* [Qemu-devel] [PATCH v3 0/5] QEMU:Xen stubdom vTPM for HVM virtual machine
@ 2014-12-30 23:02 Quan Xu
2015-01-19 17:22 ` Stefano Stabellini
2015-01-19 17:22 ` Stefano Stabellini
0 siblings, 2 replies; 8+ messages in thread
From: Quan Xu @ 2014-12-30 23:02 UTC (permalink / raw)
To: qemu-devel
Cc: Quan Xu, stefano.stabellini, armbru, lcapitulino, aliguori,
pbonzini, xen-devel
*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 v3:
-New xen_frontend.c file
-Adjust the format of command line options
-Move xenbus_switch_state() to xen_frontend.c
-Move xen_stubdom_be() to xenstore_fe_read_be_str()
-Move *_stubdom_*() to *_fe_*()
-Move xen_stubdom_vtpm.c to xen_vtpm_frontend.c
-Read Xen vTPM status via XenStore
-Call vtpm_send() and vtpm_recv() directly.
--Changes in v2:
-adding xen_fe_register() that handle any Xen PV frontend registration
-remove a private structure 'QEMUBH'
-change version number to 2.3 in qapi-schema.json
-move hw/xen/xen_stubdom_vtpm.c to hw/tpm/xen_stubdom_vtpm.c
Quan Xu (5):
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: Qemu vTPM xenstubdoms backen.
Qemu-Xen-vTPM: QEMU machine class is initialized before tpm_init()
configure | 14 ++
hmp.c | 7 +
hw/tpm/Makefile.objs | 1 +
hw/tpm/tpm_xenstubdoms.c | 245 ++++++++++++++++++++++++++++++++
hw/tpm/xen_vtpm_frontend.c | 264 +++++++++++++++++++++++++++++++++++
hw/xen/Makefile.objs | 2 +-
hw/xen/xen_backend.c | 45 +++++-
hw/xen/xen_frontend.c | 323 +++++++++++++++++++++++++++++++++++++++++++
include/hw/xen/xen_backend.h | 19 +++
include/hw/xen/xen_common.h | 6 +
qapi-schema.json | 19 ++-
qemu-options.hx | 13 +-
tpm.c | 7 +-
vl.c | 16 ++-
xen-hvm.c | 16 +++
15 files changed, 983 insertions(+), 14 deletions(-)
create mode 100644 hw/tpm/tpm_xenstubdoms.c
create mode 100644 hw/tpm/xen_vtpm_frontend.c
create mode 100644 hw/xen/xen_frontend.c
--
1.8.3.2
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [PATCH v3 0/5] QEMU:Xen stubdom vTPM for HVM virtual machine
2014-12-30 23:02 [Qemu-devel] [PATCH v3 0/5] QEMU:Xen stubdom vTPM for HVM virtual machine Quan Xu
@ 2015-01-19 17:22 ` Stefano Stabellini
2015-01-19 17:52 ` Stefano Stabellini
2015-01-19 17:52 ` Stefano Stabellini
2015-01-19 17:22 ` Stefano Stabellini
1 sibling, 2 replies; 8+ messages in thread
From: Stefano Stabellini @ 2015-01-19 17:22 UTC (permalink / raw)
To: Quan Xu
Cc: stefano.stabellini, qemu-devel, armbru, lcapitulino, aliguori,
pbonzini, xen-devel
Hi Quan,
thanks for the update: this version is much much better than the
previous one.
I am not familiar enough with QAPI, HMP and TPM to review the first and
the last patches though.
Cheers,
Stefano
On Tue, 30 Dec 2014, Quan Xu 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 v3:
> -New xen_frontend.c file
> -Adjust the format of command line options
> -Move xenbus_switch_state() to xen_frontend.c
> -Move xen_stubdom_be() to xenstore_fe_read_be_str()
> -Move *_stubdom_*() to *_fe_*()
> -Move xen_stubdom_vtpm.c to xen_vtpm_frontend.c
> -Read Xen vTPM status via XenStore
> -Call vtpm_send() and vtpm_recv() directly.
>
> --Changes in v2:
> -adding xen_fe_register() that handle any Xen PV frontend registration
> -remove a private structure 'QEMUBH'
> -change version number to 2.3 in qapi-schema.json
> -move hw/xen/xen_stubdom_vtpm.c to hw/tpm/xen_stubdom_vtpm.c
>
> Quan Xu (5):
> 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: Qemu vTPM xenstubdoms backen.
> Qemu-Xen-vTPM: QEMU machine class is initialized before tpm_init()
>
> configure | 14 ++
> hmp.c | 7 +
> hw/tpm/Makefile.objs | 1 +
> hw/tpm/tpm_xenstubdoms.c | 245 ++++++++++++++++++++++++++++++++
> hw/tpm/xen_vtpm_frontend.c | 264 +++++++++++++++++++++++++++++++++++
> hw/xen/Makefile.objs | 2 +-
> hw/xen/xen_backend.c | 45 +++++-
> hw/xen/xen_frontend.c | 323 +++++++++++++++++++++++++++++++++++++++++++
> include/hw/xen/xen_backend.h | 19 +++
> include/hw/xen/xen_common.h | 6 +
> qapi-schema.json | 19 ++-
> qemu-options.hx | 13 +-
> tpm.c | 7 +-
> vl.c | 16 ++-
> xen-hvm.c | 16 +++
> 15 files changed, 983 insertions(+), 14 deletions(-)
> create mode 100644 hw/tpm/tpm_xenstubdoms.c
> create mode 100644 hw/tpm/xen_vtpm_frontend.c
> create mode 100644 hw/xen/xen_frontend.c
>
> --
> 1.8.3.2
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v3 0/5] QEMU:Xen stubdom vTPM for HVM virtual machine
2014-12-30 23:02 [Qemu-devel] [PATCH v3 0/5] QEMU:Xen stubdom vTPM for HVM virtual machine Quan Xu
2015-01-19 17:22 ` Stefano Stabellini
@ 2015-01-19 17:22 ` Stefano Stabellini
1 sibling, 0 replies; 8+ messages in thread
From: Stefano Stabellini @ 2015-01-19 17:22 UTC (permalink / raw)
To: Quan Xu
Cc: stefano.stabellini, qemu-devel, armbru, lcapitulino, aliguori,
pbonzini, xen-devel, eblake
Hi Quan,
thanks for the update: this version is much much better than the
previous one.
I am not familiar enough with QAPI, HMP and TPM to review the first and
the last patches though.
Cheers,
Stefano
On Tue, 30 Dec 2014, Quan Xu 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 v3:
> -New xen_frontend.c file
> -Adjust the format of command line options
> -Move xenbus_switch_state() to xen_frontend.c
> -Move xen_stubdom_be() to xenstore_fe_read_be_str()
> -Move *_stubdom_*() to *_fe_*()
> -Move xen_stubdom_vtpm.c to xen_vtpm_frontend.c
> -Read Xen vTPM status via XenStore
> -Call vtpm_send() and vtpm_recv() directly.
>
> --Changes in v2:
> -adding xen_fe_register() that handle any Xen PV frontend registration
> -remove a private structure 'QEMUBH'
> -change version number to 2.3 in qapi-schema.json
> -move hw/xen/xen_stubdom_vtpm.c to hw/tpm/xen_stubdom_vtpm.c
>
> Quan Xu (5):
> 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: Qemu vTPM xenstubdoms backen.
> Qemu-Xen-vTPM: QEMU machine class is initialized before tpm_init()
>
> configure | 14 ++
> hmp.c | 7 +
> hw/tpm/Makefile.objs | 1 +
> hw/tpm/tpm_xenstubdoms.c | 245 ++++++++++++++++++++++++++++++++
> hw/tpm/xen_vtpm_frontend.c | 264 +++++++++++++++++++++++++++++++++++
> hw/xen/Makefile.objs | 2 +-
> hw/xen/xen_backend.c | 45 +++++-
> hw/xen/xen_frontend.c | 323 +++++++++++++++++++++++++++++++++++++++++++
> include/hw/xen/xen_backend.h | 19 +++
> include/hw/xen/xen_common.h | 6 +
> qapi-schema.json | 19 ++-
> qemu-options.hx | 13 +-
> tpm.c | 7 +-
> vl.c | 16 ++-
> xen-hvm.c | 16 +++
> 15 files changed, 983 insertions(+), 14 deletions(-)
> create mode 100644 hw/tpm/tpm_xenstubdoms.c
> create mode 100644 hw/tpm/xen_vtpm_frontend.c
> create mode 100644 hw/xen/xen_frontend.c
>
> --
> 1.8.3.2
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [PATCH v3 0/5] QEMU:Xen stubdom vTPM for HVM virtual machine
2015-01-19 17:22 ` Stefano Stabellini
@ 2015-01-19 17:52 ` Stefano Stabellini
2015-01-20 2:24 ` Xu, Quan
2015-01-20 2:24 ` Xu, Quan
2015-01-19 17:52 ` Stefano Stabellini
1 sibling, 2 replies; 8+ messages in thread
From: Stefano Stabellini @ 2015-01-19 17:52 UTC (permalink / raw)
To: Stefano Stabellini
Cc: aliguori, qemu-devel, armbru, lcapitulino, Quan Xu, pbonzini, xen-devel
On Mon, 19 Jan 2015, Stefano Stabellini wrote:
> Hi Quan,
> thanks for the update: this version is much much better than the
> previous one.
>
> I am not familiar enough with QAPI, HMP and TPM to review the first and
> the last patches though.
I meant the first and the fourth. The last one is fine.
> Cheers,
>
> Stefano
>
>
> On Tue, 30 Dec 2014, Quan Xu 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 v3:
> > -New xen_frontend.c file
> > -Adjust the format of command line options
> > -Move xenbus_switch_state() to xen_frontend.c
> > -Move xen_stubdom_be() to xenstore_fe_read_be_str()
> > -Move *_stubdom_*() to *_fe_*()
> > -Move xen_stubdom_vtpm.c to xen_vtpm_frontend.c
> > -Read Xen vTPM status via XenStore
> > -Call vtpm_send() and vtpm_recv() directly.
> >
> > --Changes in v2:
> > -adding xen_fe_register() that handle any Xen PV frontend registration
> > -remove a private structure 'QEMUBH'
> > -change version number to 2.3 in qapi-schema.json
> > -move hw/xen/xen_stubdom_vtpm.c to hw/tpm/xen_stubdom_vtpm.c
> >
> > Quan Xu (5):
> > 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: Qemu vTPM xenstubdoms backen.
> > Qemu-Xen-vTPM: QEMU machine class is initialized before tpm_init()
> >
> > configure | 14 ++
> > hmp.c | 7 +
> > hw/tpm/Makefile.objs | 1 +
> > hw/tpm/tpm_xenstubdoms.c | 245 ++++++++++++++++++++++++++++++++
> > hw/tpm/xen_vtpm_frontend.c | 264 +++++++++++++++++++++++++++++++++++
> > hw/xen/Makefile.objs | 2 +-
> > hw/xen/xen_backend.c | 45 +++++-
> > hw/xen/xen_frontend.c | 323 +++++++++++++++++++++++++++++++++++++++++++
> > include/hw/xen/xen_backend.h | 19 +++
> > include/hw/xen/xen_common.h | 6 +
> > qapi-schema.json | 19 ++-
> > qemu-options.hx | 13 +-
> > tpm.c | 7 +-
> > vl.c | 16 ++-
> > xen-hvm.c | 16 +++
> > 15 files changed, 983 insertions(+), 14 deletions(-)
> > create mode 100644 hw/tpm/tpm_xenstubdoms.c
> > create mode 100644 hw/tpm/xen_vtpm_frontend.c
> > create mode 100644 hw/xen/xen_frontend.c
> >
> > --
> > 1.8.3.2
> >
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v3 0/5] QEMU:Xen stubdom vTPM for HVM virtual machine
2015-01-19 17:22 ` Stefano Stabellini
2015-01-19 17:52 ` Stefano Stabellini
@ 2015-01-19 17:52 ` Stefano Stabellini
1 sibling, 0 replies; 8+ messages in thread
From: Stefano Stabellini @ 2015-01-19 17:52 UTC (permalink / raw)
To: Stefano Stabellini
Cc: aliguori, qemu-devel, armbru, lcapitulino, Quan Xu, pbonzini,
xen-devel, eblake
On Mon, 19 Jan 2015, Stefano Stabellini wrote:
> Hi Quan,
> thanks for the update: this version is much much better than the
> previous one.
>
> I am not familiar enough with QAPI, HMP and TPM to review the first and
> the last patches though.
I meant the first and the fourth. The last one is fine.
> Cheers,
>
> Stefano
>
>
> On Tue, 30 Dec 2014, Quan Xu 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 v3:
> > -New xen_frontend.c file
> > -Adjust the format of command line options
> > -Move xenbus_switch_state() to xen_frontend.c
> > -Move xen_stubdom_be() to xenstore_fe_read_be_str()
> > -Move *_stubdom_*() to *_fe_*()
> > -Move xen_stubdom_vtpm.c to xen_vtpm_frontend.c
> > -Read Xen vTPM status via XenStore
> > -Call vtpm_send() and vtpm_recv() directly.
> >
> > --Changes in v2:
> > -adding xen_fe_register() that handle any Xen PV frontend registration
> > -remove a private structure 'QEMUBH'
> > -change version number to 2.3 in qapi-schema.json
> > -move hw/xen/xen_stubdom_vtpm.c to hw/tpm/xen_stubdom_vtpm.c
> >
> > Quan Xu (5):
> > 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: Qemu vTPM xenstubdoms backen.
> > Qemu-Xen-vTPM: QEMU machine class is initialized before tpm_init()
> >
> > configure | 14 ++
> > hmp.c | 7 +
> > hw/tpm/Makefile.objs | 1 +
> > hw/tpm/tpm_xenstubdoms.c | 245 ++++++++++++++++++++++++++++++++
> > hw/tpm/xen_vtpm_frontend.c | 264 +++++++++++++++++++++++++++++++++++
> > hw/xen/Makefile.objs | 2 +-
> > hw/xen/xen_backend.c | 45 +++++-
> > hw/xen/xen_frontend.c | 323 +++++++++++++++++++++++++++++++++++++++++++
> > include/hw/xen/xen_backend.h | 19 +++
> > include/hw/xen/xen_common.h | 6 +
> > qapi-schema.json | 19 ++-
> > qemu-options.hx | 13 +-
> > tpm.c | 7 +-
> > vl.c | 16 ++-
> > xen-hvm.c | 16 +++
> > 15 files changed, 983 insertions(+), 14 deletions(-)
> > create mode 100644 hw/tpm/tpm_xenstubdoms.c
> > create mode 100644 hw/tpm/xen_vtpm_frontend.c
> > create mode 100644 hw/xen/xen_frontend.c
> >
> > --
> > 1.8.3.2
> >
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [PATCH v3 0/5] QEMU:Xen stubdom vTPM for HVM virtual machine
2015-01-19 17:52 ` Stefano Stabellini
@ 2015-01-20 2:24 ` Xu, Quan
2015-01-20 2:24 ` Xu, Quan
1 sibling, 0 replies; 8+ messages in thread
From: Xu, Quan @ 2015-01-20 2:24 UTC (permalink / raw)
To: Stefano Stabellini
Cc: Stefan Berger, qemu-devel, armbru, lcapitulino, aliguori,
pbonzini, xen-devel
> -----Original Message-----
> From: Stefano Stabellini [mailto:stefano.stabellini@eu.citrix.com]
> Sent: Tuesday, January 20, 2015 1:53 AM
> To: Stefano Stabellini
> Cc: Xu, Quan; qemu-devel@nongnu.org; xen-devel@lists.xen.org;
> lcapitulino@redhat.com; eblake@redhat.com; armbru@redhat.com;
> aliguori@amazon.com; pbonzini@redhat.com
> Subject: Re: [PATCH v3 0/5] QEMU:Xen stubdom vTPM for HVM virtual machine
>
> On Mon, 19 Jan 2015, Stefano Stabellini wrote:
> > Hi Quan,
> > thanks for the update: this version is much much better than the
> > previous one.
> >
> > I am not familiar enough with QAPI, HMP and TPM to review the first
> > and the last patches though.
>
> I meant the first and the fourth. The last one is fine.
>
Stefano,
Thanks, I appreciate your help. I will send out v4 ASAP.
BTW, the XenStore will be modified as previous emails, which is mentioned and fed back
>From Xen community.
For example:
Domain 0: runs QEMU for guest A
Domain 1: vtpmmgr
Domain 2: vTPM for guest A
Domain 3: HVM guest A
I will design XenStore as following:
## XenStore >> ###
local = ""
domain = ""
0 = ""
frontend = ""
vtpm = ""
2 = ""
0 = ""
backend = "/local/domain/2/backend/vtpm/0/0"
backend-id = "2"
state = "*"
handle = "0"
domain = "Domain3's name"
ring-ref = "*"
event-channel = "*"
feature-protocol-v2 = "1"
backend = ""
qdisk = ""
[...]
console = ""
vif = ""
[...]
2 = ""
[...]
backend = ""
vtpm = ""
0 = ""
0 = ""
frontend = "/local/domain/0/frontend/vtpm/2/0"
frontend-id = "0" ('0', frontend is running in Domain-0)
[...]
3 = ""
[...]
device = "" (frontend device, the backend is running in QEMU/.etc)
vkbd = ""
[...]
vif = ""
[...]
## XenStore << ##
Add [domain = "Domain3's name"] under /local/domain/0/frontend/vtpm/2/0.
Then, 'xs_directory()' can help to find out which domain is the backend. It can be of low efficiency.
-Quan
>
> > Cheers,
> >
> > Stefano
> >
> >
> > On Tue, 30 Dec 2014, Quan Xu 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 v3:
> > > -New xen_frontend.c file
> > > -Adjust the format of command line options
> > > -Move xenbus_switch_state() to xen_frontend.c
> > > -Move xen_stubdom_be() to xenstore_fe_read_be_str()
> > > -Move *_stubdom_*() to *_fe_*()
> > > -Move xen_stubdom_vtpm.c to xen_vtpm_frontend.c
> > > -Read Xen vTPM status via XenStore
> > > -Call vtpm_send() and vtpm_recv() directly.
> > >
> > > --Changes in v2:
> > > -adding xen_fe_register() that handle any Xen PV frontend registration
> > > -remove a private structure 'QEMUBH'
> > > -change version number to 2.3 in qapi-schema.json
> > > -move hw/xen/xen_stubdom_vtpm.c to
> hw/tpm/xen_stubdom_vtpm.c
> > >
> > > Quan Xu (5):
> > > 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: Qemu vTPM xenstubdoms backen.
> > > Qemu-Xen-vTPM: QEMU machine class is initialized before tpm_init()
> > >
> > > configure | 14 ++
> > > hmp.c | 7 +
> > > hw/tpm/Makefile.objs | 1 +
> > > hw/tpm/tpm_xenstubdoms.c | 245
> ++++++++++++++++++++++++++++++++
> > > hw/tpm/xen_vtpm_frontend.c | 264
> +++++++++++++++++++++++++++++++++++
> > > hw/xen/Makefile.objs | 2 +-
> > > hw/xen/xen_backend.c | 45 +++++-
> > > hw/xen/xen_frontend.c | 323
> +++++++++++++++++++++++++++++++++++++++++++
> > > include/hw/xen/xen_backend.h | 19 +++
> > > include/hw/xen/xen_common.h | 6 +
> > > qapi-schema.json | 19 ++-
> > > qemu-options.hx | 13 +-
> > > tpm.c | 7 +-
> > > vl.c | 16 ++-
> > > xen-hvm.c | 16 +++
> > > 15 files changed, 983 insertions(+), 14 deletions(-) create mode
> > > 100644 hw/tpm/tpm_xenstubdoms.c create mode 100644
> > > hw/tpm/xen_vtpm_frontend.c create mode 100644
> hw/xen/xen_frontend.c
> > >
> > > --
> > > 1.8.3.2
> > >
> >
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v3 0/5] QEMU:Xen stubdom vTPM for HVM virtual machine
2015-01-19 17:52 ` Stefano Stabellini
2015-01-20 2:24 ` Xu, Quan
@ 2015-01-20 2:24 ` Xu, Quan
1 sibling, 0 replies; 8+ messages in thread
From: Xu, Quan @ 2015-01-20 2:24 UTC (permalink / raw)
To: Stefano Stabellini
Cc: Stefan Berger, qemu-devel, armbru, lcapitulino, aliguori,
pbonzini, xen-devel, eblake
> -----Original Message-----
> From: Stefano Stabellini [mailto:stefano.stabellini@eu.citrix.com]
> Sent: Tuesday, January 20, 2015 1:53 AM
> To: Stefano Stabellini
> Cc: Xu, Quan; qemu-devel@nongnu.org; xen-devel@lists.xen.org;
> lcapitulino@redhat.com; eblake@redhat.com; armbru@redhat.com;
> aliguori@amazon.com; pbonzini@redhat.com
> Subject: Re: [PATCH v3 0/5] QEMU:Xen stubdom vTPM for HVM virtual machine
>
> On Mon, 19 Jan 2015, Stefano Stabellini wrote:
> > Hi Quan,
> > thanks for the update: this version is much much better than the
> > previous one.
> >
> > I am not familiar enough with QAPI, HMP and TPM to review the first
> > and the last patches though.
>
> I meant the first and the fourth. The last one is fine.
>
Stefano,
Thanks, I appreciate your help. I will send out v4 ASAP.
BTW, the XenStore will be modified as previous emails, which is mentioned and fed back
>From Xen community.
For example:
Domain 0: runs QEMU for guest A
Domain 1: vtpmmgr
Domain 2: vTPM for guest A
Domain 3: HVM guest A
I will design XenStore as following:
## XenStore >> ###
local = ""
domain = ""
0 = ""
frontend = ""
vtpm = ""
2 = ""
0 = ""
backend = "/local/domain/2/backend/vtpm/0/0"
backend-id = "2"
state = "*"
handle = "0"
domain = "Domain3's name"
ring-ref = "*"
event-channel = "*"
feature-protocol-v2 = "1"
backend = ""
qdisk = ""
[...]
console = ""
vif = ""
[...]
2 = ""
[...]
backend = ""
vtpm = ""
0 = ""
0 = ""
frontend = "/local/domain/0/frontend/vtpm/2/0"
frontend-id = "0" ('0', frontend is running in Domain-0)
[...]
3 = ""
[...]
device = "" (frontend device, the backend is running in QEMU/.etc)
vkbd = ""
[...]
vif = ""
[...]
## XenStore << ##
Add [domain = "Domain3's name"] under /local/domain/0/frontend/vtpm/2/0.
Then, 'xs_directory()' can help to find out which domain is the backend. It can be of low efficiency.
-Quan
>
> > Cheers,
> >
> > Stefano
> >
> >
> > On Tue, 30 Dec 2014, Quan Xu 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 v3:
> > > -New xen_frontend.c file
> > > -Adjust the format of command line options
> > > -Move xenbus_switch_state() to xen_frontend.c
> > > -Move xen_stubdom_be() to xenstore_fe_read_be_str()
> > > -Move *_stubdom_*() to *_fe_*()
> > > -Move xen_stubdom_vtpm.c to xen_vtpm_frontend.c
> > > -Read Xen vTPM status via XenStore
> > > -Call vtpm_send() and vtpm_recv() directly.
> > >
> > > --Changes in v2:
> > > -adding xen_fe_register() that handle any Xen PV frontend registration
> > > -remove a private structure 'QEMUBH'
> > > -change version number to 2.3 in qapi-schema.json
> > > -move hw/xen/xen_stubdom_vtpm.c to
> hw/tpm/xen_stubdom_vtpm.c
> > >
> > > Quan Xu (5):
> > > 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: Qemu vTPM xenstubdoms backen.
> > > Qemu-Xen-vTPM: QEMU machine class is initialized before tpm_init()
> > >
> > > configure | 14 ++
> > > hmp.c | 7 +
> > > hw/tpm/Makefile.objs | 1 +
> > > hw/tpm/tpm_xenstubdoms.c | 245
> ++++++++++++++++++++++++++++++++
> > > hw/tpm/xen_vtpm_frontend.c | 264
> +++++++++++++++++++++++++++++++++++
> > > hw/xen/Makefile.objs | 2 +-
> > > hw/xen/xen_backend.c | 45 +++++-
> > > hw/xen/xen_frontend.c | 323
> +++++++++++++++++++++++++++++++++++++++++++
> > > include/hw/xen/xen_backend.h | 19 +++
> > > include/hw/xen/xen_common.h | 6 +
> > > qapi-schema.json | 19 ++-
> > > qemu-options.hx | 13 +-
> > > tpm.c | 7 +-
> > > vl.c | 16 ++-
> > > xen-hvm.c | 16 +++
> > > 15 files changed, 983 insertions(+), 14 deletions(-) create mode
> > > 100644 hw/tpm/tpm_xenstubdoms.c create mode 100644
> > > hw/tpm/xen_vtpm_frontend.c create mode 100644
> hw/xen/xen_frontend.c
> > >
> > > --
> > > 1.8.3.2
> > >
> >
^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH v3 0/5] QEMU:Xen stubdom vTPM for HVM virtual machine
@ 2014-12-30 23:02 Quan Xu
0 siblings, 0 replies; 8+ messages in thread
From: Quan Xu @ 2014-12-30 23:02 UTC (permalink / raw)
To: qemu-devel
Cc: Quan Xu, stefano.stabellini, armbru, lcapitulino, aliguori,
pbonzini, xen-devel, eblake
*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 v3:
-New xen_frontend.c file
-Adjust the format of command line options
-Move xenbus_switch_state() to xen_frontend.c
-Move xen_stubdom_be() to xenstore_fe_read_be_str()
-Move *_stubdom_*() to *_fe_*()
-Move xen_stubdom_vtpm.c to xen_vtpm_frontend.c
-Read Xen vTPM status via XenStore
-Call vtpm_send() and vtpm_recv() directly.
--Changes in v2:
-adding xen_fe_register() that handle any Xen PV frontend registration
-remove a private structure 'QEMUBH'
-change version number to 2.3 in qapi-schema.json
-move hw/xen/xen_stubdom_vtpm.c to hw/tpm/xen_stubdom_vtpm.c
Quan Xu (5):
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: Qemu vTPM xenstubdoms backen.
Qemu-Xen-vTPM: QEMU machine class is initialized before tpm_init()
configure | 14 ++
hmp.c | 7 +
hw/tpm/Makefile.objs | 1 +
hw/tpm/tpm_xenstubdoms.c | 245 ++++++++++++++++++++++++++++++++
hw/tpm/xen_vtpm_frontend.c | 264 +++++++++++++++++++++++++++++++++++
hw/xen/Makefile.objs | 2 +-
hw/xen/xen_backend.c | 45 +++++-
hw/xen/xen_frontend.c | 323 +++++++++++++++++++++++++++++++++++++++++++
include/hw/xen/xen_backend.h | 19 +++
include/hw/xen/xen_common.h | 6 +
qapi-schema.json | 19 ++-
qemu-options.hx | 13 +-
tpm.c | 7 +-
vl.c | 16 ++-
xen-hvm.c | 16 +++
15 files changed, 983 insertions(+), 14 deletions(-)
create mode 100644 hw/tpm/tpm_xenstubdoms.c
create mode 100644 hw/tpm/xen_vtpm_frontend.c
create mode 100644 hw/xen/xen_frontend.c
--
1.8.3.2
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2015-01-20 2:24 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-12-30 23:02 [Qemu-devel] [PATCH v3 0/5] QEMU:Xen stubdom vTPM for HVM virtual machine Quan Xu
2015-01-19 17:22 ` Stefano Stabellini
2015-01-19 17:52 ` Stefano Stabellini
2015-01-20 2:24 ` Xu, Quan
2015-01-20 2:24 ` Xu, Quan
2015-01-19 17:52 ` Stefano Stabellini
2015-01-19 17:22 ` Stefano Stabellini
2014-12-30 23:02 Quan Xu
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