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author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_exit_hook.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_exit_hook.c')
-rw-r--r-- | qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_exit_hook.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_exit_hook.c b/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_exit_hook.c new file mode 100644 index 000000000..9d1896507 --- /dev/null +++ b/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_exit_hook.c @@ -0,0 +1,61 @@ +/** @file + * + * PXE exit hook + * + */ + +/* + * Copyright (C) 2010 Shao Miller <shao.miller@yrdsb.edu.on.ca>. + * + * 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 ); + +#include <stdint.h> +#include <realmode.h> +#include <pxe.h> + +/** PXE exit hook */ +extern segoff_t __data16 ( pxe_exit_hook ); +#define pxe_exit_hook __use_data16 ( pxe_exit_hook ) + +/** + * FILE EXIT HOOK + * + * @v file_exit_hook Pointer to a struct + * s_PXENV_FILE_EXIT_HOOK + * @v s_PXENV_FILE_EXIT_HOOK::Hook SEG16:OFF16 to jump to + * @ret #PXENV_EXIT_SUCCESS Successfully set hook + * @ret #PXENV_EXIT_FAILURE We're not an NBP build + * @ret s_PXENV_FILE_EXIT_HOOK::Status PXE status code + * + */ +static PXENV_EXIT_t +pxenv_file_exit_hook ( struct s_PXENV_FILE_EXIT_HOOK *file_exit_hook ) { + DBG ( "PXENV_FILE_EXIT_HOOK" ); + + /* We'll jump to the specified SEG16:OFF16 during exit */ + pxe_exit_hook.segment = file_exit_hook->Hook.segment; + pxe_exit_hook.offset = file_exit_hook->Hook.offset; + file_exit_hook->Status = PXENV_STATUS_SUCCESS; + return PXENV_EXIT_SUCCESS; +} + +/** PXE file API */ +struct pxe_api_call pxe_file_api_exit_hook __pxe_api_call = + PXE_API_CALL ( PXENV_FILE_EXIT_HOOK, pxenv_file_exit_hook, + struct s_PXENV_FILE_EXIT_HOOK ); |