On Tue, Jul 07, 2020 at 12:09:11AM -0400, Stefan Berger wrote: > On 7/7/20 12:03 AM, Jarkko Sakkinen wrote: > > On Mon, Jul 06, 2020 at 11:08:12PM -0400, Stefan Berger wrote: > > > On 7/6/20 10:24 PM, Jarkko Sakkinen wrote: > > > > On Mon, Jul 06, 2020 at 07:55:26PM -0400, Stefan Berger wrote: > > > > > On 7/6/20 7:09 PM, Jarkko Sakkinen wrote: > > > > > > On Mon, Jul 06, 2020 at 02:19:53PM -0400, Stefan Berger wrote: > > > > > > > From: Stefan Berger <stefanb@xxxxxxxxxxxxx> > > > > > > > > > > > > > > In case a TPM2 is attached, search for a TPM2 ACPI table when trying > > > > > > > to get the event log from ACPI. If one is found, use it to get the > > > > > > > start and length of the log area. This allows non-UEFI systems, such > > > > > > > as SeaBIOS, to pass an event log when using a TPM2. > > > > > > > > > > > > > > Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxx> > > > > > > Do you think that QEMU with TPM 1.2 emulator turned on would be a viable > > > > > > way to test this? > > > > > Yes. > > > > Is the emulator bundled with QEMU or does it have to be installed > > > > separately? > > > It has to be installed separately. On Fedora 31 it would just be a `sudo dnf > > > -y install swtpm-tools` and you should be good to go with libvirt / > > > virt-manager. > > Is there some packaging for Debian/Ubuntu available? > > > So far may not be available yet. I had *experimented* with a PPA once: > https://launchpad.net/~stefanberger/+archive/ubuntu/swtpm-focal There is a snap available: name: swtpm-mvo summary: Libtpms-based TPM emulator publisher: Michael Vogt (mvo) store-url: https://snapcraft.io/swtpm-mvo license: unset description: | Libtpms-based TPM emulator with socket, character device, and Linux CUSE interface. commands: - swtpm-mvo.swtpm services: swtpm-mvo.swtpm-sock: simple, enabled, active snap-id: HNl1TwHRBk3OtXQ8OriRB93FDZ6vman7 tracking: latest/edge refresh-date: today at 02:05 EEST channels: latest/stable: – latest/candidate: – latest/beta: 0.1.0 2019-07-26 (11) 3MB - latest/edge: 0.1.0 2020-07-08 (75) 3MB - installed: 0.1.0 (74) 3MB - This is the version information: ❯ swtpm-mvo.swtpm --version TPM emulator version 0.4.0, Copyright (c) 2014 IBM Corp. However, if I try to run the first example from [*], I get: ❯ swtpm-mvo.swtpm socket --tpmstate dir=/tmp/mytpm1 \ --ctrl type=unixio,path=/tmp/mytpm1/swtpm-sock \ --log level=20 swtpm: Could not open UnixIO socket: No such file or directory [*] https://www.qemu.org/docs/master/specs/tpm.html /Jarkko
