linux-kernel - Re: [PATCH v6 08/11] tpm: Driver for supporting multiple emulated TPMs

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Message-ID: <20160310221220.GB9735@obsidianresearch.com>
Date:	Thu, 10 Mar 2016 15:12:20 -0700
From:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:	Stefan Berger <stefanb@...ux.vnet.ibm.com>,
	tpmdd-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org, linux-api@...r.kernel.org
Subject: Re: [PATCH v6 08/11] tpm: Driver for supporting multiple emulated
 TPMs

On Thu, Mar 10, 2016 at 06:39:15PM +0200, Jarkko Sakkinen wrote:
> Some might want to use this in a way that the created virtual device
> is not closed when /dev/vtpmx is closed.

No, there is no reason to create an API like that - TPM's are
stateful, one cannot close the server side and re-connect and expect
things to continue to work.

Jason