57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/*
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* Copyright (C) 2007-2011 Apple Inc. All rights reserved.
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*
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* This document is the property of Apple Inc.
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* It is considered confidential and proprietary.
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*
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* This document may not be reproduced or transmitted in any form,
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* in whole or in part, without the express written permission of
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* Apple Inc.
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*/
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#include <arch.h>
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#include <lib/heap.h>
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#include <lib/profile.h>
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#include <lib/libc.h>
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#include <platform.h>
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#include <sys.h>
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#include <sys/boot.h>
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typedef void (* entry_func_t)(void *, int, int, int);
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typedef void (* trampoline_func_t)(entry_func_t, void *);
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/* quiesce hardware and jump into a new image */
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void prepare_and_jump(enum boot_target boot, void *ptr, void *arg)
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{
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entry_func_t entry = (entry_func_t)(uintptr_t)ptr;
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trampoline_func_t trampoline = (trampoline_func_t)platform_get_boot_trampoline();
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/* keep alive a little longer */
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platform_watchdog_tickle();
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/* do whatever prep needs to happen before jumping into something */
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platform_bootprep(boot);
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/* make sure timers and whatnot aren't running */
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platform_quiesce_hardware(boot);
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/* verify we haven't had any heap corruption */
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heap_verify();
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/* make sure interrupts are disabled */
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enter_critical_section();
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/* Copy profile buffer from SRAM into panic RAM */
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PROFILE_HANDOFF();
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/* quiesce the cpu, disabling the mmu and caches */
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arch_cpu_quiesce();
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if (trampoline != NULL)
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trampoline(entry, arg);
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else
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entry(arg, 0, 0, 0);
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/* should not get here */
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for(;;) ;
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}
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