On Fri, Feb 01, 2019 at 05:53:50AM +0000, Zhang, Lei wrote: > > -----Original Message----- > > From: linux-arm-kernel > > [mailto:[email protected]] On Behalf Of > > James Morse > > Sent: Thursday, January 31, 2019 12:00 AM > > To: Zhang, Lei/張 雷 > > Cc: 'Mark Rutland'; 'Catalin Marinas'; '[email protected]'; > > '[email protected]'; > > '[email protected]' > > 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.
So I guess we should boot with NFD1 clear, and then set it only when we realise we're not on an A64FX? Will
