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    SubjectRe: [PATCH] Intel IOMMU Pass Through Support
    On Thu, 30 Apr 2009 16:37:52 -0700
    Randy Dunlap <rdunlap@xenotime.net> wrote:

    > >
    > > arch/x86/built-in.o: In function `iommu_setup':
    > > arch/x86/kernel/pci-dma.c:215: undefined reference to `iommu_pass_through'
    > > arch/x86/built-in.o: In function `pci_swiotlb_init':
    > > arch/x86/kernel/pci-swiotlb.c:74: undefined reference to `iommu_pass_through'
    > >
    > > Because iommu_pass_through is defined in drivers/pci/intel-iommu.c and
    > >
    > > # CONFIG_DMAR is not set
    > >
    > > I'll need to cook up some local hack to work around that.
    > >
    >
    > Patch just went to linux-next mailing list (but should have also
    > gone to lkml):
    >
    > http://marc.info/?l=linux-next&m=124113213400748&w=2

    OK, thanks. My linux-next feed seems to have broken.

    That patch modifies

    arch/ia64/kernel/dma-mapping.c
    arch/x86/kernel/pci-dma.c

    but it would be more logical to modify

    arch/ia64/kernel/pci-dma.c
    arch/x86/kernel/pci-dma.c

    is there a reason why that cannot be done?


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