[PATCH v2 0/3] powerpc/pseries: IPI doorbell improvements

[Cédric Le Goater]

On 6/30/20 1:50 PM, Nicholas Piggin wrote:
> Since v1:
> - Fixed SMP compile error.
> - Fixed EPAPR / KVM_GUEST breakage.
> - Expanded patch 3 changelog a bit.
> 
> Thanks,
> Nick

I gave the patchset a try on KVM guests (P9 and P8) and PowerVM LPARs (P9).

Looks good.  

Tested-by: Cédric Le Goater <clg at kaod.org>

Thanks,

C. 

> 
> Nicholas Piggin (3):
>   powerpc: inline doorbell sending functions
>   powerpc/pseries: Use doorbells even if XIVE is available
>   powerpc/pseries: Add KVM guest doorbell restrictions
> 
>  arch/powerpc/include/asm/dbell.h     | 63 ++++++++++++++++++++++++++--
>  arch/powerpc/include/asm/firmware.h  |  6 +++
>  arch/powerpc/include/asm/kvm_para.h  | 26 ++----------
>  arch/powerpc/kernel/Makefile         |  5 +--
>  arch/powerpc/kernel/dbell.c          | 55 ------------------------
>  arch/powerpc/kernel/firmware.c       | 19 +++++++++
>  arch/powerpc/platforms/pseries/smp.c | 62 +++++++++++++++++++--------
>  7 files changed, 134 insertions(+), 102 deletions(-)
>