@@ -529,6 +529,7 @@ struct cmd_spec cmd_table[] = {
"[options]",
"-m, --cmt Show Cache Monitoring Technology (CMT) hardware info\n"
"-a, --cat Show Cache Allocation Technology (CAT) hardware info\n"
+ "-b, --mba Show Memory Bandwidth Allocation (MBA) hardware info\n"
},
{ "psr-cmt-attach",
&main_psr_cmt_attach, 0, 1,
@@ -475,6 +475,32 @@ static int psr_l2_cat_hwinfo(void)
return rc;
}
+static int psr_mba_hwinfo(void)
+{
+ int rc;
+ unsigned int i, nr;
+ libxl_psr_hw_info *info;
+
+ rc = libxl_psr_get_hw_info(ctx, &info, &nr,
+ LIBXL_PSR_FEAT_TYPE_MBA, 0);
+ if (rc)
+ return rc;
+
+ printf("Memory Bandwidth Allocation (MBA):\n");
+
+ for (i = 0; i < nr; i++) {
+ printf("Socket ID : %u\n", info[i].id);
+ printf("Linear Mode : %s\n",
+ info[i].u.mba.linear ? "Enabled" : "Disabled");
+ printf("Maximum COS : %u\n", info[i].u.mba.cos_max);
+ printf("Maximum Throttling Value: %u\n", info[i].u.mba.thrtl_max);
+ printf("Default Throttling Value: %u\n", 0);
+ }
+
+ libxl_psr_hw_info_list_free(info, nr);
+ return rc;
+}
+
int main_psr_cat_cbm_set(int argc, char **argv)
{
uint32_t domid;
@@ -593,20 +619,24 @@ int main_psr_cat_show(int argc, char **argv)
int main_psr_hwinfo(int argc, char **argv)
{
int opt, ret = 0;
- bool all = true, cmt = false, cat = false;
- static struct option opts[] = {
+ bool all = true, cmt = false, cat = false, mba = false;
+ static const struct option opts[] = {
{"cmt", 0, 0, 'm'},
{"cat", 0, 0, 'a'},
+ {"mba", 0, 0, 'b'},
COMMON_LONG_OPTS
};
- SWITCH_FOREACH_OPT(opt, "ma", opts, "psr-hwinfo", 0) {
+ SWITCH_FOREACH_OPT(opt, "mab", opts, "psr-hwinfo", 0) {
case 'm':
all = false; cmt = true;
break;
case 'a':
all = false; cat = true;
break;
+ case 'b':
+ all = false; mba = true;
+ break;
}
if (!ret && (all || cmt))
@@ -619,6 +649,10 @@ int main_psr_hwinfo(int argc, char **argv)
if (all || cat)
ret = psr_l2_cat_hwinfo();
+ /* MBA is independent of CMT and CAT */
+ if (all || mba)
+ ret = psr_mba_hwinfo();
+
return ret;
}
This patch implements a new xl get HW info interface. A new argument is added for psr-hwinfo command to get and show MBA HW info. Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com> --- CC: Wei Liu <wei.liu2@citrix.com> CC: Ian Jackson <ian.jackson@eu.citrix.com> CC: Roger Pau Monné <roger.pau@citrix.com> CC: Chao Peng <chao.p.peng@linux.intel.com> v3: - change the format string of printf in 'psr_mba_hwinfo'. (suggested by Roger Pau Monné) - add 'const' for 'opts[]' in 'main_psr_hwinfo'. (suggested by Roger Pau Monné) v2: - split out this patch from a big patch in v1. (suggested by Wei Liu) - change 'MBA_INFO' to 'MBA'. Also, change 'mba_info' to 'mba'. (suggested by Chao Peng) --- tools/xl/xl_cmdtable.c | 1 + tools/xl/xl_psr.c | 40 +++++++++++++++++++++++++++++++++++++--- 2 files changed, 38 insertions(+), 3 deletions(-)