diff options
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm b/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm index 1daaa72..cd95b03 100644 --- a/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm +++ b/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm @@ -64,9 +64,6 @@ BITS 16 mov si, MP_CPU_EXCHANGE_INFO_FIELD (GdtrProfile)
o32 lgdt [cs:si]
- mov si, MP_CPU_EXCHANGE_INFO_FIELD (IdtrProfile)
-o32 lidt [cs:si]
-
;
; Switch to protected mode
;
@@ -154,6 +151,11 @@ BITS 64 LongModeStart:
mov esi, ebx
+
+ ; Set IDT table at the start of 64 bit code
+ lea edi, [esi + MP_CPU_EXCHANGE_INFO_FIELD (IdtrProfile)]
+ lidt [edi]
+
lea edi, [esi + MP_CPU_EXCHANGE_INFO_FIELD (InitFlag)]
cmp qword [edi], 1 ; ApInitConfig
jnz GetApicId
|