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Re: [Qemu-ppc] [RFC PATCH 0/2] spapr: Implement H_TPM_COMM for accessing
From: |
David Gibson |
Subject: |
Re: [Qemu-ppc] [RFC PATCH 0/2] spapr: Implement H_TPM_COMM for accessing host TPM device |
Date: |
Fri, 12 Jul 2019 16:40:51 +1000 |
User-agent: |
Mutt/1.12.0 (2019-05-25) |
On Thu, Jul 11, 2019 at 08:19:32PM -0500, Michael Roth wrote:
> These patches are also available at:
>
> https://github.com/mdroth/qemu/commits/spapr-tpm-hcall-v0
>
> This patchset implements the H_TPM_COMM hypercall, which provides a way
> for an Ultravisor to pass raw TPM commands on to a host's TPM device,
> either directly or through a TPM Resource Manager (needed to support
> multiple guests).
>
> Secure Guests running on an Ultravisor have a symmetric key that is
> encrypted using a public key that is bound to a trusted host's TPM
> hardware. This hypercall provides a means to decrypt the symmetric
> key on behalf of a Secure Guest using the host's TPM hardware.
>
> More details are provided in the spec summary introduced in patch 1.
This is obviously 4.2 material, other comments on the individual patches.
>
> docs/specs/ppc-spapr-uv-hcalls.txt | 74
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> hw/ppc/Makefile.objs | 1 +
> hw/ppc/spapr.c | 27 +++++++++++++++++++++++++++
> hw/ppc/spapr_hcall_tpm.c | 135
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> hw/ppc/trace-events | 4 ++++
> include/hw/ppc/spapr.h | 7 ++++++-
> 6 files changed, 247 insertions(+), 1 deletion(-)
>
>
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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- Re: [Qemu-ppc] [PATCH 1/2] docs/specs: initial spec summary for Ultravisor-related hcalls, (continued)
[Qemu-ppc] [PATCH 2/2] spapr: initial implementation for H_TPM_COMM hcall, Michael Roth, 2019/07/11
- Re: [Qemu-ppc] [PATCH 2/2] spapr: initial implementation for H_TPM_COMM hcall, David Gibson, 2019/07/12
- Re: [Qemu-ppc] [PATCH 2/2] spapr: initial implementation for H_TPM_COMM hcall, Michael Roth, 2019/07/12
- Re: [Qemu-ppc] [PATCH 2/2] spapr: initial implementation for H_TPM_COMM hcall, David Gibson, 2019/07/15
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 2/2] spapr: initial implementation for H_TPM_COMM hcall, Michael Roth, 2019/07/16
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 2/2] spapr: initial implementation for H_TPM_COMM hcall, David Gibson, 2019/07/16
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 2/2] spapr: initial implementation for H_TPM_COMM hcall, Michael Roth, 2019/07/17
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 2/2] spapr: initial implementation for H_TPM_COMM hcall, David Gibson, 2019/07/17
Re: [Qemu-ppc] [RFC PATCH 0/2] spapr: Implement H_TPM_COMM for accessing host TPM device,
David Gibson <=
Re: [Qemu-ppc] [Qemu-devel] [RFC PATCH 0/2] spapr: Implement H_TPM_COMM for accessing host TPM device, no-reply, 2019/07/12