Fix bug that home addresses for register parameters must be allocated for calling C function from X64 assembly code to follow x64 calling convention.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9303 6f19259b-4bc3-4df7-8a09-765794883524
2009-09-22 09:19:59 +00:00
parent 60bd4ccd45
commit 82dae5efb3
3 changed files with 4 additions and 0 deletions
--- a/EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseTimerLibLocalApic/X64/X86LocalApicTimerInitialize.asm
+++ b/EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseTimerLibLocalApic/X64/X86LocalApicTimerInitialize.asm
@@ -31,7 +31,9 @@ EXTERNDEF  InternalX86GetApicBase:PROC
 ;   );
 ;------------------------------------------------------------------------------
 CpuInitLocalApicTimer    PROC
+    sub rsp, 28h  ;Reserve home addresses and make RSP 16-byte aligned
    call InternalX86GetApicBase
+    add rsp, 28h
    mov dword ptr [rax + 3e0h], 0ah
    bts dword ptr [rax + 320h], 17
    mov dword ptr [rax + 380h], -1