 Home |
Products |
Support |
Community |
News |
xen-devel
[Xen-devel] 16 GB limit on Xen x86-32 PAE?
| To: | <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] 16 GB limit on Xen x86-32 PAE? |
| From: | "Subrahmanian, Raj" <raj.subrahmanian@xxxxxxxxxx> |
| Date: | Fri, 4 Nov 2005 15:40:27 -0500 |
| Delivery-date: | Fri, 04 Nov 2005 20:40:53 +0000 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxxx |
| List-help: | <mailto:xen-devel-request@lists.xensource.com?subject=help> |
| List-id: | Xen developer discussion <xen-devel.lists.xensource.com> |
| List-post: | <mailto:xen-devel@lists.xensource.com> |
| List-subscribe: | <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
| List-unsubscribe: | <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| Thread-index: | AcXhfmC1OAYai4/4Q3quK9uGUtek4gAADw6Q |
| Thread-topic: | 16 GB limit on Xen x86-32 PAE? |
I was trying to find out what the maximum limit for memory is on x86-32 PAE. I discovered that the limit was 16 GB and it was set in xen/asm-x86/config.h #define MACHPHYS_MBYTES 16 /* 1 MB needed per 1 GB memory */ #define FRAMETABLE_MBYTES (MACHPHYS_MBYTES * 6) Is there any reason for this 16 GB limit? Doesn't PAE permit us to access up to 64 GB? If we wanted to access 64 GB what else would need to be fixed? Thanks Raj PS. I tried changing MACPHYS_MBYTES to 64 and it didn't seem to break anything. Of course, I am running on a 4 GB system. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | RE: [Xen-devel] Remaining ia64 differences in xen driver code -- privcmd, Magenheimer, Dan (HP Labs Fort Collins) |
|---|---|
| Next by Date: | RE: [Xen-devel] 16 GB limit on Xen x86-32 PAE?, Ian Pratt |
| Previous by Thread: | [Xen-devel] network problem again! after change to new network script, Xin Zhao |
| Next by Thread: | RE: [Xen-devel] 16 GB limit on Xen x86-32 PAE?, Ian Pratt |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
