On 6/19/2015 5:26 PM, Luigi Semenzato wrote: > > No, you're on your own for that. Trunks only does the > marshalling/unmarshalling of TPM commands. > > At least on Linux, request/response atomicity is guaranteed by the > driver, which makes /dev/tpm0 an exclusive-open device (only one > process at a time can hold it open).
That is my understanding, which means that if /dev/tpm0 grants user level permissions, one application can open the TPM and block all other applications. Even if applications cooperate, doing open/close pairs, they will interfere with each other. Another purpose of tcsd is resource management, swapping items in and out of the TPMas needed for each application. If that limitation is satisfactory, you don't need a privileged scheduler like tcsd. ------------------------------------------------------------------------------ Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical & virtual servers, alerts via email & sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o _______________________________________________ TrouSerS-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/trousers-users
