Re: [Qemu-devel] [PATCH 00/17] ppc: preparing pnv landing

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

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On Mon, Mar 14, 2016 at 05:56:23PM +0100, Cédric Le Goater wrote:
> Hello,
> 
> This is a first mini-serie of patches adding support for new ppc SPRs.
> They were taken from Ben's larger patchset adding the ppc powernv
> platform and they should already be useful for the pseries guest
> migration.
> 
> Initial patches come from :
> 
> 	https://github.com/ozbenh/qemu/commits/powernv
> 
> The changes are mostly due to the rebase on Dave's 2.6 branch:
> 
> 	https://github.com/dgibson/qemu/commits/ppc-for-2.6
> 
> A couple more are bisect and checkpatch fixes and finally some patches
> were merge to reduce the noise.
> 
>       
> 
> The patchset is also available here: 
> 
> 	https://github.com/legoater/qemu/commits/for-2.6
> 
> It was quickly tested with a pseries guest using KVM and TCG.

Hmm.. do these all fix bugs with migration, or only some of them?

The relevance is that things to fix migration should go into 2.6, but
preparation work for powernv that doesn't fix bug shouldn't really be
going in now, after the soft freeze and will need to wait for 2.7.

> 
> Thanks,
> 
> C.
> 
> 
> Benjamin Herrenschmidt (17):
>   ppc: Update SPR definitions
>   ppc: Add macros to register hypervisor mode SPRs
>   ppc: Add a bunch of hypervisor SPRs to Book3s
>   ppc: Add number of threads per core to the processor definition
>   ppc: Fix hreg_store_msr() so that non-HV mode cannot alter MSR:HV
>   ppc: Create cpu_ppc_set_papr() helper
>   ppc: Better figure out if processor has HV mode
>   ppc: Add placeholder SPRs for DPDES and DHDES on P8
>   ppc: SPURR & PURR are HV writeable and privileged
>   ppc: Add dummy SPR_IC for POWER8
>   ppc: Initialize AMOR in PAPR mode
>   ppc: Fix writing to AMR/UAMOR
>   ppc: Add POWER8 IAMR register
>   ppc: Add dummy write to VTB
>   ppc: Add dummy POWER8 MPPR register
>   ppc: Add dummy CIABR SPR
>   ppc: A couple more dummy POWER8 Book4 regs
> 
>  hw/ppc/spapr.c              |  11 +-
>  target-ppc/cpu-qom.h        |   1 +
>  target-ppc/cpu.h            |  68 ++++++-
>  target-ppc/excp_helper.c    |   8 +-
>  target-ppc/helper_regs.h    |   4 +-
>  target-ppc/translate.c      |  30 +--
>  target-ppc/translate_init.c | 461 ++++++++++++++++++++++++++++++++++++++++----
>  7 files changed, 510 insertions(+), 73 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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