Re: [PATCH v8 08/10] tpm: Proxy driver for supporting multiple emulated TPMs

2016-03-19 Thread Jarkko Sakkinen
On Sun, Mar 13, 2016 at 06:54:38PM -0400, Stefan Berger wrote: > This patch implements a proxy driver for supporting multiple emulated TPMs > in a system. > > The driver implements a device /dev/vtpmx that is used to created > a client device pair /dev/tpmX (e.g., /dev/tpm10) and a server side tha

Re: [PATCH v8 08/10] tpm: Proxy driver for supporting multiple emulated TPMs

2016-03-19 Thread Jarkko Sakkinen
On Sun, Mar 13, 2016 at 06:54:38PM -0400, Stefan Berger wrote: > This patch implements a proxy driver for supporting multiple emulated TPMs > in a system. > > The driver implements a device /dev/vtpmx that is used to created > a client device pair /dev/tpmX (e.g., /dev/tpm10) and a server side tha

Re: [PATCH v8 08/10] tpm: Proxy driver for supporting multiple emulated TPMs

2016-03-19 Thread Jason Gunthorpe
On Wed, Mar 16, 2016 at 02:09:16PM +0200, Jarkko Sakkinen wrote: > On Sun, Mar 13, 2016 at 06:54:38PM -0400, Stefan Berger wrote: > Alternative to this would be to have /dev/vtpmx create: > > * /dev/vtpm0 for the server > * /dev/tpm0 for the client > > This is how David Howell's PoC worked and t

Re: [PATCH v8 08/10] tpm: Proxy driver for supporting multiple emulated TPMs

2016-03-19 Thread Stefan Berger
On 03/16/2016 04:42 PM, Jarkko Sakkinen wrote: On Sun, Mar 13, 2016 at 06:54:38PM -0400, Stefan Berger wrote: + +/* above flags */ +#define VTPM_PROXY_FLAG_TPM2 1 /* emulator is TPM 2 */ + +/* all supported flags */ +#define VTPM_PROXY_FLAGS_ALL (VTPM_PROXY_FLAG_TPM2) This can be moved insid

Re: [PATCH v8 08/10] tpm: Proxy driver for supporting multiple emulated TPMs

2016-03-19 Thread Stefan Berger
On 03/16/2016 08:09 AM, Jarkko Sakkinen wrote: On Sun, Mar 13, 2016 at 06:54:38PM -0400, Stefan Berger wrote: This patch implements a proxy driver for supporting multiple emulated TPMs in a system. The driver implements a device /dev/vtpmx that is used to created a client device pair /dev/tpmX

Re: [PATCH v8 08/10] tpm: Proxy driver for supporting multiple emulated TPMs

2016-03-19 Thread Jarkko Sakkinen
On Thu, Mar 17, 2016 at 01:45:20PM -0400, Stefan Berger wrote: > On 03/16/2016 04:42 PM, Jarkko Sakkinen wrote: > >On Sun, Mar 13, 2016 at 06:54:38PM -0400, Stefan Berger wrote: > >>+ > >>+/* above flags */ > >>+#define VTPM_PROXY_FLAG_TPM2 1 /* emulator is TPM 2 */ > >>+ > >>+/* all supported fl

Re: [PATCH v8 08/10] tpm: Proxy driver for supporting multiple emulated TPMs

2016-03-19 Thread Jarkko Sakkinen
On Wed, Mar 16, 2016 at 11:49:04AM -0600, Jason Gunthorpe wrote: > On Wed, Mar 16, 2016 at 02:09:16PM +0200, Jarkko Sakkinen wrote: > > On Sun, Mar 13, 2016 at 06:54:38PM -0400, Stefan Berger wrote: > > > Alternative to this would be to have /dev/vtpmx create: > > > > * /dev/vtpm0 for the server

Re: [PATCH v8 08/10] tpm: Proxy driver for supporting multiple emulated TPMs

2016-03-18 Thread Jarkko Sakkinen
On Fri, Mar 18, 2016 at 10:52:00AM +0200, Jarkko Sakkinen wrote: > On Thu, Mar 17, 2016 at 01:45:20PM -0400, Stefan Berger wrote: > > On 03/16/2016 04:42 PM, Jarkko Sakkinen wrote: > > >On Sun, Mar 13, 2016 at 06:54:38PM -0400, Stefan Berger wrote: > > >>+ > > >>+/* above flags */ > > >>+#define VT

Re: [PATCH v8 08/10] tpm: Proxy driver for supporting multiple emulated TPMs

2016-03-14 Thread Jarkko Sakkinen
On Sun, Mar 13, 2016 at 06:54:38PM -0400, Stefan Berger wrote: > This patch implements a proxy driver for supporting multiple emulated TPMs > in a system. > > The driver implements a device /dev/vtpmx that is used to created > a client device pair /dev/tpmX (e.g., /dev/tpm10) and a server side tha

[PATCH v8 08/10] tpm: Proxy driver for supporting multiple emulated TPMs

2016-03-13 Thread Stefan Berger
This patch implements a proxy driver for supporting multiple emulated TPMs in a system. The driver implements a device /dev/vtpmx that is used to created a client device pair /dev/tpmX (e.g., /dev/tpm10) and a server side that is accessed using a file descriptor returned by an ioctl. The device /d