Patent ID: 8479264

Claim:
A processing system comprising: a mapping device to receive a first command issued by a first client and a second command issued by a second client, and to generate a dedicated signal, the dedicated signal being separate from the first command and the second command, to uniquely identify the first command issued by the first client from the second command issued by the second client, the mapping device further to identify the first client based upon an Address Space Identifier (ASID); and a processing device to receive the first command, the second command, and the dedicated signal, the processing device having access to stored data for the first client and the second client where operations requested through the first command identified by the dedicated signal as being from the first client are restricted to data attached with rights previously assigned to the first client and operations requested through the second command identified by the dedicated signal as being from the second client are restricted to data attached with rights previously assigned to the second client.