Re: [PATCH 0/2] spapr: Fix support of POWER5+ processors

[Cédric Le Goater]

On 1/5/22 10:51, Cédric Le Goater wrote:
> Hello,
>
> Grab the images under :
>
>    
> https://github.com/legoater/qemu-ppc-boot/tree/main/buildroot/qemu_ppc64_pseries_p5p-2021.11-730-g4f325ce788-20220104
>
> and run with :
>
>    qemu-system-ppc64 -M pseries -cpu POWER5+ -m 1G -smp 2 -kernel ./vmlinux -append 
> "root=/dev/sda" -drive file=./rootfs.ext2,if=scsi,index=0,format=raw  -device 
> spapr-vlan,netdev=net0 -netdev user,id=net0 -serial mon:stdio -nographic -nodefaults
>
> CPU 970, 970MP are also well supported.
>
> Virtio devices and USB should be avoided because SLOF would use a
> 'stdbrx' instruction (cpu_to_le64 helper) which is invalid under
> POWER5+ and 970 CPUs. SLOF needs to be compiled with -mcpu=power5 to
> fix this issue.
>
> Thanks,
>
> C.
>
> Cédric Le Goater (2):
>    target/ppc: Add popcntb instruction to POWER5+ processors
>    spapr: Fix support of POWER5+ processors
>
>   hw/ppc/spapr.c        | 10 ++++++----
>   target/ppc/cpu_init.c |  1 +
>   2 files changed, 7 insertions(+), 4 deletions(-)



Applied to ppc7.0.

Thanks,

C.