From mboxrd@z Thu Jan  1 00:00:00 1970
From: Markus Armbruster <armbru@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v6 17/23] qapi: add SEV_MEASUREMENT event
Date: Wed, 31 Jan 2018 18:45:01 +0100
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References: <20180129174132.108925-1-brijesh.singh@amd.com>
        <20180129174132.108925-18-brijesh.singh@amd.com>
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Cc: qemu-devel@nongnu.org,
        "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>,
        Peter Maydell <peter.maydell@linaro.org>,
        Eduardo Habkost <ehabkost@redhat.com>, kvm@vger.kernel.org,
        Tom Lendacky <Thomas.Lendacky@amd.com>,
        Stefan Hajnoczi <stefanha@gmail.com>,
        "Michael S. Tsirkin" <mst@redhat.com>,
        Richard Henderson <richard.henderson@linaro.org>,
        "Dr. David Alan Gilbert" <dgilbert@redhat.com>,
        Paolo Bonzini <pbonzini@redhat.com>
To: Brijesh Singh <brijesh.singh@amd.com>
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In-Reply-To: <20180129174132.108925-18-brijesh.singh@amd.com> (Brijesh Singh's
        message of "Mon, 29 Jan 2018 11:41:26 -0600")
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Brijesh Singh <brijesh.singh@amd.com> writes:

> Add SEV_MEASUREMENT event which can be used by libvirt to get the
> measurement of the memory regions encrypted through the SEV launch
> flow. The measurement value is base64 encoded.
>
> Cc: Daniel P. Berrange <berrange@redhat.com>
> Cc: Eric Blake <eblake@redhat.com>
> Cc: Markus Armbruster <armbru@redhat.com>
> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
> ---
>  qapi-schema.json | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
>
> diff --git a/qapi-schema.json b/qapi-schema.json
> index 2046c96669bf..e1f5d14e2e3f 100644
> --- a/qapi-schema.json
> +++ b/qapi-schema.json
> @@ -3192,3 +3192,16 @@
>  # Since: 2.11
>  ##
>  { 'command': 'watchdog-set-action', 'data' : {'action': 'WatchdogAction'} }
> +
> +##
> +# @SEV_MEASUREMENT:
> +#
> +# Emitted when measurement is available for the SEV guest.
> +#
> +# @value: measurement value encoded in base64
> +#
> +# Since: 2.12
> +#
> +##
> +{ 'event' : 'SEV_MEASUREMENT',
> +  'data' : { 'value' : 'str' } }

New event -> automatic question: do we need a way to poll for this
information?  Say when an event could get lost during a libvirt restart.