James Harper
2007-Oct-04 07:48 UTC
[Xen-devel] What does the I/O range on the HVM PCI device do?
Windows tells me that there is n I/O range (0xC100 to 0xC1FF) allocated to the Xen PCI device under HVM... but I can''t see what it is used for... Can anyone enlighten me? Thanks James _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Keir Fraser
2007-Oct-04 08:26 UTC
Re: [Xen-devel] What does the I/O range on the HVM PCI device do?
It''s not used for anything right now. But things like flushing ioemu''s mapcache may be be triggered via that port space in the future. -- Keir On 4/10/07 08:48, "James Harper" <james.harper@bendigoit.com.au> wrote:> Windows tells me that there is n I/O range (0xC100 to 0xC1FF) allocated > to the Xen PCI device under HVM... but I can''t see what it is used > for... > > Can anyone enlighten me? > > Thanks > > James > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Ian Campbell
2007-Oct-04 08:49 UTC
Re: [Xen-devel] What does the I/O range on the HVM PCI device do?
On Thu, 2007-10-04 at 17:48 +1000, James Harper wrote:> Windows tells me that there is n I/O range (0xC100 to 0xC1FF) allocated > to the Xen PCI device under HVM... but I can''t see what it is used > for... > > Can anyone enlighten me?The comment in tools/ioemu/hw/xen_platform.c says "/* nothing yet */". Ian. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel