From b90fac1cfe2fc858e60b6875752ea9dc69b72850 Mon Sep 17 00:00:00 2001
From: Shuo Liu <shuo.liu@intel.com>
Date: Tue, 5 Jul 2022 02:37:16 +0800
Subject: arch/x86: Shadow ROM tables into EBDA

For platforms without writable PAM-F segment support (e.g. some
simics virtual platforms), put ROM table pointers (e.g. ACPI/SMBIOS
low pointers) into EBDA.

Signed-off-by: Shuo Liu <shuo.liu@intel.com>
Signed-off-by: Gang Chen <gang.c.chen@intel.com>
Signed-off-by: Jincheng Li <jincheng.li@intel.com>
Change-Id: I2aac74708279813f9a848044d470fdc980ea4305
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84322
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
---
 src/arch/x86/Kconfig | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/arch/x86/Kconfig')

diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig
index 4737e3cca1..2db526e34c 100644
--- a/src/arch/x86/Kconfig
+++ b/src/arch/x86/Kconfig
@@ -439,4 +439,11 @@ config DEFAULT_EBDA_SIZE
 	default 0x400
 	help
 	  The default value of EBDA size is 0x400.
+
+config SHADOW_ROM_TABLE_TO_EBDA
+	bool
+	default n
+	help
+	  For platforms without writable PAM-F segment support. Put ROM table
+	  pointers (e.g. ACPI/SMBIOS low pointers) into EBDA.
 endif
-- 
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