Refactor sevstep kernel patch into repository

1 files changed, 32 insertions, 0 deletions

diff --git a/test/sevstep.c b/test/sevstep.c
new file mode 100644
index 0000000..3ca7f03
--- /dev/null
+++ b/test/sevstep.c
@@ -0,0 +1,32 @@
+#include "sevstep/uapi.h"
+
+#include <linux/kvm.h>
+#include <sys/ioctl.h>
+
+#include <err.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+int
+main(int argc, const char **argv)
+{
+	track_all_pages_t tracking;
+	int ret, fd;
+
+	fd = open("/proc/cachepc");
+	if (!fd) err(1, "open");
+
+	tracking.track_mode = KVM_PAGE_TRACK_ACCESS;
+	ret = ioctl(fd, KVM_USPT_TRACK_ALL, &tracking); 
+	if (ret == -1) err(1, "ioctl TRACK_ALL ACCESS");
+
+
+	tracking.track_mode = KVM_PAGE_TRACK_RESET_ACCESSED;
+	ret = ioctl(fd, KVM_USPT_TRACK_ALL, &tracking); 
+	if (ret == -1) err(1, "ioctl TRACK_ALL RESET_ACCESSED");
+
+	ret = ioctl(fd, KVM_USPT_UNTRACK_ALL, &tracking); 
+	if (ret == -1) err(1, "ioctl UNTRACK_ALL");
+
+	close(fd);
+}