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Re: [RFC PATCH 1/1] ppc/spapr: Add hotplugged flag on DIMM LMBs on drmem
From: |
Leonardo Bras |
Subject: |
Re: [RFC PATCH 1/1] ppc/spapr: Add hotplugged flag on DIMM LMBs on drmem_v2 |
Date: |
Thu, 02 Apr 2020 14:11:12 -0300 |
User-agent: |
Evolution 3.34.4 (3.34.4-1.fc31) |
Hello Bharata, thank you for reviewing and testing!
During review of this new flag, it was suggested to change it's name to
a better one (on platform's viewpoint).
So I will have to change the flag name from SPAPR_LMB_FLAGS_HOTPLUGGED
to SPAPR_LMB_FLAGS_HOTREMOVABLE.
Everything should work the same as today.
Best regards,
Leonardo
On Thu, 2020-04-02 at 14:46 +0530, Bharata B Rao wrote:
> On Tue, Mar 10, 2020 at 8:24 AM David Gibson
> <address@hidden> wrote:
> > On Thu, Mar 05, 2020 at 09:22:02PM -0300, Leonardo Bras wrote:
> > > On reboot, all memory that was previously added using object_add and
> > > device_add is placed in this DIMM area.
> > >
> > > The new SPAPR_LMB_FLAGS_HOTPLUGGED flag helps Linux to put this memory in
> > > the correct memory zone, so no unmovable allocations are made there,
> > > allowing the object to be easily hot-removed by device_del and
> > > object_del.
> > >
> > > Signed-off-by: Leonardo Bras <address@hidden>
> > >
> > > ---
> > > The new flag was already proposed on Power Architecture documentation,
> > > and it's waiting for approval.
> > >
> > > I would like to get your comments on this change, but it's still not
> > > ready for being merged.
> >
> > This looks reasonable to me - at the very least it doesn't look like
> > it could do much harm.
>
> Looks good to me, also tested with PowerKVM guests.
>
> Reviewed-by: Bharata B Rao <address@hidden>
>
> Regards,
> Bharata.
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