18 May, 2009
1 commit
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Enable the device IOTLB (i.e. ATS) for both the bare metal and KVM
environments.Signed-off-by: Yu Zhao
Signed-off-by: David Woodhouse
29 Apr, 2009
1 commit
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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
Acked-by: Weidong Han
Signed-off-by: David Woodhouse
24 Mar, 2009
1 commit
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The user can request to enable snooping control through VT-d page table.
Signed-off-by: Sheng Yang
Signed-off-by: David Woodhouse
04 Jan, 2009
1 commit
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dmar.o can be built in the CONFIG_INTR_REMAP=y case but
iommu_calculate_agaw() is only available if VT-d is built as well.So create an inline version of iommu_calculate_agaw() for the
!CONFIG_DMAR case. The iommu->agaw value wont be used in this
case, but the code is cleaner (has less #ifdefs) if we have it around
unconditionally.Signed-off-by: Ingo Molnar
03 Jan, 2009
9 commits
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"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 -
Signed-off-by: Mark McLoughlin
Signed-off-by: David Woodhouse -
Signed-off-by: Mark McLoughlin
Signed-off-by: David Woodhouse -
Signed-off-by: Mark McLoughlin
Signed-off-by: David Woodhouse -
DMA_PTE_READ/WRITE are needed by kvm.
Signed-off-by: Mark McLoughlin
Signed-off-by: David Woodhouse -
Signed-off-by: Mark McLoughlin
Signed-off-by: David Woodhouse -
We keep the struct root_entry forward declaration for the
pointer in struct intel_iommu.Signed-off-by: Mark McLoughlin
Signed-off-by: David Woodhouse -
Signed-off-by: Mark McLoughlin
Signed-off-by: David Woodhouse -
init_dmars() is not used outside of drivers/pci/intel-iommu.c
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
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
