The frametable entries do not have an obvious bit indicating that the page is a target of a CP lock. I'll keep digging. I'm going to as time permits hunt down through the virtual machine pgmbk's. David
________________________________ From: The IBM z/VM Operating System on behalf of Rob van der Heij Sent: Wed 12/10/2008 6:15 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: [IBMVM] query of CP locked guest pages On Wed, Dec 10, 2008 at 4:47 PM, Dave Jones <[EMAIL PROTECTED]> wrote: > I'm stumped here....I have a guest virtual machine (running Linux, but I > think that's immaterial) that has locked some of its pages into host storage > via the CP LOCK command....now I want to find out *which* guest pages were > locked. I can find a count of the number of locked pages, but I want to know > which ones as well. No Dave, locked pages is "material" (i.e. hardware). Unlocked pages are "immaterial" (virtual) :-) In a former live, in the days that I cared about such things, I had a tiny pipeline stage that could read the core table (using my dcp stage). From there it was trivial to select the entries marked as locked user pages. I used it to determine the reference patterns for Linux pages to decide what portions would be candidates to share. But if your "which" was only the prelude for the "why" question: if the guest has a dedicated OSA adapter, then the locked pages are probably the inbound buffers for that. In previous releases the locked pages per guest (under the bar) was part of the motivation to promote virtual network devices. Rob
