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Re: [Xen-devel] VMX status report. Xen: #17501 & Xen0: #524 -- two new i

To: "Li, Haicheng" <haicheng.li@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] VMX status report. Xen: #17501 & Xen0: #524 -- two new issues
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Wed, 23 Apr 2008 14:27:56 +0100
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Thread-topic: [Xen-devel] VMX status report. Xen: #17501 & Xen0: #524 -- two new issues
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These issues are now all resolved:

On 23/4/08 13:18, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> wrote:

>> 1. Fail to create any HVM guest on IA32PAE host
>> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1221
> Looks like it is due to Kevin Wolf's changeset 17499. Your attempt to go
> back to older tools obviously didn't work -- the backtrace in xend.log comes
> from a line introduced by c/s 17499.

I reverted this changeset.

>> 2. Dom0 hangs at booting if loglvl and guest_loglvl are set as all.
>> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1222
> Well, the obvious answer is to print less drivel in the VT-d code. There's
> no reason at all to print so much useless text, even in a debug build.

I greatly reduced printk() count in vtd code. If this stuff was useful for
debugging (which for the most part it probably wasn't) you might add it back
via an ifdef'ed debug macro.

> Actually a second point is that we should drop characters from the 16kB
> serial buffer rather than spin in the hypervisor waiting for the buffer to
> empty. I'll implement that.

This is now done.

 -- Keir

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