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Re: [Qemu-devel] [PATCH 0/5] tpm: Extend the TPM TIS implementation
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From: |
Michael S. Tsirkin |
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Subject: |
Re: [Qemu-devel] [PATCH 0/5] tpm: Extend the TPM TIS implementation |
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Date: |
Tue, 9 Dec 2014 16:45:04 +0200 |
On Tue, Dec 09, 2014 at 09:40:28AM -0500, Stefan Berger wrote:
> On 12/09/2014 09:35 AM, Michael S. Tsirkin wrote:
> >On Tue, Dec 09, 2014 at 09:18:54AM -0500, Stefan Berger wrote:
> >>The following series of patches extends the TPM TIS implementation to
> >>version 1.3. This will lead to a TIS version that supports TPM 2.
> >>For this I would post relatively small patches afterwards.
> >>
> >>Regards,
> >> Stefan
> >
> >Since this is guest visible, should this be limited
> >to new machine types, to avoid breaking migrating
> >guests across hypervisor versions?
>
> Migration is not currently possible with TPM, since TPM (passthrough) is
> preventing it.
>
> Stefan
OK, for live migration, fair enough.
For off-line migration: will the following still work:
- boot guest with tpm 1.3. use tpm in some way
- halt, start guest on old qemu with tpm 1.2
?
- [Qemu-devel] [PATCH 0/5] tpm: Extend the TPM TIS implementation, Stefan Berger, 2014/12/09
- [Qemu-devel] [PATCH 5/5] tpm: Support for capability flags of TIS 1.3, Stefan Berger, 2014/12/09
- [Qemu-devel] [PATCH 2/5] tpm: Allow 32 & 16 bit accesses to the registers, Stefan Berger, 2014/12/09
- [Qemu-devel] [PATCH 3/5] tpm: Support for XFIFO register, Stefan Berger, 2014/12/09
- [Qemu-devel] [PATCH 4/5] tpm: Support for TIS selftest done flag, Stefan Berger, 2014/12/09
- [Qemu-devel] [PATCH 1/5] tpm: Extend sts register to 32 bit, Stefan Berger, 2014/12/09
- Re: [Qemu-devel] [PATCH 0/5] tpm: Extend the TPM TIS implementation, Michael S. Tsirkin, 2014/12/09