On Wed, 7 Sep 2022 16:50:38 +1000, Michael Ellerman wrote:
> As reported[1] by Nathan, the recently added plpks driver will crash if
> it's built into the kernel and booted on a non-pseries machine, eg
> powernv:
>
> kernel BUG at arch/powerpc/kernel/syscall.c:39!
> Oops: Exception in kernel mode, sig: 5 [#1]
> LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA PowerNV
> ...
> NIP system_call_exception+0x90/0x3d0
> LR system_call_common+0xec/0x250
> Call Trace:
> 0xc0000000035c3e10 (unreliable)
> system_call_common+0xec/0x250
> --- interrupt: c00 at plpar_hcall+0x38/0x60
> NIP: c0000000000e4300 LR: c00000000202945c CTR: 0000000000000000
> REGS: c0000000035c3e80 TRAP: 0c00 Not tainted (6.0.0-rc4)
> MSR: 9000000002009033 <SF,HV,VEC,EE,ME,IR,DR,RI,LE> CR: 28000284 XER:
> 00000000
> ...
> NIP plpar_hcall+0x38/0x60
> LR pseries_plpks_init+0x64/0x23c
> --- interrupt: c00
>
> [...]
Applied to powerpc/fixes.
[1/1] powerpc/pseries: Fix plpks crash on non-pseries
https://git.kernel.org/powerpc/c/a66de5283e16602b74658289360505ceeb308c90
cheers
