Commit 1d8a12d1 authored Oct 10, 2015 by Linus Torvalds

swiotlb

Pull swiotlb fixlet from Konrad Rzeszutek Wilk:
 "Enable the SWIOTLB under 32-bit PAE kernels.

  Nowadays most distros enable this due to CONFIG_HYPERVISOR|XEN=y which
  select SWIOTLB.  But for those that are not interested in
  virtualization and wanting to use 32-bit PAE kernels and wanting to
  have working DMA operations - this configures it for them"

* 'stable/for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb:
  swiotlb: Enable it under x86 PAE

parents daf3761c 9d99c712

arch/x86/Kconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -1308,6 +1308,7 @@ config HIGHMEM
		config X86_PAE
		bool "PAE (Physical Address Extension) Support"
		depends on X86_32 && !HIGHMEM4G
		select SWIOTLB
		---help---
		PAE is required for NX support, and furthermore enables
		larger swapspace support for non-overcommit purposes. It

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