Re: [Qemu-devel] [PATCH 00/10] ppc/pnv: add XIVE support for KVM guests

[David Gibson <david@gibson.dropbear.id.au>]

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On Sun, Jun 30, 2019 at 10:45:51PM +0200, Cédric Le Goater wrote:
> Hello,
> 
> The QEMU PowerNV machine emulates a baremetal OpenPOWER system and
> acts as an hypervisor (L0). Supporting emulation of KVM to run guests
> (L1) requires a few more extensions, among which support for the XIVE
> interrupt controller on POWER9 processor. 
> 
> The following changes fix some parts of the XIVE model and provide
> support for escalations and resend. This mechanism is used by KVM to
> kick a vCPU when it is not dispatched on a HW thread.
> 
> A series from Suraj adding guest support in the Radix MMU model of the
> QEMU PowerNV machine is still required and will be send later. The
> whole patchset can be found under :
> 
>   https://github.com/legoater/qemu/tree/powernv-4.1

The rest of this series is essentially a new feature, and so will have
to wait until 4.2 now we're in soft freeze.

> 
> Thanks,
> 
> C.
> 
> Cédric Le Goater (10):
>   ppc/xive: Force the Physical CAM line value to group mode
>   ppc/xive: Make the PIPR register readonly
>   ppc/pnv: Rework cache watch model of PnvXIVE
>   ppc/xive: Fix TM_PULL_POOL_CTX special operation
>   ppc/xive: Implement TM_PULL_OS_CTX special command
>   ppc/xive: Provide escalation support
>   ppc/xive: Improve 'info pic' support
>   ppc/xive: Extend XiveTCTX with an router object pointer
>   ppc/xive: Synthesize interrupt from the saved IPB in the NVT
>   ppc/pnv: Dump the XIVE NVT table
> 
>  include/hw/ppc/xive.h      |  23 ++-
>  include/hw/ppc/xive_regs.h |  13 ++
>  hw/intc/pnv_xive.c         | 211 +++++++++++++++++++----
>  hw/intc/spapr_xive.c       |   1 -
>  hw/intc/xive.c             | 341 +++++++++++++++++++++++++++++--------
>  hw/ppc/pnv.c               |   2 +-
>  hw/ppc/spapr_irq.c         |   2 +-
>  7 files changed, 479 insertions(+), 114 deletions(-)
> 

-- 
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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