 Home |
Products |
Support |
Community |
News |
xen-devel
[Xen-devel] real-mode switch
| To: | "ron minnich" <rminnich@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] real-mode switch |
| From: | "Jayant Mangalampalli" <Jayant_Mangalampalli@xxxxxxxxxxx> |
| Date: | Tue, 5 Jun 2007 18:49:05 +0530 |
| Delivery-date: | Tue, 05 Jun 2007 06:16:57 -0700 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxx |
| 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: | AcendBde9cnWVuoMRu2bkB+SJbMudA== |
| Thread-topic: | real-mode switch |
|
I am trying to switch to real-mode to make some BIOS calls. However, when I try to remap kernel at virtual address 0 I get “Unable to handle kernel paging request at virtual address c06e0000” error. Here is where I get it: memcpy(swapper_pg_dir, swapper_pg_dir + USER_PGD_PTRS, sizeof(swapper_pg_dir[0]) * KERNEL_PGD_PTRS);
swapper_pg_dir is 0xc06e0000, and user PGD pointers start at 0x400 and kernel pointers start at 0x100. Any idea why I get this?
Jayant Mangalampalli
_______________________________________________ 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] Set cpu_weight and cpu_cap at boot time, Petersson, Mats |
|---|---|
| Next by Date: | [Xen-devel] 64Bits I/O Requests, Guy Zana |
| Previous by Thread: | [Xen-devel] xen dout, Gautham Kampalapur Shankar, TLS, Chennai |
| Next by Thread: | RE: [Xen-devel] real-mode switch, Petersson, Mats |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
