Re: [edk2-devel] [Patch v4 1/6] UefiCpuPkg/RegisterCpuFeaturesLib: Add "Test Then Write" Macros.

On 08/16/19 05:57, Eric Dong wrote: > 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 >

[edk2-devel] [Patch v4 1/6] UefiCpuPkg/RegisterCpuFeaturesLib: Add "Test Then Write" Macros.

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