[VirtLayer] Midterm patches and blog update

[Gedare Bloom]

Please merge the part of the libcpu_i386_midterm.patch that contains
the relocated code into the score_i386_midterm.patch since the score
patch will not work right without reimplementing the libcpu part. Make
the addition of the virtual subdirectory of the libcpu a separate
patch that includes everything needed for it to work, probably by
merging it with the virtPok BSP.

Please try to submit the patches directly to the mailing list with
git-send-email, it is easier to review patches that are emailed
directly instead of attached. Instructions can be found on the RTEMS
wiki Git_Users page.

Other notes:
* avoid two or more blank lines in a row
* break lines longer than 80 characters
* don't use "Intel" to specify the i386 type in comments (other x86
brands should work..)
* put the extern "C" after include files. "C" files should not need
it, only header files.
* Delete "Formerly contained in and extracted from libcpu/i386/cpu.h"
from interrupts.h header comment. Possibly add comment "Relocated from
score/cpu/i386"
* rename files to avoid humpBackNotation. Files in RTEMS are usually
alllowercase so let us follow the usual way.
* Remove "Date: XX/YY/ZZZZ" from file comments
* Replace "Author: Philipp Eppelt" with a copyright statement e.g.
"Copyright (c) 2013 Philipp Eppelt."
* "virt_disableInterrupts" and "virt_enableInterrupts" are undefined.
Also they should be given a proper RTEMS name, e.g.
_CPU_Virtual_Disable_interrupts() or something.
* Add your copyright to the virtual/include/rtems/score/interrupts.h.
You substantially transformed this code and should lay claim to your
copyright.

-Gedare

On Wed, Jul 31, 2013 at 4:17 PM, Philipp Eppelt
<philipp.eppelt at mailbox.tu-dresden.de> wrote:
> Patch for libcpu, introducing CPU models 'native' and 'virtual' and
> implementing functions removed from score.
>
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