On 9/15/20 11:11 PM, sathnaga@xxxxxxxxxxxxxxxxxx wrote:
> From: Satheesh Rajendran <sathnaga@xxxxxxxxxxxxxxxxxx>
>
> 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@xxxxxxxxxxxxxxx
> Cc: kvm-ppc@xxxxxxxxxxxxxxx
> Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
> Cc: Paul Mackerras <paulus@xxxxxxxxx>
> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
> Cc: Jonathan Corbet <corbet@xxxxxxx>
> Signed-off-by: Satheesh Rajendran <sathnaga@xxxxxxxxxxxxxxxxxx>
> ---
> 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
