From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.intermedia.net ([207.5.44.129]) by kvack.org (8.8.7/8.8.7) with SMTP id LAA08520 for ; Fri, 30 Apr 1999 11:25:42 -0400 Received: from [212.184.137.58] by mail.colorfullife.com (NTMail 3.03.0017/1.abcr) with ESMTP id da358127 for ; Fri, 30 Apr 1999 08:27:01 -0700 Message-ID: <001801be93e6$ca0a0cd0$c80c17ac@clmsdev.local> Reply-To: "Manfred Spraul" From: "Manfred Spraul" Subject: Re: Hello Date: Sat, 1 May 1999 17:25:01 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Manfred Spraul , "Stephen C. Tweedie" Cc: "Benjamin C.R. LaHaise" , linux-mm@kvack.org List-ID: I wrote a few hour ago: >Do you have any details about PSE-36? I found the description about PSE-36, it's part of the addendum to Volume 3 of the PII documentation. (available from http://www.intel.com/design/pentiumii/manuals/) In summary: On PII Xeon processors, you can use 4 MB PTE's to map physical memory from the complete 36 bit address space. They use the formerly reserved bits in the middle of the PTE for this. Everything else remains unchanged. Actually, PSE-36 is always enabled on PII Xeon processors if you enable the 4 MB page table entries. The modification only applies to 4 MB pte's, PSE-36 does not allow you to access high memory with 4 kb PTE's Please ignore my post about Intel's NT device driver: It's a simple hack, it allows you to use the remaining memory as a ramdisk. Regards, Manfred -- To unsubscribe, send a message with 'unsubscribe linux-mm my@address' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://humbolt.geo.uu.nl/Linux-MM/