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

2019-02-13 Thread Will Deacon
o: Zhang, Lei > > Cc: 'Mark Rutland'; 'Catalin Marinas'; 'James Morse'; > > 'linux-kernel@vger.kernel.org'; > > 'linux-arm-ker...@lists.infradead.org' > > Subject: Re: [PATCH v3 0/1] arm64: Add workaround for Fujitsu A64FX > > erratum 010001 > > > So I guess we

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

2019-02-05 Thread Zhang, Lei
x-kernel@vger.kernel.org'; > 'linux-arm-ker...@lists.infradead.org' > Subject: Re: [PATCH v3 0/1] arm64: Add workaround for Fujitsu A64FX > erratum 010001 > So I guess we should boot with NFD1 clear, and then set it only when we > realise we're not on an A64FX? In my patch, I do simi

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

2019-02-05 Thread Zhang, Lei
.com'; > 'james.mo...@arm.com' > Subject: Re: [PATCH v3 0/1] arm64: Add workaround for Fujitsu A64FX > erratum 010001 > > Could you please copy the whole description from the cover letter to the > actual patch and only send one email (full description as in here > together with the

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

2019-02-01 Thread Will Deacon
Zhang, Lei/張 雷 > > Cc: 'Mark Rutland'; 'Catalin Marinas'; 'will.dea...@arm.com'; > > 'linux-kernel@vger.kernel.org'; > > 'linux-arm-ker...@lists.infradead.org' > > Subject: Re: [PATCH v3 0/1] arm64: Add workaround for Fujitsu A64FX > > erratum 01000

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

2019-01-31 Thread Zhang, Lei
com'; > 'linux-kernel@vger.kernel.org'; > 'linux-arm-ker...@lists.infradead.org' > 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") ? > >

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

2019-01-30 Thread James Morse
Hi! On 01/29/2019 12:29 PM, Zhang, Lei wrote: On some variants of the Fujitsu-A64FX cores ver(1.0, 1.1), memory accesses may cause undefined fault (Data abort, DFSC=0b11). This problem will be fixed by next version of Fujitsu-A64FX. This fault occurs under a specific hardware condition

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

2019-01-30 Thread James Morse
Hi guys, On 01/29/2019 06:10 PM, Catalin Marinas wrote: Could you please copy the whole description from the cover letter to the actual patch and only send one email (full description as in here together with the patch)? If we commit this to the kernel, it would be useful to have the

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

2019-01-29 Thread Catalin Marinas
Hi, Could you please copy the whole description from the cover letter to the actual patch and only send one email (full description as in here together with the patch)? If we commit this to the kernel, it would be useful to have the information in the log for reference later on. More comments

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

2019-01-29 Thread Zhang, Lei
On some variants of the Fujitsu-A64FX cores ver(1.0, 1.1), memory accesses may cause undefined fault (Data abort, DFSC=0b11). This problem will be fixed by next version of Fujitsu-A64FX. This fault occurs under a specific hardware condition when a load/store instruction perform an address