Messages in this thread | | | Date | Fri, 24 Feb 2017 19:02:38 +0200 | From | Jarkko Sakkinen <> | Subject | Re: [PATCH v2 4/7] tpm: infrastructure for TPM spaces |
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On Fri, Feb 24, 2017 at 07:53:22AM -0500, James Bottomley wrote: > On Thu, 2017-02-16 at 21:25 +0200, Jarkko Sakkinen wrote: > > Added an ability to virtualize TPM commands into an isolated context > > that we call a TPM space because the word context is already heavily > > used in the TPM specification. Both the handle areas and bodies > > (where > > necessary) are virtualized. > > > > The mechanism works by adding a new parameter struct tpm_space to the > > tpm_transmit() function. This new structure contains the list of > > virtual > > handles and a buffer of page size (currently) for backing storage. > > > > When tpm_transmit() is called with a struct tpm_space instance it > > will > > execute the following sequence: > > > > 1. Take locks. > > 2. Load transient objects from the backing storage by using > > ContextLoad > > and map virtual handles to physical handles. > > 3. Perform the transaction. > > 4. Save transient objects to backing storage by using ContextSave and > > map resulting physical handle to virtual handle if there is such. > > > > This commit does not implement virtualization support for hmac and > > policy sessions. > > > > Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> > > For patches 1-4 you can add > > Reviewed-by: James Bottomley <James.Bottomley@HansenPartnership.com> > > Just re-running a build with the latest kernel for my laptop to add > tested by. > > James
Thank you!
/Jarkko
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