ia64/xen-unstable

view docs/README.xen-bugtool @ 11472:3e31c5e160cf

[HVM] Fix an error when read from APIC registers like IRR, ISR and TMR.
From SDM3 spec, for APIC registers, all 32-bit registers should
be accessed using 128-bit aligned 32bit loads or stores.
And wider registers (64-bit or 256-bit) must be accessed using
multiple 32-bit loads or stores.

In old APIC virtualization code, we use IRR, ISR and TMR which are
256-bit registers as contiguous bit maps other than multiple 32-bit.

So guest always fetch error values.

Original patch was:
* Signed-off-by: Xiaohui Xin <xiaohui.xin@intel.com>
* Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
* Signed-off-by: Eddie Dong <eddie.dong@intel.com>

Signed-off-by: Keir Fraser <keir@xensource.com>
author kaf24@firebug.cl.cam.ac.uk
date Wed Sep 13 15:59:14 2006 +0100 (2006-09-13)
parents d5368f7fda5d
children
line source
1 xen-bugtool
2 ===========
4 The xen-bugtool command line application will collate the Xen dmesg output,
5 details of the hardware configuration of your machine, information about the
6 build of Xen that you are using, plus, if you allow it, various logs.
8 The information collated can either be posted to a Xen Bugzilla bug (this bug
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10 it can be saved as a .tar.bz2 for sending or archiving.
12 The collated logs may contain private information, and if you are at all
13 worried about that, you should not use this tool, or you should explicitly
14 exclude those logs from the archive.
16 xen-bugtool is wholly interactive, so simply run it, and answer the questions.