From: Yinghai Lu <yinghai@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
"H. Peter Anvin" <hpa@zytor.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
linux-kernel@vger.kernel.org, Yinghai Lu <yinghai@kernel.org>,
Matt Fleming <matt.fleming@intel.com>
Subject: [PATCH v5 01/13] x86, boot: move verify_cpu.S after 0x200
Date: Tue, 27 Nov 2012 23:50:30 -0800 [thread overview]
Message-ID: <1354089042-10023-2-git-send-email-yinghai@kernel.org> (raw)
In-Reply-To: <1354089042-10023-1-git-send-email-yinghai@kernel.org>
We are short of space before 0x200 that is entry for startup_64.
According to hpa, we can not change startup_64 to other offset and
that become ABI now.
We could move function verify_cpu down, and that could avoid extra
code of jmp back and forth if we would move other lines.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Matt Fleming <matt.fleming@intel.com>
---
arch/x86/boot/compressed/head_64.S | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 2c4b171..2c3cee4 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -182,8 +182,6 @@ no_longmode:
hlt
jmp 1b
-#include "../../kernel/verify_cpu.S"
-
/*
* Be careful here startup_64 needs to be at a predictable
* address so I can export it in an ELF header. Bootloaders
@@ -349,6 +347,9 @@ relocated:
*/
jmp *%rbp
+ .code32
+#include "../../kernel/verify_cpu.S"
+
.data
gdt:
.word gdt_end - gdt
--
1.7.7
next prev parent reply other threads:[~2012-11-28 7:51 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-28 7:50 [PATCH v5 00/13] x86, boot, 64bit: Add support for loading ramdisk and bzImage above 4G Yinghai Lu
2012-11-28 7:50 ` Yinghai Lu [this message]
2012-11-28 7:50 ` [PATCH v5 02/13] x86, boot: Move lldt/ltr out of 64bit code section Yinghai Lu
2012-11-28 7:50 ` [PATCH v5 03/13] x86, 64bit: Set extra ident mapping for whole kernel range Yinghai Lu
2012-12-21 22:28 ` Konrad Rzeszutek Wilk
2012-12-21 22:35 ` Yinghai Lu
2012-12-21 22:39 ` H. Peter Anvin
2012-12-21 22:51 ` Yinghai Lu
2012-12-21 22:54 ` H. Peter Anvin
2012-12-21 23:40 ` Konrad Rzeszutek Wilk
2012-11-28 7:50 ` [PATCH v5 04/13] x86: Merge early_reserve_initrd for 32bit and 64bit Yinghai Lu
2012-11-28 7:50 ` [PATCH v5 05/13] x86: add get_ramdisk_image/size() Yinghai Lu
2012-11-28 7:50 ` [PATCH v5 06/13] x86, boot: add get_cmd_line_ptr() Yinghai Lu
2012-11-28 7:50 ` [PATCH v5 07/13] x86, boot: move checking of cmd_line_ptr out of common path Yinghai Lu
2012-11-28 7:50 ` [PATCH v5 08/13] x86, boot: update cmd_line_ptr to unsigned long Yinghai Lu
2012-11-28 7:50 ` [PATCH v5 09/13] x86: use io_remap to access real_mode_data Yinghai Lu
2012-11-28 7:50 ` [PATCH v5 10/13] x86, boot: add fields to support load bzImage and ramdisk above 4G Yinghai Lu
2012-11-28 7:50 ` [PATCH v5 11/13] x86: remove 1024G limitation for kexec buffer on 64bit Yinghai Lu
2012-11-28 7:50 ` [PATCH v5 12/13] x86, 64bit: Print init kernel lowmap correctly Yinghai Lu
2012-12-21 22:26 ` Konrad Rzeszutek Wilk
2012-12-21 22:44 ` Yinghai Lu
2012-12-21 23:39 ` Konrad Rzeszutek Wilk
2012-12-21 23:52 ` Yinghai Lu
2012-12-22 2:14 ` Konrad Rzeszutek Wilk
2012-11-28 7:50 ` [PATCH v5 13/13] x86, mm: Fix page table early allocation offset checking Yinghai Lu
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