X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=UefiCpuPkg%2FCpuMpPei%2FX64%2FMpFuncs.nasm;h=3ddf26c29dc7eb6e92c1faf9d738b9f49cc8c071;hp=99669ce95ede87b8f8f102b0178d7313967e7b33;hb=46ba0f63e9adaa2147366fcbd68c1c6f672b647b;hpb=34ff8715bf7724c52b878ddf55f494ccb0a35da6

diff --git a/UefiCpuPkg/CpuMpPei/X64/MpFuncs.nasm b/UefiCpuPkg/CpuMpPei/X64/MpFuncs.nasm
index 99669ce95e..3ddf26c29d 100644
--- a/UefiCpuPkg/CpuMpPei/X64/MpFuncs.nasm
+++ b/UefiCpuPkg/CpuMpPei/X64/MpFuncs.nasm
@@ -19,6 +19,7 @@
 ;-------------------------------------------------------------------------------
 
 %include "MpEqu.inc"
+extern ASM_PFX(InitializeFloatingPointUnits)
 
 DEFAULT REL
 
@@ -155,6 +156,10 @@ CProcedureInvoke:
     push       rbp
     mov        rbp, rsp
 
+    mov        rax, ASM_PFX(InitializeFloatingPointUnits)
+    sub        rsp, 20h
+    call       rax               ; Call assembly function to initialize FPU per UEFI spec
+    add        rsp, 20h
 
     mov        edx, ebx          ; edx is NumApsExecuting
     mov        ecx, esi