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Terminate UNDI and PXE before launching the payload to avoid problems

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with DMA.

	* grub-core/commands/boot.c (grub_loader_noreturn): Rename to ...
	(grub_loader_flags): ... this. All users updated.
	(grub_loader_boot): Check for GRUB_LOADER_FLAG_NORETURN.
	* grub-core/loader/i386/pc/pxechainloader.c (grub_cmd_pxechain): Mark
	loader as GRUB_LOADER_FLAG_PXE_NOT_UNLOAD.
	* grub-core/net/drivers/i386/pc/pxe.c (grub_pxe_shutdown): New
	function.
	(grub_pxe_restore): Likewise.
	(fini_hnd): New var.
	(GRUB_MOD_INIT): Register shutdown hook.
	(GRUB_MOD_FINI): Shutdown and unregister shutdown hook.
	* include/grub/loader.h (GRUB_LOADER_FLAG_NORETURN): New const.
	(GRUB_LOADER_FLAG_PXE_NOT_UNLOAD): Likewise.
	(grub_loader_set): Rename second argument to flags.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2012-04-11 22:32:31 +02:00
parent 851ffadac2
commit 3c491b479c
5 changed files with 75 additions and 12 deletions
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13
include/grub/loader.h
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@ -28,11 +28,16 @@
/* Check if a loader is loaded. */
int EXPORT_FUNC (grub_loader_is_loaded) (void);
/* Set loader functions. NORETURN must be set to true, if BOOT won't return
to the original state. */
/* Set loader functions. */
enum
{
GRUB_LOADER_FLAG_NORETURN = 1,
GRUB_LOADER_FLAG_PXE_NOT_UNLOAD = 2,
};
void EXPORT_FUNC (grub_loader_set) (grub_err_t (*boot) (void),
grub_err_t (*unload) (void),
int noreturn);
grub_err_t (*unload) (void),
int flags);
/* Unset current loader, if any. */
void EXPORT_FUNC (grub_loader_unset) (void);