On Wed, Mar 9, 2016 at 9:39 AM, Stefan Berger
[off-list ref] wrote:
This patch implements a driver for supporting multiple emulated TPMs in a
system.
The driver implements a device /dev/vtpmx that is used to created
a client device pair /dev/tpmX (e.g., /dev/tpm10) and a server side that
is accessed using a file descriptor returned by an ioctl.
The device /dev/tpmX is the usual TPM device created by the core TPM
driver. Applications or kernel subsystems can send TPM commands to it
and the corresponding server-side file descriptor receives these
commands and delivers them to an emulated TPM.
Nifty!
Is anyone considering writing a modification or replacement of
trousers that creates claims the real tpm and exposes a vtpm that
handles multiplexing internally? Does the vtpm driver intelligently
support multiple simultaneous clients?
--Andy