[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] IOMMU support: __direct_remap_pfn_range() fails
I am working on getting IOMMU support for AMD64. Thanks to the help of Jun Nakajima, Jerome Young, and Keir Frasier, I have managed to get the aperture detected and initialized. However, the agpgart code is still failing. I have tracked the problem down to line 92 of ioremap.c, in __direct_remap_pfn_range(). The failing instruction is a call to HYPERVISOR_mmu_update(). I'm not familiar enough with the Xen hypervisor code to debug the problem further. Does anyone have suggestions for how I can debug this problem? -Mark Langsdorf AMD, Inc. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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