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[edk2] [PATCH 00/10] Use a better algorithm to calculate MTRR

Ruiyu Ni posted 10 patches 7 years ago
Failed in applying to current master (apply log)
UefiCpuPkg/Include/Library/MtrrLib.h |   17 +-
UefiCpuPkg/Library/MtrrLib/MtrrLib.c | 1838 ++++++++++++++++++++--------------
2 files changed, 1068 insertions(+), 787 deletions(-)
[edk2] [PATCH 00/10] Use a better algorithm to calculate MTRR
Posted by Ruiyu Ni 7 years ago 
The new algorithm finds out the more optimal MTRR solution for
current memory type settings.
Compare against the original algorithm, the new one guarantees
to find the correct MTRR solution, but doesn't guarantee to
find the most optimal MTRR solution.

Ruiyu Ni (10):
  UefiCpuPkg/MtrrLib: Correct typo in comments and remove TABs
  UefiCpuPkg/MtrrLib: Add CacheInvalid enum type to MtrrLib.h
  UefiCpuPkg/MtrrLib: IsMtrrSupported uses definitions in Msr.h
  UefiCpuPkg/MtrrLib: GetVariableMtrrCountWorker uses definitions in
    Msr.h
  UefiCpuPkg/MtrrLib: Add MtrrLib prefix to ProgramFixedMtrr
  UefiCpuPkg/MtrrLib: Add MtrrLib prefix to several internal functions
  UefiCpuPkg/MtrrLib: MtrrLibInitializeMtrrMask() uses definitions in
    CpuId.h
  UefiCpuPkg/MtrrLib: Use a better algorithm to calculate MTRR
  UefiCpuPkg/MtrrLib: Refine MtrrGetMemoryAttributeByAddressWorker
  UefiCpuPkg/MtrrLib: All functions use definitions in Msr.h

 UefiCpuPkg/Include/Library/MtrrLib.h |   17 +-
 UefiCpuPkg/Library/MtrrLib/MtrrLib.c | 1838 ++++++++++++++++++++--------------
 2 files changed, 1068 insertions(+), 787 deletions(-)

-- 
2.9.0.windows.1

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Re: [edk2] [PATCH 00/10] Use a better algorithm to calculate MTRR
Posted by Fan, Jeff 7 years ago 
Serials Reviewed-by: Jeff Fan <jeff.fan@intel.com>

Please updating the correct Copyright date when you push this serial of patches.

-----Original Message-----
From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Ruiyu Ni
Sent: Wednesday, March 29, 2017 11:04 AM
To: edk2-devel@lists.01.org
Subject: [edk2] [PATCH 00/10] Use a better algorithm to calculate MTRR

The new algorithm finds out the more optimal MTRR solution for current memory type settings.
Compare against the original algorithm, the new one guarantees to find the correct MTRR solution, but doesn't guarantee to find the most optimal MTRR solution.

Ruiyu Ni (10):
  UefiCpuPkg/MtrrLib: Correct typo in comments and remove TABs
  UefiCpuPkg/MtrrLib: Add CacheInvalid enum type to MtrrLib.h
  UefiCpuPkg/MtrrLib: IsMtrrSupported uses definitions in Msr.h
  UefiCpuPkg/MtrrLib: GetVariableMtrrCountWorker uses definitions in
    Msr.h
  UefiCpuPkg/MtrrLib: Add MtrrLib prefix to ProgramFixedMtrr
  UefiCpuPkg/MtrrLib: Add MtrrLib prefix to several internal functions
  UefiCpuPkg/MtrrLib: MtrrLibInitializeMtrrMask() uses definitions in
    CpuId.h
  UefiCpuPkg/MtrrLib: Use a better algorithm to calculate MTRR
  UefiCpuPkg/MtrrLib: Refine MtrrGetMemoryAttributeByAddressWorker
  UefiCpuPkg/MtrrLib: All functions use definitions in Msr.h

 UefiCpuPkg/Include/Library/MtrrLib.h |   17 +-
 UefiCpuPkg/Library/MtrrLib/MtrrLib.c | 1838 ++++++++++++++++++++--------------
 2 files changed, 1068 insertions(+), 787 deletions(-)

--
2.9.0.windows.1

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Re: [edk2] [PATCH 00/10] Use a better algorithm to calculate MTRR
Posted by Laszlo Ersek 7 years ago 
On 03/29/17 05:03, Ruiyu Ni wrote:
> The new algorithm finds out the more optimal MTRR solution for
> current memory type settings.
> Compare against the original algorithm, the new one guarantees
> to find the correct MTRR solution, but doesn't guarantee to
> find the most optimal MTRR solution.
> 
> Ruiyu Ni (10):
>   UefiCpuPkg/MtrrLib: Correct typo in comments and remove TABs
>   UefiCpuPkg/MtrrLib: Add CacheInvalid enum type to MtrrLib.h
>   UefiCpuPkg/MtrrLib: IsMtrrSupported uses definitions in Msr.h
>   UefiCpuPkg/MtrrLib: GetVariableMtrrCountWorker uses definitions in
>     Msr.h
>   UefiCpuPkg/MtrrLib: Add MtrrLib prefix to ProgramFixedMtrr
>   UefiCpuPkg/MtrrLib: Add MtrrLib prefix to several internal functions
>   UefiCpuPkg/MtrrLib: MtrrLibInitializeMtrrMask() uses definitions in
>     CpuId.h
>   UefiCpuPkg/MtrrLib: Use a better algorithm to calculate MTRR
>   UefiCpuPkg/MtrrLib: Refine MtrrGetMemoryAttributeByAddressWorker
>   UefiCpuPkg/MtrrLib: All functions use definitions in Msr.h
> 
>  UefiCpuPkg/Include/Library/MtrrLib.h |   17 +-
>  UefiCpuPkg/Library/MtrrLib/MtrrLib.c | 1838 ++++++++++++++++++++--------------
>  2 files changed, 1068 insertions(+), 787 deletions(-)
> 

This series seems to trigger a number of build failures with GCC:

UefiCpuPkg/Library/MtrrLib/MtrrLib.c: In function 'MtrrSetMemoryAttributeWorker':
UefiCpuPkg/Library/MtrrLib/MtrrLib.c:2051:90: error: suggest parentheses around arithmetic in operand of '|' [-Werror=parentheses]
         VariableSettings->Mtrr[Index].Mask = (~(OriginalVariableMtrr[Index].Length - 1)) & MtrrValidAddressMask | BIT11;
                                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

UefiCpuPkg/Library/MtrrLib/MtrrLib.c: In function 'MtrrLibGetMtrrNumber':
UefiCpuPkg/Library/MtrrLib/MtrrLib.c:945:24: error: 'Length' may be used uninitialized in this function [-Werror=maybe-uninitialized]
   LeastRightMtrrNumber = MtrrLibGetPositiveMtrrNumber (BaseAddress, Length, Alignment0);
   ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

UefiCpuPkg/Library/MtrrLib/MtrrLib.c:927:17: error: 'BaseAddress' may be used uninitialized in this function [-Werror=maybe-uninitialized]
     BaseAddress += BaseAlignment;
     ~~~~~~~~~~~~^~~~~~~~~~~~~~~~

UefiCpuPkg/Library/MtrrLib/MtrrLib.c: In function 'MtrrLibSetMemoryType':
UefiCpuPkg/Library/MtrrLib/MtrrLib.c:1430:6: error: 'LengthRight' may be used uninitialized in this function [-Werror=maybe-uninitialized]
   if (LengthRight == 0) {
      ^

UefiCpuPkg/Library/MtrrLib/MtrrLib.c:1444:31: error: 'LengthLeft' may be used uninitialized in this function [-Werror=maybe-uninitialized]
     Ranges[StartIndex].Length = LengthLeft;
     ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~

UefiCpuPkg/Library/MtrrLib/MtrrLib.c: In function 'MtrrSetMemoryAttributeWorker':
UefiCpuPkg/Library/MtrrLib/MtrrLib.c:2085:3: error: 'OriginalVariableMtrrCount' may be used uninitialized in this function [-Werror=maybe-uninitialized]
   for (Index = 0; Index < OriginalVariableMtrrCount; Index++) {
   ^~~

UefiCpuPkg/Library/MtrrLib/MtrrLib.c:1833:30: error: 'VariableSettings' may be used uninitialized in this function [-Werror=maybe-uninitialized]
   MTRR_VARIABLE_SETTINGS    *VariableSettings;
                              ^~~~~~~~~~~~~~~~

UefiCpuPkg/Library/MtrrLib/MtrrLib.c:2105:10: error: 'Status' may be used uninitialized in this function [-Werror=maybe-uninitialized]
   return Status;
          ^~~~~~
cc1: all warnings being treated as errors
GNUmakefile:328: recipe for target 'Build/OvmfIa32/DEBUG_GCC49/IA32/UefiCpuPkg/Library/MtrrLib/MtrrLib/OUTPUT/MtrrLib.obj' failed
make: *** [Build/OvmfIa32/DEBUG_GCC49/IA32/UefiCpuPkg/Library/MtrrLib/MtrrLib/OUTPUT/MtrrLib.obj] Error 1

Thanks
Laszlo
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Re: [edk2] [PATCH 00/10] Use a better algorithm to calculate MTRR
Posted by Ni, Ruiyu 7 years ago 
Just fixed the build failure. sorry about that.

Regards,
Ray

>-----Original Message-----
>From: Laszlo Ersek [mailto:lersek@redhat.com]
>Sent: Friday, March 31, 2017 5:11 PM
>To: Ni, Ruiyu <ruiyu.ni@intel.com>; edk2-devel@lists.01.org
>Subject: Re: [edk2] [PATCH 00/10] Use a better algorithm to calculate MTRR
>
>On 03/29/17 05:03, Ruiyu Ni wrote:
>> The new algorithm finds out the more optimal MTRR solution for
>> current memory type settings.
>> Compare against the original algorithm, the new one guarantees
>> to find the correct MTRR solution, but doesn't guarantee to
>> find the most optimal MTRR solution.
>>
>> Ruiyu Ni (10):
>>   UefiCpuPkg/MtrrLib: Correct typo in comments and remove TABs
>>   UefiCpuPkg/MtrrLib: Add CacheInvalid enum type to MtrrLib.h
>>   UefiCpuPkg/MtrrLib: IsMtrrSupported uses definitions in Msr.h
>>   UefiCpuPkg/MtrrLib: GetVariableMtrrCountWorker uses definitions in
>>     Msr.h
>>   UefiCpuPkg/MtrrLib: Add MtrrLib prefix to ProgramFixedMtrr
>>   UefiCpuPkg/MtrrLib: Add MtrrLib prefix to several internal functions
>>   UefiCpuPkg/MtrrLib: MtrrLibInitializeMtrrMask() uses definitions in
>>     CpuId.h
>>   UefiCpuPkg/MtrrLib: Use a better algorithm to calculate MTRR
>>   UefiCpuPkg/MtrrLib: Refine MtrrGetMemoryAttributeByAddressWorker
>>   UefiCpuPkg/MtrrLib: All functions use definitions in Msr.h
>>
>>  UefiCpuPkg/Include/Library/MtrrLib.h |   17 +-
>>  UefiCpuPkg/Library/MtrrLib/MtrrLib.c | 1838 ++++++++++++++++++++--------------
>>  2 files changed, 1068 insertions(+), 787 deletions(-)
>>
>
>This series seems to trigger a number of build failures with GCC:
>
>UefiCpuPkg/Library/MtrrLib/MtrrLib.c: In function 'MtrrSetMemoryAttributeWorker':
>UefiCpuPkg/Library/MtrrLib/MtrrLib.c:2051:90: error: suggest parentheses around arithmetic in operand of '|'
>[-Werror=parentheses]
>         VariableSettings->Mtrr[Index].Mask = (~(OriginalVariableMtrr[Index].Length - 1)) & MtrrValidAddressMask |
>BIT11;
>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
>
>UefiCpuPkg/Library/MtrrLib/MtrrLib.c: In function 'MtrrLibGetMtrrNumber':
>UefiCpuPkg/Library/MtrrLib/MtrrLib.c:945:24: error: 'Length' may be used uninitialized in this function
>[-Werror=maybe-uninitialized]
>   LeastRightMtrrNumber = MtrrLibGetPositiveMtrrNumber (BaseAddress, Length, Alignment0);
>   ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>UefiCpuPkg/Library/MtrrLib/MtrrLib.c:927:17: error: 'BaseAddress' may be used uninitialized in this function
>[-Werror=maybe-uninitialized]
>     BaseAddress += BaseAlignment;
>     ~~~~~~~~~~~~^~~~~~~~~~~~~~~~
>
>UefiCpuPkg/Library/MtrrLib/MtrrLib.c: In function 'MtrrLibSetMemoryType':
>UefiCpuPkg/Library/MtrrLib/MtrrLib.c:1430:6: error: 'LengthRight' may be used uninitialized in this function
>[-Werror=maybe-uninitialized]
>   if (LengthRight == 0) {
>      ^
>
>UefiCpuPkg/Library/MtrrLib/MtrrLib.c:1444:31: error: 'LengthLeft' may be used uninitialized in this function
>[-Werror=maybe-uninitialized]
>     Ranges[StartIndex].Length = LengthLeft;
>     ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
>
>UefiCpuPkg/Library/MtrrLib/MtrrLib.c: In function 'MtrrSetMemoryAttributeWorker':
>UefiCpuPkg/Library/MtrrLib/MtrrLib.c:2085:3: error: 'OriginalVariableMtrrCount' may be used uninitialized in this function
>[-Werror=maybe-uninitialized]
>   for (Index = 0; Index < OriginalVariableMtrrCount; Index++) {
>   ^~~
>
>UefiCpuPkg/Library/MtrrLib/MtrrLib.c:1833:30: error: 'VariableSettings' may be used uninitialized in this function
>[-Werror=maybe-uninitialized]
>   MTRR_VARIABLE_SETTINGS    *VariableSettings;
>                              ^~~~~~~~~~~~~~~~
>
>UefiCpuPkg/Library/MtrrLib/MtrrLib.c:2105:10: error: 'Status' may be used uninitialized in this function
>[-Werror=maybe-uninitialized]
>   return Status;
>          ^~~~~~
>cc1: all warnings being treated as errors
>GNUmakefile:328: recipe for target
>'Build/OvmfIa32/DEBUG_GCC49/IA32/UefiCpuPkg/Library/MtrrLib/MtrrLib/OUTPUT/MtrrLib.obj' failed
>make: *** [Build/OvmfIa32/DEBUG_GCC49/IA32/UefiCpuPkg/Library/MtrrLib/MtrrLib/OUTPUT/MtrrLib.obj] Error 1
>
>Thanks
>Laszlo
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Re: [edk2] [PATCH 00/10] Use a better algorithm to calculate MTRR
Posted by Laszlo Ersek 7 years ago 
On 03/31/17 16:25, Ni, Ruiyu wrote:
> Just fixed the build failure. sorry about that.

No problem -- I wasn't annoyed or anything (such breakages are
unavoidable without a centralized build farm, as no developer can
test-build the tree with all the supported toolchains), I just wanted to
report it.

Thank you for the prompt action!
Laszlo

>> -----Original Message-----
>> From: Laszlo Ersek [mailto:lersek@redhat.com]
>> Sent: Friday, March 31, 2017 5:11 PM
>> To: Ni, Ruiyu <ruiyu.ni@intel.com>; edk2-devel@lists.01.org
>> Subject: Re: [edk2] [PATCH 00/10] Use a better algorithm to calculate MTRR
>>
>> On 03/29/17 05:03, Ruiyu Ni wrote:
>>> The new algorithm finds out the more optimal MTRR solution for
>>> current memory type settings.
>>> Compare against the original algorithm, the new one guarantees
>>> to find the correct MTRR solution, but doesn't guarantee to
>>> find the most optimal MTRR solution.
>>>
>>> Ruiyu Ni (10):
>>>   UefiCpuPkg/MtrrLib: Correct typo in comments and remove TABs
>>>   UefiCpuPkg/MtrrLib: Add CacheInvalid enum type to MtrrLib.h
>>>   UefiCpuPkg/MtrrLib: IsMtrrSupported uses definitions in Msr.h
>>>   UefiCpuPkg/MtrrLib: GetVariableMtrrCountWorker uses definitions in
>>>     Msr.h
>>>   UefiCpuPkg/MtrrLib: Add MtrrLib prefix to ProgramFixedMtrr
>>>   UefiCpuPkg/MtrrLib: Add MtrrLib prefix to several internal functions
>>>   UefiCpuPkg/MtrrLib: MtrrLibInitializeMtrrMask() uses definitions in
>>>     CpuId.h
>>>   UefiCpuPkg/MtrrLib: Use a better algorithm to calculate MTRR
>>>   UefiCpuPkg/MtrrLib: Refine MtrrGetMemoryAttributeByAddressWorker
>>>   UefiCpuPkg/MtrrLib: All functions use definitions in Msr.h
>>>
>>>  UefiCpuPkg/Include/Library/MtrrLib.h |   17 +-
>>>  UefiCpuPkg/Library/MtrrLib/MtrrLib.c | 1838 ++++++++++++++++++++--------------
>>>  2 files changed, 1068 insertions(+), 787 deletions(-)
>>>
>>
>> This series seems to trigger a number of build failures with GCC:
>>
>> UefiCpuPkg/Library/MtrrLib/MtrrLib.c: In function 'MtrrSetMemoryAttributeWorker':
>> UefiCpuPkg/Library/MtrrLib/MtrrLib.c:2051:90: error: suggest parentheses around arithmetic in operand of '|'
>> [-Werror=parentheses]
>>         VariableSettings->Mtrr[Index].Mask = (~(OriginalVariableMtrr[Index].Length - 1)) & MtrrValidAddressMask |
>> BIT11;
>>
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
>>
>> UefiCpuPkg/Library/MtrrLib/MtrrLib.c: In function 'MtrrLibGetMtrrNumber':
>> UefiCpuPkg/Library/MtrrLib/MtrrLib.c:945:24: error: 'Length' may be used uninitialized in this function
>> [-Werror=maybe-uninitialized]
>>   LeastRightMtrrNumber = MtrrLibGetPositiveMtrrNumber (BaseAddress, Length, Alignment0);
>>   ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> UefiCpuPkg/Library/MtrrLib/MtrrLib.c:927:17: error: 'BaseAddress' may be used uninitialized in this function
>> [-Werror=maybe-uninitialized]
>>     BaseAddress += BaseAlignment;
>>     ~~~~~~~~~~~~^~~~~~~~~~~~~~~~
>>
>> UefiCpuPkg/Library/MtrrLib/MtrrLib.c: In function 'MtrrLibSetMemoryType':
>> UefiCpuPkg/Library/MtrrLib/MtrrLib.c:1430:6: error: 'LengthRight' may be used uninitialized in this function
>> [-Werror=maybe-uninitialized]
>>   if (LengthRight == 0) {
>>      ^
>>
>> UefiCpuPkg/Library/MtrrLib/MtrrLib.c:1444:31: error: 'LengthLeft' may be used uninitialized in this function
>> [-Werror=maybe-uninitialized]
>>     Ranges[StartIndex].Length = LengthLeft;
>>     ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
>>
>> UefiCpuPkg/Library/MtrrLib/MtrrLib.c: In function 'MtrrSetMemoryAttributeWorker':
>> UefiCpuPkg/Library/MtrrLib/MtrrLib.c:2085:3: error: 'OriginalVariableMtrrCount' may be used uninitialized in this function
>> [-Werror=maybe-uninitialized]
>>   for (Index = 0; Index < OriginalVariableMtrrCount; Index++) {
>>   ^~~
>>
>> UefiCpuPkg/Library/MtrrLib/MtrrLib.c:1833:30: error: 'VariableSettings' may be used uninitialized in this function
>> [-Werror=maybe-uninitialized]
>>   MTRR_VARIABLE_SETTINGS    *VariableSettings;
>>                              ^~~~~~~~~~~~~~~~
>>
>> UefiCpuPkg/Library/MtrrLib/MtrrLib.c:2105:10: error: 'Status' may be used uninitialized in this function
>> [-Werror=maybe-uninitialized]
>>   return Status;
>>          ^~~~~~
>> cc1: all warnings being treated as errors
>> GNUmakefile:328: recipe for target
>> 'Build/OvmfIa32/DEBUG_GCC49/IA32/UefiCpuPkg/Library/MtrrLib/MtrrLib/OUTPUT/MtrrLib.obj' failed
>> make: *** [Build/OvmfIa32/DEBUG_GCC49/IA32/UefiCpuPkg/Library/MtrrLib/MtrrLib/OUTPUT/MtrrLib.obj] Error 1
>>
>> Thanks
>> Laszlo

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