From: Andi Kleen <ak@suse.de>
To: ebiederm@xmission.com (Eric W. Biederman)
Cc: Magnus Damm <magnus@valinux.co.jp>,
fastboot@lists.osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86_64: Reload CS when startup_64 is used.
Date: Tue, 22 Aug 2006 11:01:06 +0200 [thread overview]
Message-ID: <20060822110106.7582fcb9.ak@suse.de> (raw)
In-Reply-To: <m1y7thqi7b.fsf_-_@ebiederm.dsl.xmission.com>
On Tue, 22 Aug 2006 02:37:44 -0600
ebiederm@xmission.com (Eric W. Biederman) wrote:
>
> In long mode the %cs is largely a relic. However there are a few cases
> like lret
You mean iret?
> + * jump. In addition we need to ensure %cs is set so we make this
> + * a far return.
> */
> movq initial_code(%rip),%rax
> - jmp *%rax
> + pushq $__KERNEL_CS
> + pushq %rax
> + lretq
Ok merged thanks
-Andi
next prev parent reply other threads:[~2006-08-22 9:01 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-21 9:54 [PATCH][RFC] x86_64: Reload CS when startup_64 is used Magnus Damm
2006-08-21 10:19 ` Andi Kleen
2006-08-21 13:29 ` [Fastboot] " Magnus Damm
2006-08-21 14:16 ` Andi Kleen
2006-08-22 0:47 ` Magnus Damm
2006-08-21 14:17 ` Vivek Goyal
2006-08-21 14:24 ` Andi Kleen
2006-08-21 14:46 ` Vivek Goyal
2006-08-21 15:04 ` Andi Kleen
2006-08-21 20:02 ` Eric W. Biederman
2006-08-21 20:10 ` Andi Kleen
2006-08-21 21:00 ` Eric W. Biederman
2006-08-21 21:02 ` Eric W. Biederman
2006-08-22 0:58 ` Magnus Damm
2006-08-22 3:41 ` Eric W. Biederman
2006-08-22 4:10 ` Magnus Damm
2006-08-22 8:03 ` Andi Kleen
2006-08-22 8:37 ` [PATCH] " Eric W. Biederman
2006-08-22 8:53 ` [Fastboot] " Magnus Damm
2006-08-22 9:25 ` Eric W. Biederman
2006-08-23 3:10 ` Magnus Damm
2006-08-22 9:01 ` Andi Kleen [this message]
2006-08-22 9:20 ` Eric W. Biederman
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