enable docker ppp

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2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/arch/x86/purgatory/entry64.S
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@@ -1,3 +1,4 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Copyright (C) 2003,2004  Eric Biederman (ebiederm@xmission.com)
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  * Copyright (C) 2014  Red Hat Inc.
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@@ -5,18 +6,15 @@
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  * Author(s): Vivek Goyal <vgoyal@redhat.com>
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  *
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  * This code has been taken from kexec-tools.
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- *
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- * This source code is licensed under the GNU General Public License,
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- * Version 2.  See the file COPYING for more details.
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  */
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+
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+#include <linux/linkage.h>
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 	.text
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 	.balign 16
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 	.code64
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-	.globl entry64, entry64_regs
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-
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-entry64:
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+SYM_CODE_START(entry64)
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 	/* Setup a gdt that should be preserved */
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 	lgdt gdt(%rip)
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@@ -56,10 +54,11 @@
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 	/* Jump to the new code... */
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 	jmpq	*rip(%rip)
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+SYM_CODE_END(entry64)
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 	.section ".rodata"
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 	.balign 4
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-entry64_regs:
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+SYM_DATA_START(entry64_regs)
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 rax:	.quad 0x0
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 rcx:	.quad 0x0
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 rdx:	.quad 0x0
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@@ -77,13 +76,14 @@
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 r14:	.quad 0x0
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 r15:	.quad 0x0
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 rip:	.quad 0x0
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-	.size entry64_regs, . - entry64_regs
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+SYM_DATA_END(entry64_regs)
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 	/* GDT */
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 	.section ".rodata"
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 	.balign 16
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-gdt:
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-	/* 0x00 unusable segment
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+SYM_DATA_START_LOCAL(gdt)
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+	/*
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+	 * 0x00 unusable segment
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 	 * 0x08 unused
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 	 * so use them as gdt ptr
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 	 */
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@@ -96,6 +96,8 @@
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 	/* 0x18 4GB flat data segment */
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 	.word 0xFFFF, 0x0000, 0x9200, 0x00CF
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-gdt_end:
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-stack:	.quad   0, 0
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-stack_init:
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+SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end)
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+
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+SYM_DATA_START_LOCAL(stack)
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+	.quad   0, 0
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+SYM_DATA_END_LABEL(stack, SYM_L_LOCAL, stack_init)