Messages in this thread | | | Date | Tue, 16 Aug 2005 19:24:22 +0900 (JST) | Subject | Re: [RFC] [PATCH] cache pollution aware __copy_from_user_ll() | From | Hirokazu Takahashi <> |
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Hi,
> > > > My code does nothing do it. > > > > > > > > I need a volunteer to implement it. > > > > > > it's actually not too hard; all you need is to use SSE and not MMX; and > > > then just store sse register you're overwriting on the stack or so... > > > > oh, really? Does the linux kernel take care of > > SSE save/restore on a task switch? > > not on kernel entry afaik. > However just save the register on the stack and put it back at the > end...
I think this have to be done in the pagefault handlers.
Thanks, Hirokazu Takahashi. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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