04 Apr, 2009
3 commits
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When extended interrupt mode (x2apic mode) is not supported in a
system, it must set compatibility format interrupt to bypass
interrupt remapping, otherwise compatibility format interrupts
will be blocked.This will be used when interrupt remapping is enabled while x2apic
is not supported.Signed-off-by: Weidong Han
Acked-by: Ingo Molnar
Signed-off-by: David Woodhouse -
This patch implements the suspend and resume feature for Intel IOMMU
DMAR. It hooks to kernel suspend and resume interface. When suspend happens, it
saves necessary hardware registers. When resume happens, it restores the
registers and restarts IOMMU by enabling translation, setting up root entry, and
re-enabling queued invalidation.Signed-off-by: Fenghua Yu
Acked-by: Ingo Molnar
Signed-off-by: David Woodhouse -
* git://git.infradead.org/iommu-2.6:
intel-iommu: Fix address wrap on 32-bit kernel.
intel-iommu: Enable DMAR on 32-bit kernel.
intel-iommu: fix PCI device detach from virtual machine
intel-iommu: VT-d page table to support snooping control bit
iommu: Add domain_has_cap iommu_ops
intel-iommu: Snooping control supportFixed trivial conflicts in arch/x86/Kconfig and drivers/pci/intel-iommu.c
31 Mar, 2009
1 commit
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* 'iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (60 commits)
dma-debug: make memory range checks more consistent
dma-debug: warn of unmapping an invalid dma address
dma-debug: fix dma_debug_add_bus() definition for !CONFIG_DMA_API_DEBUG
dma-debug/x86: register pci bus for dma-debug leak detection
dma-debug: add a check dma memory leaks
dma-debug: add checks for kernel text and rodata
dma-debug: print stacktrace of mapping path on unmap error
dma-debug: Documentation update
dma-debug: x86 architecture bindings
dma-debug: add function to dump dma mappings
dma-debug: add checks for sync_single_sg_*
dma-debug: add checks for sync_single_range_*
dma-debug: add checks for sync_single_*
dma-debug: add checking for [alloc|free]_coherent
dma-debug: add add checking for map/unmap_sg
dma-debug: add checking for map/unmap_page/single
dma-debug: add core checking functions
dma-debug: add debugfs interface
dma-debug: add kernel command line parameters
dma-debug: add initialization code
...Fix trivial conflicts due to whitespace changes in arch/x86/kernel/pci-nommu.c
24 Mar, 2009
1 commit
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Snooping control enabled IOMMU to guarantee DMA cache coherency and thus reduce
software effort (VMM) in maintaining effective memory type.Signed-off-by: Sheng Yang
Signed-off-by: David Woodhouse
18 Mar, 2009
2 commits
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Impact: new interfaces (not yet used)
Routines for disabling queued invalidation and interrupt remapping.
Signed-off-by: Suresh Siddha
Signed-off-by: H. Peter Anvin -
Impact: interface augmentation (not yet used)
Enable fault handling flow for intr-remapping aswell. Fault handling
code now shared by both dma-remapping and intr-remapping.Signed-off-by: Suresh Siddha
Signed-off-by: H. Peter Anvin
05 Mar, 2009
1 commit
09 Feb, 2009
1 commit
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When hardware detects any error with a descriptor from the invalidation
queue, it stops fetching new descriptors from the queue until software
clears the Invalidation Queue Error bit in the Fault Status register.
Following fix handles the IQE so the kernel won't be trapped in an
infinite loop.Signed-off-by: Yu Zhao
Signed-off-by: David Woodhouse
29 Jan, 2009
1 commit
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The dma ops unification enables X86 and IA64 to share intel_dma_ops so
we can make dma mapping functions static. This also remove unused
intel_map_single().Signed-off-by: FUJITA Tomonori
Signed-off-by: Ingo Molnar
06 Jan, 2009
1 commit
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This converts X86 and IA64 to use include/linux/dma-mapping.h.
It's a bit large but pretty boring. The major change for X86 is
converting 'int dir' to 'enum dma_data_direction dir' in DMA mapping
operations. The major changes for IA64 is using map_page and
unmap_page instead of map_single and unmap_single.Signed-off-by: FUJITA Tomonori
Acked-by: Tony Luck
Signed-off-by: Ingo Molnar
03 Jan, 2009
8 commits
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Signed-off-by: Joerg Roedel
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Signed-off-by: Joerg Roedel
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Signed-off-by: Joerg Roedel
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Signed-off-by: Joerg Roedel
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Signed-off-by: Joerg Roedel
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These APIs are used by KVM to use VT-d
Signed-off-by: Weidong Han
Signed-off-by: Joerg Roedel -
"SAGAW" capability may be different across iommus. Use a default agaw, but if default agaw is not supported in some iommus, choose a less supported agaw.
Signed-off-by: Weidong Han
Signed-off-by: Joerg Roedel -
The seg, saved_msg and sysdev fields appear to be unused since
before the code was first merged.linux/msi.h is not needed in linux/intel-iommu.h anymore since
there is no longer a reference to struct msi_msg. The MSI code
in drivers/pci/intel-iommu.c still has linux/msi.h included
via linux/dmar.h.linux/sysdev.h isn't needed because there is no reference to
struct sys_device.Signed-off-by: Mark McLoughlin
Signed-off-by: David Woodhouse
18 Oct, 2008
1 commit
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The current Intel IOMMU code assumes that both host page size and Intel
IOMMU page size are 4KiB. The first patch supports variable page size.
This provides support for IA64 which has multiple page sizes.This patch also adds some other code hooks for IA64 platform including
DMAR_OPERATION_TIMEOUT definition.[dwmw2: some cleanup]
Signed-off-by: Fenghua Yu
Signed-off-by: Tony Luck
Signed-off-by: David Woodhouse
17 Oct, 2008
2 commits
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If queued invalidation interface is available and enabled, queued invalidation
interface will be used instead of the register based interface.According to Vt-d2 specification, when queued invalidation is enabled,
invalidation command submit works only through invalidation queue and not
through the command registers interface.Signed-off-by: Youquan Song
Signed-off-by: Suresh Siddha
Signed-off-by: David Woodhouse -
Implement context cache invalidate and IOTLB invalidation using
queued invalidation interface. This interface will be used by
DMA remapping, when queued invalidation is supported.Signed-off-by: Youquan Song
Signed-off-by: Suresh Siddha
Signed-off-by: David Woodhouse
15 Oct, 2008
1 commit
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This patch extends the VT-d driver to support KVM
[Ben: fixed memory pinning]
[avi: move dma_remapping.h as well]Signed-off-by: Kay, Allen M
Signed-off-by: Weidong Han
Signed-off-by: Ben-Ami Yassour
Signed-off-by: Amit Shah
Acked-by: Mark Gross
Signed-off-by: Avi Kivity
