Merge ca2a45a5ee into 2970e5699b

2026-08-27 00:23:19 -04:00 · 2026-08-13 17:39:52 -07:00 · 2026-08-13 17:39:52 -07:00 · d09582db18
commit d09582db18
parent 2970e5699b ca2a45a5ee
1 changed files with 5 additions and 1 deletions
--- a/UefiPayloadPkg/Library/SmmStoreLib/X64/SmmStore.nasm
+++ b/UefiPayloadPkg/Library/SmmStoreLib/X64/SmmStore.nasm
@ -37,8 +37,12 @@ ASM_PFX(TriggerSmi):
    jne     @Return                     ; SMM modified rax, return now
    push    rcx                         ; save rcx to stack
    mov     rcx, 10000
-    rep     pause                       ; add a small delay
+@Pause:
+    pause                               ; add a small delay
+    loop    @Pause
    pop     rcx                         ; restore rcx
+    cmp     rax, rcx                    ; Check for a response during the delay
+    jne     @Return
    cmp     r8, 0
    je      @Return
    dec     r8