From aed26eebf5808168bf6e78231db51df86d94461f Mon Sep 17 00:00:00 2001 From: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com> Date: Mon, 21 Sep 2020 14:32:20 +0530 Subject: [PATCH] Doc: admin-guide: Add entry for kvm_cma_resv_ratio kernel param 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: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com> Link: https://lore.kernel.org/r/20200921090220.14981-1-sathnaga@linux.vnet.ibm.com Signed-off-by: Jonathan Corbet <corbet@lwn.net> --- Documentation/admin-guide/kernel-parameters.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index d81d1d8414fb1..b1e3d63cdc151 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -2261,6 +2261,14 @@ [KVM,ARM] Allow use of GICv4 for direct injection of LPIs. + kvm_cma_resv_ratio=n [PPC] + Reserves given percentage from system memory area for + contiguous memory allocation for KVM hash pagetable + allocation. + By default it reserves 5% of total system memory. + Format: <integer> + Default: 5 + kvm-intel.ept= [KVM,Intel] Disable extended page tables (virtualized MMU) support on capable Intel chips. Default is 1 (enabled) -- GitLab