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3 Commits

Author SHA1 Message Date
Jeremy Fitzhardinge
818fd20673 xen: add "capabilities" file 
The xenfs capabilities file allows usermode to determine what
capabilities the domain has.  The only one at present is "control_d"
in a privileged domain.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
 2009-03-30 09:59:20 -07:00
Ian Campbell
e88a0faae5 xen: unitialised return value in xenbus_write_transaction 
The return value of xenbus_write_transaction can be uninitialised in
the success case leading to the userspace xenstore utilities failing.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 2009-01-26 14:29:26 +01:00
Alex Zeffertt
1107ba885e xen: add xenfs to allow usermode <-> Xen interaction 
The xenfs filesystem exports various interfaces to usermode.  Initially
this exports a file to allow usermode to interact with xenbus/xenstore.

Traditionally this appeared in /proc/xen.  Rather than extending procfs,
this patch adds a backward-compat mountpoint on /proc/xen, and provides
a xenfs filesystem which can be mounted there.

Signed-off-by: Alex Zeffertt <alex.zeffertt@eu.citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2009-01-08 08:30:59 -08:00