aperture_pfn_start 68 arch/x86/kernel/aperture_64.c static unsigned long aperture_pfn_start, aperture_page_count; aperture_pfn_start 72 arch/x86/kernel/aperture_64.c return likely((pfn < aperture_pfn_start) || aperture_pfn_start 73 arch/x86/kernel/aperture_64.c (pfn >= aperture_pfn_start + aperture_page_count)); aperture_pfn_start 78 arch/x86/kernel/aperture_64.c aperture_pfn_start = aper_base >> PAGE_SHIFT;