boot.c (17a5bbb44df9a4a79166332bc26e2d8ca6bd8fa8) boot.c (4cbca7d9b4de5ecf6a8447b2eba89d591717f6c4)
1/*
2 * ARM kernel loader.
3 *
4 * Copyright (c) 2006-2007 CodeSourcery.
5 * Written by Paul Brook
6 *
7 * This code is licensed under the GPL.
8 */

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380 s = info->kernel_cmdline;
381 if (s) {
382 cpu_physical_memory_write(p, s, strlen(s) + 1);
383 } else {
384 WRITE_WORD(p, 0);
385 }
386}
387
1/*
2 * ARM kernel loader.
3 *
4 * Copyright (c) 2006-2007 CodeSourcery.
5 * Written by Paul Brook
6 *
7 * This code is licensed under the GPL.
8 */

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380 s = info->kernel_cmdline;
381 if (s) {
382 cpu_physical_memory_write(p, s, strlen(s) + 1);
383 } else {
384 WRITE_WORD(p, 0);
385 }
386}
387
388static void fdt_add_psci_node(void *fdt)
389{
390 uint32_t cpu_suspend_fn;
391 uint32_t cpu_off_fn;
392 uint32_t cpu_on_fn;
393 uint32_t migrate_fn;
394 ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(0));
395 const char *psci_method;
396 int64_t psci_conduit;
397
398 psci_conduit = object_property_get_int(OBJECT(armcpu),
399 "psci-conduit",
400 &error_abort);
401 switch (psci_conduit) {
402 case QEMU_PSCI_CONDUIT_DISABLED:
403 return;
404 case QEMU_PSCI_CONDUIT_HVC:
405 psci_method = "hvc";
406 break;
407 case QEMU_PSCI_CONDUIT_SMC:
408 psci_method = "smc";
409 break;
410 default:
411 g_assert_not_reached();
412 }
413
414 qemu_fdt_add_subnode(fdt, "/psci");
415 if (armcpu->psci_version == 2) {
416 const char comp[] = "arm,psci-0.2\0arm,psci";
417 qemu_fdt_setprop(fdt, "/psci", "compatible", comp, sizeof(comp));
418
419 cpu_off_fn = QEMU_PSCI_0_2_FN_CPU_OFF;
420 if (arm_feature(&armcpu->env, ARM_FEATURE_AARCH64)) {
421 cpu_suspend_fn = QEMU_PSCI_0_2_FN64_CPU_SUSPEND;
422 cpu_on_fn = QEMU_PSCI_0_2_FN64_CPU_ON;
423 migrate_fn = QEMU_PSCI_0_2_FN64_MIGRATE;
424 } else {
425 cpu_suspend_fn = QEMU_PSCI_0_2_FN_CPU_SUSPEND;
426 cpu_on_fn = QEMU_PSCI_0_2_FN_CPU_ON;
427 migrate_fn = QEMU_PSCI_0_2_FN_MIGRATE;
428 }
429 } else {
430 qemu_fdt_setprop_string(fdt, "/psci", "compatible", "arm,psci");
431
432 cpu_suspend_fn = QEMU_PSCI_0_1_FN_CPU_SUSPEND;
433 cpu_off_fn = QEMU_PSCI_0_1_FN_CPU_OFF;
434 cpu_on_fn = QEMU_PSCI_0_1_FN_CPU_ON;
435 migrate_fn = QEMU_PSCI_0_1_FN_MIGRATE;
436 }
437
438 /* We adopt the PSCI spec's nomenclature, and use 'conduit' to refer
439 * to the instruction that should be used to invoke PSCI functions.
440 * However, the device tree binding uses 'method' instead, so that is
441 * what we should use here.
442 */
443 qemu_fdt_setprop_string(fdt, "/psci", "method", psci_method);
444
445 qemu_fdt_setprop_cell(fdt, "/psci", "cpu_suspend", cpu_suspend_fn);
446 qemu_fdt_setprop_cell(fdt, "/psci", "cpu_off", cpu_off_fn);
447 qemu_fdt_setprop_cell(fdt, "/psci", "cpu_on", cpu_on_fn);
448 qemu_fdt_setprop_cell(fdt, "/psci", "migrate", migrate_fn);
449}
450
388/**
389 * load_dtb() - load a device tree binary image into memory
390 * @addr: the address to load the image at
391 * @binfo: struct describing the boot environment
392 * @addr_limit: upper limit of the available memory area at @addr
393 *
394 * Load a device tree supplied by the machine or by the user with the
395 * '-dtb' command line option, and put it at offset @addr in target

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536 rc = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end",
537 binfo->initrd_start + binfo->initrd_size);
538 if (rc < 0) {
539 fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n");
540 goto fail;
541 }
542 }
543
451/**
452 * load_dtb() - load a device tree binary image into memory
453 * @addr: the address to load the image at
454 * @binfo: struct describing the boot environment
455 * @addr_limit: upper limit of the available memory area at @addr
456 *
457 * Load a device tree supplied by the machine or by the user with the
458 * '-dtb' command line option, and put it at offset @addr in target

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599 rc = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end",
600 binfo->initrd_start + binfo->initrd_size);
601 if (rc < 0) {
602 fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n");
603 goto fail;
604 }
605 }
606
607 fdt_add_psci_node(fdt);
608
544 if (binfo->modify_dtb) {
545 binfo->modify_dtb(binfo, fdt);
546 }
547
548 qemu_fdt_dumpdtb(fdt, size);
549
550 /* Put the DTB into the memory map as a ROM image: this will ensure
551 * the DTB is copied again upon reset, even if addr points into RAM.

--- 533 unchanged lines hidden --- 		609 if (binfo->modify_dtb) {
610 binfo->modify_dtb(binfo, fdt);
611 }
612
613 qemu_fdt_dumpdtb(fdt, size);
614
615 /* Put the DTB into the memory map as a ROM image: this will ensure
616 * the DTB is copied again upon reset, even if addr points into RAM.

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