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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v4 00/24] Introduce Xen support on ARM (based on 3.6-rc5)
On Fri, Sep 14, 2012 at 12:12:59PM +0100, Stefano Stabellini wrote: > 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! I already put in these 1) xen/events: fix unmask_evtchn for PV on HVM guests 2) xen: missing includes 3) xen: update xen_add_to_physmap interface 4) xen: Introduce xen_pfn_t for pfn and mfn types 5) xen: clear IRQ_NOAUTOEN and IRQ_NOREQUEST 6) xen: allow privcmd for HVM guests in my tree as they also impact/help the PVH domains which works for x86 (Well, not all of them). They are in my stable/for-linus-3.7 git tree (git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git) and also in #linux-next. If it would make reviewing easier, I would recommend you rebase your tree on top of the stable/for-linus-3.7 and just post them as it would make the number of patches smaller. Or alternatively, if the ARM maintainer wishes - just give you the OK and we can figure out how/who is going to do the git-fu. > > > > Patch #21 "arm/v2m: initialize arch_timers even if v2m_timer is not > present" touches generic ARM code and still needs to be acked/reviewed. > > Arnd, Russell, what do you think about this series? If you are OK with > it, to whom should I submit it? > > > > 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 (24): > 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_pfn_t for pfn and mfn types > xen/arm: Introduce xen_ulong_t for unsigned long > xen/arm: compile and run xenbus > 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: clear IRQ_NOAUTOEN and IRQ_NOREQUEST > xen/arm: implement alloc/free_xenballooned_pages with alloc_pages/kfree > xen: allow privcmd for HVM guests > xen/arm: compile blkfront and blkback > xen/arm: compile netback > arm/v2m: initialize arch_timers even if v2m_timer is not present > xen: missing includes > xen: update xen_add_to_physmap interface > MAINTAINERS: add myself as Xen ARM maintainer > > Documentation/devicetree/bindings/arm/xen.txt | 22 ++++ > 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/mach-vexpress/v2m.c | 11 +- > 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 | 8 +- > arch/x86/include/asm/xen/interface.h | 8 ++ > arch/x86/xen/enlighten.c | 1 + > arch/x86/xen/irq.c | 1 + > arch/x86/xen/mmu.c | 3 + > 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/tty/hvc/hvc_xen.c | 2 + > drivers/xen/Makefile | 13 ++- > drivers/xen/events.c | 18 +++- > drivers/xen/grant-table.c | 1 + > drivers/xen/privcmd.c | 4 - > drivers/xen/xenbus/xenbus_comms.c | 2 +- > drivers/xen/xenbus/xenbus_probe.c | 62 +++++++--- > drivers/xen/xenbus/xenbus_probe_frontend.c | 1 + > drivers/xen/xenbus/xenbus_xs.c | 3 +- > include/xen/events.h | 2 + > include/xen/interface/features.h | 3 + > include/xen/interface/grant_table.h | 4 +- > include/xen/interface/io/protocols.h | 3 + > include/xen/interface/memory.h | 21 ++-- > include/xen/interface/physdev.h | 2 +- > include/xen/interface/platform.h | 4 +- > include/xen/interface/version.h | 2 +- > include/xen/interface/xen.h | 7 +- > include/xen/privcmd.h | 3 +- > include/xen/xen.h | 2 +- > 45 files changed, 796 insertions(+), 61 deletions(-) > > > > A branch based on 3.6-rc5 is available here: > > git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git 3.6-rc5-arm-4 > > > Cheers, > > Stefano > /* > * ARM Ltd. Versatile Express > * > * Motherboard Express uATX > * V2M-P1 > * > * HBI-0190D > * > * RS1 memory map ("ARM Cortex-A Series memory map" in the board's > * Technical Reference Manual) > * > * WARNING! The hardware described in this file is independent from the > * original variant (vexpress-v2m.dtsi), but there is a strong > * correspondence between the two configurations. > * > * TAKE CARE WHEN MAINTAINING THIS FILE TO PROPAGATE ANY RELEVANT > * CHANGES TO vexpress-v2m.dtsi! > */ > > / { > aliases { > arm,v2m_timer = &v2m_timer01; > }; > > motherboard { > compatible = "simple-bus"; > arm,v2m-memory-map = "rs1"; > #address-cells = <2>; /* SMB chipselect number and offset */ > #size-cells = <1>; > #interrupt-cells = <1>; > > flash@0,00000000 { > compatible = "arm,vexpress-flash", "cfi-flash"; > reg = <0 0x00000000 0x04000000>, > <4 0x00000000 0x04000000>; > bank-width = <4>; > }; > > psram@1,00000000 { > compatible = "arm,vexpress-psram", "mtd-ram"; > reg = <1 0x00000000 0x02000000>; > bank-width = <4>; > }; > > vram@2,00000000 { > compatible = "arm,vexpress-vram"; > reg = <2 0x00000000 0x00800000>; > }; > > ethernet@2,02000000 { > compatible = "smsc,lan91c111"; > reg = <2 0x02000000 0x10000>; > interrupts = <15>; > }; > > usb@2,03000000 { > compatible = "nxp,usb-isp1761"; > reg = <2 0x03000000 0x20000>; > interrupts = <16>; > port1-otg; > }; > > iofpga@3,00000000 { > compatible = "arm,amba-bus", "simple-bus"; > #address-cells = <1>; > #size-cells = <1>; > ranges = <0 3 0 0x200000>; > > sysreg@010000 { > compatible = "arm,vexpress-sysreg"; > reg = <0x010000 0x1000>; > }; > > sysctl@020000 { > compatible = "arm,sp810", "arm,primecell"; > reg = <0x020000 0x1000>; > }; > > /* PCI-E I2C bus */ > v2m_i2c_pcie: i2c@030000 { > compatible = "arm,versatile-i2c"; > reg = <0x030000 0x1000>; > > #address-cells = <1>; > #size-cells = <0>; > > pcie-switch@60 { > compatible = "idt,89hpes32h8"; > reg = <0x60>; > }; > }; > > aaci@040000 { > compatible = "arm,pl041", "arm,primecell"; > reg = <0x040000 0x1000>; > interrupts = <11>; > }; > > mmci@050000 { > compatible = "arm,pl180", "arm,primecell"; > reg = <0x050000 0x1000>; > interrupts = <9 10>; > }; > > kmi@060000 { > compatible = "arm,pl050", "arm,primecell"; > reg = <0x060000 0x1000>; > interrupts = <12>; > }; > > kmi@070000 { > compatible = "arm,pl050", "arm,primecell"; > reg = <0x070000 0x1000>; > interrupts = <13>; > }; > > v2m_serial0: uart@090000 { > compatible = "arm,pl011", "arm,primecell"; > reg = <0x090000 0x1000>; > interrupts = <5>; > }; > > v2m_serial1: uart@0a0000 { > compatible = "arm,pl011", "arm,primecell"; > reg = <0x0a0000 0x1000>; > interrupts = <6>; > }; > > v2m_serial2: uart@0b0000 { > compatible = "arm,pl011", "arm,primecell"; > reg = <0x0b0000 0x1000>; > interrupts = <7>; > }; > > v2m_serial3: uart@0c0000 { > compatible = "arm,pl011", "arm,primecell"; > reg = <0x0c0000 0x1000>; > interrupts = <8>; > }; > > wdt@0f0000 { > compatible = "arm,sp805", "arm,primecell"; > reg = <0x0f0000 0x1000>; > interrupts = <0>; > }; > > v2m_timer01: timer@110000 { > compatible = "arm,sp804", "arm,primecell"; > reg = <0x110000 0x1000>; > interrupts = <2>; > }; > > v2m_timer23: timer@120000 { > compatible = "arm,sp804", "arm,primecell"; > reg = <0x120000 0x1000>; > interrupts = <3>; > }; > > /* DVI I2C bus */ > v2m_i2c_dvi: i2c@160000 { > compatible = "arm,versatile-i2c"; > reg = <0x160000 0x1000>; > > #address-cells = <1>; > #size-cells = <0>; > > dvi-transmitter@39 { > compatible = "sil,sii9022-tpi", > "sil,sii9022"; > reg = <0x39>; > }; > > dvi-transmitter@60 { > compatible = "sil,sii9022-cpi", > "sil,sii9022"; > reg = <0x60>; > }; > }; > > rtc@170000 { > compatible = "arm,pl031", "arm,primecell"; > reg = <0x170000 0x1000>; > interrupts = <4>; > }; > > compact-flash@1a0000 { > compatible = "arm,vexpress-cf", "ata-generic"; > reg = <0x1a0000 0x100 > 0x1a0100 0xf00>; > reg-shift = <2>; > }; > > clcd@1f0000 { > compatible = "arm,pl111", "arm,primecell"; > reg = <0x1f0000 0x1000>; > interrupts = <14>; > }; > }; > > v2m_fixed_3v3: fixedregulator@0 { > compatible = "regulator-fixed"; > regulator-name = "3V3"; > regulator-min-microvolt = <3300000>; > regulator-max-microvolt = <3300000>; > regulator-always-on; > }; > }; > }; > /* > * ARM Ltd. Versatile Express > * > * CoreTile Express A15x2 (version with Test Chip 1) > * Cortex-A15 MPCore (V2P-CA15) > * > * HBI-0237A > */ > > /dts-v1/; > > / { > model = "V2P-CA15"; > arm,hbi = <0x237>; > compatible = "arm,vexpress,v2p-ca15,tc1", "arm,vexpress,v2p-ca15", > "arm,vexpress"; > interrupt-parent = <&gic>; > #address-cells = <2>; > #size-cells = <2>; > > chosen { > bootargs = "dom0_mem=128M"; > xen,dom0-bootargs = "earlyprintk console=ttyAMA1 > root=/dev/mmcblk0 debug rw"; > }; > > aliases { > serial0 = &v2m_serial0; > serial1 = &v2m_serial1; > serial2 = &v2m_serial2; > serial3 = &v2m_serial3; > i2c0 = &v2m_i2c_dvi; > i2c1 = &v2m_i2c_pcie; > }; > > cpus { > #address-cells = <1>; > #size-cells = <0>; > > cpu@0 { > device_type = "cpu"; > compatible = "arm,cortex-a15"; > reg = <0>; > }; > }; > > memory@80000000 { > device_type = "memory"; > reg = <0 0x80000000 0 0x80000000>; > }; > > gic: interrupt-controller@2c001000 { > compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic"; > #interrupt-cells = <3>; > #address-cells = <0>; > interrupt-controller; > reg = <0 0x2c001000 0 0x1000>, > <0 0x2c002000 0 0x1000>, > <0 0x2c004000 0 0x2000>, > <0 0x2c006000 0 0x2000>; > interrupts = <1 9 0xf04>; > }; > > timer { > compatible = "arm,armv7-timer"; > interrupts = <1 13 0xf08>, > <1 14 0xf08>, > <1 11 0xf08>, > <1 10 0xf08>; > }; > > pmu { > compatible = "arm,cortex-a15-pmu", "arm,cortex-a9-pmu"; > interrupts = <0 68 4>, > <0 69 4>; > }; > > hypervisor { > compatible = "xen,xen-4.2", "xen,xen"; > reg = <0 0xb0000000 0 0x20000>; > interrupts = <1 15 0xf08>; > }; > > motherboard { > ranges = <0 0 0 0x08000000 0x04000000>, > <1 0 0 0x14000000 0x04000000>, > <2 0 0 0x18000000 0x04000000>, > <3 0 0 0x1c000000 0x04000000>, > <4 0 0 0x0c000000 0x04000000>, > <5 0 0 0x10000000 0x04000000>; > > interrupt-map-mask = <0 0 63>; > interrupt-map = <0 0 0 &gic 0 0 4>, > <0 0 1 &gic 0 1 4>, > <0 0 2 &gic 0 2 4>, > <0 0 3 &gic 0 3 4>, > <0 0 4 &gic 0 4 4>, > <0 0 5 &gic 0 5 4>, > <0 0 6 &gic 0 6 4>, > <0 0 7 &gic 0 7 4>, > <0 0 8 &gic 0 8 4>, > <0 0 9 &gic 0 9 4>, > <0 0 10 &gic 0 10 4>, > <0 0 11 &gic 0 11 4>, > <0 0 12 &gic 0 12 4>, > <0 0 13 &gic 0 13 4>, > <0 0 14 &gic 0 14 4>, > <0 0 15 &gic 0 15 4>, > <0 0 16 &gic 0 16 4>, > <0 0 17 &gic 0 17 4>, > <0 0 18 &gic 0 18 4>, > <0 0 19 &gic 0 19 4>, > <0 0 20 &gic 0 20 4>, > <0 0 21 &gic 0 21 4>, > <0 0 22 &gic 0 22 4>, > <0 0 23 &gic 0 23 4>, > <0 0 24 &gic 0 24 4>, > <0 0 25 &gic 0 25 4>, > <0 0 26 &gic 0 26 4>, > <0 0 27 &gic 0 27 4>, > <0 0 28 &gic 0 28 4>, > <0 0 29 &gic 0 29 4>, > <0 0 30 &gic 0 30 4>, > <0 0 31 &gic 0 31 4>, > <0 0 32 &gic 0 32 4>, > <0 0 33 &gic 0 33 4>, > <0 0 34 &gic 0 34 4>, > <0 0 35 &gic 0 35 4>, > <0 0 36 &gic 0 36 4>, > <0 0 37 &gic 0 37 4>, > <0 0 38 &gic 0 38 4>, > <0 0 39 &gic 0 39 4>, > <0 0 40 &gic 0 40 4>, > <0 0 41 &gic 0 41 4>, > <0 0 42 &gic 0 42 4>; > }; > }; > > /include/ "vexpress-v2m-rs1.dtsi" > /* > * ARM Ltd. Versatile Express > * > * ARM Envelope Model v7A (single CPU). > */ > > /dts-v1/; > > /include/ "skeleton.dtsi" > > / { > model = "V2P-AEMv7A"; > compatible = "arm,vexpress,v2p-aem,v7a", "arm,vexpress,v2p-aem", > "arm,vexpress"; > interrupt-parent = <&gic>; > > chosen { > bootargs = "earlyprintk debug loglevel=9 console=hvc0 > root=/dev/xvda init=/sbin/init"; > }; > > cpus { > #address-cells = <1>; > #size-cells = <0>; > > cpu@0 { > device_type = "cpu"; > compatible = "arm,cortex-a15"; > reg = <0>; > }; > }; > > memory { > device_type = "memory"; > reg = <0x80000000 0x08000000>; > }; > > gic: interrupt-controller@2c001000 { > compatible = "arm,cortex-a9-gic"; > #interrupt-cells = <3>; > #address-cells = <0>; > interrupt-controller; > reg = <0x2c001000 0x1000>, > <0x2c002000 0x100>; > }; > > timer { > compatible = "arm,armv7-timer"; > interrupts = <1 13 0xf08>, > <1 14 0xf08>, > <1 11 0xf08>, > <1 10 0xf08>; > }; > > hypervisor { > compatible = "xen,xen-4.2", "xen,xen"; > reg = <0xb0000000 0x20000>; > interrupts = <1 15 0xf08>; > }; > > motherboard { > arm,v2m-memory-map = "rs1"; > ranges = <0 0 0x08000000 0x04000000>, > <1 0 0x14000000 0x04000000>, > <2 0 0x18000000 0x04000000>, > <3 0 0x1c000000 0x04000000>, > <4 0 0x0c000000 0x04000000>, > <5 0 0x10000000 0x04000000>; > > interrupt-map-mask = <0 0 63>; > interrupt-map = <0 0 0 &gic 0 0 4>, > <0 0 1 &gic 0 1 4>, > <0 0 2 &gic 0 2 4>, > <0 0 3 &gic 0 3 4>, > <0 0 4 &gic 0 4 4>, > <0 0 5 &gic 0 5 4>, > <0 0 6 &gic 0 6 4>, > <0 0 7 &gic 0 7 4>, > <0 0 8 &gic 0 8 4>, > <0 0 9 &gic 0 9 4>, > <0 0 10 &gic 0 10 4>, > <0 0 11 &gic 0 11 4>, > <0 0 12 &gic 0 12 4>, > <0 0 13 &gic 0 13 4>, > <0 0 14 &gic 0 14 4>, > <0 0 15 &gic 0 15 4>, > <0 0 16 &gic 0 16 4>, > <0 0 17 &gic 0 17 4>, > <0 0 18 &gic 0 18 4>, > <0 0 19 &gic 0 19 4>, > <0 0 20 &gic 0 20 4>, > <0 0 21 &gic 0 21 4>, > <0 0 22 &gic 0 22 4>, > <0 0 23 &gic 0 23 4>, > <0 0 24 &gic 0 24 4>, > <0 0 25 &gic 0 25 4>, > <0 0 26 &gic 0 26 4>, > <0 0 27 &gic 0 27 4>, > <0 0 28 &gic 0 28 4>, > <0 0 29 &gic 0 29 4>, > <0 0 30 &gic 0 30 4>, > <0 0 31 &gic 0 31 4>, > <0 0 32 &gic 0 32 4>, > <0 0 33 &gic 0 33 4>, > <0 0 34 &gic 0 34 4>, > <0 0 35 &gic 0 35 4>, > <0 0 36 &gic 0 36 4>, > <0 0 37 &gic 0 37 4>, > <0 0 38 &gic 0 38 4>, > <0 0 39 &gic 0 39 4>, > <0 0 40 &gic 0 40 4>, > <0 0 41 &gic 0 41 4>, > <0 0 42 &gic 0 42 4>; > }; > }; > > /* /include/ "vexpress-v2m-rs1-rtsm.dtsi" */ _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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