This is a note to let you know that I've just added the patch titled
x86/head/64: Move the __head definition to <asm/init.h>
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-head-64-move-the-__head-definition-to-asm-init.h.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d2a285d65bfde3218fd0c3b88794d0135ced680b Mon Sep 17 00:00:00 2001
From: Hou Wenlong <houwenlong.hwl@xxxxxxxxxxxx>
Date: Tue, 17 Oct 2023 15:08:06 +0800
Subject: x86/head/64: Move the __head definition to <asm/init.h>
From: Hou Wenlong <houwenlong.hwl@xxxxxxxxxxxx>
commit d2a285d65bfde3218fd0c3b88794d0135ced680b upstream.
Move the __head section definition to a header to widen its use.
An upcoming patch will mark the code as __head in mem_encrypt_identity.c too.
Signed-off-by: Hou Wenlong <houwenlong.hwl@xxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Link: https://lore.kernel.org/r/0583f57977be184689c373fe540cbd7d85ca2047.1697525407.git.houwenlong.hwl@xxxxxxxxxxxx
Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/include/asm/init.h | 2 ++
arch/x86/kernel/head64.c | 3 +--
2 files changed, 3 insertions(+), 2 deletions(-)
--- a/arch/x86/include/asm/init.h
+++ b/arch/x86/include/asm/init.h
@@ -2,6 +2,8 @@
#ifndef _ASM_X86_INIT_H
#define _ASM_X86_INIT_H
+#define __head __section(".head.text")
+
struct x86_mapping_info {
void *(*alloc_pgt_page)(void *); /* allocate buf for page table */
void *context; /* context for alloc_pgt_page */
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -41,6 +41,7 @@
#include <asm/trapnr.h>
#include <asm/sev.h>
#include <asm/tdx.h>
+#include <asm/init.h>
/*
* Manage page tables very early on.
@@ -84,8 +85,6 @@ static struct desc_ptr startup_gdt_descr
.address = 0,
};
-#define __head __section(".head.text")
-
static void __head *fixup_pointer(void *ptr, unsigned long physaddr)
{
return ptr - (void *)_text + (void *)physaddr;
Patches currently in stable-queue which might be from houwenlong.hwl@xxxxxxxxxxxx are
queue-6.6/x86-head-64-move-the-__head-definition-to-asm-init.h.patch
