From 748e4f3d702def1a4bff191e0cf93b6a05340f01 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:41:34 +0000
Subject: [PATCH] add gpio led uart

---
 kernel/arch/x86/include/asm/e820/types.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/kernel/arch/x86/include/asm/e820/types.h b/kernel/arch/x86/include/asm/e820/types.h
index c3aa4b5..314f75d 100644
--- a/kernel/arch/x86/include/asm/e820/types.h
+++ b/kernel/arch/x86/include/asm/e820/types.h
@@ -29,6 +29,14 @@
 	E820_TYPE_PRAM		= 12,
 
 	/*
+	 * Special-purpose memory is indicated to the system via the
+	 * EFI_MEMORY_SP attribute. Define an e820 translation of this
+	 * memory type for the purpose of reserving this range and
+	 * marking it with the IORES_DESC_SOFT_RESERVED designation.
+	 */
+	E820_TYPE_SOFT_RESERVED	= 0xefffffff,
+
+	/*
 	 * Reserved RAM used by the kernel itself if
 	 * CONFIG_INTEL_TXT=y is enabled, memory of this type
 	 * will be included in the S3 integrity calculation

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