
break;
default:
if (current_machine->boot_config.has_menu && current_machine->boot_config.menu) {
error_report("boot menu is not supported for this device type");
}
return;
}
if (!current_machine->boot_config.has_menu || !current_machine->boot_config.menu) {
return;
}
ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_CMD;
if (current_machine->boot_config.has_splash_time) {
splash_time = current_machine->boot_config.splash_time;
}
if (splash_time > 0xffffffff) {
error_report("splash-time is too large, forcing it to max value");
ipl->qipl.boot_menu_timeout = 0xffffffff;
return;
}
ipl->qipl.boot_menu_timeout = cpu_to_be32(splash_time);
}
#define CCW_DEVTYPE_NONE 0x00
#define CCW_DEVTYPE_VIRTIO 0x01
#define CCW_DEVTYPE_VIRTIO_NET 0x02
#define CCW_DEVTYPE_SCSI 0x03
#define CCW_DEVTYPE_VFIO 0x04
static CcwDevice *s390_get_ccw_device(DeviceState *dev_st, int *devtype)
{
CcwDevice *ccw_dev = NULL;
int tmp_dt = CCW_DEVTYPE_NONE;
if (dev_st) {
VirtIONet *virtio_net_dev = (VirtIONet *)
object_dynamic_cast(OBJECT(dev_st), TYPE_VIRTIO_NET);
VirtioCcwDevice *virtio_ccw_dev = (VirtioCcwDevice *)
object_dynamic_cast(OBJECT(qdev_get_parent_bus(dev_st)->parent),
TYPE_VIRTIO_CCW_DEVICE);
VFIOCCWDevice *vfio_ccw_dev = (VFIOCCWDevice *)
object_dynamic_cast(OBJECT(dev_st), TYPE_VFIO_CCW);
if (virtio_ccw_dev) {
ccw_dev = CCW_DEVICE(virtio_ccw_dev);
if (virtio_net_dev) {
tmp_dt = CCW_DEVTYPE_VIRTIO_NET;
} else {
tmp_dt = CCW_DEVTYPE_VIRTIO;
}
} else if (vfio_ccw_dev) {
ccw_dev = CCW_DEVICE(vfio_ccw_dev);
tmp_dt = CCW_DEVTYPE_VFIO;
} else {
SCSIDevice *sd = (SCSIDevice *)
object_dynamic_cast(OBJECT(dev_st),
TYPE_SCSI_DEVICE);
if (sd) {
SCSIBus *sbus = scsi_bus_from_device(sd);
VirtIODevice *vdev = (VirtIODevice *)
object_dynamic_cast(OBJECT(sbus->qbus.parent),
TYPE_VIRTIO_DEVICE);
if (vdev) {
ccw_dev = (CcwDevice *)
object_dynamic_cast(OBJECT(qdev_get_parent_bus(DEVICE(vdev))->parent),
TYPE_CCW_DEVICE);
if (ccw_dev) {
tmp_dt = CCW_DEVTYPE_SCSI;
}
}
}
}
}
if (devtype) {
*devtype = tmp_dt;
}
return ccw_dev;
}
static uint64_t s390_ipl_map_iplb_chain(IplParameterBlock *iplb_chain)
{
S390IPLState *ipl = get_ipl_device();
uint16_t count = be16_to_cpu(ipl->qipl.chain_len);
uint64_t len = sizeof(IplParameterBlock) * count;
uint64_t chain_addr = find_iplb_chain_addr(ipl->bios_start_addr, count);
cpu_physical_memory_write(chain_addr, iplb_chain, len);
return chain_addr;
}
void s390_ipl_fmt_loadparm(uint8_t *loadparm, char *str, Error **errp)
{
/* Initialize the loadparm with spaces */
memset(loadparm, ' ', LOADPARM_LEN);
qdev_prop_sanitize_s390x_loadparm(loadparm, str, errp);
}
void s390_ipl_convert_loadparm(char *ascii_lp, uint8_t *ebcdic_lp)
{
int i;
/* Initialize the loadparm with EBCDIC spaces (0x40) */
memset(ebcdic_lp, '@', LOADPARM_LEN);
for (i = 0; i < LOADPARM_LEN && ascii_lp[i]; i++) {
ebcdic_lp[i] = ascii2ebcdic[(uint8_t) ascii_lp[i]];
}
}
static bool s390_build_iplb(DeviceState *dev_st, IplParameterBlock *iplb)
{
CcwDevice *ccw_dev = NULL;
SCSIDevice *sd;
int devtype;
uint8_t *lp;
g_autofree void *scsi_lp = NULL;
/*
* Currently allow IPL only from CCW devices.
*/
ccw_dev = s390_get_ccw_device(dev_st, &devtype);
if (ccw_dev) {
lp = ccw_dev->loadparm;
switch (devtype) {
case CCW_DEVTYPE_SCSI:
sd = SCSI_DEVICE(dev_st);
scsi_lp = object_property_get_str(OBJECT(sd), "loadparm", NULL);
if (scsi_lp && strlen(scsi_lp) > 0) {
lp = scsi_lp;
}
iplb->len = cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN);
iplb->blk0_len =
cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN - S390_IPLB_HEADER_LEN);
iplb->pbt = S390_IPL_TYPE_QEMU_SCSI;
iplb->scsi.lun = cpu_to_be32(sd->lun);
iplb->scsi.target = cpu_to_be16(sd->id);
iplb->scsi.channel = cpu_to_be16(sd->channel);
iplb->scsi.devno = cpu_to_be16(ccw_dev->sch->devno);
iplb->scsi.ssid = ccw_dev->sch->ssid & 3;
break;
case CCW_DEVTYPE_VFIO:
iplb->len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN);
iplb->pbt = S390_IPL_TYPE_CCW;
iplb->ccw.devno = cpu_to_be16(ccw_dev->sch->devno);
iplb->ccw.ssid = ccw_dev->sch->ssid & 3;
break;
case CCW_DEVTYPE_VIRTIO_NET:
case CCW_DEVTYPE_VIRTIO:
iplb->len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN);
iplb->blk0_len =
cpu_to_be32(S390_IPLB_MIN_CCW_LEN - S390_IPLB_HEADER_LEN);
iplb->pbt = S390_IPL_TYPE_CCW;
iplb->ccw.devno = cpu_to_be16(ccw_dev->sch->devno);
iplb->ccw.ssid = ccw_dev->sch->ssid & 3;
break;
}
/* If the device loadparm is empty use the global machine loadparm */
if (memcmp(lp, NO_LOADPARM, 8) == 0) {
lp = S390_CCW_MACHINE(qdev_get_machine())->loadparm;
}
s390_ipl_convert_loadparm((char *)lp, iplb->loadparm);
iplb->flags |= DIAG308_FLAGS_LP_VALID;
return true;
}
return false;
}
void s390_rebuild_iplb(uint16_t dev_index, IplParameterBlock *iplb)
{
S390IPLState *ipl = get_ipl_device();
uint16_t index;
index = ipl->rebuilt_iplb ? ipl->iplb_index : dev_index;
ipl->rebuilt_iplb = s390_build_iplb(get_boot_device(index), iplb);
ipl->iplb_index = index;
}
static bool s390_init_all_iplbs(S390IPLState *ipl)
{
int iplb_num = 0;
IplParameterBlock iplb_chain[7];
DeviceState *dev_st = get_boot_device(0);
Object *machine = qdev_get_machine();
/*
* Parse the boot devices. Generate an IPLB for only the first boot device
* which will later be set with DIAG308.
*/
if (!dev_st) {
ipl->qipl.chain_len = 0;
return false;
}
/* If no machine loadparm was defined fill it with spaces */
if (memcmp(S390_CCW_MACHINE(machine)->loadparm, NO_LOADPARM, 8) == 0) {
object_property_set_str(machine, "loadparm", " ", NULL);
}
iplb_num = 1;
s390_build_iplb(dev_st, &ipl->iplb);
/* Index any fallback boot devices */
while (get_boot_device(iplb_num)) {
iplb_num++;
}
if (iplb_num > MAX_BOOT_DEVS) {
warn_report("Excess boot devices defined! %d boot devices found, "
"but only the first %d will be considered.",
iplb_num, MAX_BOOT_DEVS);
iplb_num = MAX_BOOT_DEVS;
}
ipl->qipl.chain_len = cpu_to_be16(iplb_num - 1);
/*
* Build fallback IPLBs for any boot devices above index 0, up to a
* maximum amount as defined in ipl.h
*/
if (iplb_num > 1) {
/* Start at 1 because the IPLB for boot index 0 is not chained */
for (int i = 1; i < iplb_num; i++) {
dev_st = get_boot_device(i);
s390_build_iplb(dev_st, &iplb_chain[i - 1]);
}
ipl->qipl.next_iplb = cpu_to_be64(s390_ipl_map_iplb_chain(iplb_chain));
}
return iplb_num;
}
static void update_machine_ipl_properties(IplParameterBlock *iplb)
{
Object *machine = qdev_get_machine();
Error *err = NULL;
/* Sync loadparm */
if (iplb->flags & DIAG308_FLAGS_LP_VALID) {
uint8_t *ebcdic_loadparm = iplb->loadparm;
char ascii_loadparm[9];
int i;
for (i = 0; i < 8 && ebcdic_loadparm[i]; i++) {
ascii_loadparm[i] = ebcdic2ascii[(uint8_t) ebcdic_loadparm[i]];
}
ascii_loadparm[i] = 0;
object_property_set_str(machine, "loadparm", ascii_loadparm, &err);
} else {
object_property_set_str(machine, "loadparm", " ", &err);
}
if (err) {
warn_report_err(err);
}
}
void s390_ipl_update_diag308(IplParameterBlock *iplb)
{
S390IPLState *ipl = get_ipl_device();
/*
* The IPLB set and retrieved by subcodes 8/9 is completely
* separate from the one managed via subcodes 5/6.
*/
if (iplb->pbt == S390_IPL_TYPE_PV) {
ipl->iplb_pv = *iplb;
ipl->iplb_valid_pv = true;
} else {
ipl->iplb = *iplb;
ipl->iplb_valid = true;
}
update_machine_ipl_properties(iplb);
}
IplParameterBlock *s390_ipl_get_iplb_pv(void)
{
S390IPLState *ipl = get_ipl_device();
if (!ipl->iplb_valid_pv) {
return NULL;
}
return &ipl->iplb_pv;
}
IplParameterBlock *s390_ipl_get_iplb(void)
{
S390IPLState *ipl = get_ipl_device();
if (!ipl->iplb_valid) {
return NULL;
}
return &ipl->iplb;
}
void s390_ipl_reset_request(CPUState *cs, enum s390_reset reset_type)
{
S390IPLState *ipl = get_ipl_device();
if (reset_type == S390_RESET_EXTERNAL || reset_type == S390_RESET_REIPL) {
/* use CPU 0 for full resets */
ipl->reset_cpu_index = 0;
} else {
ipl->reset_cpu_index = cs->cpu_index;
}
ipl->reset_type = reset_type;
if (reset_type == S390_RESET_MODIFIED_CLEAR ||
reset_type == S390_RESET_LOAD_NORMAL ||
reset_type == S390_RESET_PV) {
/* ignore -no-reboot, send no event */
qemu_system_reset_request(SHUTDOWN_CAUSE_SUBSYSTEM_RESET);
} else {
qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
}
/* as this is triggered by a CPU, make sure to exit the loop */
if (tcg_enabled()) {
cpu_loop_exit(cs);
}
}
void s390_ipl_get_reset_request(CPUState **cs, enum s390_reset *reset_type)
{
S390IPLState *ipl = get_ipl_device();
*cs = qemu_get_cpu(ipl->reset_cpu_index);
if (!*cs) {
/* use any CPU */
*cs = first_cpu;
}
*reset_type = ipl->reset_type;
}
void s390_ipl_clear_reset_request(void)
{
S390IPLState *ipl = get_ipl_device();
ipl->reset_type = S390_RESET_EXTERNAL;
/* use CPU 0 for full resets */
ipl->reset_cpu_index = 0;
}
static void s390_ipl_prepare_qipl(S390CPU *cpu)
{
S390IPLState *ipl = get_ipl_device();
uint8_t *addr;
uint64_t len = 4096;
addr = cpu_physical_memory_map(cpu->env.psa, &len, true);
if (!addr || len < QIPL_ADDRESS + sizeof(QemuIplParameters)) {
error_report("Cannot set QEMU IPL parameters");
return;
}
memcpy(addr + QIPL_ADDRESS, &ipl->qipl, sizeof(QemuIplParameters));
cpu_physical_memory_unmap(addr, len, 1, len);
}
int s390_ipl_prepare_pv_header(Error **errp)
{
IplParameterBlock *ipib = s390_ipl_get_iplb_pv();
IPLBlockPV *ipib_pv = &ipib->pv;
void *hdr = g_malloc(ipib_pv->pv_header_len);
int rc;
cpu_physical_memory_read(ipib_pv->pv_header_addr, hdr,
ipib_pv->pv_header_len);
rc = s390_pv_set_sec_parms((uintptr_t)hdr, ipib_pv->pv_header_len, errp);
g_free(hdr);
return rc;
}
int s390_ipl_pv_unpack(void)
{
IplParameterBlock *ipib = s390_ipl_get_iplb_pv();
IPLBlockPV *ipib_pv = &ipib->pv;
int i, rc = 0;
for (i = 0; i < ipib_pv->num_comp; i++) {
rc = s390_pv_unpack(ipib_pv->components[i].addr,
TARGET_PAGE_ALIGN(ipib_pv->components[i].size),
ipib_pv->components[i].tweak_pref);
if (rc) {
break;
}
}
return rc;
}
void s390_ipl_prepare_cpu(S390CPU *cpu)
{
S390IPLState *ipl = get_ipl_device();
cpu->env.psw.addr = ipl->start_addr;
cpu->env.psw.mask = IPL_PSW_MASK;
if (!ipl->kernel || ipl->iplb_valid) {
cpu->env.psw.addr = ipl->bios_start_addr;
if (!ipl->iplb_valid) {
ipl->iplb_valid = s390_init_all_iplbs(ipl);
} else {
ipl->qipl.chain_len = 0;
}
}
s390_ipl_set_boot_menu(ipl);
s390_ipl_prepare_qipl(cpu);
}
static void s390_ipl_reset(DeviceState *dev)
{
S390IPLState *ipl = S390_IPL(dev);
if (ipl->reset_type != S390_RESET_REIPL) {
ipl->iplb_valid = false;
memset(&ipl->iplb, 0, sizeof(IplParameterBlock));
}
}
static void s390_ipl_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = s390_ipl_realize;
device_class_set_props(dc, s390_ipl_properties);
device_class_set_legacy_reset(dc, s390_ipl_reset);
dc->vmsd = &vmstate_ipl;
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
/* Reason: Loads the ROMs and thus can only be used one time - internally */
dc->user_creatable = false;
}
static const TypeInfo s390_ipl_info = {
.class_init = s390_ipl_class_init,
.parent = TYPE_DEVICE,
.name = TYPE_S390_IPL,
.instance_size = sizeof(S390IPLState),
};
static void s390_ipl_register_types(void)
{
type_register_static(&s390_ipl_info);
}
type_init(s390_ipl_register_types)