From: Jarkko Sakkinen <jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
To: Jiandi An <anjiandi-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
Cc: rafael.j.wysocki-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
robert.moore-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
lv.zheng-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
lenb-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
Subject: Re: [PATCH 1/3] ACPICA: Update TPM2 ACPI table
Date: Mon, 13 Mar 2017 13:43:35 +0200 [thread overview]
Message-ID: <20170313114335.jlm4tttbzaeqmryz@intel.com> (raw)
In-Reply-To: <58C4698B.3030601-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
On Sat, Mar 11, 2017 at 03:18:03PM -0600, Jiandi An wrote:
> On 03/11/17 02:19, Jarkko Sakkinen wrote:
> > On Fri, Mar 10, 2017 at 03:58:07AM -0600, Jiandi An wrote:
> > > TCG ACPI Specification Family "1.2" and "2.0" Version 1.2
> > > Revision 8 introduces new start method for ARM SMC.
> > >
> > > - Add new start method (type 11) for ARM SMC
> > > - Add start method specific parameters for ARM SMC start method
> > >
> > > Signed-off-by: Jiandi An <anjiandi-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
> >
> > Could you briefly describe what SMC is? I don't know
> >
> > 1. What the abbrevation stands for.
> SMC stands for Secure Monitor Call.
>
> > 2. What it is.
> In ARM, TrustZone security extensions ennable a Secure software
> environment with Secure Monitor mode. A Secure Monitor Call (SMC) is
> used to enter the Secure Monitor mode and perform a Secure Monitor
> service call. Software executing in the non-secure state and in the
> secure state at exception levels lower than EL3 in ARM will request
> runtime services using the Secure Monitor Call (SMC) instruction to
> enter EL3 secure mode.
>
> I'll include a brief description in commit message of patch as well
> in next version of the patch.
>
> Thanks.
> - Jiandi
Thank you. I got the idea but it still would be also good idea to
have this documented in the commit message so it's available in the
commit log if we need to backtrack something.
/Jarkko
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next prev parent reply other threads:[~2017-03-13 11:43 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-10 9:58 [PATCH 0/3] tpm/tpm_crb: Enable TPM CRB interface for ARM64 Jiandi An
[not found] ` <1489139889-14376-1-git-send-email-anjiandi-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-03-10 9:58 ` [PATCH 1/3] ACPICA: Update TPM2 ACPI table Jiandi An
[not found] ` <1489139889-14376-2-git-send-email-anjiandi-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-03-10 15:35 ` Moore, Robert
[not found] ` <94F2FBAB4432B54E8AACC7DFDE6C92E37E56A917-8oqHQFITsIHTXloPLtfHfbfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2017-03-10 18:10 ` Jiandi An
2017-03-11 8:19 ` Jarkko Sakkinen
[not found] ` <20170311081914.k5qrbfwmjfb3fa7e-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-03-11 21:18 ` Jiandi An
[not found] ` <58C4698B.3030601-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-03-13 11:43 ` Jarkko Sakkinen [this message]
2017-03-10 9:58 ` [PATCH 2/3] tpm: Add start method for ARM Secure Monitor Call Jiandi An
[not found] ` <1489139889-14376-3-git-send-email-anjiandi-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-03-10 17:00 ` Jason Gunthorpe
[not found] ` <20170310170017.GB22960-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-03-11 0:44 ` Jiandi An
2017-03-11 8:39 ` Jarkko Sakkinen
2017-03-10 9:58 ` [PATCH 3/3] tpm/tpm_crb: Enable TPM CRB interface for ARM64 Jiandi An
[not found] ` <1489139889-14376-4-git-send-email-anjiandi-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-03-10 17:01 ` Jason Gunthorpe
[not found] ` <20170310170113.GC22960-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-03-11 0:45 ` Jiandi An
2017-03-10 17:02 ` Jason Gunthorpe
[not found] ` <20170310170216.GD22960-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-03-10 19:50 ` Jiandi An
2017-03-11 8:42 ` Jarkko Sakkinen
2017-03-11 8:42 ` Jarkko Sakkinen
[not found] ` <20170311084244.shypuhzdtvppscye-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-03-11 20:40 ` Jiandi An
[not found] ` <58C460BE.2090109-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-03-13 11:42 ` Jarkko Sakkinen
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