Messages in this thread | | | From | giampapa@us ... | Date | Tue, 18 Jan 2000 12:18:24 -0500 | Subject | Re: BUG? i386 TLB Flushing of Global Pages |
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lkd@tantalophile.demon.co.uk wrote: > AFAIK the specification simply says that global pages aren't flushed by >reloading cr3. Why assume more? > >-- Jamie Hi Jamie, I agree there is little if any information in the Intel documention (anyone from Intel care to comment?) on this topic. I do not have the references handy at the moment, but in a prior-art search for a patent I was working on, I stumbled across a number of patents and papers regarding controlling or optimizing hardware TLB replacement. The only hint we have on IA32 is _PAGE_GLOBAL, and we have already gotten ourselves in touble with it once. As the world moves toward software-managed TLBs this will become moot anyway. Thanks, Mark
Mark Giampapa Parallel Systems IBM TJ Watson Research 1-914-945-3133 giampapa@us.ibm.com
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