Mike D. Day
2007-May-04 22:32 UTC
[Xen-devel] [PATCH] 4/4 "nemesis" scheduling domains for Xen
C program to create and destroy scheduling domains.
signed-off-by: Mike D. Day <ncmike@us.ibm.com>
--
Makefile | 38 ++++++++++++++++++++++++++
nemesis.c | 88 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
--
diff -r 90e7ec389b4e tools/nemesis/Makefile
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/nemesis/Makefile Fri May 04 17:53:36 2007 -0400
@@ -0,0 +1,38 @@
+XEN_ROOT=../..
+include $(XEN_ROOT)/tools/Rules.mk
+
+CFLAGS += -Werror
+
+INCLUDES += -I $(XEN_XC)
+INCLUDES += -I $(XEN_LIBXC)
+CFLAGS += $(INCLUDES)
+
+HDRS = $(wildcard *.h)
+
+TARGETS := nemesis
+
+INSTALL_BIN = $(TARGETS)
+INSTALL_SBIN +
+.PHONY: all
+all: build
+
+.PHONY: build
+build: $(TARGETS)
+
+.PHONY: install
+install: build
+ [ -d $(DESTDIR)/usr/bin ] || $(INSTALL_DIR) $(DESTDIR)/usr/bin
+ [ -d $(DESTDIR)/usr/sbin ] || $(INSTALL_DIR) $(DESTDIR)/usr/sbin
+ $(INSTALL_PROG) $(INSTALL_BIN) $(DESTDIR)/usr/bin
+ $(INSTALL_PROG) $(INSTALL_SBIN) $(DESTDIR)/usr/sbin
+
+.PHONY: clean
+clean:
+ $(RM) *.o $(TARGETS) *~
+
+%.o: %.c $(HDRS) Makefile
+ $(CC) -c $(CFLAGS) -o $@ $<
+
+nemesis: %: %.o Makefile
+ $(CC) $(CFLAGS) -o $@ $< -L$(XEN_LIBXC) -lxenctrl
diff -r 90e7ec389b4e tools/nemesis/nemesis.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/nemesis/nemesis.c Fri May 04 18:28:48 2007 -0400
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) International Business Machines Corp., 2007
+ * Author(s): Mike D. Day <ncmike@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; under version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <xenctrl.h>
+
+void usage(void)
+{
+ printf("usage: nemesis <action> -d dom -s ndom\n");
+ printf("\taction can be -a to add <dom> to <ndom> ,
or\n");
+ printf("\t -r to remove <dom> from <ndom>\n");
+ printf("\t for example: nemesis -a -d3 -s1\n");
+}
+
+int main(int argc, char *argv[])
+{
+
+ int i, handle, action = 0, ret;
+ uint16_t adom = 0, ndom = 0, reason;
+ char *tail;
+
+ if (argc != 4)
+ {
+ usage();
+ return 0;
+ }
+
+
+ for (i = 1; i < 4; i++)
+ {
+ if (*(argv[i] + 1) == ''a'')
+ action = 1;
+ else if (*(argv[i] + 1) == ''r'')
+ action = 2;
+ else if (*(argv[i] + 1) == ''d'')
+ {
+ adom = strtol(argv[i]+2, &tail, 0);
+ }
+ else if (*(argv[i] + 1) == ''s'')
+ {
+ ndom = strtol(argv[i]+2, &tail, 0);
+ }
+ else
+ {
+ usage();
+ return 0;
+ }
+ }
+
+ handle = xc_interface_open();
+ if (handle < 0)
+ {
+ printf("unable to open library - must execute as root\n");
+ return 0;
+ }
+
+ if (action == 1)
+ ret = xc_add_adom(handle, adom, ndom, &reason);
+ else if (action == 2)
+ ret = xc_del_adom(handle, adom, ndom, &reason);
+ else
+ {
+ usage();
+ ret = 1;
+ }
+ xc_interface_close(handle);
+ return ret;
+}
--
Mike D. Day
IBM LTC
Cell: 919 412-3900
Sametime: ncmike@us.ibm.com AIM: ncmikeday Yahoo: ultra.runner
PGP key: http://www.ncultra.org/ncmike/pubkey.asc
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