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From: Willow Schlanger <wschlanger-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: A small fix
Date: Mon, 25 Jun 2007 19:00:09 -0800	[thread overview]
Message-ID: <46808139.8040008@gmail.com> (raw)

Hi, in vmx_vcpu_setup() is this code:

	vmcs_writel(GUEST_IDTR_BASE, 0);
	vmcs_write32(GUEST_IDTR_LIMIT, 0xffff);

But if you use SIDT on a real processor, after boot-up, you will see the 
real-mode base is in fact 0, but the limit is 0x3ff. That is, in fact, 
the base an limit you are supposed to use when you switch back to real 
mode from protected mode.

So 0xffff should be changed to 0x03ff in the lines above.


Please write back with any comments...
Willow Schlanger

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             reply	other threads:[~2007-06-26  3:00 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-26  3:00 Willow Schlanger [this message]
     [not found] ` <46808139.8040008-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2007-06-27 21:36   ` A small fix Avi Kivity

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