Revert "OvmfPkg: LoadLinuxLib: Use kernel's EFI entry point where available"

This reverts commit r14053. This change depends on changes to the
kernel which are not yet finalized/upstream.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14110 6f19259b-4bc3-4df7-8a09-765794883524

OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.S

@@ -13,7 +13,6 @@
 #------------------------------------------------------------------------------
 
 ASM_GLOBAL ASM_PFX(JumpToKernel)
-ASM_GLOBAL ASM_PFX(JumpToUefiKernel)
 
 #------------------------------------------------------------------------------
 # VOID
@@ -68,24 +67,3 @@ ASM_PFX(JumpToKernel):
     ret
 .code64
 
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# JumpToUefiKernel (
-#   EFI_HANDLE ImageHandle,
-#   EFI_SYSTEM_TABLE *SystemTable,
-#   VOID *KernelBootParams,
-#   VOID *KernelStart
-#   );
-#------------------------------------------------------------------------------
-ASM_PFX(JumpToUefiKernel):
-    movq    %rcx, %rdi
-    movq    %rdx, %rsi
-    movq    %r8, %rdx
-    xor     %rax, %rax
-    movl    0x264(%r8), %eax
-    addq    %rax, %r9
-    addq    $0x200, %r9
-    callq   %r9
-    ret
-

OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.asm

@@ -68,28 +68,4 @@ JumpToKernel PROC
 
 JumpToKernel ENDP
 
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; JumpToUefiKernel (
-;   EFI_HANDLE ImageHandle,        // rcx
-;   EFI_SYSTEM_TABLE *SystemTable, // rdx
-;   VOID *KernelBootParams         // r8
-;   VOID *KernelStart,             // r9
-;   );
-;------------------------------------------------------------------------------
-JumpToUefiKernel PROC
-
-    mov     rdi, rcx
-    mov     rsi, rdx
-    mov     rdx, r8
-    xor     rax, rax
-    mov     eax, [r8 + 264h]
-    add     r9, rax
-    add     r9, 200h
-    call    r9
-    ret
-
-JumpToUefiKernel ENDP
-
 END