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SubjectRe: [PATCH] Doc: admin-guide: Add entry for kvm_cma_resv_ratio kernel param
Hi Randy,

Thanks for the comments, will send a V2 fixing them.

On Tue, Sep 15, 2020 at 11:18:52PM -0700, Randy Dunlap wrote:
> On 9/15/20 11:11 PM, sathnaga@linux.vnet.ibm.com wrote:
> > From: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
> >
> > Add document entry for kvm_cma_resv_ratio kernel param which
> > is used to alter the KVM contiguous memory allocation percentage
> > for hash pagetable allocation used by hash mode PowerPC KVM guests.
> >
> > Cc: linux-kernel@vger.kernel.org
> > Cc: kvm-ppc@vger.kernel.org
> > Cc: linuxppc-dev@lists.ozlabs.org
> > Cc: Paul Mackerras <paulus@samba.org>
> > Cc: Michael Ellerman <mpe@ellerman.id.au>
> > Cc: Jonathan Corbet <corbet@lwn.net>
> > Signed-off-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
> > ---
> > Documentation/admin-guide/kernel-parameters.txt | 9 +++++++++
> > 1 file changed, 9 insertions(+)
> >
> > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> > index a1068742a6df..9cb126573c71 100644
> > --- a/Documentation/admin-guide/kernel-parameters.txt
> > +++ b/Documentation/admin-guide/kernel-parameters.txt
> > @@ -599,6 +599,15 @@
> > altogether. For more information, see
> > include/linux/dma-contiguous.h
> >
> > + kvm_cma_resv_ratio=n
> > + [PPC]
>
> You can put [PPC] on the line above.
>
sure
> > + Reserves given percentage from system memory area for
> > + contiguous memory allocation for KVM hash pagetable
> > + allocation.
> > + Bydefault it reserves 5% of total system memory.
>
> By default
>
> > + Format: <integer>
> > + Default: 5
> > +
>
> and please use tabs for indentation, not all spaces.
>
sure
> > cmo_free_hint= [PPC] Format: { yes | no }
> > Specify whether pages are marked as being inactive
> > when they are freed. This is used in CMO environments
> >
>
> Entries in kernel-parameters.txt should be sorted into dictionary order,
> so please put that with the other kvm parameters.
>
sure.
> thanks.
> --
> ~Randy
>

Thanks!
-Satheesh.

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