From 318b0d714a7ef184ceb445d16f63c9687e89b10e Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Fri, 1 Mar 2024 08:43:59 +0100
Subject: OvmfPkg/ResetVector: print post codes for 4/5 level paging

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20240301074402.98625-8-kraxel@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Oliver Steffen <osteffen@redhat.com>
Cc: Michael Roth <michael.roth@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
[lersek@redhat.com: turn the "Cc:" message headers from Gerd's on-list
 posting into "Cc:" tags in the commit message, in order to pacify
 "PatchCheck.py"]
---
 OvmfPkg/ResetVector/Ia32/PageTables64.asm | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/OvmfPkg/ResetVector/Ia32/PageTables64.asm b/OvmfPkg/ResetVector/Ia32/PageTables64.asm
index 2d7fd52..e15945d 100644
--- a/OvmfPkg/ResetVector/Ia32/PageTables64.asm
+++ b/OvmfPkg/ResetVector/Ia32/PageTables64.asm
@@ -69,6 +69,10 @@ BITS    32
 ; Argument: upper 32 bits of the page table entries
 ;
 %macro CreatePageTables4Level 1
+
+    ; indicate 4-level paging
+    debugShowPostCode 0x41
+
     ;
     ; Top level Page Directory Pointers (1 * 512GB entry)
     ;
@@ -153,6 +157,10 @@ BITS    32
 ; level 3 directory.
 ;
 %macro CreatePageTables5Level 1
+
+    ; indicate 5-level paging
+    debugShowPostCode 0x51
+
     ; level 5
     mov     dword[PT_ADDR (0)], PT_ADDR (0x1000) + PAGE_PDE_DIRECTORY_ATTR
     mov     dword[PT_ADDR (4)], %1
-- 
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