Xen devel - Oct 2006 - [PATCH] Remove variable buffer size and partial reads from tpm.c

I am removing the experimental feature that allows buffer sizes for
transfers from TPMs larger than 2kb. This could become useful if a vTPM
is located in its owns domain and needs to be serialized for suspension
or migration and the packet size becomes bigger than the current limit.
Partial reads were supposed to complement this feature for applications
to know how many bytes to read from /dev/tpm0.
The TSS stack that uses /dev/tpm0 does not rely on any of these changes
and continues to work. 
This makes the file equivalent to the one in 2.6.17.

Signed-off-by: Stefan Berger <stefanb@us.ibm.com>




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