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Re: [Qemu-devel] [v9 00/19] QEMU:Xen stubdom vTPM for HVM virtual machin
From: |
Stefano Stabellini |
Subject: |
Re: [Qemu-devel] [v9 00/19] QEMU:Xen stubdom vTPM for HVM virtual machine(QEMU Part) |
Date: |
Thu, 14 Jul 2016 16:33:58 +0100 (BST) |
User-agent: |
Alpine 2.10 (DEB 1266 2009-07-14) |
Hi Quan,
thanks for CC'ing me. address@hidden is the right address to
reach me now.
I am also CC'ing Anthony Perard who is Xen co-maintainer in QEMU.
Cheers,
Stefano
On Wed, 13 Jul 2016, Xu, Quan wrote:
> Emil, Thanks for your effort ( today I just come back to return my laptop).
>
> btw, address@hidden may be the right email.
> Stefan / Stefano, could you help us review these patches? Thanks in
> advance!!
>
> Quan
>
>
> On July 10, 2016 7:48 PM, Emil Condrea <address@hidden> wrote:
> > *INTRODUCTION*
> > The goal of virtual Trusted Platform Module (vTPM) is to provide a TPM
> > functionality to virtual machines (Fedora, Ubuntu, Redhat, Windows .etc).
> > This allows programs to interact with a TPM in a virtual machine the same
> > way
> > they interact with a TPM on the physical system. Each virtual machine gets
> > its
> > own unique, emulated, software TPM. Each major component of vTPM is
> > implemented as a stubdom, providing secure separation guaranteed by the
> > hypervisor.
> >
> > The vTPM stubdom is a Xen mini-OS domain that emulates a TPM for the
> > virtual machine to use. It is a small wrapper around the Berlios TPM
> > emulator.
> > TPM commands are passed from mini-os TPM backend driver.
> >
> > *ARCHITECTURE*
> > The architecture of stubdom vTPM for HVM virtual machine:
> >
> > +--------------------+
> > | Windows/Linux DomU | ...
> > | | ^ |
> > | v | |
> > | Qemu tpm1.2 Tis |
> > | | ^ |
> > | v | |
> > | XenStubdoms backend|
> > +--------------------+
> > | ^
> > v |
> > +--------------------+
> > | XenDevOps |
> > +--------------------+
> > | ^
> > v |
> > +--------------------+
> > | mini-os/tpmback |
> > | | ^ |
> > | v | |
> > | vtpm-stubdom | ...
> > | | ^ |
> > | v | |
> > | mini-os/tpmfront |
> > +--------------------+
> > | ^
> > v |
> > +--------------------+
> > | mini-os/tpmback |
> > | | ^ |
> > | v | |
> > | vtpmmgr-stubdom |
> > | | ^ |
> > | v | |
> > | mini-os/tpm_tis |
> > +--------------------+
> > | ^
> > v |
> > +--------------------+
> > | Hardware TPM |
> > +--------------------+
> >
> > * Windows/Linux DomU:
> > The HVM based guest that wants to use a vTPM. There may be
> > more than one of these.
> >
> > * Qemu tpm1.2 Tis:
> > Implementation of the tpm1.2 Tis interface for HVM virtual
> > machines. It is Qemu emulation device.
> >
> > * vTPM xenstubdoms driver:
> > Qemu vTPM driver. This driver provides vtpm initialization
> > and sending data and commends to a para-virtualized vtpm
> > stubdom.
> >
> > * XenDevOps:
> > Register Xen stubdom vTPM frontend driver, and transfer any
> > request/repond between TPM xenstubdoms driver and Xen vTPM
> > stubdom. Facilitate communications between Xen vTPM stubdom
> > and vTPM xenstubdoms driver.
> >
> > * mini-os/tpmback:
> > Mini-os TPM backend driver. The Linux frontend driver connects
> > to this backend driver to facilitate communications between the
> > Linux DomU and its vTPM. This driver is also used by vtpmmgr
> > stubdom to communicate with vtpm-stubdom.
> >
> > * vtpm-stubdom:
> > A mini-os stub domain that implements a vTPM. There is a
> > one to one mapping between running vtpm-stubdom instances and
> > logical vtpms on the system. The vTPM Platform Configuration
> > Registers (PCRs) are all initialized to zero.
> >
> > * mini-os/tpmfront:
> > Mini-os TPM frontend driver. The vTPM mini-os domain vtpm
> > stubdom uses this driver to communicate with vtpmmgr-stubdom.
> > This driver could also be used separately to implement a mini-os
> > domain that wishes to use a vTPM of its own.
> >
> > * vtpmmgr-stubdom:
> > A mini-os domain that implements the vTPM manager. There is only
> > one vTPM manager and it should be running during the entire lifetime
> > of the machine. vtpmmgr domain securely stores encryption keys for
> > each of the vtpms and accesses to the hardware TPM to get the root of
> > trust for the entire system.
> >
> > * mini-os/tpm_tis:
> > Mini-os TPM version 1.2 TPM Interface Specification (TIS) driver.
> > This driver used by vtpmmgr-stubdom to talk directly to the hardware
> > TPM. Communication is facilitated by mapping hardware memory pages
> > into vtpmmgr stubdom.
> >
> > * Hardware TPM: The physical TPM 1.2 that is soldered onto the
> > motherboard.
> >
> > ---
> > Changes in v9
> > High level changes: (each patch has a detailed history versioning)
> > * rebase on upstream qemu
> > * refactor qemu xendevs, xenstore functions in order to be shared with both
> > backend and frontends
> > * convert tpm stubdoms to new qapi layout
> > * use libxengnttab, libxenevtchn stable API instead of xc_* calls
> > * added reset_tpm_established_flag and get_tpm_version for TPMDriverOps
> > * instead of xen_frontend.c global variable xenstore_dev, use vtpm specific
> > xenstore_vtpm_dev (since it will be needed just for tpm_xenstubdoms qemu
> > driver)
> >
> >
> > Emil Condrea (19):
> > xen: Create a new file xen_pvdev.c
> > xen: Create a new file xen_frontend.c
> > xen: Move xenstore_update to xen_pvdev.c
> > xen: Move evtchn functions to xen_pvdev.c
> > xen: Prepare xendev qtail to be shared with frontends
> > xen: Rename xen_be_printf to xen_pv_printf
> > xen: Rename xen_be_unbind_evtchn
> > xen: Rename xen_be_send_notify
> > xen: Rename xen_be_evtchn_event
> > xen: Rename xen_be_find_xendev
> > xen: Rename xen_be_del_xendev
> > xen: Rename xen_be_frontend_changed
> > xen: Distinguish between frontend and backend devops
> > Qemu-Xen-vTPM: Support for Xen stubdom vTPM command line options
> > Qemu-Xen-vTPM: Xen frontend driver infrastructure
> > Qemu-Xen-vTPM: Register Xen stubdom vTPM frontend driver
> > Qemu-Xen-vTPM: Move tpm_passthrough_is_selftest() into tpm_util.c
> > Qemu-Xen-vTPM: Qemu vTPM xenstubdoms backend
> > Qemu-Xen-vTPM: QEMU machine class is initialized before tpm_init()
> >
> > backends/tpm.c | 11 ++
> > configure | 14 ++
> > hmp.c | 2 +
> > hw/block/xen_disk.c | 59 +++---
> > hw/char/xen_console.c | 16 +-
> > hw/display/xenfb.c | 57 +++---
> > hw/net/xen_nic.c | 29 +--
> > hw/tpm/Makefile.objs | 3 +-
> > hw/tpm/tpm_passthrough.c | 13 +-
> > hw/tpm/tpm_util.c | 11 ++
> > hw/tpm/tpm_util.h | 1 +
> > hw/tpm/tpm_xenstubdoms.c | 284 ++++++++++++++++++++++++++
> > hw/tpm/xen_vtpm_frontend.c | 303 ++++++++++++++++++++++++++++
> > hw/tpm/xen_vtpm_frontend.h | 10 +
> > hw/usb/xen-usb.c | 38 ++--
> > hw/xen/Makefile.objs | 2 +-
> > hw/xen/xen_backend.c | 378 ++++-------------------------------
> > hw/xen/xen_devconfig.c | 4 +-
> > hw/xen/xen_frontend.c | 416
> > +++++++++++++++++++++++++++++++++++++++
> > hw/xen/xen_pvdev.c | 298 ++++++++++++++++++++++++++++
> > include/hw/xen/xen_backend.h | 71 +------
> > include/hw/xen/xen_frontend.h | 20 ++
> > include/hw/xen/xen_pvdev.h | 83 ++++++++
> > include/sysemu/tpm_backend_int.h | 2 +
> > qapi-schema.json | 16 +-
> > qemu-options.hx | 13 +-
> > tpm.c | 7 +-
> > vl.c | 17 +-
> > xen-common.c | 4 +-
> > xen-hvm.c | 6 +
> > 30 files changed, 1649 insertions(+), 539 deletions(-) create mode 100644
> > hw/tpm/tpm_xenstubdoms.c create mode 100644
> > hw/tpm/xen_vtpm_frontend.c create mode 100644
> > hw/tpm/xen_vtpm_frontend.h create mode 100644 hw/xen/xen_frontend.c
> > create mode 100644 hw/xen/xen_pvdev.c create mode 100644
> > include/hw/xen/xen_frontend.h create mode 100644
> > include/hw/xen/xen_pvdev.h
> >
> > --
> > 1.9.1
>
- [Qemu-devel] [PATCH 12/19] xen: Rename xen_be_frontend_changed, (continued)
- [Qemu-devel] [PATCH 12/19] xen: Rename xen_be_frontend_changed, Emil Condrea, 2016/07/10
- [Qemu-devel] [PATCH 11/19] xen: Rename xen_be_del_xendev, Emil Condrea, 2016/07/10
- [Qemu-devel] [PATCH 14/19] Qemu-Xen-vTPM: Support for Xen stubdom vTPM command line options, Emil Condrea, 2016/07/10
- [Qemu-devel] [PATCH 15/19] Qemu-Xen-vTPM: Xen frontend driver infrastructure, Emil Condrea, 2016/07/10
- [Qemu-devel] [PATCH 19/19] Qemu-Xen-vTPM: QEMU machine class is initialized before tpm_init(), Emil Condrea, 2016/07/10
- [Qemu-devel] [PATCH 17/19] Qemu-Xen-vTPM: Move tpm_passthrough_is_selftest() into tpm_util.c, Emil Condrea, 2016/07/10
- [Qemu-devel] [PATCH 16/19] Qemu-Xen-vTPM: Register Xen stubdom vTPM frontend driver, Emil Condrea, 2016/07/10
- [Qemu-devel] [PATCH 18/19] Qemu-Xen-vTPM: Qemu vTPM xenstubdoms backend, Emil Condrea, 2016/07/10
- Re: [Qemu-devel] [v9 00/19] QEMU:Xen stubdom vTPM for HVM virtual machine(QEMU Part), Xu, Quan, 2016/07/12
- Re: [Qemu-devel] [v9 00/19] QEMU:Xen stubdom vTPM for HVM virtual machine(QEMU Part), Anthony PERARD, 2016/07/25