Merge pull request #402 from msft-jlange/tdx_efer

boot_stage2: avoid modifying EFER if possible
coconut-svsm · Jul 4, 2024 · 3e9ac9e · 3e9ac9e
2 parents ba195a5 + 8a09af0
commit 3e9ac9e
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/kernel/src/boot_stage2.rs b/kernel/src/boot_stage2.rs
@@ -88,7 +88,9 @@ global_asm!(
         movl $0xc0000080, %ecx
         rdmsr
         bts $8, %eax
+        jc 2f
         wrmsr
+        2:
 
         /* Load the static page table root. */
         movl $pgtable, %eax