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From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: Stefan Berger
	<stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
Cc: linux-security-module-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v3 1/3] tpm: vtpm_proxy: Implement new ioctl to get supported flags
Date: Thu, 4 May 2017 09:34:16 -0600	[thread overview]
Message-ID: <20170504153416.GA15930@obsidianresearch.com> (raw)
In-Reply-To: <1493909787-1848-2-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>

On Thu, May 04, 2017 at 10:56:25AM -0400, Stefan Berger wrote:
> Implement VTPM_PROXY_IOC_GET_SUPT_FLAGS ioctl to get the bitmask
> of flags that the vtpm_proxy driver supports in the
> VTPM_PROXY_IOC_NEW_DEV ioctl. This helps user space in deciding
> which flags to set in that ioctl.

you might be better off just having a VTPM_PROXY_IO_ENABLE_FEATURE
.feature = LOCALITY

If that fails then the feature is not supported, no real need for the
query in that case.

Not sure about Jarkko's point on request/release locality.. Is there a
scenario where the emulator should fail the request locality?

Jason

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  parent reply	other threads:[~2017-05-04 15:34 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-04 14:56 [PATCH v3 0/3] Extend the vTPM proxy driver to pass locality Stefan Berger
     [not found] ` <1493909787-1848-1-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2017-05-04 14:56   ` [PATCH v3 1/3] tpm: vtpm_proxy: Implement new ioctl to get supported flags Stefan Berger
     [not found]     ` <1493909787-1848-2-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2017-05-04 15:34       ` Jason Gunthorpe [this message]
2017-05-04 17:13         ` Stefan Berger
2017-05-04 17:20           ` Jason Gunthorpe
2017-05-04 17:28             ` Stefan Berger
2017-05-04 17:31               ` Jason Gunthorpe
2017-05-04 17:33                 ` Stefan Berger
2017-05-04 14:56   ` [PATCH v3 2/3] tpm: vtpm_proxy: Implement request_locality function Stefan Berger
2017-05-04 14:56 ` [PATCH v3 3/3] tpm: vtpm_proxy: Add flag for ioctl to request locality prepended to command Stefan Berger

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