1 files changed, 104 insertions, 0 deletions
diff --git a/sys/amd64/vmm/vmm_stat.c b/sys/amd64/vmm/vmm_stat.c
new file mode 100644
index 0000000..ae60979
--- /dev/null
+++ b/sys/amd64/vmm/vmm_stat.c
@@ -0,0 +1,104 @@
+/*-
+ * Copyright (c) 2011 NetApp, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/smp.h>
+
+#include <machine/vmm.h>
+#include "vmm_stat.h"
+
+static int vstnum;
+static struct vmm_stat_type *vsttab[MAX_VMM_STAT_TYPES];
+
+static MALLOC_DEFINE(M_VMM_STAT, "vmm stat", "vmm stat");
+
+void
+vmm_stat_init(void *arg)
+{
+	struct vmm_stat_type *vst = arg;
+
+	/* We require all stats to identify themselves with a description */
+	if (vst->desc == NULL)
+		return;
+
+	if (vstnum >= MAX_VMM_STAT_TYPES) {
+		printf("Cannot accomodate vmm stat type \"%s\"!\n", vst->desc);
+		return;
+	}
+
+	vst->index = vstnum;
+	vsttab[vstnum++] = vst;
+}
+
+int
+vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *buf)
+{
+	int i;
+	uint64_t *stats;
+
+	if (vcpu < 0 || vcpu >= VM_MAXCPU)
+		return (EINVAL);
+		
+	stats = vcpu_stats(vm, vcpu);
+	for (i = 0; i < vstnum; i++)
+		buf[i] = stats[i];
+	*num_stats = vstnum;
+	return (0);
+}
+
+void *
+vmm_stat_alloc(void)
+{
+	u_long size;
+	
+	size = vstnum * sizeof(uint64_t);
+
+	return (malloc(size, M_VMM_STAT, M_ZERO | M_WAITOK));
+}
+
+void
+vmm_stat_free(void *vp)
+{
+	free(vp, M_VMM_STAT);
+}
+
+const char *
+vmm_stat_desc(int index)
+{
+
+	if (index >= 0 && index < vstnum)
+		return (vsttab[index]->desc);
+	else
+		return (NULL);
+}