https://github.com/torvalds/linux
Raw File
Tip revision: 13a7a6ac0a11197edcd0f756a035f472b42cdf8b authored by Linus Torvalds on 03 March 2015, 17:04:59 UTC
Linux 4.0-rc2
Tip revision: 13a7a6a
regs.c
/* -----------------------------------------------------------------------
 *
 *   Copyright 2009 Intel Corporation; author H. Peter Anvin
 *
 *   This file is part of the Linux kernel, and is made available under
 *   the terms of the GNU General Public License version 2 or (at your
 *   option) any later version; incorporated herein by reference.
 *
 * ----------------------------------------------------------------------- */

/*
 * Simple helper function for initializing a register set.
 *
 * Note that this sets EFLAGS_CF in the input register set; this
 * makes it easier to catch functions which do nothing but don't
 * explicitly set CF.
 */

#include "boot.h"
#include "string.h"

void initregs(struct biosregs *reg)
{
	memset(reg, 0, sizeof *reg);
	reg->eflags |= X86_EFLAGS_CF;
	reg->ds = ds();
	reg->es = ds();
	reg->fs = fs();
	reg->gs = gs();
}
back to top