[edk2-devel] [Patch v2 1/3] SecurityPkg/SecurityPkg.dec: Change default value.

Yao, Jiewen jiewen.yao at intel.com
Thu May 9 21:48:14 UTC 2019


Thanks Laszlo.
Sorry, I do not mean to ask you.
The question is for the original patch submitter.
I just reply the last email in my mail box.

I agree with you that the title should describe *what* code does.
At same time, I prefer to see the commit message on *why* we need do the change.

Thank you
Yao Jiewen


> -----Original Message-----
> From: Laszlo Ersek [mailto:lersek at redhat.com]
> Sent: Thursday, May 9, 2019 2:27 PM
> To: Yao, Jiewen <jiewen.yao at intel.com>; devel at edk2.groups.io; Dong, Eric
> <eric.dong at intel.com>
> Cc: Wu, Hao A <hao.a.wu at intel.com>
> Subject: Re: [edk2-devel] [Patch v2 1/3] SecurityPkg/SecurityPkg.dec:
> Change default value.
> 
> Hi Jiewen,
> 
> On 05/09/19 14:41, Yao, Jiewen wrote:
> > Hey
> > When I read https://bugzilla.tianocore.org/show_bug.cgi?id=1782, it says:
> "Current opal driver send blockSid command at ReadyToBoot event, it
> should been update to EndOfDxe point. Submit this bz to update the code."
> >
> > But this patch is to update the default value.
> >
> > I am very confused.
> >
> > May I know what is the relationship between this patch and Bugzilla?
> > Why we need change the default value?
> 
> I have absolutely no clue -- I only commented because I prefer a patch
> subject to state *specifically* what a patch does. "Change default
> value" was too vague. (When I commented I hadn't seen Hao Wu's similar
> feedback just yet.)
> 
> Now, *why* this change is necessary, is totally over my head; I didn't
> even begin to think about that.
> 
> Thanks
> Laszlo
> 
> >
> >
> > Thank you
> > Yao Jiewen
> >
> >
> >> -----Original Message-----
> >> From: devel at edk2.groups.io [mailto:devel at edk2.groups.io] On Behalf
> Of
> >> Laszlo Ersek
> >> Sent: Thursday, May 9, 2019 2:53 AM
> >> To: devel at edk2.groups.io; Dong, Eric <eric.dong at intel.com>
> >> Cc: Wu, Hao A <hao.a.wu at intel.com>
> >> Subject: Re: [edk2-devel] [Patch v2 1/3] SecurityPkg/SecurityPkg.dec:
> >> Change default value.
> >>
> >> On 05/08/19 05:01, Dong, Eric wrote:
> >>> https://bugzilla.tianocore.org/show_bug.cgi?id=1782
> >>>
> >>> Change BlockSID default policy, default enable BlockSid.
> >>>
> >>> Signed-off-by: Eric Dong <eric.dong at intel.com>
> >>> Cc: Hao Wu <hao.a.wu at intel.com>
> >>> ---
> >>>  SecurityPkg/Include/Library/Tcg2PhysicalPresenceLib.h | 3 ++-
> >>>  SecurityPkg/SecurityPkg.dec                           | 2 +-
> >>>  2 files changed, 3 insertions(+), 2 deletions(-)
> >>
> >> Please change the subject line as follows:
> >>
> >> ----
> >> SecurityPkg: enable BlockSID in PcdTcg2PhysicalPresenceFlags DEC
> default
> >> ----
> >>
> >> no need to resubmit just for this, just pls update the patch before you
> >> push it.
> >>
> >> Thanks
> >> Laszlo
> >>
> >>> diff --git a/SecurityPkg/Include/Library/Tcg2PhysicalPresenceLib.h
> >> b/SecurityPkg/Include/Library/Tcg2PhysicalPresenceLib.h
> >>> index d9eee7f3e8..8da3deaf86 100644
> >>> --- a/SecurityPkg/Include/Library/Tcg2PhysicalPresenceLib.h
> >>> +++ b/SecurityPkg/Include/Library/Tcg2PhysicalPresenceLib.h
> >>> @@ -51,7 +51,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
> >>>  // Default value
> >>>  //
> >>>  #define TCG2_BIOS_STORAGE_MANAGEMENT_FLAG_DEFAULT
> >>
> (TCG2_BIOS_STORAGE_MANAGEMENT_FLAG_PP_REQUIRED_FOR_ENABLE
> >> _BLOCK_SID | \
> >>> -
> >>
> TCG2_BIOS_STORAGE_MANAGEMENT_FLAG_PP_REQUIRED_FOR_DISABLE_
> >> BLOCK_SID)
> >>> +
> >>
> TCG2_BIOS_STORAGE_MANAGEMENT_FLAG_PP_REQUIRED_FOR_DISABLE_
> >> BLOCK_SID |\
> >>> +
> >> TCG2_BIOS_STORAGE_MANAGEMENT_FLAG_ENABLE_BLOCK_SID)
> >>>
> >>>  /**
> >>>    Check and execute the pending TPM request.
> >>> diff --git a/SecurityPkg/SecurityPkg.dec b/SecurityPkg/SecurityPkg.dec
> >>> index 6e4c4c3a02..3314f1854b 100644
> >>> --- a/SecurityPkg/SecurityPkg.dec
> >>> +++ b/SecurityPkg/SecurityPkg.dec
> >>> @@ -410,7 +410,7 @@
> >>>    # PCD can be configured for different settings in different scenarios
> >>>    # Default setting is
> TCG2_BIOS_TPM_MANAGEMENT_FLAG_DEFAULT
> >> | TCG2_BIOS_STORAGE_MANAGEMENT_FLAG_DEFAULT
> >>>    # @Prompt Initial setting of TCG2 Persistent Firmware Management
> >> Flags
> >>> -
> >>
> gEfiSecurityPkgTokenSpaceGuid.PcdTcg2PhysicalPresenceFlags|0x300E2|UI
> >> NT32|0x0001001B
> >>> +
> >>
> gEfiSecurityPkgTokenSpaceGuid.PcdTcg2PhysicalPresenceFlags|0x700E2|UI
> >> NT32|0x0001001B
> >>>
> >>>    ## Indicate current TPM2 Interrupt Number reported by _CRS
> control
> >> method.<BR><BR>
> >>>    # TPM2 Interrupt feature is disabled If the pcd is set to 0.<BR>
> >>>
> >>
> >>
> >> 
> >


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