tree 8df7e18dae2aa07606db1673fcd2212825a286ee
parent 71cd90f7624e0672ab7c419f5a76a547594c98c5
author Prabhu Kaliamoorthi <kaliamoorthi@chromium.org> 1396266910 +0200
committer Mattias Nissler <mnissler@chromium.org> 1397637995 +0000

Removes the need for additional reboot in Lucas

This CL is a fix for the Issue 273264.

An enumeration of the state table is provided below.

TPM     OK      IA     Behaviour
Clear   Exists  Exists  Not possible, since OK is in statefull partition which cannot be accessed when TPM is cleared.
Clear   !Exists Exists  Reenrollment scenario -> serial key created
Clear   !Exists !Exists Enrollment scenario   -> serial key created
Clear   Exists  !Exists Not possible, since OK is in statefull partition which cannot be accessed when TPM is cleared.
!Clear  Exists  Exists  Regular use scenario -> serial key not created
!Clear  !Exists Exists  Reenrollment scenario -> serial key created
!Clear  Exists  !Exists Not Possible, OK only gets created after we take TPM ownership, which creates IA
!Clear  !Exists !Exists Reenrollment scenario -> serial key created

BUG=chromium:273264
TEST=Verified the change on Lucas

Change-Id: I7e59adbf9b50971caba527958f5d59cb64df8cd9
Previous-Reviewed-on: https://chromium-review.googlesource.com/192300
(cherry picked from commit 27be61c39d986e551782671df7670bca1653aecb)
Reviewed-on: https://chromium-review.googlesource.com/195130
Reviewed-by: Mattias Nissler <mnissler@chromium.org>
Commit-Queue: Mattias Nissler <mnissler@chromium.org>
Tested-by: Mattias Nissler <mnissler@chromium.org>