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 v2 01/13] x86, boot: move verify_cpu.S after 0x200
Date: Sat, 17 Nov 2012 23:09:19 -0800 [thread overview]
Message-ID: <1353222571-31544-2-git-send-email-yinghai@kernel.org> (raw)
In-Reply-To: <1353222571-31544-1-git-send-email-yinghai@kernel.org>
We are short of space before 0x200 that is entry for startup_64.
And we can not change startup_64 to other value --- ABI ?
We could move function verify_cpu down, and that could avoid extra
code of jmp back and forth.
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:[~2012-11-18 7:09 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-18 7:09 [PATCH v2 00/13] x86, boot, 64bit: Add support for loading ramdisk and bzImage high Yinghai Lu
2012-11-18 7:09 ` Yinghai Lu [this message]
2012-11-18 7:09 ` [PATCH v2 02/13] x86, boot: Move lldt/ltr out of 64bit code section Yinghai Lu
2012-11-18 7:09 ` [PATCH v2 03/13] x86: Add macro for 64bit entry startup_64 Yinghai Lu
2012-11-19 22:42 ` H. Peter Anvin
2012-11-19 22:53 ` Yinghai Lu
2012-11-19 23:13 ` H. Peter Anvin
2012-11-19 23:46 ` Yinghai Lu
2012-11-19 23:55 ` H. Peter Anvin
2012-11-20 0:39 ` Yinghai Lu
2012-11-20 19:20 ` Yinghai Lu
2012-11-20 20:44 ` H. Peter Anvin
2012-11-20 20:55 ` Yinghai Lu
2012-11-20 21:12 ` H. Peter Anvin
2012-11-21 0:20 ` Yinghai Lu
2012-11-21 0:28 ` H. Peter Anvin
2012-11-21 0:32 ` Yinghai Lu
2012-11-21 0:34 ` Yinghai Lu
2012-11-21 0:45 ` H. Peter Anvin
2012-11-18 7:09 ` [PATCH v2 04/13] x86, 64bit: set extra ident page table for whole kernel range Yinghai Lu
2012-11-18 7:09 ` [PATCH v2 05/13] x86, 64bit: add support for loading kernel above 512G Yinghai Lu
2012-11-18 7:09 ` [PATCH v2 06/13] x86: Merge early_reserve_initrd for 32bit and 64bit Yinghai Lu
2012-11-18 7:09 ` [PATCH v2 07/13] x86: add get_ramdisk_image/size Yinghai Lu
2012-11-18 7:09 ` [PATCH v2 08/13] x86, boot: add get_cmd_line_ptr() Yinghai Lu
2012-11-18 7:09 ` [PATCH v2 09/13] x86, boot: Don't check if cmd_line_ptr is accessible in misc/decompressor() Yinghai Lu
2012-11-18 7:09 ` [PATCH v2 10/13] x86, boot: update cmd_line_ptr to unsigned long Yinghai Lu
2012-11-18 7:09 ` [PATCH v2 11/13] x86: use io_remap to access real_mode_data Yinghai Lu
2012-11-18 7:09 ` [PATCH v2 12/13] x86, boot: add fields to support load bzImage and ramdisk high Yinghai Lu
2012-11-18 7:09 ` [PATCH v2 13/13] x86: remove 1024g limitation for kexec buffer on 64bit Yinghai Lu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1353222571-31544-2-git-send-email-yinghai@kernel.org \
--to=yinghai@kernel.org \
--cc=ebiederm@xmission.com \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=matt.fleming@intel.com \
--cc=mingo@elte.hu \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox