From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:53262) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R8u7i-0000We-QL for qemu-devel@nongnu.org; Wed, 28 Sep 2011 09:24:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1R8u7h-0006kF-5p for qemu-devel@nongnu.org; Wed, 28 Sep 2011 09:24:30 -0400 Received: from e31.co.us.ibm.com ([32.97.110.149]:44006) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R8u7g-0006jz-9e for qemu-devel@nongnu.org; Wed, 28 Sep 2011 09:24:29 -0400 Received: from /spool/local by us.ibm.com with XMail ESMTP for from ; Wed, 28 Sep 2011 07:24:16 -0600 Received: from d03av03.boulder.ibm.com (d03av03.boulder.ibm.com [9.17.195.169]) by d03relay02.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p8SDOAGD127342 for ; Wed, 28 Sep 2011 07:24:11 -0600 Received: from d03av03.boulder.ibm.com (loopback [127.0.0.1]) by d03av03.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id p8SDO97E028304 for ; Wed, 28 Sep 2011 07:24:10 -0600 Message-Id: <20110928132255.156431784@linux.vnet.ibm.com> Date: Wed, 28 Sep 2011 09:22:55 -0400 From: Stefan Berger Subject: [Qemu-devel] [PATCH V11 0/5] Qemu Trusted Platform Module (TPM) integration List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: stefanb@linux.vnet.ibm.com, qemu-devel@nongnu.org Cc: anbang.ruan@cs.ox.ac.uk, mst@redhat.com, andreas.niederl@iaik.tugraz.at, serge@hallyn.com The following series of patches adds TPM (Trusted Platform Module) support to Qemu. An emulator for the TIS (TPM Interface Spec) interface is added that provides the basis for accessing a 'backend' implementing the actual TPM functionality. The TIS emulator serves as a 'frontend' enabling for example Linux's TPM TIS (tpm_tis) driver. In this series I am posting a backend implementation that makes use of the host's TPM through a passthrough driver, which on Linux is accessed using /dev/tpm0. v11: - applies to checkout of 46f3069 (Sep 28) - some filing on the documentation - small nits fixed v10: - applies to checkout of 1ce9ce6 (Sep 27) - addressed Michael Tsirkin's comments on v9 v9: - addressed Michael Tsirkin's and other reviewers' comments - only posting Andreas Niederl's passthrough driver as the backend driver v8: - applies to checkout of f0fb8b7 (Aug 30) - fixing compilation error pointed out by Andreas Niederl - adding patch that allows to feed an initial state into the libtpms TPM - following memory API changes (glib) where necessary v7: - applies to checkout of b9c6cbf (Aug 9) - measuring the modules if multiboot is used - coding style fixes v6: - applies to checkout of 75ef849 (July 2nd) - some fixes and improvements to existing patches; see individual patches - added a patch with a null driver responding to all TPM requests with a response indicating failure; this backend has no dependencies and can alwayy be built; - added a patch to support the hashing of kernel, ramfs and command line if those were passed to Qemu using -kernel, -initrd and -append respectively. Measurements are taken, logged, and passed to SeaBIOS using the firmware interface. - libtpms revision 7 now requires 83kb of block storage due to having more NVRAM space v5: - applies to checkout of 1fddfba1 - adding support for split command line using the -tpmdev ... -device ... options while keeping the -tpm option - support for querying the device models using -tpm model=? - support for monitor 'info tpm' - adding documentation of command line options for man page and web page - increasing room for ACPI tables that qemu reserves to 128kb (from 64kb) - adding (experimental) support for block migration - adding (experimental) support for taking measurements when kernel, initrd and kernel command line are directly passed to Qemu v4: - applies to checkout of d2d979c6 - more coding style fixes - adding patch for supporting blob encryption (in addition to the existing QCoW2-level encryption) - this allows for graceful termination of a migration if the target is detected to have a wrong key - tested with big and little endian hosts - main thread releases mutex while checking for work to do on behalf of backend - introducing file locking (fcntl) on the block layer for serializing access to shared (QCoW2) files (used during migration) v3: - Building a null driver at patch 5/8 that responds to all requests with an error response; subsequently this driver is transformed to the libtpms-based driver for real TPM functionality - Reworked the threading; dropped the patch for qemu_thread_join; the main thread synchronizing with the TPM thread termination may need to write data to the block storage while waiting for the thread to terminate; did not previously show a problem but is safer - A lot of testing based on recent git checkout 4b4a72e5 (4/10): - migration of i686 VM from x86_64 host to i686 host to ppc64 host while running tests inside the VM - tests with S3 suspend/resume - tests with snapshots - multiple-hour tests with VM suspend/resume (using virsh save/restore) while running a TPM test suite inside the VM All tests passed; [not all of them were done on the ppc64 host] v2: - splitting some of the patches into smaller ones for easier review - fixes in individual patches Regards, Stefan