Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 2be69c79 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

x86/iommu: add IOMMU_STRESS Kconfig entry 



This Kconfig option is intended to enable various code paths or
parameters in IOMMU implementations to stress test the code and/or the
hardware. This can also be done by disabling optimizations in the code
when this option is switched on.

Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
parent b3b99ef8

arch/x86/Kconfig.debug

+8 −0
Original line number Diff line number Diff line
@@ -159,6 +159,14 @@ config IOMMU_DEBUG 
	  options. See Documentation/x86_64/boot-options.txt for more

	  details.



config IOMMU_STRESS

	bool "Enable IOMMU stress-test mode"

	---help---

	  This option disables various optimizations in IOMMU related

	  code to do real stress testing of the IOMMU code. This option

	  will cause a performance drop and should only be enabled for

	  testing.



config IOMMU_LEAK

	bool "IOMMU leak tracing"

	depends on IOMMU_DEBUG && DMA_API_DEBUG