Subject: Re: Recursive PT mapping strangeness?
To: Chris Gilbert <>
From: Jason R Thorpe <>
List: port-arm
Date: 02/06/2002 07:36:52
On Wed, Feb 06, 2002 at 10:52:07AM +0000, Chris Gilbert wrote:

 > say we've got 8192 pages, that's about 32MB.  In the old style you got 8192 
 > pv_heads, with the new style you get 8168 vm_pages, because I guess we don't 
 > need vm_pages to manage where the vm_pages were allocated?  but I'm wondering 
 > if we do need pv_heads for them?
 > Note I'm quite possibly wrong though. I'll try to find time this evening to 
 > play with the code.

No, a pv_head is only needed for a vm_page in the ARM pmap.

        -- Jason R. Thorpe <>