* [PATCH v2 0/2] EDK2 Code First: PI Specification: Update EFI_MM_COMMUNICATE_HEADER
@ 2022-01-08 1:32 Kun Qin
2022-01-08 1:32 ` [PATCH v2 1/2] EDK2 Code First: PI Specification: New error codes of Host Software class Kun Qin
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Kun Qin @ 2022-01-08 1:32 UTC (permalink / raw)
To: devel
Cc: Andrew Fish, Leif Lindholm, Michael D Kinney, Liming Gao,
Zhiguang Liu
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3794
This patch series is a rebase of previous submission:
https://edk2.groups.io/g/devel/message/85302
In current Status Codes definitions of PI spec v1.7 errata, there are a
few instances where the software could trigger system reboots while the
corresponding case were not covered by the already defined status codes.
One scenario that OEMs would be interested is that fragmented memory map
from boot to boot would fail to meet certain OS ACPI requirements (i.e.
S4 resume boot requires consistent memory maps) and trigger system
reboots. Yet the corresponding case was not covered by the already
defined status codes.
The unexpected system reboots above could indicate decay of system health
and reporting of such generic events would provide helpful information to
OEMs to investigate/prevent system failures in general.
The change intends to expand definitions of `EFI_SW_EC_**` under Status
Codes to cover more unexpected system reboot events, which could improve
Status Code futility and readability.
Compared to v1 series, v2 patch changes include:
a. Removed "RELEASE_ASSERT" definition;
b. Removed reference to memory type information;
Patch v2 branch: https://github.com/kuqin12/edk2/tree/BZ3794-expand_status_codes_v2
Cc: Andrew Fish <afish@apple.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Kun Qin (2):
EDK2 Code First: PI Specification: New error codes of Host Software
class
MdePkg: MmCommunication: Add new Host Software class Error Code to
MdePkg
CodeFirst/BZ3794-SpecChange.md | 55 ++++++++++++++++++++
MdePkg/Include/Pi/PiStatusCode.h | 1 +
2 files changed, 56 insertions(+)
create mode 100644 CodeFirst/BZ3794-SpecChange.md
--
2.34.1.windows.1
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2 1/2] EDK2 Code First: PI Specification: New error codes of Host Software class
2022-01-08 1:32 [PATCH v2 0/2] EDK2 Code First: PI Specification: Update EFI_MM_COMMUNICATE_HEADER Kun Qin
@ 2022-01-08 1:32 ` Kun Qin
2022-01-08 1:32 ` [PATCH v2 2/2] MdePkg: MmCommunication: Add new Host Software class Error Code to MdePkg Kun Qin
[not found] ` <16C82792D4F086F3.710@groups.io>
2 siblings, 0 replies; 6+ messages in thread
From: Kun Qin @ 2022-01-08 1:32 UTC (permalink / raw)
To: devel
Cc: Andrew Fish, Leif Lindholm, Michael D Kinney, Liming Gao,
Zhiguang Liu
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3794
This change includes specification update markdown file that describes
the proposed PI Specification v1.7 Errata A in detail and potential
impact to the existing codebase.
Cc: Andrew Fish <afish@apple.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Kun Qin <kuqin12@gmail.com>
---
Notes:
v2:
- Removed "RELEASE_ASSERT" definition
- Removed reference to EDK2 based memory type info [Mike]
CodeFirst/BZ3794-SpecChange.md | 55 ++++++++++++++++++++
1 file changed, 55 insertions(+)
diff --git a/CodeFirst/BZ3794-SpecChange.md b/CodeFirst/BZ3794-SpecChange.md
new file mode 100644
index 000000000000..61a0be798d7f
--- /dev/null
+++ b/CodeFirst/BZ3794-SpecChange.md
@@ -0,0 +1,55 @@
+# Title: Introduction of `EFI_SW_EC_FRAGMENTED_MEMORY_MAP` Status Code
+
+## Status: Draft
+
+## Document: UEFI Platform Initialization Specification Version 1.7 Errata A
+
+## License
+
+SPDX-License-Identifier: CC-BY-4.0
+
+## Submitter: [TianoCore Community](https://www.tianocore.org)
+
+## Summary of the change
+
+Add `EFI_SW_EC_FRAGMENTED_MEMORY_MAP` into Status Codes definition.
+
+## Benefits of the change
+
+Current Status Codes covered various [software class error code definitions](https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Pi/PiStatusCode.h).
+
+However, fragmented memory map from boot to boot would fail to meet certain OS ACPI requirements (i.e. S4 resume boot requires consistent memory maps) and trigger system reboots. Yet the corresponding case was not covered by the already defined status codes.
+
+The unexpected system reboots above could indicate decay of system health and reporting of such generic events would provide helpful information to OEMs to investigate/prevent system failures in general.
+
+The request of this change intends to expand definitions of `EFI_SW_EC_**` under Status Codes to cover more unexpected system reboot events, which could improve Status Code futility and readability.
+
+## Impact of the change
+
+Occupy a new macro definitions of Error Codes under Software class Status Codes.
+
+## Detailed description of the change [normative updates]
+
+### Specification Changes
+
+1. In PI Specification v1.7 Errata A: Vol. 3, Table 3-61: Error Code Operations: Host Software Class, add one new rows below `EFI_SW_EC_FV_CORRUPTED` definition:
+
+ | Operation | Description | Extended Data |
+ | --- | --- | --- |
+ | EFI_SW_EC_FRAGMENTED_MEMORY_MAP | System will reboot due to fragmented memory maps | None |
+
+1. In PI Specification v1.7 Errata A: Vol. 3, Table 3-61: Error Code Operations: Host Software Class, replace the row of `0x0014-0x00FF` to:
+
+ | Operation | Description | Extended Data |
+ | --- | --- | --- |
+ | 0x0015-0x00FF | Reserved for future use by this specification for Host Software class error codes. | None |
+
+1. In PI Specification v1.7 Errata A: Vol. 3, Section 6.7.4.3 Error Code Definitions: Prototype, add one new definitions below `EFI_SW_EC_FV_CORRUPTED` definition:
+
+ ```c
+ #define EFI_SW_EC_FRAGMENTED_MEMORY_MAP 0x00000014
+ ```
+
+### Code Changes
+
+1. Add macro definitions in `MdePkg/Include/Pi/PiStatusCode.h` to match new specification.
--
2.34.1.windows.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v2 2/2] MdePkg: MmCommunication: Add new Host Software class Error Code to MdePkg
2022-01-08 1:32 [PATCH v2 0/2] EDK2 Code First: PI Specification: Update EFI_MM_COMMUNICATE_HEADER Kun Qin
2022-01-08 1:32 ` [PATCH v2 1/2] EDK2 Code First: PI Specification: New error codes of Host Software class Kun Qin
@ 2022-01-08 1:32 ` Kun Qin
[not found] ` <16C82792D4F086F3.710@groups.io>
2 siblings, 0 replies; 6+ messages in thread
From: Kun Qin @ 2022-01-08 1:32 UTC (permalink / raw)
To: devel; +Cc: Michael D Kinney, Liming Gao, Zhiguang Liu
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3794
This change introduces a new error code definitions under Host Software
class.
The new error code definition will cover system reboot events under the
conditions of fragmented memory map from one boot to another.
These error codes could provide helpful datapoints to OEMs to investigate
and prevent system failures in general.
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Kun Qin <kuqin12@gmail.com>
---
Notes:
v2:
- Removed "RELEASE_ASSERT" definition
- Removed reference to EDK2 based memory type info [Mike]
MdePkg/Include/Pi/PiStatusCode.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/MdePkg/Include/Pi/PiStatusCode.h b/MdePkg/Include/Pi/PiStatusCode.h
index ef2aea7364bc..c389171a8d00 100644
--- a/MdePkg/Include/Pi/PiStatusCode.h
+++ b/MdePkg/Include/Pi/PiStatusCode.h
@@ -985,6 +985,7 @@ typedef struct {
#define EFI_SW_EC_EVENT_LOG_FULL 0x00000011
#define EFI_SW_EC_WRITE_PROTECTED 0x00000012
#define EFI_SW_EC_FV_CORRUPTED 0x00000013
+#define EFI_SW_EC_FRAGMENTED_MEMORY_MAP 0x00000014
///@}
//
--
2.34.1.windows.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [edk2-devel] [PATCH v2 1/2] EDK2 Code First: PI Specification: New error codes of Host Software class
[not found] ` <16C82792D4F086F3.710@groups.io>
@ 2022-01-18 19:00 ` Kun Qin
2022-01-18 22:43 ` Michael D Kinney
0 siblings, 1 reply; 6+ messages in thread
From: Kun Qin @ 2022-01-18 19:00 UTC (permalink / raw)
To: devel, Michael D Kinney
Cc: Andrew Fish, Leif Lindholm, Liming Gao, Zhiguang Liu
Hi Mike,
Do you have further feedback regarding this updated change? If not,
could you please shed some light on how to proceed on this code first PI
spec change request?
Any help is appreciated.
Regards,
Kun
On 01/07/2022 17:32, Kun Qin via groups.io wrote:
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3794
>
> This change includes specification update markdown file that describes
> the proposed PI Specification v1.7 Errata A in detail and potential
> impact to the existing codebase.
>
> Cc: Andrew Fish <afish@apple.com>
> Cc: Leif Lindholm <leif@nuviainc.com>
> Cc: Michael D Kinney <michael.d.kinney@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Zhiguang Liu <zhiguang.liu@intel.com>
>
> Signed-off-by: Kun Qin <kuqin12@gmail.com>
> ---
>
> Notes:
> v2:
> - Removed "RELEASE_ASSERT" definition
> - Removed reference to EDK2 based memory type info [Mike]
>
> CodeFirst/BZ3794-SpecChange.md | 55 ++++++++++++++++++++
> 1 file changed, 55 insertions(+)
>
> diff --git a/CodeFirst/BZ3794-SpecChange.md b/CodeFirst/BZ3794-SpecChange.md
> new file mode 100644
> index 000000000000..61a0be798d7f
> --- /dev/null
> +++ b/CodeFirst/BZ3794-SpecChange.md
> @@ -0,0 +1,55 @@
> +# Title: Introduction of `EFI_SW_EC_FRAGMENTED_MEMORY_MAP` Status Code
> +
> +## Status: Draft
> +
> +## Document: UEFI Platform Initialization Specification Version 1.7 Errata A
> +
> +## License
> +
> +SPDX-License-Identifier: CC-BY-4.0
> +
> +## Submitter: [TianoCore Community](https://www.tianocore.org)
> +
> +## Summary of the change
> +
> +Add `EFI_SW_EC_FRAGMENTED_MEMORY_MAP` into Status Codes definition.
> +
> +## Benefits of the change
> +
> +Current Status Codes covered various [software class error code definitions](https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Pi/PiStatusCode.h).
> +
> +However, fragmented memory map from boot to boot would fail to meet certain OS ACPI requirements (i.e. S4 resume boot requires consistent memory maps) and trigger system reboots. Yet the corresponding case was not covered by the already defined status codes.
> +
> +The unexpected system reboots above could indicate decay of system health and reporting of such generic events would provide helpful information to OEMs to investigate/prevent system failures in general.
> +
> +The request of this change intends to expand definitions of `EFI_SW_EC_**` under Status Codes to cover more unexpected system reboot events, which could improve Status Code futility and readability.
> +
> +## Impact of the change
> +
> +Occupy a new macro definitions of Error Codes under Software class Status Codes.
> +
> +## Detailed description of the change [normative updates]
> +
> +### Specification Changes
> +
> +1. In PI Specification v1.7 Errata A: Vol. 3, Table 3-61: Error Code Operations: Host Software Class, add one new rows below `EFI_SW_EC_FV_CORRUPTED` definition:
> +
> + | Operation | Description | Extended Data |
> + | --- | --- | --- |
> + | EFI_SW_EC_FRAGMENTED_MEMORY_MAP | System will reboot due to fragmented memory maps | None |
> +
> +1. In PI Specification v1.7 Errata A: Vol. 3, Table 3-61: Error Code Operations: Host Software Class, replace the row of `0x0014-0x00FF` to:
> +
> + | Operation | Description | Extended Data |
> + | --- | --- | --- |
> + | 0x0015-0x00FF | Reserved for future use by this specification for Host Software class error codes. | None |
> +
> +1. In PI Specification v1.7 Errata A: Vol. 3, Section 6.7.4.3 Error Code Definitions: Prototype, add one new definitions below `EFI_SW_EC_FV_CORRUPTED` definition:
> +
> + ```c
> + #define EFI_SW_EC_FRAGMENTED_MEMORY_MAP 0x00000014
> + ```
> +
> +### Code Changes
> +
> +1. Add macro definitions in `MdePkg/Include/Pi/PiStatusCode.h` to match new specification.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [edk2-devel] [PATCH v2 1/2] EDK2 Code First: PI Specification: New error codes of Host Software class
2022-01-18 19:00 ` [edk2-devel] [PATCH v2 1/2] EDK2 Code First: PI Specification: New error codes of Host Software class Kun Qin
@ 2022-01-18 22:43 ` Michael D Kinney
2022-01-25 18:42 ` Kun Qin
0 siblings, 1 reply; 6+ messages in thread
From: Michael D Kinney @ 2022-01-18 22:43 UTC (permalink / raw)
To: devel@edk2.groups.io, kuqin12@gmail.com, Kinney, Michael D
Cc: Andrew Fish, Leif Lindholm, Gao, Liming, Liu, Zhiguang
The spec and code changes need to be put together in the edk2-staging repository
following the process here:
https://github.com/tianocore/tianocore.github.io/wiki/EDK-II-Code-First-Process
Once we have Reviewed-by from community for the spec and code changes and everything
is checked into the edk2-staging repository, platforms can test the changes and provide
feedback. The amount of testing required depends on the complexity of the change.
Once testing requirements have been met, it is ready for UEFI Forum review of the
content in edk2-staging.
Mike
> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Kun Qin
> Sent: Tuesday, January 18, 2022 11:00 AM
> To: devel@edk2.groups.io; Kinney, Michael D <michael.d.kinney@intel.com>
> Cc: Andrew Fish <afish@apple.com>; Leif Lindholm <leif@nuviainc.com>; Gao, Liming <gaoliming@byosoft.com.cn>; Liu, Zhiguang
> <zhiguang.liu@intel.com>
> Subject: Re: [edk2-devel] [PATCH v2 1/2] EDK2 Code First: PI Specification: New error codes of Host Software class
>
> Hi Mike,
>
> Do you have further feedback regarding this updated change? If not,
> could you please shed some light on how to proceed on this code first PI
> spec change request?
>
> Any help is appreciated.
>
> Regards,
> Kun
>
> On 01/07/2022 17:32, Kun Qin via groups.io wrote:
> > REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3794
> >
> > This change includes specification update markdown file that describes
> > the proposed PI Specification v1.7 Errata A in detail and potential
> > impact to the existing codebase.
> >
> > Cc: Andrew Fish <afish@apple.com>
> > Cc: Leif Lindholm <leif@nuviainc.com>
> > Cc: Michael D Kinney <michael.d.kinney@intel.com>
> > Cc: Liming Gao <gaoliming@byosoft.com.cn>
> > Cc: Zhiguang Liu <zhiguang.liu@intel.com>
> >
> > Signed-off-by: Kun Qin <kuqin12@gmail.com>
> > ---
> >
> > Notes:
> > v2:
> > - Removed "RELEASE_ASSERT" definition
> > - Removed reference to EDK2 based memory type info [Mike]
> >
> > CodeFirst/BZ3794-SpecChange.md | 55 ++++++++++++++++++++
> > 1 file changed, 55 insertions(+)
> >
> > diff --git a/CodeFirst/BZ3794-SpecChange.md b/CodeFirst/BZ3794-SpecChange.md
> > new file mode 100644
> > index 000000000000..61a0be798d7f
> > --- /dev/null
> > +++ b/CodeFirst/BZ3794-SpecChange.md
> > @@ -0,0 +1,55 @@
> > +# Title: Introduction of `EFI_SW_EC_FRAGMENTED_MEMORY_MAP` Status Code
> > +
> > +## Status: Draft
> > +
> > +## Document: UEFI Platform Initialization Specification Version 1.7 Errata A
> > +
> > +## License
> > +
> > +SPDX-License-Identifier: CC-BY-4.0
> > +
> > +## Submitter: [TianoCore Community](https://www.tianocore.org)
> > +
> > +## Summary of the change
> > +
> > +Add `EFI_SW_EC_FRAGMENTED_MEMORY_MAP` into Status Codes definition.
> > +
> > +## Benefits of the change
> > +
> > +Current Status Codes covered various [software class error code
> definitions](https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Pi/PiStatusCode.h).
> > +
> > +However, fragmented memory map from boot to boot would fail to meet certain OS ACPI requirements (i.e. S4 resume boot requires
> consistent memory maps) and trigger system reboots. Yet the corresponding case was not covered by the already defined status
> codes.
> > +
> > +The unexpected system reboots above could indicate decay of system health and reporting of such generic events would provide
> helpful information to OEMs to investigate/prevent system failures in general.
> > +
> > +The request of this change intends to expand definitions of `EFI_SW_EC_**` under Status Codes to cover more unexpected system
> reboot events, which could improve Status Code futility and readability.
> > +
> > +## Impact of the change
> > +
> > +Occupy a new macro definitions of Error Codes under Software class Status Codes.
> > +
> > +## Detailed description of the change [normative updates]
> > +
> > +### Specification Changes
> > +
> > +1. In PI Specification v1.7 Errata A: Vol. 3, Table 3-61: Error Code Operations: Host Software Class, add one new rows below
> `EFI_SW_EC_FV_CORRUPTED` definition:
> > +
> > + | Operation | Description | Extended Data |
> > + | --- | --- | --- |
> > + | EFI_SW_EC_FRAGMENTED_MEMORY_MAP | System will reboot due to fragmented memory maps | None |
> > +
> > +1. In PI Specification v1.7 Errata A: Vol. 3, Table 3-61: Error Code Operations: Host Software Class, replace the row of
> `0x0014-0x00FF` to:
> > +
> > + | Operation | Description | Extended Data |
> > + | --- | --- | --- |
> > + | 0x0015-0x00FF | Reserved for future use by this specification for Host Software class error codes. | None |
> > +
> > +1. In PI Specification v1.7 Errata A: Vol. 3, Section 6.7.4.3 Error Code Definitions: Prototype, add one new definitions below
> `EFI_SW_EC_FV_CORRUPTED` definition:
> > +
> > + ```c
> > + #define EFI_SW_EC_FRAGMENTED_MEMORY_MAP 0x00000014
> > + ```
> > +
> > +### Code Changes
> > +
> > +1. Add macro definitions in `MdePkg/Include/Pi/PiStatusCode.h` to match new specification.
>
>
>
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [edk2-devel] [PATCH v2 1/2] EDK2 Code First: PI Specification: New error codes of Host Software class
2022-01-18 22:43 ` Michael D Kinney
@ 2022-01-25 18:42 ` Kun Qin
0 siblings, 0 replies; 6+ messages in thread
From: Kun Qin @ 2022-01-25 18:42 UTC (permalink / raw)
To: devel, michael.d.kinney
Cc: Andrew Fish, Leif Lindholm, Gao, Liming, Liu, Zhiguang
Hi Mike,
Sorry if the questions are being naive. My interpretation for the
code-first process below is that we need to first obtain "Reviewed-By"
tags for all patches in this branch on this mailing list, is that correct?
If so, do you mind provide rb tags or other feedback for them? Or if
there is a designated panel to review code-first changes, could you
please let me know where the name list is? Otherwise, please advise.
Thanks in advance.
Regards,
Kun
On 01/18/2022 14:43, Michael D Kinney wrote:
> The spec and code changes need to be put together in the edk2-staging repository
> following the process here:
>
> https://github.com/tianocore/tianocore.github.io/wiki/EDK-II-Code-First-Process
>
> Once we have Reviewed-by from community for the spec and code changes and everything
> is checked into the edk2-staging repository, platforms can test the changes and provide
> feedback. The amount of testing required depends on the complexity of the change.
> Once testing requirements have been met, it is ready for UEFI Forum review of the
> content in edk2-staging.
>
>
> Mike
>
>> -----Original Message-----
>> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Kun Qin
>> Sent: Tuesday, January 18, 2022 11:00 AM
>> To: devel@edk2.groups.io; Kinney, Michael D <michael.d.kinney@intel.com>
>> Cc: Andrew Fish <afish@apple.com>; Leif Lindholm <leif@nuviainc.com>; Gao, Liming <gaoliming@byosoft.com.cn>; Liu, Zhiguang
>> <zhiguang.liu@intel.com>
>> Subject: Re: [edk2-devel] [PATCH v2 1/2] EDK2 Code First: PI Specification: New error codes of Host Software class
>>
>> Hi Mike,
>>
>> Do you have further feedback regarding this updated change? If not,
>> could you please shed some light on how to proceed on this code first PI
>> spec change request?
>>
>> Any help is appreciated.
>>
>> Regards,
>> Kun
>>
>> On 01/07/2022 17:32, Kun Qin via groups.io wrote:
>>> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3794
>>>
>>> This change includes specification update markdown file that describes
>>> the proposed PI Specification v1.7 Errata A in detail and potential
>>> impact to the existing codebase.
>>>
>>> Cc: Andrew Fish <afish@apple.com>
>>> Cc: Leif Lindholm <leif@nuviainc.com>
>>> Cc: Michael D Kinney <michael.d.kinney@intel.com>
>>> Cc: Liming Gao <gaoliming@byosoft.com.cn>
>>> Cc: Zhiguang Liu <zhiguang.liu@intel.com>
>>>
>>> Signed-off-by: Kun Qin <kuqin12@gmail.com>
>>> ---
>>>
>>> Notes:
>>> v2:
>>> - Removed "RELEASE_ASSERT" definition
>>> - Removed reference to EDK2 based memory type info [Mike]
>>>
>>> CodeFirst/BZ3794-SpecChange.md | 55 ++++++++++++++++++++
>>> 1 file changed, 55 insertions(+)
>>>
>>> diff --git a/CodeFirst/BZ3794-SpecChange.md b/CodeFirst/BZ3794-SpecChange.md
>>> new file mode 100644
>>> index 000000000000..61a0be798d7f
>>> --- /dev/null
>>> +++ b/CodeFirst/BZ3794-SpecChange.md
>>> @@ -0,0 +1,55 @@
>>> +# Title: Introduction of `EFI_SW_EC_FRAGMENTED_MEMORY_MAP` Status Code
>>> +
>>> +## Status: Draft
>>> +
>>> +## Document: UEFI Platform Initialization Specification Version 1.7 Errata A
>>> +
>>> +## License
>>> +
>>> +SPDX-License-Identifier: CC-BY-4.0
>>> +
>>> +## Submitter: [TianoCore Community](https://www.tianocore.org)
>>> +
>>> +## Summary of the change
>>> +
>>> +Add `EFI_SW_EC_FRAGMENTED_MEMORY_MAP` into Status Codes definition.
>>> +
>>> +## Benefits of the change
>>> +
>>> +Current Status Codes covered various [software class error code
>> definitions](https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Pi/PiStatusCode.h).
>>> +
>>> +However, fragmented memory map from boot to boot would fail to meet certain OS ACPI requirements (i.e. S4 resume boot requires
>> consistent memory maps) and trigger system reboots. Yet the corresponding case was not covered by the already defined status
>> codes.
>>> +
>>> +The unexpected system reboots above could indicate decay of system health and reporting of such generic events would provide
>> helpful information to OEMs to investigate/prevent system failures in general.
>>> +
>>> +The request of this change intends to expand definitions of `EFI_SW_EC_**` under Status Codes to cover more unexpected system
>> reboot events, which could improve Status Code futility and readability.
>>> +
>>> +## Impact of the change
>>> +
>>> +Occupy a new macro definitions of Error Codes under Software class Status Codes.
>>> +
>>> +## Detailed description of the change [normative updates]
>>> +
>>> +### Specification Changes
>>> +
>>> +1. In PI Specification v1.7 Errata A: Vol. 3, Table 3-61: Error Code Operations: Host Software Class, add one new rows below
>> `EFI_SW_EC_FV_CORRUPTED` definition:
>>> +
>>> + | Operation | Description | Extended Data |
>>> + | --- | --- | --- |
>>> + | EFI_SW_EC_FRAGMENTED_MEMORY_MAP | System will reboot due to fragmented memory maps | None |
>>> +
>>> +1. In PI Specification v1.7 Errata A: Vol. 3, Table 3-61: Error Code Operations: Host Software Class, replace the row of
>> `0x0014-0x00FF` to:
>>> +
>>> + | Operation | Description | Extended Data |
>>> + | --- | --- | --- |
>>> + | 0x0015-0x00FF | Reserved for future use by this specification for Host Software class error codes. | None |
>>> +
>>> +1. In PI Specification v1.7 Errata A: Vol. 3, Section 6.7.4.3 Error Code Definitions: Prototype, add one new definitions below
>> `EFI_SW_EC_FV_CORRUPTED` definition:
>>> +
>>> + ```c
>>> + #define EFI_SW_EC_FRAGMENTED_MEMORY_MAP 0x00000014
>>> + ```
>>> +
>>> +### Code Changes
>>> +
>>> +1. Add macro definitions in `MdePkg/Include/Pi/PiStatusCode.h` to match new specification.
>>
>>
>>
>>
>
>
>
>
>
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2022-01-08 1:32 [PATCH v2 0/2] EDK2 Code First: PI Specification: Update EFI_MM_COMMUNICATE_HEADER Kun Qin
2022-01-08 1:32 ` [PATCH v2 1/2] EDK2 Code First: PI Specification: New error codes of Host Software class Kun Qin
2022-01-08 1:32 ` [PATCH v2 2/2] MdePkg: MmCommunication: Add new Host Software class Error Code to MdePkg Kun Qin
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2022-01-18 19:00 ` [edk2-devel] [PATCH v2 1/2] EDK2 Code First: PI Specification: New error codes of Host Software class Kun Qin
2022-01-18 22:43 ` Michael D Kinney
2022-01-25 18:42 ` Kun Qin
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