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7a734e7d PA |
1 | /* ----------------------------------------------------------------------- |
2 | * | |
3 | * Copyright 2009 Intel Corporation; author H. Peter Anvin | |
4 | * | |
5 | * This file is part of the Linux kernel, and is made available under | |
6 | * the terms of the GNU General Public License version 2 or (at your | |
7 | * option) any later version; incorporated herein by reference. | |
8 | * | |
9 | * ----------------------------------------------------------------------- */ | |
10 | ||
11 | /* | |
12 | * Simple helper function for initializing a register set. | |
13 | * | |
14 | * Note that this sets EFLAGS_CF in the input register set; this | |
15 | * makes it easier to catch functions which do nothing but don't | |
16 | * explicitly set CF. | |
17 | */ | |
18 | ||
19 | #include "boot.h" | |
20 | ||
21 | void initregs(struct biosregs *reg) | |
22 | { | |
23 | memset(reg, 0, sizeof *reg); | |
24 | reg->eflags |= X86_EFLAGS_CF; | |
25 | reg->ds = ds(); | |
26 | reg->es = ds(); | |
27 | reg->fs = fs(); | |
28 | reg->gs = gs(); | |
29 | } |