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    SubjectRe: [PATCH v4 2/2] arm: prefer PSCI for SMP bringup
    On Fri, 29 Mar 2013, Stefano Stabellini wrote:

    > If PSCI initializes correctly and PSCI SMP operations are available, use them.
    > This is required for SMP support in Dom0 on Xen.
    >
    > Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
    > CC: will.deacon@arm.com
    > CC: arnd@arndb.de
    > CC: marc.zyngier@arm.com
    > CC: linux@arm.linux.org.uk
    > CC: nico@linaro.org

    I'd suggest you also include in your series the patch I posted earlier
    providing a runtime mdesc->smp_init method as well. This way the
    priority order would be:

    - If mdesc->smp_init is non null then use that.

    - Otherwise, if PSCI is available then use that.

    - Otherwise use mdesc->smp.

    This way, if the PSCI default has to be overriden (like in the MCPM case
    because it needs to wrap PSCI itself, or to cover Rob's concern) then
    this can be achieved at run time on a per mdesc basis.


    Nicolas


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