x86/microcode: use const qualifier for microcode buffer

The buffer holding the microcode bits should be marked as const.

Signed-off-by: Eslam Elnikety <elnikety@amazon.com>
Acked-by: Jan Beulich <jbeulich@suse.com>

diff --git a/xen/arch/x86/microcode.c b/xen/arch/x86/microcode.c
index 844a33bbd67c7c2cdbef7c44df102bbcae9ad050..71e881b24377852897e41394213060ff5162dc06 100644 (file)
--- a/xen/arch/x86/microcode.c
+++ b/xen/arch/x86/microcode.c
@@ -86,7 +86,7 @@ static enum {
  * memory.
  */
 struct ucode_mod_blob {
-    void *data;
+    const void *data;
     size_t size;
 };
 
@@ -749,7 +749,7 @@ int microcode_update_one(bool start_update)
 int __init early_microcode_update_cpu(void)
 {
     int rc = 0;
-    void *data = NULL;
+    const void *data = NULL;
     size_t len;
     struct microcode_patch *patch;