[PATCH v4 12/15] KVM: arm64: nv: Add emulation for ERETAx instructions

[Zenghui Yu]

On 2024/4/23 17:22, Jon Hunter wrote:
> 
> Some of our builders currently have an older version of GCC (v6) and
> after this change I am seeing ...
> 
>    CC      arch/arm64/kvm/pauth.o
> /tmp/ccohst0v.s: Assembler messages:
> /tmp/ccohst0v.s:1177: Error: unknown architectural extension `pauth'
> /tmp/ccohst0v.s:1177: Error: unknown mnemonic `pacga' -- `pacga x21,x22,x0'
> /local/workdir/tegra/mlt-linux_next/kernel/scripts/Makefile.build:244: 
> recipe for target 'arch/arm64/kvm/pauth.o' failed
> make[5]: *** [arch/arm64/kvm/pauth.o] Error 1
> /local/workdir/tegra/mlt-linux_next/kernel/scripts/Makefile.build:485: 
> recipe for target 'arch/arm64/kvm' failed
> make[4]: *** [arch/arm64/kvm] Error 2
> /local/workdir/tegra/mlt-linux_next/kernel/scripts/Makefile.build:485: 
> recipe for target 'arch/arm64' failed
> make[3]: *** [arch/arm64] Error 2
> 
> 
> I know this is pretty old now and I am trying to get these builders
> updated. However, the kernel docs still show that GCC v5.1 is
> supported [0].

Was just looking at the discussion [1] ;-) . FYI there is already a
patch on the list [2] which should be merged soon.

[1] 
https://lore.kernel.org/r/CA+G9fYsCL5j-9JzqNH5X03kikL=O+BaCQQ8Ao3ADQvxDuZvqcg@mail.gmail.com
[2] https://lore.kernel.org/r/20240422224849.2238222-1-maz@kernel.org

Zenghui