lkml.org 
[lkml]   [2007]   [Feb]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    Subject[patch 18/26] Xen-paravirt_ops: Add XEN config options
    The XEN config option enables the Xen paravirt_ops interface, which is
    installed when the kernel finds itself running under Xen.

    Xen is no longer a sub-architecture, so the X86_XEN subarch config
    option has gone.

    Xen is currently incompatible with:
    - PREEMPT
    - HZ: set to 100Hz for now, to cut down on VCPU context switch rate.
    This will be adapted to use tickless later.

    Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
    Signed-off-by: Ian Pratt <ian.pratt@xensource.com>
    Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
    Signed-off-by: Chris Wright <chrisw@sous-sol.org>

    ---
    arch/i386/Kconfig | 2 ++
    arch/i386/xen/Kconfig | 10 ++++++++++
    2 files changed, 12 insertions(+)

    ===================================================================
    --- a/arch/i386/Kconfig
    +++ b/arch/i386/Kconfig
    @@ -216,6 +216,8 @@ config PARAVIRT
    under a hypervisor, improving performance significantly.
    However, when run without a hypervisor the kernel is
    theoretically slower. If in doubt, say N.
    +
    +source "arch/i386/xen/Kconfig"

    config VMI
    bool "VMI Paravirt-ops support"
    ===================================================================
    --- /dev/null
    +++ b/arch/i386/xen/Kconfig
    @@ -0,0 +1,10 @@
    +#
    +# This Kconfig describes xen options
    +#
    +
    +config XEN
    + bool "Enable support for Xen hypervisor"
    + depends on PARAVIRT && HZ_100 && !PREEMPT && !NO_HZ
    + default y
    + help
    + This is the Linux Xen port.
    --

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-02-27 09:43    [W:0.022 / U:0.376 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site