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    Subject[PATCH v2 0/3] Kernel handling of Dynamic Logical Partitioning
    version 2 of the patch set with updates from comments.

    The Dynamic Logical Partitioning (DLPAR) capabilities of the powerpc pseries
    platform allows for the addition and removal of resources (i.e. cpus,
    memory, pci devices) from a partition. The removal of a resource involves
    removing the resource's node from the device tree and then returning the
    resource to firmware via the rtas set-indicator call. To add a resource, it
    is first obtained from firmware via the rtas set-indicator call and then a
    new device tree node is created using the ibm,configure-coinnector rtas call
    and added to the device tree.

    The following set of patches implements the needed infrastructure to have the
    kernel handle the DLPAR addition and removal of cpus (other DLPAR'able items to
    follow in future patches). The framework for this is to create a set of probe/release
    sysfs files that will facilitate arch-specific call-outs to handle addition and
    removal of cpus to the system.

    -Nathan Fontenot

    1/3 - powerpc/pseries kernel DLPAR infrastructure
    2/3 - Create probe/release sysfs files and the powerpc handlers
    3/3 - powerpc/pseries CPU DLPAR handling

    arch/powerpc/Kconfig | 4
    arch/powerpc/include/asm/machdep.h | 5
    arch/powerpc/include/asm/pSeries_reconfig.h | 1
    arch/powerpc/kernel/smp.c | 17
    arch/powerpc/kernel/sysfs.c | 19 +
    arch/powerpc/platforms/pseries/Makefile | 2
    arch/powerpc/platforms/pseries/dlpar.c | 500 +++++++++++++++++++++++++++-
    arch/powerpc/platforms/pseries/reconfig.c | 2
    drivers/base/cpu.c | 33 +
    include/linux/cpu.h | 4
    10 files changed, 581 insertions(+), 6 deletions(-)

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      Last update: 2009-11-25 08:07    [W:0.020 / U:28.608 seconds]
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