Mailing List Archive

Node-affinity is now something that is under (some) control of the
user, so show it upon request as part of the output of `xl list'.

Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>

diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -2834,14 +2834,82 @@ out:
}
}

-static void list_domains(int verbose, int context, const libxl_dominfo *info, int nb_domain)
+static void print_bitmap(uint8_t *map, int maplen, FILE *stream, int cpu_node)
+{
+ int i;
+ uint8_t pmap = 0, bitmask = 0;
+ int firstset = 0, state = 0;
+
+ for (i = 0; i < maplen; i++) {
+ if (i % 8 == 0) {
+ pmap = *map++;
+ bitmask = 1;
+ } else bitmask <<= 1;
+
+ switch (state) {
+ case 0:
+ case 2:
+ if ((pmap & bitmask) != 0) {
+ firstset = i;
+ state++;
+ }
+ continue;
+ case 1:
+ case 3:
+ if ((pmap & bitmask) == 0) {
+ fprintf(stream, "%s%d", state > 1 ? "," : "", firstset);
+ if (i - 1 > firstset)
+ fprintf(stream, "-%d", i - 1);
+ state = 2;
+ }
+ continue;
+ }
+ }
+ switch (state) {
+ case 0:
+ fprintf(stream, "none");
+ break;
+ case 2:
+ break;
+ case 1:
+ if (firstset == 0) {
+ fprintf(stream, cpu_node ? "any cpu" : "any node");
+ break;
+ }
+ case 3:
+ fprintf(stream, "%s%d", state > 1 ? "," : "", firstset);
+ if (i - 1 > firstset)
+ fprintf(stream, "-%d", i - 1);
+ break;
+ }
+}
+
+static void list_domains(int verbose, int context, int numa, const libxl_dominfo *info, int nb_domain)
{
int i;
static const char shutdown_reason_letters[]= "-rscw";
+ libxl_bitmap nodemap;
+ libxl_physinfo physinfo;
+
+ libxl_bitmap_init(&nodemap);
+ libxl_physinfo_init(&physinfo);

printf("Name ID Mem VCPUs\tState\tTime(s)");
if (verbose) printf(" UUID Reason-Code\tSecurity Label");
if (context && !verbose) printf(" Security Label");
+ if (numa) {
+ if (libxl_node_bitmap_alloc(ctx, &nodemap, 0)) {
+ fprintf(stderr, "libxl_node_bitmap_alloc_failed.\n");
+ exit(1);
+ }
+ if (libxl_get_physinfo(ctx, &physinfo) != 0) {
+ fprintf(stderr, "libxl_physinfo failed.\n");
+ libxl_bitmap_dispose(&nodemap);
+ exit(1);
+ }
+
+ printf(" NODE Affinity");
+ }
printf("\n");
for (i = 0; i < nb_domain; i++) {
char *domname;
@@ -2875,14 +2943,23 @@ static void list_domains(int verbose, in
rc = libxl_flask_sid_to_context(ctx, info[i].ssidref, &buf,
&size);
if (rc < 0)
- printf(" -");
+ printf(" -");
else {
- printf(" %s", buf);
+ printf(" %16s", buf);
free(buf);
}
}
+ if (numa) {
+ libxl_domain_get_nodeaffinity(ctx, info[i].domid, &nodemap);
+
+ putchar(' ');
+ print_bitmap(nodemap.map, physinfo.nr_nodes, stdout, 0);
+ }
putchar('\n');
}
+
+ libxl_bitmap_dispose(&nodemap);
+ libxl_physinfo_dispose(&physinfo);
}

static void list_vm(void)
@@ -3724,12 +3801,14 @@ int main_list(int argc, char **argv)
int opt, verbose = 0;
int context = 0;
int details = 0;
+ int numa = 0;
int option_index = 0;
static struct option long_options[] = {
{"long", 0, 0, 'l'},
{"help", 0, 0, 'h'},
{"verbose", 0, 0, 'v'},
{"context", 0, 0, 'Z'},
+ {"numa", 0, 0, 'n'},
{0, 0, 0, 0}
};

@@ -3738,7 +3817,7 @@ int main_list(int argc, char **argv)
int nb_domain, rc;

while (1) {
- opt = getopt_long(argc, argv, "lvhZ", long_options, &option_index);
+ opt = getopt_long(argc, argv, "lvhZn", long_options, &option_index);
if (opt == -1)
break;

@@ -3755,6 +3834,9 @@ int main_list(int argc, char **argv)
case 'Z':
context = 1;
break;
+ case 'n':
+ numa = 1;
+ break;
default:
fprintf(stderr, "option `%c' not supported.\n", optopt);
break;
@@ -3790,7 +3872,7 @@ int main_list(int argc, char **argv)
if (details)
list_domains_details(info, nb_domain);
else
- list_domains(verbose, context, info, nb_domain);
+ list_domains(verbose, context, numa, info, nb_domain);

if (info_free)
libxl_dominfo_list_free(info, nb_domain);
@@ -4062,56 +4144,6 @@ int main_button_press(int argc, char **a
return 0;
}

-static void print_bitmap(uint8_t *map, int maplen, FILE *stream)
-{
- int i;
- uint8_t pmap = 0, bitmask = 0;
- int firstset = 0, state = 0;
-
- for (i = 0; i < maplen; i++) {
- if (i % 8 == 0) {
- pmap = *map++;
- bitmask = 1;
- } else bitmask <<= 1;
-
- switch (state) {
- case 0:
- case 2:
- if ((pmap & bitmask) != 0) {
- firstset = i;
- state++;
- }
- continue;
- case 1:
- case 3:
- if ((pmap & bitmask) == 0) {
- fprintf(stream, "%s%d", state > 1 ? "," : "", firstset);
- if (i - 1 > firstset)
- fprintf(stream, "-%d", i - 1);
- state = 2;
- }
- continue;
- }
- }
- switch (state) {
- case 0:
- fprintf(stream, "none");
- break;
- case 2:
- break;
- case 1:
- if (firstset == 0) {
- fprintf(stream, "any cpu");
- break;
- }
- case 3:
- fprintf(stream, "%s%d", state > 1 ? "," : "", firstset);
- if (i - 1 > firstset)
- fprintf(stream, "-%d", i - 1);
- break;
- }
-}
-
static void print_vcpuinfo(uint32_t tdomid,
const libxl_vcpuinfo *vcpuinfo,
uint32_t nr_cpus)
@@ -4135,7 +4167,7 @@ static void print_vcpuinfo(uint32_t tdom
/* TIM */
printf("%9.1f ", ((float)vcpuinfo->vcpu_time / 1e9));
/* CPU AFFINITY */
- print_bitmap(vcpuinfo->cpumap.map, nr_cpus, stdout);
+ print_bitmap(vcpuinfo->cpumap.map, nr_cpus, stdout, 1);
printf("\n");
}

diff --git a/tools/libxl/xl_cmdtable.c b/tools/libxl/xl_cmdtable.c
--- a/tools/libxl/xl_cmdtable.c
+++ b/tools/libxl/xl_cmdtable.c
@@ -50,7 +50,8 @@ struct cmd_spec cmd_table[] = {
"[options] [Domain]\n",
"-l, --long Output all VM details\n"
"-v, --verbose Prints out UUIDs and security context\n"
- "-Z, --context Prints out security context"
+ "-Z, --context Prints out security context\n"
+ "-n, --numa Prints out NUMA node affinity"
},
{ "destroy",
&main_destroy, 0, 1,

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