freebsd-dev/sys/dev/xen
Justin T. Gibbs 0d17232400 Correct failure to attach the PV block front device on Citrix
XenServer configurations that advertise the multi-page ring extension,
but only allow a single page of ring space.

sys/dev/xen/blkfront/blkfront.c:
	If only one page of ring space is being used, do not publish
	in the XenStore the number of pages in use (1), via either
	of the supported multi-page ring extension schemes.

	Single page operation is the same with or without the
	ring-page extension being negotiated.   Relying on the
	legacy behavior avoids an incompatible difference in how
	the two ring-page extension schemes that are out in the
	wild, deal with the base case of a single page.  The
	Amazon/Red Hat drivers use the same XenStore variable as
	if the extension was not negotiated.  The Citrix drivers
	assume the new ring reference XenStore variables will be
	available

Reported by:	Oliver Schonefeld <schonefeld@ids-mannheim.de>
MFC after:	3 days
2012-03-25 14:20:43 +00:00
..
balloon Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
blkback Fix regression in the handling of blkback close events for 2012-02-17 22:33:46 +00:00
blkfront Correct failure to attach the PV block front device on Citrix 2012-03-25 14:20:43 +00:00
console kern cons: introduce infrastructure for console grabbing by kernel 2011-12-17 15:08:43 +00:00
control Properly handle suspend/resume events in the Xen device 2011-09-20 23:44:34 +00:00
evtchn merge 186535, 186537, and 186538 from releng_7_xen 2008-12-29 06:31:03 +00:00
netback Fix the netback driver build for i386. 2012-02-02 17:54:35 +00:00
netfront ether_ifattach() sets if_mtu to ETHERMTU, don't bother set it again 2012-01-07 09:41:57 +00:00
pcifront - There's no need to overwrite the default device method with the default 2011-11-22 21:28:20 +00:00
xenpci Make XENHVM work on i386. The __ffs() function counts bits starting from 2012-01-16 02:38:45 +00:00