RE: Psim and kickstart
Jan Stoess <[email protected]> Thu, 24 Feb 2011 15:19:11 +0000
| Newsgroups | gmane.comp.micro-kernel.l4.l4ka.general |
|---|---|
| Message-ID | <[email protected]> |
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I have the kernel running on an Ebony Platform; it's Simics simulated but =
that shouldn't matter. I guess the main issue for you is to get U-Boot runn=
ing on your hardware. I'd suggest you to search http://www.denx.de/wiki/U-B=
oot to find out how to get that done; since it's platform-dependent, I can'=
t really be of help here. Once you have U-Boot running, the rest is rather =
trivial; with Simics, you can directly poke stuff into memory; with your pl=
atform you will have to find out how to get the binaries loaded. Essentiall=
y, you'll have to get kickstart, kernel, sigma0, roottask into memory and t=
hen launch kickstart; kickstart will then ELF-load all other l4 binaries an=
d boot the kernel.
We currently use the flattened device tree
http://elinux.org/Device_Trees
http://repository.timesys.com/buildsources/d/dtc/dtc-1.2.0/
to pass information about hardware and kernel to the kernel and to user-lev=
el. You may be required to get a device tree source for your particular pla=
tform and embed that into u-boot; u-boot's shell has support for manipulati=
ng the tree, which you will need to poke L4-specific values into. For ebony=
, I took the platform dts from in the Linux kernel. Once you have u-boot ru=
nning and have found yourself into FDT concepts, contact me and I can get y=
ou the code for ebony-uboot. We're in the process of releasing the ebony u-=
boot patches anyway.
Finally, you will need u-boot to execute some hush script commands to get k=
ickstart booted.
Best,
-Jan
--
Dr.-Ing. Jan Stoess
KIT/UKa System Architecture Group
Phone: +49 (721) 6084 4056
Fax: +49 (721) 6084 7664
http://os.ibds.kit.edu/stoess
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<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">I have the kernel r=
unning on an Ebony Platform; it’s Simics simulated but that shouldn&#=
8217;t matter. I guess the main issue for you is to get U-Boot running on
your hardware. I’d suggest you to search </span><a href=3D"http://ww=
w.denx.de/wiki/U-Boot">http://www.denx.de/wiki/U-Boot</a>
<span style=3D"font-size:11.0pt;font-family:"Calibri","sans-=
serif";color:#1F497D">to find out how to get that done; since it’=
;s platform-dependent, I can’t really be of help here. Once you have =
U-Boot running, the rest is rather trivial; with Simics, you can directly
poke stuff into memory; with your platform you will have to find out how t=
o get the binaries loaded. Essentially, you’ll have to get kickstart,=
kernel, sigma0, roottask into memory and then launch kickstart; kickstart =
will then ELF-load all other l4 binaries
and boot the kernel. <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">We currently use the flat=
tened device tree
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><a href=3D"http://elinux.org/Device_Trees">http://el=
inux.org/Device_Trees</a><span style=3D"font-size:11.0pt;font-family:"=
Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><a href=3D"http://repository.timesys.com/buildsource=
s/d/dtc/dtc-1.2.0/">http://repository.timesys.com/buildsources/d/dtc/dtc-1.=
2.0/</a><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">to pass information about=
hardware and kernel to the kernel and to user-level. You may be required t=
o get a device tree source for your particular platform
and embed that into u-boot; u-boot’s shell has support for manipulat=
ing the tree, which you will need to poke L4-specific values into. For ebon=
y, I took the platform dts from in the Linux kernel. Once you have u-boot r=
unning and have found yourself into FDT
concepts, contact me and I can get you the code for ebony-uboot. We’=
re in the process of releasing the ebony u-boot patches anyway.<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">Finally, you will need u-=
boot to execute some hush script commands to get kickstart booted.<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">Best,<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">-Jan<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">--<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">Dr.-Ing. Jan Stoess<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">KIT/UKa System Architectu=
re Group<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">Phone: +49 (721) 6084=
4056<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">Fax: +49 (721) 6084 7=
664<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><a href=3D"http://os.ibds=
.kit.edu/stoess">http://os.ibds.kit.edu/stoess</a>
</span><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
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