| /* 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 |
