Add 'xl tmem-set' command
Signed-off-by: Yang Hongyang<yanghy@xxxxxxxxxxxxxx>
diff -r f5c579127b26 tools/libxl/libxl.c
--- a/tools/libxl/libxl.c Wed May 19 23:35:17 2010 +0800
+++ b/tools/libxl/libxl.c Wed May 19 23:37:09 2010 +0800
@@ -2885,3 +2885,35 @@
return rc;
}
+
+static int32_t tmem_setop_from_string(char *set_name)
+{
+ if (!strcmp(set_name, "weight"))
+ return TMEMC_SET_WEIGHT;
+ else if (!strcmp(set_name, "cap"))
+ return TMEMC_SET_CAP;
+ else if (!strcmp(set_name, "compress"))
+ return TMEMC_SET_COMPRESS;
+ else
+ return -1;
+}
+
+int libxl_tmem_set(struct libxl_ctx *ctx, uint32_t domid, char* name, uint32_t
set)
+{
+ int rc;
+ int32_t subop = tmem_setop_from_string(name);
+
+ if (subop == -1) {
+ XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, -1,
+ "Invalid set, valid sets are <weight|cap|compress>");
+ return -1;
+ }
+ rc = xc_tmem_control(ctx->xch, -1, subop, domid, set, 0, 0, NULL);
+ if (rc < 0) {
+ XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc,
+ "Can not set tmem %s", name);
+ return -1;
+ }
+
+ return rc;
+}
diff -r f5c579127b26 tools/libxl/libxl.h
--- a/tools/libxl/libxl.h Wed May 19 23:35:17 2010 +0800
+++ b/tools/libxl/libxl.h Wed May 19 23:37:09 2010 +0800
@@ -517,5 +517,7 @@
int libxl_tmem_freeze(struct libxl_ctx *ctx, uint32_t domid);
int libxl_tmem_destroy(struct libxl_ctx *ctx, uint32_t domid);
int libxl_tmem_thaw(struct libxl_ctx *ctx, uint32_t domid);
+int libxl_tmem_set(struct libxl_ctx *ctx, uint32_t domid, char* name,
+ uint32_t set);
#endif /* LIBXL_H */
diff -r f5c579127b26 tools/libxl/xl_cmdimpl.c
--- a/tools/libxl/xl_cmdimpl.c Wed May 19 23:35:17 2010 +0800
+++ b/tools/libxl/xl_cmdimpl.c Wed May 19 23:37:09 2010 +0800
@@ -3822,3 +3822,64 @@
exit(0);
}
+int main_tmem_set(int argc, char **argv)
+{
+ char *dom = NULL;
+ uint32_t weight = 0, cap = 0, compress = 0;
+ int opt_w = 0, opt_c = 0, opt_p = 0;
+ int all = 0;
+ int opt;
+
+ while ((opt = getopt(argc, argv, "aw:c:p:h")) != -1) {
+ switch (opt) {
+ case 'a':
+ all = 1;
+ break;
+ case 'w':
+ weight = strtol(optarg, NULL, 10);
+ opt_w = 1;
+ break;
+ case 'c':
+ cap = strtol(optarg, NULL, 10);
+ opt_c = 1;
+ break;
+ case 'p':
+ compress = strtol(optarg, NULL, 10);
+ opt_p = 1;
+ break;
+ case 'h':
+ help("tmem-set");
+ exit(0);
+ default:
+ fprintf(stderr, "option `%c' not supported.\n", opt);
+ break;
+ }
+ }
+
+ dom = argv[optind];
+ if (!dom && all == 0) {
+ fprintf(stderr, "You must specify -a or a domain id.\n\n");
+ help("tmem-set");
+ exit(1);
+ }
+
+ if (all)
+ domid = -1;
+ else
+ find_domain(dom);
+
+ if (!opt_w && !opt_c && !opt_p) {
+ fprintf(stderr, "No set value specified.\n\n");
+ help("tmem-set");
+ exit(1);
+ }
+
+ if (opt_w)
+ libxl_tmem_set(&ctx, domid, "weight", weight);
+ if (opt_c)
+ libxl_tmem_set(&ctx, domid, "cap", cap);
+ if (opt_p)
+ libxl_tmem_set(&ctx, domid, "compress", compress);
+
+ exit(0);
+}
diff -r f5c579127b26 tools/libxl/xl_cmdimpl.h
--- a/tools/libxl/xl_cmdimpl.h Wed May 19 23:35:17 2010 +0800
+++ b/tools/libxl/xl_cmdimpl.h Wed May 19 23:37:09 2010 +0800
@@ -56,6 +56,7 @@
int main_tmem_freeze(int argc, char **argv);
int main_tmem_destroy(int argc, char **argv);
int main_tmem_thaw(int argc, char **argv);
+int main_tmem_set(int argc, char **argv);
void help(char *command);
diff -r f5c579127b26 tools/libxl/xl_cmdtable.c
--- a/tools/libxl/xl_cmdtable.c Wed May 19 23:35:17 2010 +0800
+++ b/tools/libxl/xl_cmdtable.c Wed May 19 23:37:09 2010 +0800
@@ -248,6 +248,15 @@
"[<Domain>|-a]",
" -a Thaw all tmem",
},
+ { "tmem-set",
+ &main_tmem_set,
+ "Change tmem settings",
+ "[<Domain>|-a] [-w[=WEIGHT]|-c[=CAP]|-p[=COMPRESS]]",
+ " -a Operate on all tmem\n"
+ " -w WEIGHT Weight (int)\n"
+ " -c CAP Cap (int)\n"
+ " -p COMPRESS Compress (int)",
+ },
};
int cmdtable_len = sizeof(cmd_table)/sizeof(struct cmd_spec);
--
Regards
Yang Hongyang
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