Messages in this thread | | | Subject | Re: [PATCH] Doc: admin-guide: Add entry for kvm_cma_resv_ratio kernel param | From | Randy Dunlap <> | Date | Tue, 15 Sep 2020 23:18:52 -0700 |
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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.
> + 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.
> 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.
thanks. -- ~Randy
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