Re: [Qemu-devel] [QEMU-PPC] [PATCH V3 00/10] target/ppc: Implement POWER9 pseries tcg legacy support

[David Gibson]

On Mon, Feb 20, 2017 at 03:04:28PM +1100, Suraj Jitindar Singh wrote:
> This is V3 of the patch series to implement tcg emulation support for a
> POWER9 cpu model for the pseries machine type running a legacy kernel.
> That is a kernel which doesn't use the new radix mmu mode or the new hash
> mmu mode with segment tables.
> 
> To use a POWER9 cpu provide the command line option "-cpu POWER9".
> 
> This series attempts to avoid precluding KVM-HV support for the POWER9
> cpu model but doesn't attempt to support KVM-PR or the powernv machine
> for the POWER9 cpu model as these aren't currently supported or
> implemented and further code changes will be required in the event these
> are implemented.
> 
> This series is used as a base to implement radix support.

This is looking pretty good.  Main thing is it will need some rework
to rebase on my HPT cleanup as discussed.  I've made a few other
comments, but they're all small things.
> 
> The changes from V2 are as follows:
> 
>  - Only migrate the partition table entry on non-zero value
>  - Change how register generation works to simplify adding/removing
>    registers
>  - Rename mmu.h -> mmu-book3s-v3.h
>  - Error report and abort on attempt to use segment tables
> 
> Suraj Jitindar Singh (10):
>   target/ppc/POWER9: Add ISAv3.00 MMU definition
>   target/ppc: Fix LPCR DPFD mask define
>   target/ppc/POWER9: Adapt LPCR handling for POWER9
>   target/ppc/POWER9: Direct all instr and data storage interrupts to the
>     hypv
>   target/ppc: Add patb_entry to sPAPRMachineState
>   target/ppc: Don't gen an SDR1 on POWER9 and rework register creation
>   target/ppc/POWER9: Add POWER9 mmu fault handler
>   target/ppc/POWER9: Add POWER9 pa-features definition
>   target/ppc/POWER9: Add cpu_has_work function for POWER9
>   hw/ppc/spapr: Add POWER9 to pseries cpu models
> 
>  hw/ppc/spapr.c              |  47 ++++++
>  hw/ppc/spapr_cpu_core.c     |   3 +
>  include/hw/ppc/spapr.h      |   1 +
>  target/ppc/cpu-qom.h        |   5 +-
>  target/ppc/cpu.h            |  21 ++-
>  target/ppc/mmu-book3s-v3.h  |  50 ++++++
>  target/ppc/mmu-hash64.c     |  53 +++++-
>  target/ppc/mmu-hash64.h     |   4 +-
>  target/ppc/mmu_helper.c     |  44 ++++-
>  target/ppc/translate.c      |   7 +-
>  target/ppc/translate_init.c | 391 
> ++++++++++++++++++++++++++++++--------------
>  11 files changed, 485 insertions(+), 141 deletions(-)
>  create mode 100644 target/ppc/mmu-book3s-v3.h
> 

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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