X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fipxe%2Fsrc%2Farch%2Fi386%2Finterface%2Fpcbios%2Fbios_reboot.c;fp=qemu%2Froms%2Fipxe%2Fsrc%2Farch%2Fi386%2Finterface%2Fpcbios%2Fbios_reboot.c;h=68546b2e54e984738f58e8a15603d5fcba3c94ec;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_reboot.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_reboot.c new file mode 100644 index 000000000..68546b2e5 --- /dev/null +++ b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_reboot.c @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2010 Michael Brown . + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +/** @file + * + * Standard PC-BIOS reboot mechanism + * + */ + +#include +#include +#include + +/** + * Reboot system + * + * @v warm Perform a warm reboot + */ +static void bios_reboot ( int warm ) { + uint16_t flag; + + /* Configure BIOS for cold/warm reboot */ + flag = ( warm ? BDA_REBOOT_WARM : 0 ); + put_real ( flag, BDA_SEG, BDA_REBOOT ); + + /* Jump to system reset vector */ + __asm__ __volatile__ ( REAL_CODE ( "ljmp $0xf000, $0xfff0" ) : : ); +} + +PROVIDE_REBOOT ( pcbios, reboot, bios_reboot );