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Measure MRC cache into separate PCR #150

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osresearch opened this issue Apr 1, 2017 · 3 comments
Closed

Measure MRC cache into separate PCR #150

osresearch opened this issue Apr 1, 2017 · 3 comments

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@osresearch
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@osresearch osresearch commented Apr 1, 2017

The MRC cache is measured into the RAM stage PCR, which pollutes the otherwise deterministic value. It should go into its own PCR (which should be documented in issue #146 )

@osresearch osresearch added this to the measuredboot milestone Apr 1, 2017
@osresearch
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@osresearch osresearch commented Apr 2, 2017

This also requires two reboots to properly initialize the MRC and the TPM PCR; the PCR should be updated after the MRC is written to avoid this problem.

@tlaurion
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@tlaurion tlaurion commented Apr 29, 2019

@tlaurion tlaurion mentioned this issue Oct 14, 2019
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@tlaurion
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@tlaurion tlaurion commented Aug 1, 2020

#721 related and will probably be measured in same PCR following coreboot way of measuring firmware

@tlaurion tlaurion closed this Aug 1, 2020
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