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Date:      Mon, 27 Oct 2014 12:47:13 -0400
From:      Conrad Meyer <cse.cem@gmail.com>
To:        John Baldwin <jhb@freebsd.org>
Cc:        delphij@freebsd.org, Jung-uk Kim <jkim@freebsd.org>, "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org>
Subject:   Re: Rework hypervisor detection
Message-ID:  <CAG6CVpV8i6h6k=rJfNSG3Y2voAjLaQH97FTdO%2BhGGUO7T7rN7A@mail.gmail.com>
In-Reply-To: <3183374.mZUFeIh4pp@ralph.baldwin.cx>
References:  <3183374.mZUFeIh4pp@ralph.baldwin.cx>

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Hi John,

I don't have access to phabricator so I'll try and review in email.

> +#ifdef XEN
> +int vm_guest = VM_GUEST_XEN;
> +#else
> +int vm_guest = VM_GUEST_NO; /* Running as virtual machine guest? */
> +#endif

The whitespace between 'int' and 'vm_guest' in the second line seems
wrong (extra space?).

For vmware_hvcall() in x86/include/vmware.h, are you sure the inline
assembly is correct? Have you tried the detection on a VMware VM?
VMware's documentation specifies the arguments in a different
order[0], and at Isilon when we tried the port-based detection in a
slightly older revision of CURRENT, it didn't work (IIRC).

Everything else looks good to me, thanks.

[0]: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1009458

Best,
Conrad



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