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Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM
From: |
Daniel P. Berrange |
Subject: |
Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM |
Date: |
Thu, 16 Jun 2016 09:25:17 +0100 |
User-agent: |
Mutt/1.6.1 (2016-04-27) |
On Thu, Jun 16, 2016 at 09:05:20AM +0100, Dr. David Alan Gilbert wrote:
> * Stefan Berger (address@hidden) wrote:
> > On 06/15/2016 03:30 PM, Dr. David Alan Gilbert wrote:
>
> <snip>
>
> > > So what was the multi-instance vTPM proxy driver patch set about?
> >
> > That's for containers.
>
> Why have the two mechanisms? Can you explain how the multi-instance
> proxy works; my brief reading when I saw your patch series seemed
> to suggest it could be used instead of CUSE for the non-container case.
One of the key things that was/is not appealing about this CUSE approach
is that it basically invents a new ioctl() mechanism for talking to
a TPM chardev. With in-kernel vTPM support, QEMU probably doesn't need
to have any changes at all - its existing driver for talking to TPM
char devices ought to just work. All that would be required is libvirt
support too configure the vTPM instances.
Regards,
Daniel
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- Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM, BICKFORD, JEFFREY E, 2016/06/01
- Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM, Stefan Berger, 2016/06/13
- Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM, Stefan Berger, 2016/06/13
- Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM, Dr. David Alan Gilbert, 2016/06/15
- Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM, Stefan Berger, 2016/06/16
- Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM, Dr. David Alan Gilbert, 2016/06/16
- Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM, Stefan Berger, 2016/06/16
- Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM, Dr. David Alan Gilbert, 2016/06/16
- Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM, Stefan Berger, 2016/06/16
- Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM, Dr. David Alan Gilbert, 2016/06/16
- Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM, Stefan Berger, 2016/06/16
- Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM, SERBAN, CRISTINA, 2016/06/16