Does unmap() flush tlb on other cores
ryx at gwmail.gwu.edu
Tue Sep 23 16:34:58 CEST 2014
Thank you very much.
You are really helpful!
I have looked at that code and understand it very well.
On Tue, Sep 23, 2014 at 1:42 AM, Adam Lackorzynski <
adam at os.inf.tu-dresden.de> wrote:
> On Thu Sep 18, 2014 at 21:38:30 -0400, Yuxin Ren wrote:
> > I have question about tlb flush.
> > When a memory page is unmaped, do we always flush tlb of all other cores?
> > Or do we have some way to track which core to flush?
> > If so, how do we track that information?
> > And it would be better if some one can show the code in the kernel to do
> > that.
> Please look for active_tlb() in Context and global_flush() in
> map_util.cpp where the flush is done according to the active_tlb mask.
> Adam adam at os.inf.tu-dresden.de
> Lackorzynski http://os.inf.tu-dresden.de/~adam/
> l4-hackers mailing list
> l4-hackers at os.inf.tu-dresden.de
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