]>
Commit | Line | Data |
---|---|---|
e674a49a CB |
1 | /* |
2 | * bootloader support | |
3 | * | |
c3347ed0 | 4 | * Copyright IBM, Corp. 2012, 2020 |
e674a49a CB |
5 | * |
6 | * Authors: | |
7 | * Christian Borntraeger <borntraeger@de.ibm.com> | |
c3347ed0 | 8 | * Janosch Frank <frankja@linux.ibm.com> |
e674a49a CB |
9 | * |
10 | * This work is licensed under the terms of the GNU GPL, version 2 or (at your | |
11 | * option) any later version. See the COPYING file in the top-level directory. | |
12 | * | |
13 | */ | |
14 | ||
9615495a | 15 | #include "qemu/osdep.h" |
a8d25326 | 16 | #include "qemu-common.h" |
2c65db5e | 17 | #include "qemu/datadir.h" |
da34e65c | 18 | #include "qapi/error.h" |
71e8a915 | 19 | #include "sysemu/reset.h" |
54d31236 | 20 | #include "sysemu/runstate.h" |
14a48c1d | 21 | #include "sysemu/tcg.h" |
e674a49a CB |
22 | #include "elf.h" |
23 | #include "hw/loader.h" | |
a27bd6c7 | 24 | #include "hw/qdev-properties.h" |
bd1badf4 | 25 | #include "hw/boards.h" |
ba1509c0 | 26 | #include "hw/s390x/virtio-ccw.h" |
44445d86 | 27 | #include "hw/s390x/vfio-ccw.h" |
ba1509c0 | 28 | #include "hw/s390x/css.h" |
bd1badf4 | 29 | #include "hw/s390x/ebcdic.h" |
c3347ed0 | 30 | #include "hw/s390x/pv.h" |
df75a4e2 | 31 | #include "ipl.h" |
f38b5b7f | 32 | #include "qemu/error-report.h" |
26b2a2a4 CW |
33 | #include "qemu/config-file.h" |
34 | #include "qemu/cutils.h" | |
35 | #include "qemu/option.h" | |
a30fb811 | 36 | #include "exec/exec-all.h" |
e674a49a CB |
37 | |
38 | #define KERN_IMAGE_START 0x010000UL | |
acd7ef83 | 39 | #define LINUX_MAGIC_ADDR 0x010008UL |
b2173046 | 40 | #define KERN_PARM_AREA_SIZE_ADDR 0x010430UL |
e674a49a | 41 | #define KERN_PARM_AREA 0x010480UL |
b2173046 | 42 | #define LEGACY_KERN_PARM_AREA_SIZE 0x000380UL |
e674a49a CB |
43 | #define INITRD_START 0x800000UL |
44 | #define INITRD_PARM_START 0x010408UL | |
e674a49a | 45 | #define PARMFILE_START 0x001000UL |
e674a49a CB |
46 | #define ZIPL_IMAGE_START 0x009000UL |
47 | #define IPL_PSW_MASK (PSW_MASK_32 | PSW_MASK_64) | |
48 | ||
04ca4b92 AY |
49 | static bool iplb_extended_needed(void *opaque) |
50 | { | |
51 | S390IPLState *ipl = S390_IPL(object_resolve_path(TYPE_S390_IPL, NULL)); | |
52 | ||
53 | return ipl->iplbext_migration; | |
54 | } | |
55 | ||
56 | static const VMStateDescription vmstate_iplb_extended = { | |
57 | .name = "ipl/iplb_extended", | |
58 | .version_id = 0, | |
59 | .minimum_version_id = 0, | |
60 | .needed = iplb_extended_needed, | |
61 | .fields = (VMStateField[]) { | |
62 | VMSTATE_UINT8_ARRAY(reserved_ext, IplParameterBlock, 4096 - 200), | |
63 | VMSTATE_END_OF_LIST() | |
64 | } | |
65 | }; | |
66 | ||
2e13fbe4 FZ |
67 | static const VMStateDescription vmstate_iplb = { |
68 | .name = "ipl/iplb", | |
69 | .version_id = 0, | |
70 | .minimum_version_id = 0, | |
71 | .fields = (VMStateField[]) { | |
72 | VMSTATE_UINT8_ARRAY(reserved1, IplParameterBlock, 110), | |
73 | VMSTATE_UINT16(devno, IplParameterBlock), | |
74 | VMSTATE_UINT8_ARRAY(reserved2, IplParameterBlock, 88), | |
75 | VMSTATE_END_OF_LIST() | |
04ca4b92 AY |
76 | }, |
77 | .subsections = (const VMStateDescription*[]) { | |
78 | &vmstate_iplb_extended, | |
79 | NULL | |
2e13fbe4 FZ |
80 | } |
81 | }; | |
82 | ||
83 | static const VMStateDescription vmstate_ipl = { | |
84 | .name = "ipl", | |
85 | .version_id = 0, | |
86 | .minimum_version_id = 0, | |
87 | .fields = (VMStateField[]) { | |
bb099546 DH |
88 | VMSTATE_UINT64(compat_start_addr, S390IPLState), |
89 | VMSTATE_UINT64(compat_bios_start_addr, S390IPLState), | |
2e13fbe4 FZ |
90 | VMSTATE_STRUCT(iplb, S390IPLState, 0, vmstate_iplb, IplParameterBlock), |
91 | VMSTATE_BOOL(iplb_valid, S390IPLState), | |
92 | VMSTATE_UINT8(cssid, S390IPLState), | |
93 | VMSTATE_UINT8(ssid, S390IPLState), | |
94 | VMSTATE_UINT16(devno, S390IPLState), | |
95 | VMSTATE_END_OF_LIST() | |
96 | } | |
97 | }; | |
e674a49a | 98 | |
feacc6c2 DH |
99 | static S390IPLState *get_ipl_device(void) |
100 | { | |
101 | return S390_IPL(object_resolve_path_type("", TYPE_S390_IPL, NULL)); | |
102 | } | |
103 | ||
d884c86d TH |
104 | static uint64_t bios_translate_addr(void *opaque, uint64_t srcaddr) |
105 | { | |
106 | uint64_t dstaddr = *(uint64_t *) opaque; | |
107 | /* | |
108 | * Assuming that our s390-ccw.img was linked for starting at address 0, | |
109 | * we can simply add the destination address for the final location | |
110 | */ | |
111 | return srcaddr + dstaddr; | |
112 | } | |
113 | ||
b2173046 MH |
114 | static uint64_t get_max_kernel_cmdline_size(void) |
115 | { | |
116 | uint64_t *size_ptr = rom_ptr(KERN_PARM_AREA_SIZE_ADDR, sizeof(*size_ptr)); | |
117 | ||
118 | if (size_ptr) { | |
119 | uint64_t size; | |
120 | ||
121 | size = be64_to_cpu(*size_ptr); | |
122 | if (size) { | |
123 | return size; | |
124 | } | |
125 | } | |
126 | return LEGACY_KERN_PARM_AREA_SIZE; | |
127 | } | |
128 | ||
04fccf10 | 129 | static void s390_ipl_realize(DeviceState *dev, Error **errp) |
e674a49a | 130 | { |
382a04af | 131 | MachineState *ms = MACHINE(qdev_get_machine()); |
e674a49a | 132 | S390IPLState *ipl = S390_IPL(dev); |
acd7ef83 CB |
133 | uint32_t *ipl_psw; |
134 | uint64_t pentry; | |
135 | char *magic; | |
376827d4 | 136 | int kernel_size; |
e674a49a | 137 | |
f0180f91 FZ |
138 | int bios_size; |
139 | char *bios_filename; | |
e674a49a | 140 | |
f0180f91 FZ |
141 | /* |
142 | * Always load the bios if it was enforced, | |
143 | * even if an external kernel has been defined. | |
144 | */ | |
145 | if (!ipl->kernel || ipl->enforce_bios) { | |
382a04af | 146 | uint64_t fwbase = (MIN(ms->ram_size, 0x80000000U) - 0x200000) & ~0xffffUL; |
d884c86d | 147 | |
f0344395 | 148 | bios_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, ipl->firmware); |
1f7de853 | 149 | if (bios_filename == NULL) { |
dcfe4805 MA |
150 | error_setg(errp, "could not find stage1 bootloader"); |
151 | return; | |
1f7de853 DD |
152 | } |
153 | ||
4366e1db LM |
154 | bios_size = load_elf(bios_filename, NULL, |
155 | bios_translate_addr, &fwbase, | |
6cdda0ff | 156 | &ipl->bios_start_addr, NULL, NULL, NULL, 1, |
7ef295ea | 157 | EM_S390, 0, 0); |
d884c86d TH |
158 | if (bios_size > 0) { |
159 | /* Adjust ELF start address to final location */ | |
160 | ipl->bios_start_addr += fwbase; | |
161 | } else { | |
f35c1f66 | 162 | /* Try to load non-ELF file */ |
33259956 AG |
163 | bios_size = load_image_targphys(bios_filename, ZIPL_IMAGE_START, |
164 | 4096); | |
f0180f91 | 165 | ipl->bios_start_addr = ZIPL_IMAGE_START; |
33259956 | 166 | } |
e674a49a CB |
167 | g_free(bios_filename); |
168 | ||
376827d4 | 169 | if (bios_size == -1) { |
f0344395 | 170 | error_setg(errp, "could not load bootloader '%s'", ipl->firmware); |
dcfe4805 | 171 | return; |
e674a49a | 172 | } |
7691993c | 173 | |
f0180f91 FZ |
174 | /* default boot target is the bios */ |
175 | ipl->start_addr = ipl->bios_start_addr; | |
e674a49a | 176 | } |
7691993c | 177 | |
f0180f91 | 178 | if (ipl->kernel) { |
4366e1db LM |
179 | kernel_size = load_elf(ipl->kernel, NULL, NULL, NULL, |
180 | &pentry, NULL, | |
6cdda0ff | 181 | NULL, NULL, 1, EM_S390, 0, 0); |
f0180f91 | 182 | if (kernel_size < 0) { |
382a04af | 183 | kernel_size = load_image_targphys(ipl->kernel, 0, ms->ram_size); |
acd7ef83 | 184 | if (kernel_size < 0) { |
dcfe4805 MA |
185 | error_setg(errp, "could not load kernel '%s'", ipl->kernel); |
186 | return; | |
acd7ef83 CB |
187 | } |
188 | /* if this is Linux use KERN_IMAGE_START */ | |
0f0f8b61 | 189 | magic = rom_ptr(LINUX_MAGIC_ADDR, 6); |
acd7ef83 CB |
190 | if (magic && !memcmp(magic, "S390EP", 6)) { |
191 | pentry = KERN_IMAGE_START; | |
192 | } else { | |
193 | /* if not Linux load the address of the (short) IPL PSW */ | |
0f0f8b61 | 194 | ipl_psw = rom_ptr(4, 4); |
acd7ef83 | 195 | if (ipl_psw) { |
b6c2dbd7 | 196 | pentry = be32_to_cpu(*ipl_psw) & PSW_MASK_SHORT_ADDR; |
acd7ef83 | 197 | } else { |
dcfe4805 MA |
198 | error_setg(errp, "Could not get IPL PSW"); |
199 | return; | |
acd7ef83 CB |
200 | } |
201 | } | |
e674a49a | 202 | } |
f0180f91 FZ |
203 | /* |
204 | * Is it a Linux kernel (starting at 0x10000)? If yes, we fill in the | |
205 | * kernel parameters here as well. Note: For old kernels (up to 3.2) | |
206 | * we can not rely on the ELF entry point - it was 0x800 (the SALIPL | |
207 | * loader) and it won't work. For this case we force it to 0x10000, too. | |
208 | */ | |
209 | if (pentry == KERN_IMAGE_START || pentry == 0x800) { | |
f1420101 MH |
210 | size_t cmdline_size = strlen(ipl->cmdline) + 1; |
211 | char *parm_area = rom_ptr(KERN_PARM_AREA, cmdline_size); | |
212 | ||
f0180f91 FZ |
213 | ipl->start_addr = KERN_IMAGE_START; |
214 | /* Overwrite parameters in the kernel image, which are "rom" */ | |
0f0f8b61 | 215 | if (parm_area) { |
b2173046 MH |
216 | uint64_t max_cmdline_size = get_max_kernel_cmdline_size(); |
217 | ||
218 | if (cmdline_size > max_cmdline_size) { | |
f1420101 | 219 | error_setg(errp, |
b2173046 MH |
220 | "kernel command line exceeds maximum size:" |
221 | " %zu > %" PRIu64, | |
222 | cmdline_size, max_cmdline_size); | |
f1420101 MH |
223 | return; |
224 | } | |
225 | ||
0f0f8b61 TH |
226 | strcpy(parm_area, ipl->cmdline); |
227 | } | |
f0180f91 FZ |
228 | } else { |
229 | ipl->start_addr = pentry; | |
e674a49a CB |
230 | } |
231 | ||
f0180f91 FZ |
232 | if (ipl->initrd) { |
233 | ram_addr_t initrd_offset; | |
234 | int initrd_size; | |
0f0f8b61 | 235 | uint64_t *romptr; |
f0180f91 FZ |
236 | |
237 | initrd_offset = INITRD_START; | |
238 | while (kernel_size + 0x100000 > initrd_offset) { | |
239 | initrd_offset += 0x100000; | |
240 | } | |
241 | initrd_size = load_image_targphys(ipl->initrd, initrd_offset, | |
382a04af | 242 | ms->ram_size - initrd_offset); |
f0180f91 | 243 | if (initrd_size == -1) { |
dcfe4805 MA |
244 | error_setg(errp, "could not load initrd '%s'", ipl->initrd); |
245 | return; | |
f0180f91 | 246 | } |
e674a49a | 247 | |
f0180f91 FZ |
248 | /* |
249 | * we have to overwrite values in the kernel image, | |
250 | * which are "rom" | |
251 | */ | |
0f0f8b61 TH |
252 | romptr = rom_ptr(INITRD_PARM_START, 16); |
253 | if (romptr) { | |
254 | stq_p(romptr, initrd_offset); | |
255 | stq_p(romptr + 1, initrd_size); | |
256 | } | |
f0180f91 FZ |
257 | } |
258 | } | |
bb099546 DH |
259 | /* |
260 | * Don't ever use the migrated values, they could come from a different | |
261 | * BIOS and therefore don't work. But still migrate the values, so | |
262 | * QEMUs relying on it don't break. | |
263 | */ | |
264 | ipl->compat_start_addr = ipl->start_addr; | |
265 | ipl->compat_bios_start_addr = ipl->bios_start_addr; | |
cd45c506 DH |
266 | /* |
267 | * Because this Device is not on any bus in the qbus tree (it is | |
268 | * not a sysbus device and it's not on some other bus like a PCI | |
269 | * bus) it will not be automatically reset by the 'reset the | |
270 | * sysbus' hook registered by vl.c like most devices. So we must | |
271 | * manually register a reset hook for it. | |
272 | * TODO: there should be a better way to do this. | |
273 | */ | |
274 | qemu_register_reset(resettable_cold_reset_fn, dev); | |
e674a49a CB |
275 | } |
276 | ||
277 | static Property s390_ipl_properties[] = { | |
278 | DEFINE_PROP_STRING("kernel", S390IPLState, kernel), | |
279 | DEFINE_PROP_STRING("initrd", S390IPLState, initrd), | |
280 | DEFINE_PROP_STRING("cmdline", S390IPLState, cmdline), | |
d0249ce5 | 281 | DEFINE_PROP_STRING("firmware", S390IPLState, firmware), |
5f31ade0 | 282 | DEFINE_PROP_STRING("netboot_fw", S390IPLState, netboot_fw), |
f0180f91 | 283 | DEFINE_PROP_BOOL("enforce_bios", S390IPLState, enforce_bios, false), |
04ca4b92 AY |
284 | DEFINE_PROP_BOOL("iplbext_migration", S390IPLState, iplbext_migration, |
285 | true), | |
e674a49a CB |
286 | DEFINE_PROP_END_OF_LIST(), |
287 | }; | |
288 | ||
26b2a2a4 CW |
289 | static void s390_ipl_set_boot_menu(S390IPLState *ipl) |
290 | { | |
291 | QemuOptsList *plist = qemu_find_opts("boot-opts"); | |
292 | QemuOpts *opts = QTAILQ_FIRST(&plist->head); | |
26b2a2a4 CW |
293 | const char *tmp; |
294 | unsigned long splash_time = 0; | |
295 | ||
296 | if (!get_boot_device(0)) { | |
297 | if (boot_menu) { | |
298 | error_report("boot menu requires a bootindex to be specified for " | |
56000869 | 299 | "the IPL device"); |
26b2a2a4 CW |
300 | } |
301 | return; | |
302 | } | |
303 | ||
304 | switch (ipl->iplb.pbt) { | |
305 | case S390_IPL_TYPE_CCW: | |
53b310ce CW |
306 | /* In the absence of -boot menu, use zipl parameters */ |
307 | if (!qemu_opt_get(opts, "menu")) { | |
5d45a332 | 308 | ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_ZIPL; |
53b310ce CW |
309 | return; |
310 | } | |
26b2a2a4 | 311 | break; |
ffb4a1c8 CW |
312 | case S390_IPL_TYPE_QEMU_SCSI: |
313 | break; | |
26b2a2a4 | 314 | default: |
56000869 CW |
315 | if (boot_menu) { |
316 | error_report("boot menu is not supported for this device type"); | |
317 | } | |
26b2a2a4 CW |
318 | return; |
319 | } | |
320 | ||
321 | if (!boot_menu) { | |
322 | return; | |
323 | } | |
324 | ||
5d45a332 | 325 | ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_CMD; |
26b2a2a4 CW |
326 | |
327 | tmp = qemu_opt_get(opts, "splash-time"); | |
328 | ||
329 | if (tmp && qemu_strtoul(tmp, NULL, 10, &splash_time)) { | |
56000869 | 330 | error_report("splash-time is invalid, forcing it to 0"); |
5d45a332 | 331 | ipl->qipl.boot_menu_timeout = 0; |
26b2a2a4 CW |
332 | return; |
333 | } | |
334 | ||
335 | if (splash_time > 0xffffffff) { | |
56000869 | 336 | error_report("splash-time is too large, forcing it to max value"); |
5d45a332 | 337 | ipl->qipl.boot_menu_timeout = 0xffffffff; |
26b2a2a4 CW |
338 | return; |
339 | } | |
340 | ||
5d45a332 | 341 | ipl->qipl.boot_menu_timeout = cpu_to_be32(splash_time); |
26b2a2a4 CW |
342 | } |
343 | ||
44445d86 JH |
344 | #define CCW_DEVTYPE_NONE 0x00 |
345 | #define CCW_DEVTYPE_VIRTIO 0x01 | |
346 | #define CCW_DEVTYPE_VIRTIO_NET 0x02 | |
347 | #define CCW_DEVTYPE_SCSI 0x03 | |
348 | #define CCW_DEVTYPE_VFIO 0x04 | |
349 | ||
350 | static CcwDevice *s390_get_ccw_device(DeviceState *dev_st, int *devtype) | |
11ef6d50 VM |
351 | { |
352 | CcwDevice *ccw_dev = NULL; | |
44445d86 | 353 | int tmp_dt = CCW_DEVTYPE_NONE; |
11ef6d50 VM |
354 | |
355 | if (dev_st) { | |
44445d86 JH |
356 | VirtIONet *virtio_net_dev = (VirtIONet *) |
357 | object_dynamic_cast(OBJECT(dev_st), TYPE_VIRTIO_NET); | |
11ef6d50 VM |
358 | VirtioCcwDevice *virtio_ccw_dev = (VirtioCcwDevice *) |
359 | object_dynamic_cast(OBJECT(qdev_get_parent_bus(dev_st)->parent), | |
360 | TYPE_VIRTIO_CCW_DEVICE); | |
44445d86 JH |
361 | VFIOCCWDevice *vfio_ccw_dev = (VFIOCCWDevice *) |
362 | object_dynamic_cast(OBJECT(dev_st), TYPE_VFIO_CCW); | |
363 | ||
11ef6d50 VM |
364 | if (virtio_ccw_dev) { |
365 | ccw_dev = CCW_DEVICE(virtio_ccw_dev); | |
44445d86 JH |
366 | if (virtio_net_dev) { |
367 | tmp_dt = CCW_DEVTYPE_VIRTIO_NET; | |
368 | } else { | |
369 | tmp_dt = CCW_DEVTYPE_VIRTIO; | |
370 | } | |
371 | } else if (vfio_ccw_dev) { | |
372 | ccw_dev = CCW_DEVICE(vfio_ccw_dev); | |
373 | tmp_dt = CCW_DEVTYPE_VFIO; | |
11ef6d50 VM |
374 | } else { |
375 | SCSIDevice *sd = (SCSIDevice *) | |
376 | object_dynamic_cast(OBJECT(dev_st), | |
377 | TYPE_SCSI_DEVICE); | |
378 | if (sd) { | |
379 | SCSIBus *bus = scsi_bus_from_device(sd); | |
380 | VirtIOSCSI *vdev = container_of(bus, VirtIOSCSI, bus); | |
381 | VirtIOSCSICcw *scsi_ccw = container_of(vdev, VirtIOSCSICcw, | |
382 | vdev); | |
383 | ||
384 | ccw_dev = (CcwDevice *)object_dynamic_cast(OBJECT(scsi_ccw), | |
385 | TYPE_CCW_DEVICE); | |
44445d86 | 386 | tmp_dt = CCW_DEVTYPE_SCSI; |
11ef6d50 VM |
387 | } |
388 | } | |
389 | } | |
44445d86 JH |
390 | if (devtype) { |
391 | *devtype = tmp_dt; | |
392 | } | |
11ef6d50 VM |
393 | return ccw_dev; |
394 | } | |
395 | ||
010d45d2 | 396 | static bool s390_gen_initial_iplb(S390IPLState *ipl) |
df75a4e2 FZ |
397 | { |
398 | DeviceState *dev_st; | |
11ef6d50 | 399 | CcwDevice *ccw_dev = NULL; |
44445d86 JH |
400 | SCSIDevice *sd; |
401 | int devtype; | |
df75a4e2 | 402 | |
df75a4e2 FZ |
403 | dev_st = get_boot_device(0); |
404 | if (dev_st) { | |
44445d86 | 405 | ccw_dev = s390_get_ccw_device(dev_st, &devtype); |
11ef6d50 VM |
406 | } |
407 | ||
408 | /* | |
409 | * Currently allow IPL only from CCW devices. | |
410 | */ | |
411 | if (ccw_dev) { | |
44445d86 JH |
412 | switch (devtype) { |
413 | case CCW_DEVTYPE_SCSI: | |
216bdd27 | 414 | sd = SCSI_DEVICE(dev_st); |
e468b673 AY |
415 | ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN); |
416 | ipl->iplb.blk0_len = | |
417 | cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN - S390_IPLB_HEADER_LEN); | |
418 | ipl->iplb.pbt = S390_IPL_TYPE_QEMU_SCSI; | |
419 | ipl->iplb.scsi.lun = cpu_to_be32(sd->lun); | |
420 | ipl->iplb.scsi.target = cpu_to_be16(sd->id); | |
421 | ipl->iplb.scsi.channel = cpu_to_be16(sd->channel); | |
b804e8a6 JL |
422 | ipl->iplb.scsi.devno = cpu_to_be16(ccw_dev->sch->devno); |
423 | ipl->iplb.scsi.ssid = ccw_dev->sch->ssid & 3; | |
44445d86 JH |
424 | break; |
425 | case CCW_DEVTYPE_VFIO: | |
426 | ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN); | |
427 | ipl->iplb.pbt = S390_IPL_TYPE_CCW; | |
428 | ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno); | |
429 | ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3; | |
430 | break; | |
431 | case CCW_DEVTYPE_VIRTIO_NET: | |
432 | ipl->netboot = true; | |
433 | /* Fall through to CCW_DEVTYPE_VIRTIO case */ | |
434 | case CCW_DEVTYPE_VIRTIO: | |
11ef6d50 VM |
435 | ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN); |
436 | ipl->iplb.blk0_len = | |
437 | cpu_to_be32(S390_IPLB_MIN_CCW_LEN - S390_IPLB_HEADER_LEN); | |
438 | ipl->iplb.pbt = S390_IPL_TYPE_CCW; | |
439 | ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno); | |
440 | ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3; | |
44445d86 | 441 | break; |
bd1badf4 FA |
442 | } |
443 | ||
444 | if (!s390_ipl_set_loadparm(ipl->iplb.loadparm)) { | |
445 | ipl->iplb.flags |= DIAG308_FLAGS_LP_VALID; | |
df75a4e2 | 446 | } |
11ef6d50 | 447 | |
bd1badf4 | 448 | return true; |
df75a4e2 FZ |
449 | } |
450 | ||
010d45d2 | 451 | return false; |
df75a4e2 FZ |
452 | } |
453 | ||
bd1badf4 FA |
454 | int s390_ipl_set_loadparm(uint8_t *loadparm) |
455 | { | |
456 | MachineState *machine = MACHINE(qdev_get_machine()); | |
457 | char *lp = object_property_get_str(OBJECT(machine), "loadparm", NULL); | |
458 | ||
459 | if (lp) { | |
460 | int i; | |
461 | ||
462 | /* lp is an uppercase string without leading/embedded spaces */ | |
463 | for (i = 0; i < 8 && lp[i]; i++) { | |
464 | loadparm[i] = ascii2ebcdic[(uint8_t) lp[i]]; | |
465 | } | |
466 | ||
074afe60 CW |
467 | if (i < 8) { |
468 | memset(loadparm + i, 0x40, 8 - i); /* fill with EBCDIC spaces */ | |
469 | } | |
470 | ||
bd1badf4 FA |
471 | g_free(lp); |
472 | return 0; | |
473 | } | |
474 | ||
475 | return -1; | |
476 | } | |
477 | ||
f38b5b7f FA |
478 | static int load_netboot_image(Error **errp) |
479 | { | |
382a04af | 480 | MachineState *ms = MACHINE(qdev_get_machine()); |
f38b5b7f FA |
481 | S390IPLState *ipl = get_ipl_device(); |
482 | char *netboot_filename; | |
483 | MemoryRegion *sysmem = get_system_memory(); | |
484 | MemoryRegion *mr = NULL; | |
485 | void *ram_ptr = NULL; | |
486 | int img_size = -1; | |
487 | ||
488 | mr = memory_region_find(sysmem, 0, 1).mr; | |
489 | if (!mr) { | |
490 | error_setg(errp, "Failed to find memory region at address 0"); | |
491 | return -1; | |
492 | } | |
493 | ||
494 | ram_ptr = memory_region_get_ram_ptr(mr); | |
495 | if (!ram_ptr) { | |
496 | error_setg(errp, "No RAM found"); | |
497 | goto unref_mr; | |
498 | } | |
499 | ||
500 | netboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, ipl->netboot_fw); | |
501 | if (netboot_filename == NULL) { | |
c575fa67 TH |
502 | error_setg(errp, "Could not find network bootloader '%s'", |
503 | ipl->netboot_fw); | |
f38b5b7f FA |
504 | goto unref_mr; |
505 | } | |
506 | ||
4366e1db LM |
507 | img_size = load_elf_ram(netboot_filename, NULL, NULL, NULL, |
508 | &ipl->start_addr, | |
6cdda0ff AM |
509 | NULL, NULL, NULL, 1, EM_S390, 0, 0, NULL, |
510 | false); | |
f38b5b7f FA |
511 | |
512 | if (img_size < 0) { | |
382a04af | 513 | img_size = load_image_size(netboot_filename, ram_ptr, ms->ram_size); |
f38b5b7f FA |
514 | ipl->start_addr = KERN_IMAGE_START; |
515 | } | |
516 | ||
517 | if (img_size < 0) { | |
518 | error_setg(errp, "Failed to load network bootloader"); | |
519 | } | |
520 | ||
521 | g_free(netboot_filename); | |
522 | ||
523 | unref_mr: | |
524 | memory_region_unref(mr); | |
525 | return img_size; | |
526 | } | |
527 | ||
789b5a40 VM |
528 | static bool is_virtio_ccw_device_of_type(IplParameterBlock *iplb, |
529 | int virtio_id) | |
f38b5b7f FA |
530 | { |
531 | uint8_t cssid; | |
532 | uint8_t ssid; | |
533 | uint16_t devno; | |
534 | uint16_t schid; | |
535 | SubchDev *sch = NULL; | |
536 | ||
537 | if (iplb->pbt != S390_IPL_TYPE_CCW) { | |
538 | return false; | |
539 | } | |
540 | ||
541 | devno = be16_to_cpu(iplb->ccw.devno); | |
542 | ssid = iplb->ccw.ssid & 3; | |
543 | ||
544 | for (schid = 0; schid < MAX_SCHID; schid++) { | |
545 | for (cssid = 0; cssid < MAX_CSSID; cssid++) { | |
546 | sch = css_find_subch(1, cssid, ssid, schid); | |
547 | ||
548 | if (sch && sch->devno == devno) { | |
789b5a40 | 549 | return sch->id.cu_model == virtio_id; |
f38b5b7f FA |
550 | } |
551 | } | |
552 | } | |
553 | return false; | |
554 | } | |
555 | ||
789b5a40 VM |
556 | static bool is_virtio_net_device(IplParameterBlock *iplb) |
557 | { | |
558 | return is_virtio_ccw_device_of_type(iplb, VIRTIO_ID_NET); | |
559 | } | |
560 | ||
561 | static bool is_virtio_scsi_device(IplParameterBlock *iplb) | |
562 | { | |
563 | return is_virtio_ccw_device_of_type(iplb, VIRTIO_ID_SCSI); | |
564 | } | |
565 | ||
0a01e082 HP |
566 | static void update_machine_ipl_properties(IplParameterBlock *iplb) |
567 | { | |
568 | Object *machine = qdev_get_machine(); | |
569 | Error *err = NULL; | |
570 | ||
571 | /* Sync loadparm */ | |
572 | if (iplb->flags & DIAG308_FLAGS_LP_VALID) { | |
573 | uint8_t *ebcdic_loadparm = iplb->loadparm; | |
77228373 | 574 | char ascii_loadparm[9]; |
0a01e082 HP |
575 | int i; |
576 | ||
577 | for (i = 0; i < 8 && ebcdic_loadparm[i]; i++) { | |
578 | ascii_loadparm[i] = ebcdic2ascii[(uint8_t) ebcdic_loadparm[i]]; | |
579 | } | |
580 | ascii_loadparm[i] = 0; | |
5325cc34 | 581 | object_property_set_str(machine, "loadparm", ascii_loadparm, &err); |
0a01e082 | 582 | } else { |
5325cc34 | 583 | object_property_set_str(machine, "loadparm", "", &err); |
0a01e082 HP |
584 | } |
585 | if (err) { | |
586 | warn_report_err(err); | |
587 | } | |
588 | } | |
589 | ||
feacc6c2 | 590 | void s390_ipl_update_diag308(IplParameterBlock *iplb) |
df75a4e2 | 591 | { |
feacc6c2 | 592 | S390IPLState *ipl = get_ipl_device(); |
df75a4e2 | 593 | |
c3347ed0 JF |
594 | /* |
595 | * The IPLB set and retrieved by subcodes 8/9 is completely | |
596 | * separate from the one managed via subcodes 5/6. | |
597 | */ | |
598 | if (iplb->pbt == S390_IPL_TYPE_PV) { | |
599 | ipl->iplb_pv = *iplb; | |
600 | ipl->iplb_valid_pv = true; | |
601 | } else { | |
602 | ipl->iplb = *iplb; | |
603 | ipl->iplb_valid = true; | |
604 | } | |
f38b5b7f | 605 | ipl->netboot = is_virtio_net_device(iplb); |
0a01e082 | 606 | update_machine_ipl_properties(iplb); |
df75a4e2 FZ |
607 | } |
608 | ||
c3347ed0 JF |
609 | IplParameterBlock *s390_ipl_get_iplb_pv(void) |
610 | { | |
611 | S390IPLState *ipl = get_ipl_device(); | |
612 | ||
613 | if (!ipl->iplb_valid_pv) { | |
614 | return NULL; | |
615 | } | |
616 | return &ipl->iplb_pv; | |
617 | } | |
618 | ||
df75a4e2 FZ |
619 | IplParameterBlock *s390_ipl_get_iplb(void) |
620 | { | |
feacc6c2 | 621 | S390IPLState *ipl = get_ipl_device(); |
df75a4e2 | 622 | |
feacc6c2 | 623 | if (!ipl->iplb_valid) { |
df75a4e2 FZ |
624 | return NULL; |
625 | } | |
626 | return &ipl->iplb; | |
627 | } | |
628 | ||
a30fb811 | 629 | void s390_ipl_reset_request(CPUState *cs, enum s390_reset reset_type) |
e91e972c | 630 | { |
feacc6c2 | 631 | S390IPLState *ipl = get_ipl_device(); |
e91e972c | 632 | |
a30fb811 DH |
633 | if (reset_type == S390_RESET_EXTERNAL || reset_type == S390_RESET_REIPL) { |
634 | /* use CPU 0 for full resets */ | |
635 | ipl->reset_cpu_index = 0; | |
636 | } else { | |
637 | ipl->reset_cpu_index = cs->cpu_index; | |
638 | } | |
639 | ipl->reset_type = reset_type; | |
640 | ||
641 | if (reset_type == S390_RESET_REIPL && | |
642 | ipl->iplb_valid && | |
789b5a40 VM |
643 | !ipl->netboot && |
644 | ipl->iplb.pbt == S390_IPL_TYPE_CCW && | |
645 | is_virtio_scsi_device(&ipl->iplb)) { | |
44445d86 | 646 | CcwDevice *ccw_dev = s390_get_ccw_device(get_boot_device(0), NULL); |
789b5a40 VM |
647 | |
648 | if (ccw_dev && | |
649 | cpu_to_be16(ccw_dev->sch->devno) == ipl->iplb.ccw.devno && | |
650 | (ccw_dev->sch->ssid & 3) == ipl->iplb.ccw.ssid) { | |
651 | /* | |
652 | * this is the original boot device's SCSI | |
653 | * so restore IPL parameter info from it | |
654 | */ | |
655 | ipl->iplb_valid = s390_gen_initial_iplb(ipl); | |
656 | } | |
657 | } | |
76ed4b18 | 658 | if (reset_type == S390_RESET_MODIFIED_CLEAR || |
d1bb69db CB |
659 | reset_type == S390_RESET_LOAD_NORMAL || |
660 | reset_type == S390_RESET_PV) { | |
76ed4b18 CB |
661 | /* ignore -no-reboot, send no event */ |
662 | qemu_system_reset_request(SHUTDOWN_CAUSE_SUBSYSTEM_RESET); | |
663 | } else { | |
664 | qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); | |
665 | } | |
a30fb811 DH |
666 | /* as this is triggered by a CPU, make sure to exit the loop */ |
667 | if (tcg_enabled()) { | |
668 | cpu_loop_exit(cs); | |
669 | } | |
670 | } | |
671 | ||
672 | void s390_ipl_get_reset_request(CPUState **cs, enum s390_reset *reset_type) | |
673 | { | |
674 | S390IPLState *ipl = get_ipl_device(); | |
675 | ||
676 | *cs = qemu_get_cpu(ipl->reset_cpu_index); | |
677 | if (!*cs) { | |
678 | /* use any CPU */ | |
679 | *cs = first_cpu; | |
680 | } | |
681 | *reset_type = ipl->reset_type; | |
682 | } | |
683 | ||
684 | void s390_ipl_clear_reset_request(void) | |
685 | { | |
686 | S390IPLState *ipl = get_ipl_device(); | |
687 | ||
688 | ipl->reset_type = S390_RESET_EXTERNAL; | |
689 | /* use CPU 0 for full resets */ | |
690 | ipl->reset_cpu_index = 0; | |
e91e972c FZ |
691 | } |
692 | ||
118ee80f CW |
693 | static void s390_ipl_prepare_qipl(S390CPU *cpu) |
694 | { | |
695 | S390IPLState *ipl = get_ipl_device(); | |
696 | uint8_t *addr; | |
697 | uint64_t len = 4096; | |
698 | ||
85eb7c18 | 699 | addr = cpu_physical_memory_map(cpu->env.psa, &len, true); |
118ee80f CW |
700 | if (!addr || len < QIPL_ADDRESS + sizeof(QemuIplParameters)) { |
701 | error_report("Cannot set QEMU IPL parameters"); | |
702 | return; | |
703 | } | |
704 | memcpy(addr + QIPL_ADDRESS, &ipl->qipl, sizeof(QemuIplParameters)); | |
705 | cpu_physical_memory_unmap(addr, len, 1, len); | |
706 | } | |
707 | ||
c3347ed0 JF |
708 | int s390_ipl_prepare_pv_header(void) |
709 | { | |
710 | IplParameterBlock *ipib = s390_ipl_get_iplb_pv(); | |
711 | IPLBlockPV *ipib_pv = &ipib->pv; | |
712 | void *hdr = g_malloc(ipib_pv->pv_header_len); | |
713 | int rc; | |
714 | ||
715 | cpu_physical_memory_read(ipib_pv->pv_header_addr, hdr, | |
716 | ipib_pv->pv_header_len); | |
717 | rc = s390_pv_set_sec_parms((uintptr_t)hdr, | |
718 | ipib_pv->pv_header_len); | |
719 | g_free(hdr); | |
720 | return rc; | |
721 | } | |
722 | ||
723 | int s390_ipl_pv_unpack(void) | |
724 | { | |
725 | IplParameterBlock *ipib = s390_ipl_get_iplb_pv(); | |
726 | IPLBlockPV *ipib_pv = &ipib->pv; | |
727 | int i, rc = 0; | |
728 | ||
729 | for (i = 0; i < ipib_pv->num_comp; i++) { | |
730 | rc = s390_pv_unpack(ipib_pv->components[i].addr, | |
731 | TARGET_PAGE_ALIGN(ipib_pv->components[i].size), | |
732 | ipib_pv->components[i].tweak_pref); | |
733 | if (rc) { | |
734 | break; | |
735 | } | |
736 | } | |
737 | return rc; | |
738 | } | |
739 | ||
db3b2566 DH |
740 | void s390_ipl_prepare_cpu(S390CPU *cpu) |
741 | { | |
742 | S390IPLState *ipl = get_ipl_device(); | |
743 | ||
744 | cpu->env.psw.addr = ipl->start_addr; | |
745 | cpu->env.psw.mask = IPL_PSW_MASK; | |
746 | ||
747 | if (!ipl->kernel || ipl->iplb_valid) { | |
748 | cpu->env.psw.addr = ipl->bios_start_addr; | |
010d45d2 AY |
749 | if (!ipl->iplb_valid) { |
750 | ipl->iplb_valid = s390_gen_initial_iplb(ipl); | |
751 | } | |
db3b2566 | 752 | } |
f38b5b7f | 753 | if (ipl->netboot) { |
f9734d5d | 754 | load_netboot_image(&error_fatal); |
118ee80f | 755 | ipl->qipl.netboot_start_addr = cpu_to_be64(ipl->start_addr); |
f38b5b7f | 756 | } |
26b2a2a4 | 757 | s390_ipl_set_boot_menu(ipl); |
118ee80f | 758 | s390_ipl_prepare_qipl(cpu); |
db3b2566 DH |
759 | } |
760 | ||
e674a49a CB |
761 | static void s390_ipl_reset(DeviceState *dev) |
762 | { | |
763 | S390IPLState *ipl = S390_IPL(dev); | |
ba1509c0 | 764 | |
a30fb811 | 765 | if (ipl->reset_type != S390_RESET_REIPL) { |
e91e972c | 766 | ipl->iplb_valid = false; |
6aed9589 | 767 | memset(&ipl->iplb, 0, sizeof(IplParameterBlock)); |
e91e972c | 768 | } |
e674a49a CB |
769 | } |
770 | ||
771 | static void s390_ipl_class_init(ObjectClass *klass, void *data) | |
772 | { | |
773 | DeviceClass *dc = DEVICE_CLASS(klass); | |
e674a49a | 774 | |
04fccf10 | 775 | dc->realize = s390_ipl_realize; |
4f67d30b | 776 | device_class_set_props(dc, s390_ipl_properties); |
e674a49a | 777 | dc->reset = s390_ipl_reset; |
2e13fbe4 | 778 | dc->vmsd = &vmstate_ipl; |
b4ab4572 | 779 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
0d4fa499 TH |
780 | /* Reason: Loads the ROMs and thus can only be used one time - internally */ |
781 | dc->user_creatable = false; | |
e674a49a CB |
782 | } |
783 | ||
49973ebc | 784 | static const TypeInfo s390_ipl_info = { |
e674a49a | 785 | .class_init = s390_ipl_class_init, |
04fccf10 DH |
786 | .parent = TYPE_DEVICE, |
787 | .name = TYPE_S390_IPL, | |
e674a49a CB |
788 | .instance_size = sizeof(S390IPLState), |
789 | }; | |
790 | ||
791 | static void s390_ipl_register_types(void) | |
792 | { | |
793 | type_register_static(&s390_ipl_info); | |
794 | } | |
795 | ||
796 | type_init(s390_ipl_register_types) |