#include "qemu/osdep.h"
#include "qapi/error.h"
#include "sysemu/sysemu.h"
+#include "sysemu/tcg.h"
#include "cpu.h"
#include "elf.h"
#include "hw/loader.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 "ipl.h"
#include "qemu/config-file.h"
#include "qemu/cutils.h"
#include "qemu/option.h"
+#include "exec/exec-all.h"
#define KERN_IMAGE_START 0x010000UL
+#define LINUX_MAGIC_ADDR 0x010008UL
#define KERN_PARM_AREA 0x010480UL
#define INITRD_START 0x800000UL
#define INITRD_PARM_START 0x010408UL
-#define INITRD_PARM_SIZE 0x010410UL
#define PARMFILE_START 0x001000UL
#define ZIPL_IMAGE_START 0x009000UL
#define IPL_PSW_MASK (PSW_MASK_32 | PSW_MASK_64)
static void s390_ipl_realize(DeviceState *dev, Error **errp)
{
S390IPLState *ipl = S390_IPL(dev);
- uint64_t pentry = KERN_IMAGE_START;
+ uint32_t *ipl_psw;
+ uint64_t pentry;
+ char *magic;
int kernel_size;
Error *err = NULL;
goto error;
}
- bios_size = load_elf(bios_filename, bios_translate_addr, &fwbase,
+ bios_size = load_elf(bios_filename, NULL,
+ bios_translate_addr, &fwbase,
&ipl->bios_start_addr, NULL, NULL, 1,
EM_S390, 0, 0);
if (bios_size > 0) {
}
if (ipl->kernel) {
- kernel_size = load_elf(ipl->kernel, NULL, NULL, &pentry, NULL,
+ kernel_size = load_elf(ipl->kernel, NULL, NULL, NULL,
+ &pentry, NULL,
NULL, 1, EM_S390, 0, 0);
if (kernel_size < 0) {
kernel_size = load_image_targphys(ipl->kernel, 0, ram_size);
- }
- if (kernel_size < 0) {
- error_setg(&err, "could not load kernel '%s'", ipl->kernel);
- goto error;
+ if (kernel_size < 0) {
+ error_setg(&err, "could not load kernel '%s'", ipl->kernel);
+ goto error;
+ }
+ /* 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) & 0x7fffffffUL;
+ } else {
+ error_setg(&err, "Could not get IPL PSW");
+ goto error;
+ }
+ }
}
/*
* Is it a Linux kernel (starting at 0x10000)? If yes, we fill in the
* loader) and it won't work. For this case we force it to 0x10000, too.
*/
if (pentry == KERN_IMAGE_START || pentry == 0x800) {
+ char *parm_area = rom_ptr(KERN_PARM_AREA, strlen(ipl->cmdline) + 1);
ipl->start_addr = KERN_IMAGE_START;
/* Overwrite parameters in the kernel image, which are "rom" */
- strcpy(rom_ptr(KERN_PARM_AREA), ipl->cmdline);
+ if (parm_area) {
+ 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) {
* we have to overwrite values in the kernel image,
* which are "rom"
*/
- stq_p(rom_ptr(INITRD_PARM_START), initrd_offset);
- stq_p(rom_ptr(INITRD_PARM_SIZE), initrd_size);
+ romptr = rom_ptr(INITRD_PARM_START, 16);
+ if (romptr) {
+ stq_p(romptr, initrd_offset);
+ stq_p(romptr + 1, initrd_size);
+ }
}
}
/*
{
QemuOptsList *plist = qemu_find_opts("boot-opts");
QemuOpts *opts = QTAILQ_FIRST(&plist->head);
- uint8_t *flags = &ipl->qipl.qipl_flags;
- uint32_t *timeout = &ipl->qipl.boot_menu_timeout;
const char *tmp;
unsigned long splash_time = 0;
case S390_IPL_TYPE_CCW:
/* In the absence of -boot menu, use zipl parameters */
if (!qemu_opt_get(opts, "menu")) {
- *flags |= QIPL_FLAG_BM_OPTS_ZIPL;
+ ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_ZIPL;
return;
}
break;
return;
}
- *flags |= QIPL_FLAG_BM_OPTS_CMD;
+ ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_CMD;
tmp = qemu_opt_get(opts, "splash-time");
if (tmp && qemu_strtoul(tmp, NULL, 10, &splash_time)) {
error_report("splash-time is invalid, forcing it to 0");
- *timeout = 0;
+ ipl->qipl.boot_menu_timeout = 0;
return;
}
if (splash_time > 0xffffffff) {
error_report("splash-time is too large, forcing it to max value");
- *timeout = 0xffffffff;
+ ipl->qipl.boot_menu_timeout = 0xffffffff;
return;
}
- *timeout = cpu_to_be32(splash_time);
+ ipl->qipl.boot_menu_timeout = cpu_to_be32(splash_time);
}
-static CcwDevice *s390_get_ccw_device(DeviceState *dev_st)
+#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),
ccw_dev = (CcwDevice *)object_dynamic_cast(OBJECT(scsi_ccw),
TYPE_CCW_DEVICE);
+ tmp_dt = CCW_DEVTYPE_SCSI;
}
}
}
+ if (devtype) {
+ *devtype = tmp_dt;
+ }
return ccw_dev;
}
{
DeviceState *dev_st;
CcwDevice *ccw_dev = NULL;
+ SCSIDevice *sd;
+ int devtype;
dev_st = get_boot_device(0);
if (dev_st) {
- ccw_dev = s390_get_ccw_device(dev_st);
+ ccw_dev = s390_get_ccw_device(dev_st, &devtype);
}
/*
* Currently allow IPL only from CCW devices.
*/
if (ccw_dev) {
- SCSIDevice *sd = (SCSIDevice *) object_dynamic_cast(OBJECT(dev_st),
- TYPE_SCSI_DEVICE);
-
- if (sd) {
+ switch (devtype) {
+ case CCW_DEVTYPE_SCSI:
+ sd = SCSI_DEVICE(dev_st);
ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN);
ipl->iplb.blk0_len =
cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN - S390_IPLB_HEADER_LEN);
ipl->iplb.scsi.channel = cpu_to_be16(sd->channel);
ipl->iplb.scsi.devno = cpu_to_be16(ccw_dev->sch->devno);
ipl->iplb.scsi.ssid = ccw_dev->sch->ssid & 3;
- } else {
- VirtIONet *vn = (VirtIONet *) object_dynamic_cast(OBJECT(dev_st),
- TYPE_VIRTIO_NET);
-
+ break;
+ case CCW_DEVTYPE_VFIO:
+ ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN);
+ ipl->iplb.pbt = S390_IPL_TYPE_CCW;
+ ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno);
+ ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3;
+ break;
+ case CCW_DEVTYPE_VIRTIO_NET:
+ ipl->netboot = true;
+ /* Fall through to CCW_DEVTYPE_VIRTIO case */
+ case CCW_DEVTYPE_VIRTIO:
ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN);
ipl->iplb.blk0_len =
cpu_to_be32(S390_IPLB_MIN_CCW_LEN - S390_IPLB_HEADER_LEN);
ipl->iplb.pbt = S390_IPL_TYPE_CCW;
ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno);
ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3;
-
- if (vn) {
- ipl->netboot = true;
- }
+ break;
}
if (!s390_ipl_set_loadparm(ipl->iplb.loadparm)) {
loadparm[i] = ascii2ebcdic[(uint8_t) lp[i]];
}
+ if (i < 8) {
+ memset(loadparm + i, 0x40, 8 - i); /* fill with EBCDIC spaces */
+ }
+
g_free(lp);
return 0;
}
goto unref_mr;
}
- img_size = load_elf_ram(netboot_filename, NULL, NULL, &ipl->start_addr,
+ img_size = load_elf_ram(netboot_filename, NULL, NULL, NULL,
+ &ipl->start_addr,
NULL, NULL, 1, EM_S390, 0, 0, NULL, false);
if (img_size < 0) {
return &ipl->iplb;
}
-void s390_reipl_request(void)
+void s390_ipl_reset_request(CPUState *cs, enum s390_reset reset_type)
{
S390IPLState *ipl = get_ipl_device();
- ipl->reipl_requested = true;
- if (ipl->iplb_valid &&
+ 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_REIPL &&
+ ipl->iplb_valid &&
!ipl->netboot &&
ipl->iplb.pbt == S390_IPL_TYPE_CCW &&
is_virtio_scsi_device(&ipl->iplb)) {
- CcwDevice *ccw_dev = s390_get_ccw_device(get_boot_device(0));
+ CcwDevice *ccw_dev = s390_get_ccw_device(get_boot_device(0), NULL);
if (ccw_dev &&
cpu_to_be16(ccw_dev->sch->devno) == ipl->iplb.ccw.devno &&
ipl->iplb_valid = s390_gen_initial_iplb(ipl);
}
}
- qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
+ if (reset_type == S390_RESET_MODIFIED_CLEAR ||
+ reset_type == S390_RESET_LOAD_NORMAL) {
+ /* 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 = S390_IPL(dev);
- if (!ipl->reipl_requested) {
+ if (ipl->reset_type != S390_RESET_REIPL) {
ipl->iplb_valid = false;
memset(&ipl->iplb, 0, sizeof(IplParameterBlock));
}
- ipl->reipl_requested = false;
}
static void s390_ipl_class_init(ObjectClass *klass, void *data)
projects / qemu.git / blobdiff