lkml.org 
[lkml]   [2011]   [Feb]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    SubjectRe: [PATCH] NX protection for kernel data : fix 32 bits S3 suspend
    Date
    H. Peter Anvin <hpa@zytor.com> wrote:

    > In static_protections() we have:
    >
    >> /*
    >> * The BIOS area between 640k and 1Mb needs to be executable for
    >> * PCI BIOS based config access (CONFIG_PCI_GOBIOS) support.
    >> */

    I don't think the CGA/MDA/VGA graphics memory areas should be executable,
    and I doubt execute access to these areas is required - is it?

    0xA000:0000 might be a BIOS area, if it is, you don't have a VGA and the
    ROM will be exactly 64K. 0xB800 and 0xB000 SHOULD NOT be a ROM, nobody dared
    to use it (I don't remember exactly where ROMs are searched).
    --
    Funny quotes:
    34. If FedEx and UPS were to merge, would they call it Fed UP?

    Friß, Spammer: igc@vhFgi.7eggert.dyndns.org fdnJu@jQOez.7eggert.dyndns.org

    --
    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: 2011-02-06 11:33    [W:0.022 / U:96.684 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site