[Xen-devel] [PATCH 00/24] Introduce Xen support on ARM

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

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

Attachment: vexpress-v2p-ca15-tc1.dts
Description: Text document

Attachment: vexpress-virt.dts
Description: Text document

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