kernel_optimize_test/arch
Fenghua Yu 4ed0d3e6c6 Intel IOMMU Pass Through Support
The patch adds kernel parameter intel_iommu=pt to set up pass through
mode in context mapping entry. This disables DMAR in linux kernel; but
KVM still runs on VT-d and interrupt remapping still works.

In this mode, kernel uses swiotlb for DMA API functions but other VT-d
functionalities are enabled for KVM. KVM always uses multi level
translation page table in VT-d. By default, pass though mode is disabled
in kernel.

This is useful when people don't want to enable VT-d DMAR in kernel but
still want to use KVM and interrupt remapping for reasons like DMAR
performance concern or debug purpose.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: Weidong Han <weidong@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-29 06:54:34 +01:00
..
alpha FRV: Fix the section attribute on UP DECLARE_PER_CPU() 2009-04-21 19:39:59 -07:00
arm clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
avr32 clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
blackfin clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
cris tty: Use the generic RS485 ioctl on CRIS 2009-04-07 08:44:05 -07:00
frv frv: insert PCI root bus resources for the MB93090 devel motherboard 2009-04-21 13:41:50 -07:00
h8300 Get rid of final remnants of include/asm-$(ARCH) 2009-04-17 09:59:27 -07:00
ia64 Intel IOMMU Pass Through Support 2009-04-29 06:54:34 +01:00
m32r m32r: move include/asm-m32r/* to arch/m32r/include/asm/ 2009-04-17 10:50:23 +09:00
m68k Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-04-05 11:04:19 -07:00
m68knommu clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
microblaze microblaze: remove duplicated #include's 2009-04-14 11:09:15 +02:00
mips clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
mn10300 MN10300: Stop gcc from generating uninitialised variable warnings after BUG() 2009-04-15 13:55:13 -07:00
parisc Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2009-04-03 09:52:04 -07:00
powerpc clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
s390 clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
sh clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
sparc clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
um uml: kill a kconfig warning 2009-04-21 13:41:50 -07:00
x86 Intel IOMMU Pass Through Support 2009-04-29 06:54:34 +01:00
xtensa Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-04-05 11:04:19 -07:00
.gitignore
Kconfig mutex: have non-spinning mutexes on s390 by default 2009-04-09 19:28:24 +02:00