xen-changelog

[Top] [All Lists]

[Xen-changelog] Don't panic for (rare) dom0 physaddr with uncacheable at

from [Xen patchbot -unstable]

[Permanent Link][Original]

To:	xen-changelog@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-changelog] Don't panic for (rare) dom0 physaddr with uncacheable attribute
From:	Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>
Date:	Fri, 11 Nov 2005 16:26:08 +0000
Delivery-date:	Fri, 11 Nov 2005 16:26:35 +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 djm@xxxxxxxxxxxxxxx
# Node ID 7fd6dff1631d662c53b7a11c55ef7b07ac50e156
# Parent  8ddc812626b24eb327613b61e5251181eb93b98f
Don't panic for (rare) dom0 physaddr with uncacheable attribute

diff -r 8ddc812626b2 -r 7fd6dff1631d xen/arch/ia64/xen/vcpu.c
--- a/xen/arch/ia64/xen/vcpu.c  Wed Nov  9 18:59:28 2005
+++ b/xen/arch/ia64/xen/vcpu.c  Wed Nov  9 20:11:31 2005
@@ -1296,9 +1296,12 @@
        TR_ENTRY *trp;
 
        if (PSCB(vcpu,metaphysical_mode)) {
-               if (address >> 61)      // FIXME: need more precise check here
+               unsigned long region = address >> 61;
+               // dom0 may generate an uncacheable physical address (msb=1)
+               if (region && ((region != 4) || (vcpu->domain != dom0))) {
                        panic_domain(vcpu_regs(vcpu),
-                               "vcpu_translate: bad physical address\n");
+                        "vcpu_translate: bad physical address: %p\n",address);
+               }
                *pteval = (address & _PAGE_PPN_MASK) | __DIRTY_BITS | 
_PAGE_PL_2 | _PAGE_AR_RWX;
                *itir = PAGE_SHIFT << 2;
                phys_translate_count++;

_______________________________________________
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] Don't panic for (rare) dom0 physaddr with uncacheable attribute, Xen patchbot -unstable <=

Previous by Date:	[Xen-changelog] Fix ia64 tools build (new parameter in xc_vmx_build), Xen patchbot -unstable
Next by Date:	[Xen-changelog] Don't panic for other region physaddr handling in vcpu_translate, Xen patchbot -unstable
Previous by Thread:	[Xen-changelog] Fix ia64 tools build (new parameter in xc_vmx_build), Xen patchbot -unstable
Next by Thread:	[Xen-changelog] Don't panic for other region physaddr handling in vcpu_translate, Xen patchbot -unstable
Indexes:	[Date] [Thread] [Top] [All Lists]