This is the xl/xc changes to support Intel Code/Data Prioritization.
CAT xl commands to set/get CBMs are extended to support CDP.
Add new CDP options with CAT commands in xl interface man page.
Add description of CDP in xl-psr.markdown.
Signed-off-by: He Chen <he.chen@linux.intel.com>
Reviewed-by: Chao Peng <chao.p.peng@linux.intel.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>
SLES11 and OpenSUSE 11.4 complain:
[ 1227s] libxl_psr.c: In function 'libxl_psr_cat_get_l3_info':
[ 1227s] libxl_psr.c:342: error: declaration of 'socket' shadows a > global declaration
Change "socket" to "socketid" to fix the problem.
Reported-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: Chao Peng <chao.p.peng@linux.intel.com>
Tested-by: Olaf Hering <olaf@aepfle.de>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
The entries returned from libxl_psr_cat_get_l3_info are assumed
to be socket-continuous. But this is not true in the hotplug case.
This patch gets the socket bitmap for all the sockets on the system
first and stores the socket id in the structure libxl_psr_cat_info in
libxl_psr_cat_get_l3_info. The xl or similar consumers then can display
socket information correctly.
Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
Reviewed-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
PSR was using EBADSLT and EUSERS which are not POSIX error codes, replace
them with ENOTSOCK and EOVERFLOW respectively.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Release-acked-by: Wei Liu <wei.liu2@citrix.com>
This is the xc/xl changes to support Intel Cache Allocation
Technology(CAT).
'xl psr-hwinfo' is updated to show CAT info and two new commands
for CAT are introduced:
- xl psr-cat-cbm-set [-s socket] <domain> <cbm>
Set cache capacity bitmasks(CBM) for a domain.
- xl psr-cat-show <domain>
Show CAT domain information.
Examples:
[root@vmm-psr vmm]# xl psr-hwinfo --cat
Cache Allocation Technology (CAT):
Socket ID : 0
L3 Cache : 12288KB
Maximum COS : 15
CBM length : 12
Default CBM : 0xfff
[root@vmm-psr vmm]# xl psr-cat-cbm-set 0 0xff
[root@vmm-psr vmm]# xl psr-cat-show
Socket ID : 0
L3 Cache : 12288KB
Default CBM : 0xfff
ID NAME CBM
0 Domain-0 0xff
Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
Reviewed-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Add Memory Bandwidth Monitoring(MBM) for VMs. Two types of monitoring
are supported: total and local memory bandwidth monitoring. To use it,
CMT should be enabled in hypervisor.
Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
- space: remove space after '(' or before ')' in 'if' condition;
- indention: align function definition/call arguments;
Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Introduced some new xl commands to enable/disable Cache Monitoring
Technology(CMT) feature.
The following two commands is to attach/detach the CMT feature
to/from a certain domain.
$ xl psr-cmt-attach domid
$ xl psr-cmt-detach domid
This command is to display the CMT information, such as L3 cache
occupancy.
$ xl psr-cmt-show cache_occupancy <domid>
Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
He Chen
Wei Liu
Chao Peng
Roger Pau Monné