From d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:45:28 +0000
Subject: [PATCH] add boot partition size
---
kernel/arch/x86/purgatory/purgatory.c | 29 ++++-------------------------
1 files changed, 4 insertions(+), 25 deletions(-)
diff --git a/kernel/arch/x86/purgatory/purgatory.c b/kernel/arch/x86/purgatory/purgatory.c
index 7971f7a..7b37a41 100644
--- a/kernel/arch/x86/purgatory/purgatory.c
+++ b/kernel/arch/x86/purgatory/purgatory.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* purgatory: Runs between two kernels
*
@@ -5,38 +6,17 @@
*
* Author:
* Vivek Goyal <vgoyal@redhat.com>
- *
- * This source code is licensed under the GNU General Public License,
- * Version 2. See the file COPYING for more details.
*/
#include <linux/bug.h>
-#include <linux/sha256.h>
+#include <crypto/sha.h>
#include <asm/purgatory.h>
#include "../boot/string.h"
-unsigned long purgatory_backup_dest __section(.kexec-purgatory);
-unsigned long purgatory_backup_src __section(.kexec-purgatory);
-unsigned long purgatory_backup_sz __section(.kexec-purgatory);
+u8 purgatory_sha256_digest[SHA256_DIGEST_SIZE] __section(".kexec-purgatory");
-u8 purgatory_sha256_digest[SHA256_DIGEST_SIZE] __section(.kexec-purgatory);
-
-struct kexec_sha_region purgatory_sha_regions[KEXEC_SEGMENT_MAX] __section(.kexec-purgatory);
-
-/*
- * On x86, second kernel requries first 640K of memory to boot. Copy
- * first 640K to a backup region in reserved memory range so that second
- * kernel can use first 640K.
- */
-static int copy_backup_region(void)
-{
- if (purgatory_backup_dest) {
- memcpy((void *)purgatory_backup_dest,
- (void *)purgatory_backup_src, purgatory_backup_sz);
- }
- return 0;
-}
+struct kexec_sha_region purgatory_sha_regions[KEXEC_SEGMENT_MAX] __section(".kexec-purgatory");
static int verify_sha256_digest(void)
{
@@ -68,7 +48,6 @@
for (;;)
;
}
- copy_backup_region();
}
/*
--
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