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Date:      Fri, 29 Apr 2016 14:21:40 -0700
From:      Peter Grehan <grehan@freebsd.org>
To:        Marcin Cieslak <saper@saper.info>
Cc:        Craig Rodrigues <rodrigc@FreeBSD.org>, "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org>, "jenkins-admin@freebsd.org" <jenkins-admin@freebsd.org>, Alan Somers <asomers@freebsd.org>
Subject:   Re: bhyve: unhandled inl 0x402
Message-ID:  <5723D064.7040702@freebsd.org>
In-Reply-To: <alpine.BSF.2.11.1604292009050.1768@z.fncre.vasb>
References:  <CAG=rPVcC=mAHiLQeXP34yEjfhq6H9Yg3-_8XTqzX29y88ZY9Fg@mail.gmail.com> <5723B0B0.9070103@freebsd.org> <alpine.BSF.2.11.1604292009050.1768@z.fncre.vasb>

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>>> acpi0: <BHYVE BVXSDT> on motherboard
>>> Unhandled inl 0x0402 at 0xffffffff8039c2bd
>>
>>   Hmmm, that's a 4-byte read from the ACPI PM1 control register, which is
>> advertized as being size 2 in the FADT table :( The recent acpica import might
>> be doing this.
>
> Isn't 0x402 used also as the qemu default debug port?

  The default value for that (isa-debugcon) is 0xe9. Not sure why most o 
doc on the web overrides that with "iobase=0x402", but in any case, the 
inl is from a FreeBSD guest so qemu isn't involved.

later,

Peter.




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