| |
|
 |
|
 |
|
|
|
| |
|
|
xen-ia64-devel
RE: [Xen-ia64-devel] [PATCH] fix access rights in VHPT whenitr.ar!=dtr.a
Hi kouya,
Another solution is to set dtr[1].ar=3(RWX) too,
This will not incur any impact.
Because itr[1].ar=3(RWX). There are same mapping for data and instruction.
The upside is there is no impossible INST_ACCESS_RIGHTS.
- Anthony
-----Original Message-----
From: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Kouya SHIMURA
Sent: 2007年3月20日 16:33
To: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-ia64-devel] [PATCH] fix access rights in VHPT whenitr.ar!=dtr.ar
Hi,
This is a workaround patch for Windows 2003 Server.
Windows (vcpu>=2) set itr[1].ar=3(RWX) but dtr[1].ar=2(RW).
It causes a impossible INST_ACCESS_RIGHTS interruption via VHPT
which is used for emulating TR.
Surprisingly, windows ordinarily accepts this interruption.
But windows sometimes crashes with the message 'PANIC_STACK_SWITCH'
owing to this interruption.
Thanks,
Kouya
Signed-off-by: Kouya Shimura <kouya@xxxxxxxxxxxxxx>
_______________________________________________
Xen-ia64-devel mailing list
Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-ia64-devel
|
|
|
| |
|
Home