Add support for MM communicate2 protocol (PI 1.7a)

[edk2-devel] [PATCH resend 0/7] Add support for MM communicate2 protocol (PI 1.7a)

Posted by Ard Biesheuvel 3 years, 11 months ago

Now that version 1.7 errata A of the PI spec has finally been released,
we can take another look at this series, which incorporates the new MM
communicate2 protocol definition, updates the producers for conventional
SMM and standalone MM, and updates the variable store components to consume
the new version of the protocol. This solves a long standing compatibility
issue which made standalone MM fundamentally incompatible with a virtually
remapped address space as installed by SetVirtualAddressMap().

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>

Ard Biesheuvel (7):
  MdePkg: introduce MM communicate 2 protocol
  MdeModulePkg/SmmIpl: expose MM communicate 2 protocol
  ArmPkg/MmCommunicationDxe: expose MM Communicate 2 protocol
  MdeModulePkg/VariableInfo: switch to MM communicate 2 protocol
  MdeModulePkg/FaultTolerantWriteSmmDxe: switch to MM communicate 2
  MdeModulePkg/VariableSmmRuntimeDxe: switch to MM communicate 2
  StandaloneMmPkg: switch to MM communicate 2 protocol

 .../MmCommunicationDxe/MmCommunication.c      | 81 +++++++++----------
 .../MmCommunicationDxe/MmCommunication.inf    |  6 +-
 .../Application/VariableInfo/VariableInfo.c   | 19 +++--
 .../Application/VariableInfo/VariableInfo.inf |  2 +-
 MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c        | 80 ++++++++++++++++++
 MdeModulePkg/Core/PiSmmCore/PiSmmIpl.inf      |  1 +
 MdeModulePkg/Include/Guid/SmmVariableCommon.h |  6 +-
 .../FaultTolerantWriteSmmCommon.h             |  2 +-
 .../FaultTolerantWriteSmmDxe.c                | 25 +++---
 .../FaultTolerantWriteSmmDxe.h                |  2 +-
 .../FaultTolerantWriteSmmDxe.inf              |  4 +-
 .../RuntimeDxe/VariableSmmRuntimeDxe.c        | 39 ++++-----
 .../RuntimeDxe/VariableSmmRuntimeDxe.inf      |  4 +-
 MdePkg/Include/Protocol/MmCommunication2.h    | 69 ++++++++++++++++
 MdePkg/MdePkg.dec                             |  7 ++
 StandaloneMmPkg/Core/StandaloneMmCore.h       |  2 +-
 .../StandaloneMmCpu/AArch64/StandaloneMmCpu.h |  2 +-
 17 files changed, 256 insertions(+), 95 deletions(-)
 create mode 100644 MdePkg/Include/Protocol/MmCommunication2.h

-- 
2.17.1


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Re: [edk2-devel] [PATCH resend 0/7] Add support for MM communicate2 protocol (PI 1.7a)

Posted by Liming Gao 3 years, 11 months ago

Ard:
  I see this change updates VariableSmmRuntimeDxe to consume mMmCommunication2 with mVariableBufferPhysical and mVariableBuffer for physical and virtual. 
  But, FaultTolerantWriteSmmDxe consumes mMmCommunication2 with the same SmmCommunicateHeader for physical and virtual. 

  Is there any difference between them?

Thanks
Liming
> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Ard Biesheuvel
> Sent: Thursday, May 7, 2020 1:27 AM
> To: devel@edk2.groups.io
> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>; Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming
> <liming.gao@intel.com>; Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>; Leif Lindholm
> <leif@nuviainc.com>; Sami Mujawar <sami.mujawar@arm.com>; Yao, Jiewen <jiewen.yao@intel.com>
> Subject: [edk2-devel] [PATCH resend 0/7] Add support for MM communicate2 protocol (PI 1.7a)
> 
> Now that version 1.7 errata A of the PI spec has finally been released,
> we can take another look at this series, which incorporates the new MM
> communicate2 protocol definition, updates the producers for conventional
> SMM and standalone MM, and updates the variable store components to consume
> the new version of the protocol. This solves a long standing compatibility
> issue which made standalone MM fundamentally incompatible with a virtually
> remapped address space as installed by SetVirtualAddressMap().
> 
> Cc: Michael D Kinney <michael.d.kinney@intel.com>
> Cc: Liming Gao <liming.gao@intel.com>
> Cc: Jian J Wang <jian.j.wang@intel.com>
> Cc: Hao A Wu <hao.a.wu@intel.com>
> Cc: Leif Lindholm <leif@nuviainc.com>
> Cc: Sami Mujawar <sami.mujawar@arm.com>
> Cc: Jiewen Yao <jiewen.yao@intel.com>
> 
> Ard Biesheuvel (7):
>   MdePkg: introduce MM communicate 2 protocol
>   MdeModulePkg/SmmIpl: expose MM communicate 2 protocol
>   ArmPkg/MmCommunicationDxe: expose MM Communicate 2 protocol
>   MdeModulePkg/VariableInfo: switch to MM communicate 2 protocol
>   MdeModulePkg/FaultTolerantWriteSmmDxe: switch to MM communicate 2
>   MdeModulePkg/VariableSmmRuntimeDxe: switch to MM communicate 2
>   StandaloneMmPkg: switch to MM communicate 2 protocol
> 
>  .../MmCommunicationDxe/MmCommunication.c      | 81 +++++++++----------
>  .../MmCommunicationDxe/MmCommunication.inf    |  6 +-
>  .../Application/VariableInfo/VariableInfo.c   | 19 +++--
>  .../Application/VariableInfo/VariableInfo.inf |  2 +-
>  MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c        | 80 ++++++++++++++++++
>  MdeModulePkg/Core/PiSmmCore/PiSmmIpl.inf      |  1 +
>  MdeModulePkg/Include/Guid/SmmVariableCommon.h |  6 +-
>  .../FaultTolerantWriteSmmCommon.h             |  2 +-
>  .../FaultTolerantWriteSmmDxe.c                | 25 +++---
>  .../FaultTolerantWriteSmmDxe.h                |  2 +-
>  .../FaultTolerantWriteSmmDxe.inf              |  4 +-
>  .../RuntimeDxe/VariableSmmRuntimeDxe.c        | 39 ++++-----
>  .../RuntimeDxe/VariableSmmRuntimeDxe.inf      |  4 +-
>  MdePkg/Include/Protocol/MmCommunication2.h    | 69 ++++++++++++++++
>  MdePkg/MdePkg.dec                             |  7 ++
>  StandaloneMmPkg/Core/StandaloneMmCore.h       |  2 +-
>  .../StandaloneMmCpu/AArch64/StandaloneMmCpu.h |  2 +-
>  17 files changed, 256 insertions(+), 95 deletions(-)
>  create mode 100644 MdePkg/Include/Protocol/MmCommunication2.h
> 
> --
> 2.17.1
> 
> 
> 


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Re: [edk2-devel] [PATCH resend 0/7] Add support for MM communicate2 protocol (PI 1.7a)

Posted by Ard Biesheuvel 3 years, 11 months ago

On 5/11/20 4:08 PM, Gao, Liming wrote:
> Ard:
>    I see this change updates VariableSmmRuntimeDxe to consume mMmCommunication2 with mVariableBufferPhysical and mVariableBuffer for physical and virtual.
>    But, FaultTolerantWriteSmmDxe consumes mMmCommunication2 with the same SmmCommunicateHeader for physical and virtual.
> 
>    Is there any difference between them?
> 

Yes. The FTW code never executes at runtime, so it is guaranteed that 
physical == virtual.


>> -----Original Message-----
>> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Ard Biesheuvel
>> Sent: Thursday, May 7, 2020 1:27 AM
>> To: devel@edk2.groups.io
>> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>; Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming
>> <liming.gao@intel.com>; Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>; Leif Lindholm
>> <leif@nuviainc.com>; Sami Mujawar <sami.mujawar@arm.com>; Yao, Jiewen <jiewen.yao@intel.com>
>> Subject: [edk2-devel] [PATCH resend 0/7] Add support for MM communicate2 protocol (PI 1.7a)
>>
>> Now that version 1.7 errata A of the PI spec has finally been released,
>> we can take another look at this series, which incorporates the new MM
>> communicate2 protocol definition, updates the producers for conventional
>> SMM and standalone MM, and updates the variable store components to consume
>> the new version of the protocol. This solves a long standing compatibility
>> issue which made standalone MM fundamentally incompatible with a virtually
>> remapped address space as installed by SetVirtualAddressMap().
>>
>> Cc: Michael D Kinney <michael.d.kinney@intel.com>
>> Cc: Liming Gao <liming.gao@intel.com>
>> Cc: Jian J Wang <jian.j.wang@intel.com>
>> Cc: Hao A Wu <hao.a.wu@intel.com>
>> Cc: Leif Lindholm <leif@nuviainc.com>
>> Cc: Sami Mujawar <sami.mujawar@arm.com>
>> Cc: Jiewen Yao <jiewen.yao@intel.com>
>>
>> Ard Biesheuvel (7):
>>    MdePkg: introduce MM communicate 2 protocol
>>    MdeModulePkg/SmmIpl: expose MM communicate 2 protocol
>>    ArmPkg/MmCommunicationDxe: expose MM Communicate 2 protocol
>>    MdeModulePkg/VariableInfo: switch to MM communicate 2 protocol
>>    MdeModulePkg/FaultTolerantWriteSmmDxe: switch to MM communicate 2
>>    MdeModulePkg/VariableSmmRuntimeDxe: switch to MM communicate 2
>>    StandaloneMmPkg: switch to MM communicate 2 protocol
>>
>>   .../MmCommunicationDxe/MmCommunication.c      | 81 +++++++++----------
>>   .../MmCommunicationDxe/MmCommunication.inf    |  6 +-
>>   .../Application/VariableInfo/VariableInfo.c   | 19 +++--
>>   .../Application/VariableInfo/VariableInfo.inf |  2 +-
>>   MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c        | 80 ++++++++++++++++++
>>   MdeModulePkg/Core/PiSmmCore/PiSmmIpl.inf      |  1 +
>>   MdeModulePkg/Include/Guid/SmmVariableCommon.h |  6 +-
>>   .../FaultTolerantWriteSmmCommon.h             |  2 +-
>>   .../FaultTolerantWriteSmmDxe.c                | 25 +++---
>>   .../FaultTolerantWriteSmmDxe.h                |  2 +-
>>   .../FaultTolerantWriteSmmDxe.inf              |  4 +-
>>   .../RuntimeDxe/VariableSmmRuntimeDxe.c        | 39 ++++-----
>>   .../RuntimeDxe/VariableSmmRuntimeDxe.inf      |  4 +-
>>   MdePkg/Include/Protocol/MmCommunication2.h    | 69 ++++++++++++++++
>>   MdePkg/MdePkg.dec                             |  7 ++
>>   StandaloneMmPkg/Core/StandaloneMmCore.h       |  2 +-
>>   .../StandaloneMmCpu/AArch64/StandaloneMmCpu.h |  2 +-
>>   17 files changed, 256 insertions(+), 95 deletions(-)
>>   create mode 100644 MdePkg/Include/Protocol/MmCommunication2.h
>>
>> --
>> 2.17.1
>>
>>
>> 
> 


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Re: [edk2-devel] [PATCH resend 0/7] Add support for MM communicate2 protocol (PI 1.7a)

Posted by Liming Gao 3 years, 11 months ago

OK. I have no other comment. This patch set is good to me. Reviewed-by: Liming Gao <liming.gao@intel.com>

Thanks
Liming
> -----Original Message-----
> From: Ard Biesheuvel <ard.biesheuvel@arm.com>
> Sent: Monday, May 11, 2020 10:10 PM
> To: Gao, Liming <liming.gao@intel.com>; devel@edk2.groups.io
> Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>; Leif
> Lindholm <leif@nuviainc.com>; Sami Mujawar <sami.mujawar@arm.com>; Yao, Jiewen <jiewen.yao@intel.com>
> Subject: Re: [edk2-devel] [PATCH resend 0/7] Add support for MM communicate2 protocol (PI 1.7a)
> 
> On 5/11/20 4:08 PM, Gao, Liming wrote:
> > Ard:
> >    I see this change updates VariableSmmRuntimeDxe to consume mMmCommunication2 with mVariableBufferPhysical and
> mVariableBuffer for physical and virtual.
> >    But, FaultTolerantWriteSmmDxe consumes mMmCommunication2 with the same SmmCommunicateHeader for physical and
> virtual.
> >
> >    Is there any difference between them?
> >
> 
> Yes. The FTW code never executes at runtime, so it is guaranteed that
> physical == virtual.
> 
> 
> >> -----Original Message-----
> >> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Ard Biesheuvel
> >> Sent: Thursday, May 7, 2020 1:27 AM
> >> To: devel@edk2.groups.io
> >> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>; Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming
> >> <liming.gao@intel.com>; Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>; Leif Lindholm
> >> <leif@nuviainc.com>; Sami Mujawar <sami.mujawar@arm.com>; Yao, Jiewen <jiewen.yao@intel.com>
> >> Subject: [edk2-devel] [PATCH resend 0/7] Add support for MM communicate2 protocol (PI 1.7a)
> >>
> >> Now that version 1.7 errata A of the PI spec has finally been released,
> >> we can take another look at this series, which incorporates the new MM
> >> communicate2 protocol definition, updates the producers for conventional
> >> SMM and standalone MM, and updates the variable store components to consume
> >> the new version of the protocol. This solves a long standing compatibility
> >> issue which made standalone MM fundamentally incompatible with a virtually
> >> remapped address space as installed by SetVirtualAddressMap().
> >>
> >> Cc: Michael D Kinney <michael.d.kinney@intel.com>
> >> Cc: Liming Gao <liming.gao@intel.com>
> >> Cc: Jian J Wang <jian.j.wang@intel.com>
> >> Cc: Hao A Wu <hao.a.wu@intel.com>
> >> Cc: Leif Lindholm <leif@nuviainc.com>
> >> Cc: Sami Mujawar <sami.mujawar@arm.com>
> >> Cc: Jiewen Yao <jiewen.yao@intel.com>
> >>
> >> Ard Biesheuvel (7):
> >>    MdePkg: introduce MM communicate 2 protocol
> >>    MdeModulePkg/SmmIpl: expose MM communicate 2 protocol
> >>    ArmPkg/MmCommunicationDxe: expose MM Communicate 2 protocol
> >>    MdeModulePkg/VariableInfo: switch to MM communicate 2 protocol
> >>    MdeModulePkg/FaultTolerantWriteSmmDxe: switch to MM communicate 2
> >>    MdeModulePkg/VariableSmmRuntimeDxe: switch to MM communicate 2
> >>    StandaloneMmPkg: switch to MM communicate 2 protocol
> >>
> >>   .../MmCommunicationDxe/MmCommunication.c      | 81 +++++++++----------
> >>   .../MmCommunicationDxe/MmCommunication.inf    |  6 +-
> >>   .../Application/VariableInfo/VariableInfo.c   | 19 +++--
> >>   .../Application/VariableInfo/VariableInfo.inf |  2 +-
> >>   MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c        | 80 ++++++++++++++++++
> >>   MdeModulePkg/Core/PiSmmCore/PiSmmIpl.inf      |  1 +
> >>   MdeModulePkg/Include/Guid/SmmVariableCommon.h |  6 +-
> >>   .../FaultTolerantWriteSmmCommon.h             |  2 +-
> >>   .../FaultTolerantWriteSmmDxe.c                | 25 +++---
> >>   .../FaultTolerantWriteSmmDxe.h                |  2 +-
> >>   .../FaultTolerantWriteSmmDxe.inf              |  4 +-
> >>   .../RuntimeDxe/VariableSmmRuntimeDxe.c        | 39 ++++-----
> >>   .../RuntimeDxe/VariableSmmRuntimeDxe.inf      |  4 +-
> >>   MdePkg/Include/Protocol/MmCommunication2.h    | 69 ++++++++++++++++
> >>   MdePkg/MdePkg.dec                             |  7 ++
> >>   StandaloneMmPkg/Core/StandaloneMmCore.h       |  2 +-
> >>   .../StandaloneMmCpu/AArch64/StandaloneMmCpu.h |  2 +-
> >>   17 files changed, 256 insertions(+), 95 deletions(-)
> >>   create mode 100644 MdePkg/Include/Protocol/MmCommunication2.h
> >>
> >> --
> >> 2.17.1
> >>
> >>
> >> 
> >


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Re: [edk2-devel] [PATCH resend 0/7] Add support for MM communicate2 protocol (PI 1.7a)

Posted by Ard Biesheuvel 3 years, 11 months ago

On 5/11/20 4:32 PM, Gao, Liming wrote:
> OK. I have no other comment. This patch set is good to me. Reviewed-by: Liming Gao <liming.gao@intel.com>
> 

Series pushed as PR #606

Thanks all!


>> -----Original Message-----
>> From: Ard Biesheuvel <ard.biesheuvel@arm.com>
>> Sent: Monday, May 11, 2020 10:10 PM
>> To: Gao, Liming <liming.gao@intel.com>; devel@edk2.groups.io
>> Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>; Leif
>> Lindholm <leif@nuviainc.com>; Sami Mujawar <sami.mujawar@arm.com>; Yao, Jiewen <jiewen.yao@intel.com>
>> Subject: Re: [edk2-devel] [PATCH resend 0/7] Add support for MM communicate2 protocol (PI 1.7a)
>>
>> On 5/11/20 4:08 PM, Gao, Liming wrote:
>>> Ard:
>>>     I see this change updates VariableSmmRuntimeDxe to consume mMmCommunication2 with mVariableBufferPhysical and
>> mVariableBuffer for physical and virtual.
>>>     But, FaultTolerantWriteSmmDxe consumes mMmCommunication2 with the same SmmCommunicateHeader for physical and
>> virtual.
>>>
>>>     Is there any difference between them?
>>>
>>
>> Yes. The FTW code never executes at runtime, so it is guaranteed that
>> physical == virtual.
>>
>>
>>>> -----Original Message-----
>>>> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Ard Biesheuvel
>>>> Sent: Thursday, May 7, 2020 1:27 AM
>>>> To: devel@edk2.groups.io
>>>> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>; Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming
>>>> <liming.gao@intel.com>; Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>; Leif Lindholm
>>>> <leif@nuviainc.com>; Sami Mujawar <sami.mujawar@arm.com>; Yao, Jiewen <jiewen.yao@intel.com>
>>>> Subject: [edk2-devel] [PATCH resend 0/7] Add support for MM communicate2 protocol (PI 1.7a)
>>>>
>>>> Now that version 1.7 errata A of the PI spec has finally been released,
>>>> we can take another look at this series, which incorporates the new MM
>>>> communicate2 protocol definition, updates the producers for conventional
>>>> SMM and standalone MM, and updates the variable store components to consume
>>>> the new version of the protocol. This solves a long standing compatibility
>>>> issue which made standalone MM fundamentally incompatible with a virtually
>>>> remapped address space as installed by SetVirtualAddressMap().
>>>>
>>>> Cc: Michael D Kinney <michael.d.kinney@intel.com>
>>>> Cc: Liming Gao <liming.gao@intel.com>
>>>> Cc: Jian J Wang <jian.j.wang@intel.com>
>>>> Cc: Hao A Wu <hao.a.wu@intel.com>
>>>> Cc: Leif Lindholm <leif@nuviainc.com>
>>>> Cc: Sami Mujawar <sami.mujawar@arm.com>
>>>> Cc: Jiewen Yao <jiewen.yao@intel.com>
>>>>
>>>> Ard Biesheuvel (7):
>>>>     MdePkg: introduce MM communicate 2 protocol
>>>>     MdeModulePkg/SmmIpl: expose MM communicate 2 protocol
>>>>     ArmPkg/MmCommunicationDxe: expose MM Communicate 2 protocol
>>>>     MdeModulePkg/VariableInfo: switch to MM communicate 2 protocol
>>>>     MdeModulePkg/FaultTolerantWriteSmmDxe: switch to MM communicate 2
>>>>     MdeModulePkg/VariableSmmRuntimeDxe: switch to MM communicate 2
>>>>     StandaloneMmPkg: switch to MM communicate 2 protocol
>>>>
>>>>    .../MmCommunicationDxe/MmCommunication.c      | 81 +++++++++----------
>>>>    .../MmCommunicationDxe/MmCommunication.inf    |  6 +-
>>>>    .../Application/VariableInfo/VariableInfo.c   | 19 +++--
>>>>    .../Application/VariableInfo/VariableInfo.inf |  2 +-
>>>>    MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c        | 80 ++++++++++++++++++
>>>>    MdeModulePkg/Core/PiSmmCore/PiSmmIpl.inf      |  1 +
>>>>    MdeModulePkg/Include/Guid/SmmVariableCommon.h |  6 +-
>>>>    .../FaultTolerantWriteSmmCommon.h             |  2 +-
>>>>    .../FaultTolerantWriteSmmDxe.c                | 25 +++---
>>>>    .../FaultTolerantWriteSmmDxe.h                |  2 +-
>>>>    .../FaultTolerantWriteSmmDxe.inf              |  4 +-
>>>>    .../RuntimeDxe/VariableSmmRuntimeDxe.c        | 39 ++++-----
>>>>    .../RuntimeDxe/VariableSmmRuntimeDxe.inf      |  4 +-
>>>>    MdePkg/Include/Protocol/MmCommunication2.h    | 69 ++++++++++++++++
>>>>    MdePkg/MdePkg.dec                             |  7 ++
>>>>    StandaloneMmPkg/Core/StandaloneMmCore.h       |  2 +-
>>>>    .../StandaloneMmCpu/AArch64/StandaloneMmCpu.h |  2 +-
>>>>    17 files changed, 256 insertions(+), 95 deletions(-)
>>>>    create mode 100644 MdePkg/Include/Protocol/MmCommunication2.h
>>>>
>>>> --
>>>> 2.17.1
>>>>
>>>>
>>>> 
>>>
> 


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