RE: [PATCH v3 0/1] arm64: Add workaround for Fujitsu A64FX erratum 010001

[Zhang, Lei]

Hi James,

> -----Original Message-----
> From: linux-arm-kernel
> [mailto:linux-arm-kernel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of
> James Morse
> Sent: Thursday, January 31, 2019 12:00 AM
> To: Zhang, Lei/張 雷
> Cc: 'Mark Rutland'; 'Catalin Marinas'; 'will.deacon@xxxxxxx';
> 'linux-kernel@xxxxxxxxxxxxxxx';
> 'linux-arm-kernel@xxxxxxxxxxxxxxxxxxx'
> Subject: Re: [PATCH v3 0/1] arm64: Add workaround for Fujitsu A64FX
> erratum 010001
> 
> 
> e03e61c3173c ("arm64: kaslr: Set TCR_EL1.NFD1 when
> CONFIG_RANDOMIZE_BASE=y") ?
> 
> So you'd never see it if you disabled CONFIG_RANDOMIZE_BASE?
For security, it is necessary to set CONFIG_RANDOMIZE_BASE=y.

Thanks,
Zhang Lei