Refactor xen-ucode tool by adding usage() to handle usage\help messages
As we add more command options this will keep help\usage messages in common
block
[v2]
1- Improved message description.
2- Fixed formatting and indentation.
3- Error message to print to stderr.
Signed-off-by: Fouad Hilly <fouad.hi...@cloud.com>
---
tools/misc/xen-ucode.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/tools/misc/xen-ucode.c b/tools/misc/xen-ucode.c
index c6ae6498d659..0c0b2337b4ea 100644
--- a/tools/misc/xen-ucode.c
+++ b/tools/misc/xen-ucode.c
@@ -17,6 +17,15 @@ static xc_interface *xch;
static const char intel_id[] = "GenuineIntel";
static const char amd_id[] = "AuthenticAMD";
+static void usage(const char *name)
+{
+ printf("%s: Xen microcode updating tool\n"
+ "Usage: %s [microcode file] [options]\n"
+ "Options:\n"
+ "show-cou-info show CPU information and exit\n",
+ name, name);
+}
+
static void show_curr_cpu(FILE *f)
{
int ret;
--
2.42.0
