Eric:
>-Original Message-
>From: Dong, Eric
>Sent: Friday, August 16, 2019 10:20 AM
>To: Zeng, Star ; devel@edk2.groups.io
>Cc: Ni, Ray ; Laszlo Ersek ; Yao,
>Jiewen ; Gao, Liming ;
>Kinney, Michael D
>Subject: RE: [Patch v3 1/6] UefiCpuPkg/RegisterCpuFeaturesLib: Add "Test
>Then Write"
> -Original Message-
> From: Zeng, Star
> Sent: Friday, August 16, 2019 10:08 AM
> To: Dong, Eric ; devel@edk2.groups.io
> Cc: Ni, Ray ; Laszlo Ersek ; Yao,
> Jiewen ; Gao, Liming ; Kinney,
> Michael D ; Zeng, Star
> Subject: RE: [Patch v3 1/6] UefiCpuPkg/RegisterCpuFeaturesLib: Add
> -Original Message-
> From: Dong, Eric
> Sent: Friday, August 16, 2019 9:27 AM
> To: Zeng, Star ; devel@edk2.groups.io
> Cc: Ni, Ray ; Laszlo Ersek
> Subject: RE: [Patch v3 1/6] UefiCpuPkg/RegisterCpuFeaturesLib: Add "Test
> Then Write" Macros.
>
> > -Original Message-
> >
> -Original Message-
> From: Zeng, Star
> Sent: Friday, August 16, 2019 9:15 AM
> To: Dong, Eric ; devel@edk2.groups.io
> Cc: Ni, Ray ; Laszlo Ersek ; Zeng,
> Star
> Subject: RE: [Patch v3 1/6] UefiCpuPkg/RegisterCpuFeaturesLib: Add "Test
> Then Write" Macros.
>
>
>
> > -Original
> -Original Message-
> From: Dong, Eric
> Sent: Thursday, August 15, 2019 10:51 AM
> To: devel@edk2.groups.io
> Cc: Ni, Ray ; Laszlo Ersek ; Zeng,
> Star
> Subject: [Patch v3 1/6] UefiCpuPkg/RegisterCpuFeaturesLib: Add "Test Then
> Write" Macros.
>
> REF:
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2040
Add below new micros which test the current value before write
the new value. Only write new value when current value not
same as new value.
CPU_REGISTER_TABLE_TEST_THEN_WRITE32
CPU_REGISTER_TABLE_TEST_THEN_WRITE64
