| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 2 | /* ----------------------------------------------------------------------- |
| 3 | * |
| 4 | * Copyright 2009 Intel Corporation; author H. Peter Anvin |
| 5 | * |
| 6 | * ----------------------------------------------------------------------- */ |
| 7 | |
| 8 | /* |
| 9 | * Simple helper function for initializing a register set. |
| 10 | * |
| 11 | * Note that this sets EFLAGS_CF in the input register set; this |
| 12 | * makes it easier to catch functions which do nothing but don't |
| 13 | * explicitly set CF. |
| 14 | */ |
| 15 | |
| 16 | #include "boot.h" |
| 17 | #include "string.h" |
| 18 | |
| 19 | void initregs(struct biosregs *reg) |
| 20 | { |
| 21 | memset(reg, 0, sizeof(*reg)); |
| 22 | reg->eflags |= X86_EFLAGS_CF; |
| 23 | reg->ds = ds(); |
| 24 | reg->es = ds(); |
| 25 | reg->fs = fs(); |
| 26 | reg->gs = gs(); |
| 27 | } |