0308313e07
Change-Id: I78ecd15716169b58cf6696ff8c5069ac2d5038ef Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47967 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
34 lines
644 B
PHP
34 lines
644 B
PHP
/* SPDX-License-Identifier: GPL-2.0-only */
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/* For starting coreboot in protected mode */
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#include <arch/rom_segs.h>
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#include <cpu/x86/post_code.h>
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.code32
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/*
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* When we come here we are in protected mode.
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* NOTE aligned to 4 so that we are sure that the prefetch
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* cache will be reloaded.
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*/
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.align 4
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.globl __protected_start
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__protected_start:
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/* Save the BIST value */
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movl %eax, %ebp
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#if !CONFIG(NO_EARLY_BOOTBLOCK_POSTCODES)
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post_code(POST_ENTER_PROTECTED_MODE)
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#endif
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movw $ROM_DATA_SEG, %ax
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movw %ax, %ds
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movw %ax, %es
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movw %ax, %ss
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movw %ax, %fs
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movw %ax, %gs
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/* Restore the BIST value to %eax */
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movl %ebp, %eax
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