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efi_loader: describe returning of control
Provide a sober description of how control can be returned by a UEFI binary. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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@ -2933,10 +2933,10 @@ efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle,
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ret = EFI_CALL(image_obj->entry(image_handle, &systab));
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/*
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* Usually UEFI applications call Exit() instead of returning.
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* But because the world doesn't consist of ponies and unicorns,
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* we're happy to emulate that behavior on behalf of a payload
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* that forgot.
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* Control is returned from a started UEFI image either by calling
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* Exit() (where exit data can be provided) or by simply returning from
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* the entry point. In the latter case call Exit() on behalf of the
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* image.
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*/
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return EFI_CALL(systab.boottime->exit(image_handle, ret, 0, NULL));
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}
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