lkml.org 
[lkml]   [2016]   [Jul]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH] x86/boot: Reorganize and clean up the BIOS area reservation code

    * Andy Lutomirski <luto@amacapital.net> wrote:

    > It would be very easy to implement this if we could handle overlapping memblocks
    > precisely or set a lower limit on the memblock allocator. Then we could block
    > off everything below 1MB or 2MB very early and then unblock it or temporarily
    > change the lower limit and ask for a single page for the trampoline after that.

    So my suggestion was/is to _permanently_ allocate the SMP trampoline page, and
    leave it also reserved.

    'Reserving' a memory area is really just a kernel internal matter. We can still
    use it. No need to unreserve/allocate/re-reserve ... unless I'm missing something.

    Thanks,

    Ingo

    \
     
     \ /
      Last update: 2016-07-21 19:01    [W:4.117 / U:0.168 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site