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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v5 00/17] Introduce Xen support on ARM (based on 3.6-rc5)
Hi all, this patch series implements Xen support for ARMv7 with virtualization extensions. It allows a Linux guest to boot as dom0 and as domU on Xen on ARM. PV console, disk and network frontends and backends are all working correctly. It has been tested on a Versatile Express Cortex A15 emulator, using the latest Xen ARM developement branch (git://xenbits.xen.org/people/ianc/xen-unstable.git arm-for-4.3) plus the "ARM hypercall ABI: 64 bit ready" patch series (http://marc.info/?l=xen-devel&m=134426267205408), and a simple ad-hoc tool to build guest domains (marc.info/?l=xen-devel&m=134089788016546). The patch marked with [HACK] has been dropped from this series, however you can find it here: http://marc.info/?l=linux-kernel&m=134513277823527&w=2. I am also attaching to this email the dts'es that I am currently using for dom0 and domU: vexpress-v2p-ca15-tc1.dts (that includes vexpress-v2m-rs1-rtsm.dtsi) is the dts used for dom0 and it is passed to Linux by Xen, while vexpress-virt.dts is the dts used for other domUs and it is appended in binary form to the guest kernel image. I am not sure where they are supposed to live yet, so I am just attaching them here so that people can actually try out this series if they want to. Comments are very welcome! The patch series has been rebased on Konrad's stable/for-linus-3.7 branch. Arnd, Russell, what do you think about this series? If you are OK with it, to whom should I submit it? Changes in v5: - rebase on Konrad's stable/for-linus-3.7; - add a comment about the size of the grant table memory region in the device tree documentation; - add a comment about the required presence of a GIC node in the device tree documentation; - specify that the described properties are part of a top-level "hypervisor" node in the device tree documentation; - specify #address-cells and #size-cells for the device tree example; - make XEN_DOM0 depend on XEN; - avoid "select XEN_DOM0" in XEN. Changes in v4: - rebase on 3.6-rc5; - devicetree: "xen,xen" should be last as it is less specific; - devicetree: use 2 address-cells and 2 size-cells in the reg property; - do not xs_reset_watches on dom0; - compile drivers/xen/pcpu.c only on x86; - use "+=" instead of ":=" for dom0- targets; - add a patch to update the MAINTAINERS file. Changes in v3: - move patches that have been picked up by Konrad at the end of the series; - improve comments; - add a doc to describe the Xen Device Tree format; - do not use xen_ulong_t for multicalls and apic_physbase; - add a patch at the end of the series to use the new __HVC macro; - add missing pvclock-abi.h include to ia64 header files; - do not use an anonymous union in struct xen_add_to_physmap. Changes in v2: - fix up many comments and commit messages; - remove the early_printk patches: rely on the emulated serial for now; - remove the xen_guest_init patch: without any PV early_printk, we don't need any early call to xen_guest_init, we can rely on core_initcall alone; - define an HYPERCALL macro for 5 arguments hypercall wrappers, even if at the moment is unused; - use ldm instead of pop in the hypercall wrappers; - return -ENOSYS rather than -1 from the unimplemented grant_table functions; - remove the pvclock ifdef in the Xen headers; - remove include linux/types.h from xen/interface/xen.h; - replace pr_info with pr_debug in xen_guest_init; - add a new patch to introduce xen_ulong_t and use it top replace all the occurences of unsigned long in the public Xen interface; - explicitely size all the pointers to 64 bit on ARM, so that the hypercall ABI is "64 bit ready"; - clean up xenbus_init; - make pci.o depend on CONFIG_PCI and acpi.o depend on CONFIG_ACPI; - mark Xen guest support on ARM as EXPERIMENTAL; - introduce GRANT_TABLE_PHYSADDR; - remove unneeded initialization of boot_max_nr_grant_frames; - add a new patch to clear IRQ_NOAUTOEN and IRQ_NOREQUEST in events.c; - return -EINVAL from xen_remap_domain_mfn_range if auto_translated_physmap; - retain binary compatibility in xen_add_to_physmap: use a union to introduce foreign_domid. Shortlog and diffstat: Stefano Stabellini (17): arm: initial Xen support xen/arm: hypercalls xen/arm: page.h definitions xen/arm: sync_bitops xen/arm: empty implementation of grant_table arch specific functions docs: Xen ARM DT bindings xen/arm: Xen detection and shared_info page mapping xen/arm: Introduce xen_ulong_t for unsigned long xen: do not compile manage, balloon, pci, acpi, pcpu and cpu_hotplug on ARM xen/arm: introduce CONFIG_XEN on ARM xen/arm: get privilege status xen/arm: initialize grant_table on ARM xen/arm: receive Xen events on ARM xen/arm: implement alloc/free_xenballooned_pages with alloc_pages/kfree xen/arm: compile blkfront and blkback xen/arm: compile netback MAINTAINERS: add myself as Xen ARM maintainer Documentation/devicetree/bindings/arm/xen.txt | 25 ++++ MAINTAINERS | 7 + arch/arm/Kconfig | 10 ++ arch/arm/Makefile | 1 + arch/arm/include/asm/hypervisor.h | 6 + arch/arm/include/asm/sync_bitops.h | 27 ++++ arch/arm/include/asm/xen/events.h | 18 +++ arch/arm/include/asm/xen/hypercall.h | 69 ++++++++++ arch/arm/include/asm/xen/hypervisor.h | 19 +++ arch/arm/include/asm/xen/interface.h | 73 +++++++++++ arch/arm/include/asm/xen/page.h | 82 ++++++++++++ arch/arm/xen/Makefile | 1 + arch/arm/xen/enlighten.c | 168 +++++++++++++++++++++++++ arch/arm/xen/grant-table.c | 53 ++++++++ arch/arm/xen/hypercall.S | 106 ++++++++++++++++ arch/ia64/include/asm/xen/interface.h | 1 + arch/x86/include/asm/xen/interface.h | 1 + arch/x86/xen/enlighten.c | 1 + arch/x86/xen/irq.c | 1 + arch/x86/xen/xen-ops.h | 1 - drivers/block/xen-blkback/blkback.c | 1 + drivers/net/xen-netback/netback.c | 1 + drivers/net/xen-netfront.c | 1 + drivers/xen/Makefile | 13 ++- drivers/xen/events.c | 17 ++- include/xen/events.h | 2 + include/xen/interface/features.h | 3 + include/xen/interface/io/protocols.h | 3 + include/xen/interface/memory.h | 12 +- include/xen/interface/physdev.h | 2 +- include/xen/interface/version.h | 2 +- include/xen/xen.h | 2 +- 32 files changed, 712 insertions(+), 17 deletions(-) A branch based on 3.6-rc5 and Konrad's stable/for-linus-3.7 is available here: git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git 3.6-rc5-arm-5 Cheers, Stefano Attachment:
vexpress-v2m-rs1.dtsi Attachment:
vexpress-v2p-ca15-tc1.dts Attachment:
vexpress-virt.dts _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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