On Thu, Feb 12, 2009 at 08:50:32PM +0800, Yu Zhao wrote: > This patch series implements Address Translation Service support for > the Intel IOMMU. ATS makes the PCI Endpoint be able to request the > DMA address translation from the IOMMU and cache the translation in > the Endpoint, thus alleviate IOMMU pressure and improve the hardware > performance in the I/O virtualization environment. > > > Changelog: v2 -> v3 > 1, throw error message if VT-d hardware detects invalid descriptor > on Queued Invalidation interface (David Woodhouse) > 2, avoid using pci_find_ext_capability every time when reading ATS > Invalidate Queue Depth (Matthew Wilcox) > Changelog: v1 -> v2 > added 'static' prefix to a local LIST_HEAD (Andrew Morton) > > > Yu Zhao (6): > PCI: support the ATS capability > VT-d: parse ATSR in DMA Remapping Reporting Structure > VT-d: add queue invalidation fault status support > VT-d: add device IOTLB invalidation support > VT-d: cleanup iommu_flush_iotlb_psi and flush_unmaps > VT-d: support the device IOTLB > > drivers/pci/dmar.c | 230 ++++++++++++++++++++++++++++++++++++++---- Yu, Can you please add something to Documentation/PCI/pci.txt? New API I'm seeing are: +extern int pci_enable_ats(struct pci_dev *dev, int ps); +extern void pci_disable_ats(struct pci_dev *dev); +extern int pci_ats_queue_depth(struct pci_dev *dev); Do these also need to be EXPORT_SYMBOL_GPL() as well? Or are drivers never expected to call the above? thanks, grant > drivers/pci/intel-iommu.c | 135 ++++++++++++++++++++----- > drivers/pci/intr_remapping.c | 21 ++-- > drivers/pci/pci.c | 72 +++++++++++++ > include/linux/dmar.h | 9 ++ > include/linux/intel-iommu.h | 19 +++- > include/linux/pci.h | 16 +++ > include/linux/pci_regs.h | 10 ++ > 8 files changed, 457 insertions(+), 55 deletions(-) > > -- > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
