From: Juergen Gross <juergen.gross@ts.fujitsu.com>
To: Keir Fraser <keir.fraser@eu.citrix.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
Kouya Shimura <kouya@jp.fujitsu.com>
Subject: Re: [PATCH] vmx: correct EIP value of task-state segment
Date: Fri, 31 Jul 2009 14:18:01 +0200 [thread overview]
Message-ID: <4A72E0F9.70902@ts.fujitsu.com> (raw)
In-Reply-To: <C698834C.1124F%keir.fraser@eu.citrix.com>
Keir Fraser wrote:
> On 31/07/2009 10:34, "Kouya Shimura" <kouya@jp.fujitsu.com> wrote:
>
>>> The reference manuals are sketchy enough you may need to test out some task
>>> switches on SVM and VMX hardware to make sure you make patches that really
>>> do the right thing.
>> Sorry, I don't have much time to test this.
>> But the OS works fine with this patch. (of course, the OS is for native)
>> I confirmed Windows(XP,2008Server) never use a task switch.
>
> They do on blue screen I believe. OTOH I suppose they don't come back from
> it. I'll have to queue this up for testing myself.
>
> Is the "int 2" in that popular proprietary OS "BS2000" perchance? ;-)
:-)
No, it isn't.
And we are not doing task switches.
Juergen
--
Juergen Gross Principal Developer Operating Systems
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next prev parent reply other threads:[~2009-07-31 12:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-31 1:19 [PATCH] vmx: correct EIP value of task-state segment Kouya Shimura
2009-07-31 7:36 ` Keir Fraser
2009-07-31 9:34 ` Kouya Shimura
2009-07-31 10:17 ` Keir Fraser
2009-07-31 12:18 ` Juergen Gross [this message]
2009-07-31 12:39 ` Keir Fraser
2009-08-20 12:40 ` Keir Fraser
2009-08-24 2:28 ` Kouya Shimura
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