Hey Linus, Please git pull the following tag: git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git stable/for-linus-3.13-rc0-tag which has tons of fixes and two major features which are concentrated around the Xen SWIOTLB library. The short is that the tracing facility (just one function) has been added to SWIOTLB to make it easier to track I/O progress. Additionally under Xen and ARM (32 & 64) the Xen-SWIOTLB driver "isused to translate physical to machine and machine to physical addresses of foreign[guest] pages for DMA operations" (Stefano) when booting under hardware without proper IOMMU. There are also bug-fixes, cleanups, compile warning fixes, etc. The commit times for some of the commits is a bit fresh - that is b/c we wanted to make sure we have the Ack's from the ARM folks - which with the string of back-to-back conferences took a bit of time. Rest assured - the code has been stewing in #linux-next for some time. There is also an easy to resolve conflict with the ARM tree, and Stephen Rothwell is carrying a patch: arch/arm/include/asm/dma-mapping.h between commit 6a6a5c15d871 ("ARM: 7805/1: mm: change max*pfn to include the physical offset of memory") from the arm tree and commit e24b7aa368a0 ("arm: make SWIOTLB available") from the xen-tip tree. See attached file. arch/arm/Kconfig | 7 + arch/arm/include/asm/dma-mapping.h | 46 ++++++- arch/arm/include/asm/io.h | 9 ++ arch/arm/include/asm/xen/hypervisor.h | 2 + arch/arm/include/asm/xen/page-coherent.h | 50 +++++++ arch/arm/include/asm/xen/page.h | 44 +++++- arch/arm/xen/Makefile | 2 +- arch/arm/xen/mm.c | 65 +++++++++ arch/arm/xen/p2m.c | 208 +++++++++++++++++++++++++++++ arch/arm64/Kconfig | 1 + arch/arm64/include/asm/dma-mapping.h | 14 +- arch/arm64/include/asm/io.h | 10 ++ arch/arm64/include/asm/xen/page-coherent.h | 47 +++++++ arch/arm64/xen/Makefile | 2 +- arch/ia64/include/asm/xen/page-coherent.h | 38 ++++++ arch/x86/include/asm/xen/page-coherent.h | 38 ++++++ arch/x86/xen/mmu.c | 15 ++- arch/x86/xen/p2m.c | 6 +- arch/x86/xen/pci-swiotlb-xen.c | 4 + arch/x86/xen/setup.c | 2 +- arch/x86/xen/smp.c | 10 +- arch/x86/xen/spinlock.c | 2 +- arch/x86/xen/time.c | 3 +- drivers/tty/hvc/hvc_xen.c | 19 ++- drivers/xen/Kconfig | 1 - drivers/xen/balloon.c | 6 +- drivers/xen/evtchn.c | 2 +- drivers/xen/grant-table.c | 19 ++- drivers/xen/pci.c | 47 +++++++ drivers/xen/platform-pci.c | 2 +- drivers/xen/swiotlb-xen.c | 119 +++++++++++++---- include/trace/events/swiotlb.h | 46 +++++++ include/xen/interface/physdev.h | 11 ++ include/xen/swiotlb-xen.h | 3 + include/xen/xen-ops.h | 7 +- lib/swiotlb.c | 6 + 36 files changed, 846 insertions(+), 67 deletions(-) Boris Ostrovsky (1): xen/balloon: Set balloon's initial state to number of existing RAM pages Konrad Rzeszutek Wilk (3): xen/mmu: Correct PAT MST setting. xen/hvc: If we use xen_raw_printk let it also work on HVM guests. xen/mcfg: Call PHYSDEVOP_pci_mmcfg_reserved for MCFG areas. Michael Opdenacker (2): x86/xen: remove deprecated IRQF_DISABLED xen: remove deprecated IRQF_DISABLED Paul Gortmaker (1): xen: delete new instances of added __cpuinit Stefano Stabellini (23): arm: make SWIOTLB available arm64: define DMA_ERROR_CODE arm/xen,arm64/xen: introduce p2m xen/x86: allow __set_phys_to_machine for autotranslate guests xen: make xen_create_contiguous_region return the dma address xen/arm,arm64: enable SWIOTLB_XEN swiotlb-xen: introduce xen_swiotlb_set_dma_mask arm/xen: get_dma_ops: return xen_dma_ops if we are running as xen_initial_domain arm64/xen: get_dma_ops: return xen_dma_ops if we are running as xen_initial_domain xen: introduce xen_alloc/free_coherent_pages swiotlb-xen: use xen_alloc/free_coherent_pages xen: introduce xen_dma_map/unmap_page and xen_dma_sync_single_for_cpu/device swiotlb-xen: use xen_dma_map/unmap_page, xen_dma_sync_single_for_cpu/device swiotlb: print a warning when the swiotlb is full arm,arm64: do not always merge biovec if we are running on Xen grant-table: call set_phys_to_machine after mapping grant refs swiotlb-xen: static inline xen_phys_to_bus, xen_bus_to_phys, xen_virt_to_bus and range_straddles_page_boundary swiotlb-xen: fix error code returned by xen_swiotlb_map_sg_attrs arm: make SWIOTLB available pci-swiotlb-xen: call pci_request_acs only ifdef CONFIG_PCI swiotlb-xen: missing include dma-direction.h arm,arm64/include/asm/io.h: define struct bio_vec xen/arm: pfn_to_mfn and mfn_to_pfn return the argument if nothing is in the p2m Thierry Reding (1): tracing/events: Fix swiotlb tracepoint creation Zoltan Kiss (1): tracing/events: Add bounce tracing to swiotbl