Attachment #51665 for bug #82682




	depends on HIGHMEM64G
	default y

config 1GLOWMEM
	bool "1Gb Low Memory Support"
	depends on NOHIGHMEM
	default n
	help
	 Linux on i386 architecture normally supports just 896Mb without
	 enabling HIGHMEM support. This option will enable you to support 1Gb
	 of ram without needing to enable HIGHMEM support. The advantage of
	 this is that you don't need the extra overhead of high memory support
	 to utilise the last 128Mb of ram. However this may break drivers such
	 as vmware.
	 
	 If unsure say "no"

# Common NUMA Features
config NUMA
	bool "Numa Memory Allocation and Scheduler Support"





#endif /* __ASSEMBLY__ */

#ifdef CONFIG_1GLOWMEM
#ifdef __ASSEMBLY__
#define __PAGE_OFFSET		(0xB0000000)
#else
#define __PAGE_OFFSET		(0xB0000000UL)
#endif /* __ASSEMBLY__ */
#else
#ifdef __ASSEMBLY__
#define __PAGE_OFFSET		(0xC0000000)
#else
#define __PAGE_OFFSET		(0xC0000000UL)
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_1GLOWMEM */

#define PAGE_OFFSET		((unsigned long)__PAGE_OFFSET)
#define VMALLOC_RESERVE		((unsigned long)__VMALLOC_RESERVE)

Return to bug 82682

Lines 730-735 config X86_PAE Link Here

(-)arch/i386/Kconfig (+14 lines)
730	depends on HIGHMEM64G	730	depends on HIGHMEM64G
731	default y	731	default y
732		732
		733	config 1GLOWMEM
		734	bool "1Gb Low Memory Support"
		735	depends on NOHIGHMEM
		736	default n
		737	help
		738	Linux on i386 architecture normally supports just 896Mb without
		739	enabling HIGHMEM support. This option will enable you to support 1Gb
		740	of ram without needing to enable HIGHMEM support. The advantage of
		741	this is that you don't need the extra overhead of high memory support
		742	to utilise the last 128Mb of ram. However this may break drivers such
		743	as vmware.
		744
		745	If unsure say "no"
		746
733	# Common NUMA Features	747	# Common NUMA Features
734	config NUMA	748	config NUMA
735	bool "Numa Memory Allocation and Scheduler Support"	749	bool "Numa Memory Allocation and Scheduler Support"

Lines 120-131 extern int sysctl_legacy_va_layout; Link Here

(-)include/asm-i386/page.h (-2 / +9 lines)
120		120
121	#endif /* __ASSEMBLY__ */	121	#endif /* __ASSEMBLY__ */
122		122
		123	#ifdef CONFIG_1GLOWMEM
		124	#ifdef __ASSEMBLY__
		125	#define __PAGE_OFFSET (0xB0000000)
		126	#else
		127	#define __PAGE_OFFSET (0xB0000000UL)
		128	#endif /* __ASSEMBLY__ */
		129	#else
123	#ifdef __ASSEMBLY__	130	#ifdef __ASSEMBLY__
124	#define __PAGE_OFFSET (0xC0000000)	131	#define __PAGE_OFFSET (0xC0000000)
125	#else	132	#else
126	#define __PAGE_OFFSET (0xC0000000UL)	133	#define __PAGE_OFFSET (0xC0000000UL)
127	#endif	134	#endif /* __ASSEMBLY__ */
128		135	#endif /* CONFIG_1GLOWMEM */
129		136
130	#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET)	137	#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET)
131	#define VMALLOC_RESERVE ((unsigned long)__VMALLOC_RESERVE)	138	#define VMALLOC_RESERVE ((unsigned long)__VMALLOC_RESERVE)