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Re: [Qemu-devel] [Qemu-ppc] [PATCH v3 00/10] ppc: preparing pnv landing

From: David Gibson
Subject: Re: [Qemu-devel] [Qemu-ppc] [PATCH v3 00/10] ppc: preparing pnv landing
Date: Fri, 15 Apr 2016 12:18:18 +1000
User-agent: Mutt/1.5.24 (2015-08-30)

On Wed, Apr 13, 2016 at 11:15:15AM +0200, Cédric Le Goater wrote:
> On 03/22/2016 12:14 AM, David Gibson wrote:
> > On Mon, Mar 21, 2016 at 01:52:30PM +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 ppc-for-2.6-20160316
> >>
> >> A couple more are bisect and checkpatch fixes and finally some patches
> >> were merge to reduce the noise.
> > 
> > Applied to ppc-for-2.6, thanks.
> Hello David,
> I have identified this next serie of prerequisites for PowerNV that should 
> not need too much discussion. When would be the right time to send them ? 
>       [PATCH 01/77] ppc: Remove MMU_MODEn_SUFFIX definitions
>       [PATCH 02/77] ppc: Use split I/D mmu modes to avoid flushes on
>       [PATCH 03/77] ppc: Do some batching of TCG tlb flushes
>       [PATCH 07/77] ppc: Add a bunch of hypervisor SPRs to Book3s
>       [PATCH 09/77] ppc: Fix hreg_store_msr() so that non-HV mode cannot
>       [PATCH 10/77] ppc: Fix rfi/rfid/hrfi/... emulation
>       [PATCH 12/77] ppc: Better figure out if processor has HV mode
>       [PATCH 13/77] ppc: tlbie, tlbia and tlbisync are HV only
>       [PATCH 14/77] ppc: Change 'invalid' bit mask of tlbiel and tlbie
>       [PATCH 15/77] ppc: Fix sign extension issue in mtmsr(d) emulation
>       [PATCH 16/77] ppc: Get out of emulation on SMT "OR" ops
>       [PATCH 17/77] ppc: Add PPC_64H instruction flag to POWER7 and POWER8
> The exception model changes are rather invasive but they are complex so 
> I will keep them for later and I would like to try getting the xics changes 
> out of the way first. They are a pain to maintain out of the mainline tree. 
> Could we follow on with xics then ? 

So, obviously none of these will be merged before 2.7.  That said,
I've already started a ppc-for-2.7 tree, so I'm ok with posting the
next batch for review before mainline 2.7 opens.  I can't promise I'll
be able to review them quickly, but I'm ok for you to post them any
time, really.

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_!

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