xen-changelog

[Top] [All Lists]

[Xen-changelog] [IA64] dummy IO memmap entry

from [Xen patchbot -unstable]

[Permanent Link][Original]

To:	xen-changelog@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-changelog] [IA64] dummy IO memmap entry
From:	Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>
Date:	Sat, 18 Mar 2006 11:18:26 +0000
Delivery-date:	Sat, 18 Mar 2006 11:22:18 +0000
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxxx
List-help:	<mailto:xen-changelog-request@lists.xensource.com?subject=help>
List-id:	BK change log <xen-changelog.lists.xensource.com>
List-post:	<mailto:xen-changelog@lists.xensource.com>
List-subscribe:	<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-changelog>, <mailto:xen-changelog-request@lists.xensource.com?subject=subscribe>
List-unsubscribe:	<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-changelog>, <mailto:xen-changelog-request@lists.xensource.com?subject=unsubscribe>
Reply-to:	xen-devel@xxxxxxxxxxxxxxxxxxx
Sender:	xen-changelog-bounces@xxxxxxxxxxxxxxxxxxx

# HG changeset patch
# User awilliam@xxxxxxxxxxx
# Node ID dc99944b9bd0bd1984d869bdd8db3fde808ce5f8
# Parent  2f4911432398044adbaeee02dbd9a7f8a6300b4d
[IA64] dummy IO memmap entry

Create a dummy IO ports memmap entry for domU, so that
IO accesses are trapped by Xen.  Otherwise, they could
pollute memory.

Signed-off-by: Tristan Gingold <tristan.gingold@xxxxxxxx>

diff -r 2f4911432398 -r dc99944b9bd0 xen/arch/ia64/xen/dom_fw.c
--- a/xen/arch/ia64/xen/dom_fw.c        Wed Mar 15 15:20:28 2006
+++ b/xen/arch/ia64/xen/dom_fw.c        Wed Mar 15 15:22:03 2006
@@ -860,7 +860,10 @@
                /* hypercall patches live here, masquerade as reserved PAL 
memory */
                
MAKE_MD(EFI_PAL_CODE,EFI_MEMORY_WB,HYPERCALL_START,HYPERCALL_END, 1);
                
MAKE_MD(EFI_CONVENTIONAL_MEMORY,EFI_MEMORY_WB,HYPERCALL_END,maxmem, 1);
-               MAKE_MD(EFI_RESERVED_TYPE,0,0,0,0);
+               /* Create a dummy entry for IO ports, so that IO accesses are
+                  trapped by Xen.  */
+               MAKE_MD(EFI_MEMORY_MAPPED_IO_PORT_SPACE,EFI_MEMORY_UC,
+                       0x00000ffffc000000, 0x00000fffffffffff, 1);
                MAKE_MD(EFI_RESERVED_TYPE,0,0,0,0);
        }
 

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog

[More with this subject...]

<Prev in Thread]	Current Thread	[Next in Thread>
[Xen-changelog] [IA64] dummy IO memmap entry, Xen patchbot -unstable <=

Previous by Date:	[Xen-changelog] [IA64] remove warning of xen_init(), Xen patchbot -unstable
Next by Date:	[Xen-changelog] [IA64] LID virtualization, Xen patchbot -unstable
Previous by Thread:	[Xen-changelog] [IA64] remove warning of xen_init(), Xen patchbot -unstable
Next by Thread:	[Xen-changelog] [IA64] LID virtualization, Xen patchbot -unstable
Indexes:	[Date] [Thread] [Top] [All Lists]