Hi, Ali
Thanks for your quick reply!
It is quite complicated to boot up Linux for some hardware features such
as SMT.
I am not sure which one is easier, SMT/SE with TLB or SMT/FS.
Thanks!
Zhiguo
From: [email protected] [mailto:[email protected]] On
Behalf Of Ali Saidi
Sent: Monday, August 05, 2013 1:43 PM
To: gem5 users mailing list
Subject: Re: [gem5-users] About TLB in SE mode
Hi Zhiguo,
The TLB code in gem5 -- sure. However something needs to create the page table
still since the OS running under gem5 would typically do this. It's likely that
all the required processor registers aren't appropriately initialized to do a
table walk in SE mode, so that would need to be fixed too. Why not run in FS
mode?
Ali
On Aug 5, 2013, at 12:04 AM, GE ZHIGUO
<[email protected]<mailto:[email protected]>> wrote:
Hi, Ali
Thanks!
To enable TLB in SE, can we reuse the TLB code for FS mode with minor
modification?
The difference between SE and FS that I can think is that SE cannot support
page fault if I am not wrong.
But as you said, we can create a complete page table to handle this issue.
Apart from this, are there other
issues we need to handle?
Regards,
Zhiguo
From: [email protected]<mailto:[email protected]>
[mailto:[email protected]<mailto:[email protected]>] On Behalf
Of Ali Saidi
Sent: Monday, August 05, 2013 12:45 PM
To: gem5 users mailing list
Subject: Re: [gem5-users] About TLB in SE mode
To use a the tlb (and have table walks) you would need to create a complete
page table. While doable, FS mode provides this if you want to use it.
Ali
On Aug 4, 2013, at 11:41 PM, GE ZHIGUO
<[email protected]<mailto:[email protected]>> wrote:
Hi,
I found that the TLB implementation in SE mode is much different from that
in full system mode.
There is actually no real TLB in SE. I am curious why TLB is so different in
GEM5 SE mode.
Is there anything that prevents us from using TLB in SE? Can we implement TLB
in SE mode?
Thanks!
Zhiguo
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