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Commit 99809963 authored by Jeff Chua's avatar Jeff Chua Committed by Ingo Molnar
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x86: make sparsemem more available 



With CONFIG_X86_PC, I can set CONFIG_SPARSEMEM=y.

With CONFIG_X86_GENERICARCH, CONFIG_SPARSEMEM depends on CONFIG_NUMA.

I'm using the patch below to enable sparsemem instead of flatmem.
System booted and is running.

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent f2556896

arch/x86/Kconfig

+2 −2
Original line number Diff line number Diff line
@@ -1035,7 +1035,7 @@ config HAVE_ARCH_ALLOC_REMAP 


config ARCH_FLATMEM_ENABLE

	def_bool y

	depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && X86_PC && !NUMA

	depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && !NUMA



config ARCH_DISCONTIGMEM_ENABLE

	def_bool y
@@ -1051,7 +1051,7 @@ config ARCH_SPARSEMEM_DEFAULT 


config ARCH_SPARSEMEM_ENABLE

	def_bool y

	depends on X86_64 || NUMA || (EXPERIMENTAL && X86_PC)

	depends on X86_64 || NUMA || (EXPERIMENTAL && X86_PC) || X86_GENERICARCH

	select SPARSEMEM_STATIC if X86_32

	select SPARSEMEM_VMEMMAP_ENABLE if X86_64