On 1/10/23 09:14, James Bottomley wrote:
On Mon, 2023-01-09 at 16:06 -0500, Stefan Berger wrote:
On 1/9/23 14:01, Stefan Berger wrote:
[...]
If you use TPM 2 for attestation then certain TPM 2 state migration
scenarios may become problematic. One could construct a scenario
where attestation
On Tue, 2023-01-10 at 09:47 -0500, Stefan Berger wrote:
> On 1/10/23 09:14, James Bottomley wrote:
> > On Mon, 2023-01-09 at 16:06 -0500, Stefan Berger wrote:
> > > On 1/9/23 14:01, Stefan Berger wrote:
> > [...]
> > > If you use TPM 2 for attestation then certain TPM 2 state
> > > migration scenar
On 1/10/23 09:55, James Bottomley wrote:
On Tue, 2023-01-10 at 09:47 -0500, Stefan Berger wrote:
On 1/10/23 09:14, James Bottomley wrote:
On Mon, 2023-01-09 at 16:06 -0500, Stefan Berger wrote:
On 1/9/23 14:01, Stefan Berger wrote:
[...]
If you use TPM 2 for attestation then certain TPM 2
On Mon, 2023-01-09 at 16:06 -0500, Stefan Berger wrote:
> On 1/9/23 14:01, Stefan Berger wrote:
[...]
> If you use TPM 2 for attestation then certain TPM 2 state migration
> scenarios may become problematic. One could construct a scenario
> where attestation preceeds some action that requires trust
On 1/9/23 14:01, Stefan Berger wrote:
On 1/9/23 13:51, James Bottomley wrote:
On Mon, 2023-01-09 at 13:34 -0500, Stefan Berger wrote:
On 1/9/23 12:55, James Bottomley wrote:
On Mon, 2023-01-09 at 17:52 +, Dr. David Alan Gilbert
wrote:
* James Bottomley (j...@linux.ibm.com) wrote:
On 1/9/23 13:51, James Bottomley wrote:
On Mon, 2023-01-09 at 13:34 -0500, Stefan Berger wrote:
On 1/9/23 12:55, James Bottomley wrote:
On Mon, 2023-01-09 at 17:52 +, Dr. David Alan Gilbert wrote:
* James Bottomley (j...@linux.ibm.com) wrote:
[...]
external MSSIM TPM emulator has to
On Mon, 2023-01-09 at 18:54 +, Dr. David Alan Gilbert wrote:
> * James Bottomley (j...@linux.ibm.com) wrote:
> > On Mon, 2023-01-09 at 13:34 -0500, Stefan Berger wrote:
> > >
> > >
> > > On 1/9/23 12:55, James Bottomley wrote:
> > > > On Mon, 2023-01-09 at 17:52 +, Dr. David Alan Gilbert
* James Bottomley (j...@linux.ibm.com) wrote:
> On Mon, 2023-01-09 at 13:34 -0500, Stefan Berger wrote:
> >
> >
> > On 1/9/23 12:55, James Bottomley wrote:
> > > On Mon, 2023-01-09 at 17:52 +, Dr. David Alan Gilbert wrote:
> > > > * James Bottomley (j...@linux.ibm.com) wrote:
> > > [...]
> >
On Mon, 2023-01-09 at 13:34 -0500, Stefan Berger wrote:
>
>
> On 1/9/23 12:55, James Bottomley wrote:
> > On Mon, 2023-01-09 at 17:52 +, Dr. David Alan Gilbert wrote:
> > > * James Bottomley (j...@linux.ibm.com) wrote:
> > [...]
> > > > external MSSIM TPM emulator has to be kept running to pr
On 1/9/23 12:55, James Bottomley wrote:
On Mon, 2023-01-09 at 17:52 +, Dr. David Alan Gilbert wrote:
* James Bottomley (j...@linux.ibm.com) wrote:
[...]
external MSSIM TPM emulator has to be kept running to preserve the
state. If you restart it, the migration will fail.
Document that
On Mon, 2023-01-09 at 17:52 +, Dr. David Alan Gilbert wrote:
> * James Bottomley (j...@linux.ibm.com) wrote:
[...]
> > external MSSIM TPM emulator has to be kept running to preserve the
> > state. If you restart it, the migration will fail.
>
> Document that and we're getting there.
The doc
* James Bottomley (j...@linux.ibm.com) wrote:
> On Mon, 2023-01-09 at 16:59 +, Dr. David Alan Gilbert wrote:
> > * Daniel P. Berrangé (berra...@redhat.com) wrote:
> > > On Fri, Dec 16, 2022 at 08:32:44AM -0500, Stefan Berger wrote:
> [...]
> > > > I do see it because the *volatile state* cannot
On Mon, 2023-01-09 at 16:59 +, Dr. David Alan Gilbert wrote:
> * Daniel P. Berrangé (berra...@redhat.com) wrote:
> > On Fri, Dec 16, 2022 at 08:32:44AM -0500, Stefan Berger wrote:
[...]
> > > I do see it because the *volatile state* cannot be extracted from
> > > this device. The state of the P
* Daniel P. Berrangé (berra...@redhat.com) wrote:
> On Fri, Dec 16, 2022 at 08:32:44AM -0500, Stefan Berger wrote:
> >
> >
> > On 12/16/22 07:54, Daniel P. Berrangé wrote:
> > > On Fri, Dec 16, 2022 at 07:28:59AM -0500, Stefan Berger wrote:
> > > >
> > > >
> > > > On 12/16/22 05:27, Daniel P. B
On 12/19/22 08:02, James Bottomley wrote:
On Mon, 2022-12-19 at 06:49 -0500, Stefan Berger wrote:
On 12/16/22 08:53, James Bottomley wrote:
I could do a blog post, but I really don't think you want this in
official documentation because that creates support expectations.
We get support
On Mon, 2022-12-19 at 06:49 -0500, Stefan Berger wrote:
>
>
> On 12/16/22 08:53, James Bottomley wrote:
>
> >
> > I could do a blog post, but I really don't think you want this in
> > official documentation because that creates support expectations.
>
> We get support expectations if we don't
On 12/16/22 08:53, James Bottomley wrote:
I could do a blog post, but I really don't think you want this in
official documentation because that creates support expectations.
We get support expectations if we don't mention it as not being supported. So,
since this driver is not supported t
On 12/16/22 11:13, James Bottomley wrote:
On Fri, 2022-12-16 at 11:08 -0500, Stefan Berger wrote:
On 12/16/22 10:48, James Bottomley wrote:
[...]
+The mssim backend supports snapshotting and migration, but the
state
+of the Microsoft Simulator server must be preserved (or the server
+kept r
On Fri, 2022-12-16 at 11:08 -0500, Stefan Berger wrote:
> On 12/16/22 10:48, James Bottomley wrote:
[...]
> > +The mssim backend supports snapshotting and migration, but the
> > state
> > +of the Microsoft Simulator server must be preserved (or the server
> > +kept running) outside of QEMU for rest
On 12/16/22 10:48, James Bottomley wrote:
On Fri, 2022-12-16 at 09:55 -0500, Stefan Berger wrote:
On 12/16/22 09:29, Daniel P. Berrangé wrote:
All the objections you're raising are related to the current
specifics of the implementation of the mssim remote server.
While valid, this is of
On Fri, 2022-12-16 at 09:55 -0500, Stefan Berger wrote:
>
>
> On 12/16/22 09:29, Daniel P. Berrangé wrote:
>
> >
> > All the objections you're raising are related to the current
> > specifics of the implementation of the mssim remote server.
> > While valid, this is of no concern to QEMU when d
On 12/16/22 09:29, Daniel P. Berrangé wrote:
All the objections you're raising are related to the current
specifics of the implementation of the mssim remote server.
While valid, this is of no concern to QEMU when deciding whether
to require a migration blocker on the client side. This is 3r
On Fri, Dec 16, 2022 at 08:32:44AM -0500, Stefan Berger wrote:
>
>
> On 12/16/22 07:54, Daniel P. Berrangé wrote:
> > On Fri, Dec 16, 2022 at 07:28:59AM -0500, Stefan Berger wrote:
> > >
> > >
> > > On 12/16/22 05:27, Daniel P. Berrangé wrote:
> > > > On Thu, Dec 15, 2022 at 03:53:43PM -0500, S
On 12/16/22 07:54, Daniel P. Berrangé wrote:
On Fri, Dec 16, 2022 at 07:28:59AM -0500, Stefan Berger wrote:
On 12/16/22 05:27, Daniel P. Berrangé wrote:
On Thu, Dec 15, 2022 at 03:53:43PM -0500, Stefan Berger wrote:
On 12/15/22 15:30, James Bottomley wrote:
On Thu, 2022-12-15 at 15:22
On 12/16/22 08:53, James Bottomley wrote:
On Fri, 2022-12-16 at 08:32 -0500, Stefan Berger wrote:
On 12/16/22 07:54, Daniel P. Berrangé wrote:
On Fri, Dec 16, 2022 at 07:28:59AM -0500, Stefan Berger wrote:
[...]
Nevertheless it needs documentation and has to handle migration
scenarios eith
On Fri, 2022-12-16 at 08:32 -0500, Stefan Berger wrote:
> On 12/16/22 07:54, Daniel P. Berrangé wrote:
> > On Fri, Dec 16, 2022 at 07:28:59AM -0500, Stefan Berger wrote:
[...]
> > > Nevertheless it needs documentation and has to handle migration
> > > scenarios either via a blocker or it has to han
On Fri, Dec 16, 2022 at 07:28:59AM -0500, Stefan Berger wrote:
>
>
> On 12/16/22 05:27, Daniel P. Berrangé wrote:
> > On Thu, Dec 15, 2022 at 03:53:43PM -0500, Stefan Berger wrote:
> > >
> > >
> > > On 12/15/22 15:30, James Bottomley wrote:
> > > > On Thu, 2022-12-15 at 15:22 -0500, Stefan Berg
On 12/16/22 05:27, Daniel P. Berrangé wrote:
On Thu, Dec 15, 2022 at 03:53:43PM -0500, Stefan Berger wrote:
On 12/15/22 15:30, James Bottomley wrote:
On Thu, 2022-12-15 at 15:22 -0500, Stefan Berger wrote:
On 12/15/22 15:07, James Bottomley wrote:
[...]
don't really have much interest i
On Thu, Dec 15, 2022 at 03:53:43PM -0500, Stefan Berger wrote:
>
>
> On 12/15/22 15:30, James Bottomley wrote:
> > On Thu, 2022-12-15 at 15:22 -0500, Stefan Berger wrote:
> > > On 12/15/22 15:07, James Bottomley wrote:
> > [...]
> > > > don't really have much interest in the migration use case, b
On 12/15/22 15:30, James Bottomley wrote:
On Thu, 2022-12-15 at 15:22 -0500, Stefan Berger wrote:
On 12/15/22 15:07, James Bottomley wrote:
[...]
don't really have much interest in the migration use case, but I
knew it should work like the passthrough case, so that's what I
tested.
I thin
On Thu, 2022-12-15 at 15:22 -0500, Stefan Berger wrote:
> On 12/15/22 15:07, James Bottomley wrote:
[...]
> > don't really have much interest in the migration use case, but I
> > knew it should work like the passthrough case, so that's what I
> > tested.
>
> I think your device needs to block migr
On 12/15/22 15:07, James Bottomley wrote:
On Thu, 2022-12-15 at 14:57 -0500, Stefan Berger wrote:
On 12/15/22 14:40, James Bottomley wrote:
On Thu, 2022-12-15 at 14:35 -0500, Stefan Berger wrote:
[...]
You should also add a description to docs/specs/tpm.rst.
Description of what? It func
On Thu, 2022-12-15 at 14:57 -0500, Stefan Berger wrote:
> On 12/15/22 14:40, James Bottomley wrote:
> > On Thu, 2022-12-15 at 14:35 -0500, Stefan Berger wrote:
[...]
> > > You should also add a description to docs/specs/tpm.rst.
> >
> > Description of what? It functions exactly like passthrough o
On 12/15/22 14:40, James Bottomley wrote:
On Thu, 2022-12-15 at 14:35 -0500, Stefan Berger wrote:
On 12/15/22 14:22, James Bottomley wrote:
On Thu, 2022-12-15 at 13:46 -0500, Stefan Berger wrote:
On 12/15/22 13:01, James Bottomley wrote:
From: James Bottomley
The Microsoft Simulator
On Thu, 2022-12-15 at 14:35 -0500, Stefan Berger wrote:
>
>
> On 12/15/22 14:22, James Bottomley wrote:
> > On Thu, 2022-12-15 at 13:46 -0500, Stefan Berger wrote:
> > >
> > >
> > > On 12/15/22 13:01, James Bottomley wrote:
> > > > From: James Bottomley
> > > >
> > > > The Microsoft Simulator
On 12/15/22 14:22, James Bottomley wrote:
On Thu, 2022-12-15 at 13:46 -0500, Stefan Berger wrote:
On 12/15/22 13:01, James Bottomley wrote:
From: James Bottomley
The Microsoft Simulator (mssim) is the reference emulation platform
for the TCG TPM 2.0 specification.
https://github.com/Mic
On Thu, 2022-12-15 at 13:46 -0500, Stefan Berger wrote:
>
>
> On 12/15/22 13:01, James Bottomley wrote:
> > From: James Bottomley
> >
> > The Microsoft Simulator (mssim) is the reference emulation platform
> > for the TCG TPM 2.0 specification.
> >
> > https://github.com/Microsoft/ms-tpm-20-re
On 12/15/22 13:01, James Bottomley wrote:
From: James Bottomley
The Microsoft Simulator (mssim) is the reference emulation platform
for the TCG TPM 2.0 specification.
https://github.com/Microsoft/ms-tpm-20-ref.git
It exports a fairly simple network socket baset protocol on two
sockets, one
From: James Bottomley
The Microsoft Simulator (mssim) is the reference emulation platform
for the TCG TPM 2.0 specification.
https://github.com/Microsoft/ms-tpm-20-ref.git
It exports a fairly simple network socket baset protocol on two
sockets, one for command (default 2321) and one for control
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