Messages in this thread | | | From | "Lyle Coder" <> | Subject | Re: HIGH MEMORY access | Date | Fri, 03 Mar 2000 18:27:19 PST |
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Hi, The function in question is get_smp_config
1) No it doesent call set_fixmap 2) Even if it did, it wont be able to see > 1GB
Ingo, am I correct?
Best Wishes, Lyle
>From: Andi Kleen <ak@muc.de> >To: x_coder@hotmail.com (Lyle Coder) >CC: linux-kernel@vger.rutgers.edu >Subject: Re: HIGH MEMORY access >Date: 04 Mar 2000 02:30:07 +0100 > >x_coder@hotmail.com (Lyle Coder) writes: > > > Hello All, > > I have a question. The BIOS engineers said that the MPS tables will be >in > > the highest region of the available RAM... greater than 1 GB if so much > > memory is available. > > Further more, the MPS tables will be in a region reported "unusable" by >E820 > > (Thats mentioned in the E820 spec). > > > > So my question is this... > > 1) How should we initialize mappings for arbitrary RAM above 1GB so >early > > on? Should we just set aside a page directory for temporary >installation of > > translations and provide a clean API to do so? We will need this for >ACPI > > and PAE too. > >Can't you just use set_fixmap, like the current smp code already does for >MP bios tables ? > > >-Andi > >-- >This is like TV. I don't like TV.
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