[RFC PATCH 1/6] powerpc: Add security feature flags for Spectre/Meltdown

[Michael Ellerman]

Daniel Axtens <dja at axtens.net> writes:
> Michael Ellerman <mpe at ellerman.id.au> writes:
>> diff --git a/arch/powerpc/include/asm/security_features.h b/arch/powerpc/include/asm/security_features.h
>> new file mode 100644
>> index 000000000000..3b690de8b0e8
>> --- /dev/null
>> +++ b/arch/powerpc/include/asm/security_features.h
>> @@ -0,0 +1,65 @@
...
>> +// Features indicating support for Spectre/Meltdown mitigations
>> +
>> +// The L1-D cache can be flushed with ori r30,r30,0
>> +#define SEC_FTR_L1D_FLUSH_ORI30		0x0000000000000001ull
>> +
>> +// The L1-D cache can be flushed with mtspr 882,r0 (aka SPRN_TRIG2ull
> This looks like some sort of search-replace gone wrong? ------------^^^^

Sure is! Oops.

Thanks for reviewing.

cheers