Hello Andreas,
Thanks a lot for the useful information.
Is there a way for me to understand the existing support in gem5 for out
of the box DVFS capabilities for ARM. Could you point me to any
information/documentation that exists already? I am not sure when wiki
will be ready and I want to start looking into this option as soon as
possible. I would really appreciate any help that you could provide.
Thanks
Lokesh.
On 09/28/14 15:53, Andreas Hansson via gem5-dev wrote:
Hi Lokesh,
I don¹t think anyone has looked at gem5 DVFS support for X86 until now,
and I fear there might be quite some work involved.
We have recently pushed a bunch of patches to make sure DVFS works ³out of
the box² with ARM, and should soon have some documentation available on
the wiki. This option will most likely involve far less issues...
Andreas
On 9/28/14, 8:56 PM, "Lokesh Jindal via gem5-dev" <[email protected]>
wrote:
On 09/18/2014 12:02 PM, Lokesh Jindal wrote:
RSDP PTR in x86 FS simulation : A valid RSDP was not found Hello,
I am very new to gem5. I am trying to run x86 FS simulation with a
linux kernel(v2.6.28.4)compiled with ACPI "enabled". I am seeing the
following error:
/"ACPI Error (tbxfroot-0219): A valid RSDP was not found [20080926]"/
The kernel is not able to locate the "RSD PTR " signature. I can see
some RSDP-related code in /src/arch/x86/bios directory in gem5, which
I am "guessing" takes care of setting up ACPI desriptor tables. Could
someone explain me some details here:
1. What does linux kernel expect from Gem5 related to ACPI set up and
init?
2. What kind of ACPI related set up (including taking care of RSDP
desriptor tables) is actually done by Gem5?
3. Most importantly, how to fix the above mentioned error?
I have attached log files for reference and the .config file I used
while compiling linux kernel. Pardon me if I have explained something
unclearly/incorrectly.
Thanks and Regards
Lokesh Jindal.
UW-Madison.
Hey,
Could anyone help me out here?
My ultimate aim is to enable support for DVFS for linux kernel in x86
arch on gem5. And this is the first step. Kindly provide some insight.
Thanks
Lokesh Jindal
Grad student, UW-Madison
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