linux-kernel - Re: SCSI driver for VMware's virtual HBA

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Date:	Tue, 13 Oct 2009 09:45:30 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	James Bottomley <James.Bottomley@...e.de>
CC:	akataria@...are.com, Randy Dunlap <randy.dunlap@...cle.com>,
	Mike Christie <michaelc@...wisc.edu>,
	Bart Van Assche <bvanassche@....org>,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
	Matthew Wilcox <matthew@....cx>,
	"pv-drivers@...are.com" <pv-drivers@...are.com>,
	Roland Dreier <rdreier@...co.com>, Greg KH <gregkh@...e.de>,
	LKML <linux-kernel@...r.kernel.org>,
	"virtualization@...ts.linux-foundation.org" 
	<virtualization@...ts.linux-foundation.org>,
	Chris Wright <chrisw@...s-sol.org>,
	"Chetan.Loke@...lex.Com" <Chetan.Loke@...lex.Com>,
	Daniel Walker <dwalker@...o99.com>,
	Rolf Eike Beer <eike-kernel@...tec.de>,
	Robert Love <robert.w.love@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: SCSI driver for VMware's virtual HBA - V5.

On 10/13/09 07:35, James Bottomley wrote:
>> Yep, below is a patch with the rename, the driver is now called
>> vmw_pvscsi. Do let me know if you have any other comments. Thanks.
>>     
> I'm still curious to know what the 'p' in the name stands for.  Surely
> this is a fully virtual driver, not a paravirtual one?
>   

I would assume that "pv" does stand for paravirtual.  The terminology is
a bit screwy: "fully virtualized" means that the device looks like a
real hardware device that is being emulated.  "Paravirtualized" means
that it is a completely virtual device which isn't an emulation of
anything; the guests know this this and talk to it accordingly.

    J

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