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arch/x86: Remove unused protected_mode_jump API

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This patch removes all instances of the `protected_mode_jump` API and
its associated header file.

The API is no longer used by any code within the tree.

BUG=b:332759882
TEST=Built and booted 64-bit coreboot with 32-bit payload successfully.

Change-Id: I3eb31b09c92512338ccc540f60289960bd6bf439
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82372
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Subrata Banik
2024-05-12 17:21:58 +00:00
committed by Felix Held
parent 06b25c26a1
commit d05611d264
4 changed files with 0 additions and 54 deletions
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1
src/arch/x86/Makefile.mk
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@@ -253,7 +253,6 @@ ramstage-$(CONFIG_ACPI_BERT) += acpi_bert_storage.c
ramstage-y += boot.c
ramstage-y += post.c
ramstage-y += c_start.S
ramstage-y += c_exit.S
ramstage-y += cpu.c
ramstage-y += cpu_common.c
ramstage-$(CONFIG_DEBUG_HW_BREAKPOINTS) += breakpoint.c

1
src/arch/x86/boot.c
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@@ -1,6 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <arch/boot/boot.h>
#include <arch/cpu.h>
#include <commonlib/helpers.h>
#include <console/console.h>

36
src/arch/x86/c_exit.S
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@@ -1,36 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <arch/ram_segs.h>
#include <cpu/x86/cr.h>
#if ENV_X86_64
/*
* Functions to handle mode switches from long mode to protected
* mode.
*/
.text
.code64
.section ".text.protected_mode_jump", "ax", @progbits
.globl protected_mode_jump
protected_mode_jump:
push %rbp
mov %rsp, %rbp
/* Arguments to stack */
push %rdi
push %rsi
#include <cpu/x86/64bit/exit32.inc>
movl -8(%ebp), %eax /* Function to call */
movl -16(%ebp), %ebx /* Argument 0 */
/* Align the stack */
andl $0xFFFFFFF0, %esp
subl $12, %esp
pushl %ebx /* Argument 0 */
jmp *%eax
#endif

16
src/arch/x86/include/arch/boot/boot.h
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@@ -1,16 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef X86_BOOT_H
#define X86_BOOT_H
#include <types.h>
/*
* Jump to function in protected mode.
* @arg func_ptr Function to jump to in protected mode
* @arg Argument to pass to called function
*
* @noreturn
*/
void protected_mode_jump(uint32_t func_ptr, uint32_t argument);
#endif /* X86_BOOT_H */