From: Michael Roth <mdroth@linux.vnet.ibm.com>
To: qemu-devel@nongnu.org
Cc: linuxram@us.ibm.com, qemu-ppc@nongnu.org, david@gibson.dropbear.id.au
Subject: [Qemu-devel] [RFC PATCH 0/2] spapr: Implement H_TPM_COMM for accessing host TPM device
Date: Thu, 11 Jul 2019 20:19:32 -0500 [thread overview]
Message-ID: <20190712011934.29863-1-mdroth@linux.vnet.ibm.com> (raw)
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.
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(-)
next reply other threads:[~2019-07-12 1:43 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-12 1:19 Michael Roth [this message]
2019-07-12 1:19 ` [Qemu-devel] [PATCH 1/2] docs/specs: initial spec summary for Ultravisor-related hcalls Michael Roth
2019-07-12 6:40 ` David Gibson
2019-07-12 15:13 ` Michael Roth
2019-07-15 2:25 ` David Gibson
2019-07-16 16:25 ` Michael Roth
2019-07-12 1:19 ` [Qemu-devel] [PATCH 2/2] spapr: initial implementation for H_TPM_COMM hcall Michael Roth
2019-07-12 6:46 ` David Gibson
2019-07-12 14:34 ` Michael Roth
2019-07-15 2:25 ` David Gibson
2019-07-16 16:30 ` Michael Roth
2019-07-17 1:29 ` David Gibson
2019-07-17 20:53 ` Michael Roth
2019-07-18 1:53 ` David Gibson
2019-07-12 6:40 ` [Qemu-devel] [RFC PATCH 0/2] spapr: Implement H_TPM_COMM for accessing host TPM device David Gibson
2019-07-12 15:33 ` no-reply
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