Re: [Xen-devel] [PATCH v2 2/2] vtpmmgr: execute deep quote in locality 0

[Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>]

On 04/14/2015 05:08 AM, Emil Condrea wrote:
> Enables deep quote execution for vtpmmgr which can not be started
> using locality 2. Flags are used to request additional data to be
> present when executing quote. They are interpreted as a bitmask of:
>   * VTPM_QUOTE_FLAGS_HASH_UUID
>   * VTPM_QUOTE_FLAGS_VTPM_MEASUREMENTS
>   * VTPM_QUOTE_FLAGS_GROUP_INFO
>   * VTPM_QUOTE_FLAGS_GROUP_PUBKEY
>
> The externData param for TPM_Quote is calculated as:
> externData = SHA1 (
>         extraInfoFlags
>         requestData
>         [SHA1 (
>            [SHA1 (UUIDs if requested)]
>            [SHA1 (vTPM measurements if requested)]
>            [SHA1 (vTPM group update policy if requested)]
>            [SHA1 (vTPM group public key if requested)]
>         ) if flags !=0 ]
> )
>
> The response param pcrValues is an array containing requested hashes used
> for externData calculation : UUIDs, vTPM measurements, vTPM group update
> policy, group public key. At the end of these hashes the PCR values are
> appended.
>
> Signed-off-by: Emil Condrea <emilcondrea@xxxxxxxxx>
Acked-by: Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>

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