Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1605184
| From | Ken Goldman <kgold@linux.vnet.ibm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands |
| Date | 2017-03-20 23:50 +0100 |
| Message-ID | <tnehH-2Ul-9@gated-at.bofh.it> (permalink) |
| References | (1 earlier) <tgXjA-35T-31@gated-at.bofh.it> <tm2si-kO-33@gated-at.bofh.it> <tm2LE-KO-25@gated-at.bofh.it> <tm350-Ro-17@gated-at.bofh.it> <tn2gB-2R9-73@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 3/20/2017 5:54 AM, Alexander.Steffen@infineon.com wrote: > > There are a few special cases that need some thought though. For > example, it is possible to use an upgrade to switch the TPM family > from 1.2 to 2.0 (or vice versa). In this case it seems useful to let > the kernel reinitialize the TPM driver, so it uses the correct > timeouts for communication, activates the correct features (resource > manager or not?), etc., without needing to reboot the system. In practice, would a TPM upgrade from TPM 1.2 to TPM 2.0 even occur without a reboot? Is it an important use case? 1 - It would leave the SHA-256 PCRs in the reset state. 2 - It's possible that this upgrade would also require a BIOS upgrade.
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
RE: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands <Alexander.Steffen@infineon.com> - 2017-03-17 17:00 +0100
Re: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-03-17 17:20 +0100
RE: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands <Peter.Huewe@infineon.com> - 2017-03-17 17:40 +0100
RE: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands <Alexander.Steffen@infineon.com> - 2017-03-20 11:00 +0100
Re: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-03-20 18:30 +0100
Re: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands Ken Goldman <kgold@linux.vnet.ibm.com> - 2017-03-20 23:50 +0100
RE: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands <Alexander.Steffen@infineon.com> - 2017-03-21 17:00 +0100
Re: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-03-17 21:50 +0100
RE: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands <Alexander.Steffen@infineon.com> - 2017-03-20 11:00 +0100
Re: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-03-27 07:30 +0200
csiph-web