lkml.org 
[lkml]   [2018]   [Jan]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    Date
    SubjectRe: [PATCHv6, RESEND 4/4] x86/boot/compressed/64: Handle 5-level paging boot if kernel is above 4G
    On Tue, Jan 23, 2018 at 9:09 AM, Kirill A. Shutemov
    <kirill.shutemov@linux.intel.com> wrote:
    >
    > But if the bootloader put the kernel above 4G (not sure if anybody does
    > this), we would lose control as soon as paging is disabled, because the
    > code becomes unreachable to the CPU.

    I do wonder if we need this. Why would a bootloader ever put the data
    above 4G? Does this really happen? Wouldn't it be easier to just say
    "bootloaders better put the kernel in the low 4G"?

    Linus

    \
     
     \ /
      Last update: 2018-01-23 18:32    [W:4.627 / U:0.112 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site