[lkml]   [2019]   [Jan]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 1/1] iommu/vt-d: Leave scalable mode default off
On Thu, Jan 24, 2019 at 10:31:32AM +0800, Lu Baolu wrote:
> Commit 765b6a98c1de3 ("iommu/vt-d: Enumerate the scalable
> mode capability") enables VT-d scalable mode if hardware
> advertises the capability. As we will bring up different
> features and use cases to upstream in different patch
> series, it will leave some intermediate kernel versions
> which support partial features. Hence, end user might run
> into problems when they use such kernels on bare metals
> or virtualization environments.
> This leaves scalable mode default off and end users could
> turn it on with "intel-iommu=sm_on" only when they have
> clear ideas about which scalable features are supported
> in the kernel.
> Cc: Liu Yi L <>
> Cc: Jacob Pan <>
> Suggested-by: Ashok Raj <>
> Suggested-by: Kevin Tian <>
> Signed-off-by: Lu Baolu <>

Applied to iommu/fixes, thanks.

 \ /
  Last update: 2019-01-30 17:24    [W:0.068 / U:3.184 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site