From mboxrd@z Thu Jan 1 00:00:00 1970 From: stefanb@linux.vnet.ibm.com (Stefan Berger) Date: Thu, 4 May 2017 07:14:27 -0400 Subject: [PATCH v2 3/3] tpm: vtpm_proxy: Add ioctl to request locality prepended to command In-Reply-To: <20170504091738.rxl77hjzf6vnpuda@intel.com> References: <1493384538-27883-1-git-send-email-stefanb@linux.vnet.ibm.com> <1493384538-27883-4-git-send-email-stefanb@linux.vnet.ibm.com> <20170503223747.zefh76m4youqlgje@intel.com> <40cd7d48-f6d1-39f4-99a3-916c7cdbb636@linux.vnet.ibm.com> <20170504091738.rxl77hjzf6vnpuda@intel.com> Message-ID: To: linux-security-module@vger.kernel.org List-Id: linux-security-module.vger.kernel.org On 05/04/2017 05:17 AM, Jarkko Sakkinen wrote: > On Wed, May 03, 2017 at 07:40:48PM -0400, Stefan Berger wrote: >> On 05/03/2017 06:37 PM, Jarkko Sakkinen wrote: >>> On Fri, Apr 28, 2017 at 09:02:18AM -0400, Stefan Berger wrote: >>>> Add an ioctl to request that the locality be prepended to every TPM >>>> command. >>> Don't really understand this change. Why locality is prenpended? >> Commands can be executed under locality 0-3 and for some commands it is >> important to know which locality a user may have chosen. How else should we >> convey that locality to the TPM emulator ? > Why this is not in the commit message? > > More scalable way to do this would be to have a set of vtpm proxy > commands. There could be a command for requesting and releasing > locality. That would be more clean. I would think that if someone wanted to use locality it's the client using /dev/tpm(rm)0 calling an ioctl or so and the vtpm proxy then merely passing that locality to the backend (TPM emulator). I suppose the intention is to support something like that following the addition of the new functions request_locality and release_locality? -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html