Messages in this thread | | | Date | Thu, 26 Jul 2012 16:33:28 +0100 | From | Stefano Stabellini <> | Subject | [PATCH 00/24] Introduce Xen support on ARM |
| |
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, and a simple ad-hoc tool to build guest domains (marc.info/?l=xen-devel&m=134089788016546).
The patch marked with [HACK] shouldn't be applied and is part of the series only because it is needed to create domUs.
I am also attaching to this email the dts'es that I am currently using for dom0 and domU: vexpress-v2p-ca15-tc1.dts 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!
Ian Campbell (2): ARM: enable earlyprintk=xen [HACK] xen/arm: implement xen_remap_domain_mfn_range
Stefano Stabellini (22): 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 xen: missing includes xen/arm: Xen detection and shared_info page mapping xen/arm: Introduce xen_pfn_t for pfn and mfn types xen/arm: compile and run xenbus xen: do not compile manage, balloon, pci, acpi and cpu_hotplug on ARM xen/arm: introduce CONFIG_XEN on ARM xen/arm: Introduce xen_guest_init 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: allow privcmd for HVM guests xen/arm: compile blkfront and blkback xen/arm: compile netback xen: update xen_add_to_physmap interface arm/v2m: initialize arch_timers even if v2m_timer is not present hvc_xen: allow dom0_write_console for HVM guests
arch/arm/Kconfig | 10 ++ arch/arm/Makefile | 1 + arch/arm/include/asm/hypervisor.h | 6 + arch/arm/include/asm/sync_bitops.h | 17 ++ arch/arm/include/asm/xen/hypercall.h | 69 ++++++++ arch/arm/include/asm/xen/hypervisor.h | 19 +++ arch/arm/include/asm/xen/interface.h | 66 ++++++++ arch/arm/include/asm/xen/page.h | 77 +++++++++ arch/arm/kernel/early_printk.c | 11 ++- arch/arm/mach-vexpress/v2m.c | 11 +- arch/arm/xen/Makefile | 1 + arch/arm/xen/enlighten.c | 244 ++++++++++++++++++++++++++++ arch/arm/xen/grant-table.c | 53 ++++++ arch/arm/xen/hypercall.S | 65 ++++++++ arch/ia64/include/asm/xen/interface.h | 2 +- arch/x86/include/asm/xen/interface.h | 2 + arch/x86/xen/enlighten.c | 9 + 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/tty/hvc/hvc_xen.c | 14 +- drivers/xen/Makefile | 9 +- drivers/xen/events.c | 18 ++- drivers/xen/grant-table.c | 3 +- drivers/xen/privcmd.c | 20 +-- drivers/xen/xenbus/xenbus_comms.c | 2 +- drivers/xen/xenbus/xenbus_probe.c | 27 ++-- drivers/xen/xenbus/xenbus_probe_frontend.c | 1 + drivers/xen/xenbus/xenbus_xs.c | 1 + drivers/xen/xenfs/super.c | 7 + 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 | 19 ++- include/xen/interface/platform.h | 4 +- include/xen/interface/xen.h | 9 +- include/xen/privcmd.h | 3 +- include/xen/xen.h | 4 +- 41 files changed, 763 insertions(+), 58 deletions(-)
A branch based on 3.5-rc7 is available here:
git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git 3.5-rc7-arm-1
Cheers,
Stefano/* * 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";
#address-cells = <1>; #size-cells = <1>;
interrupt-parent = <&gic>;
chosen { bootargs = "dom0_mem=128M"; xen,dom0-bootargs = "earlyprintk=xenboot 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 { device_type = "memory"; reg = <0x80000000 0x80000000>; };
gic: interrupt-controller@2c001000 { compatible = "arm,cortex-a9-gic"; #interrupt-cells = <3>; #address-cells = <0>; interrupt-controller; reg = <0x2c001000 0x1000>, <0x2c002000 0x100>; };
pmu { compatible = "arm,cortex-a9-pmu"; interrupts = <0 68 4>, <0 69 4>; };
xen { compatible = "arm,xen"; reg = <0xb0000000 0x20000>; interrupts = <1 15 0xf08>; };
motherboard { 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" /* * 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=xen debug loglevel=9 console=hvc0 root=/dev/xvda"; };
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>; };
xen { compatible = "arm,xen"; reg = <0xb0000000 0x20000>; interrupts = <1 15 0xf08>; };
motherboard { 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" */
| |