Re: [PATCH v2 for-4.18?] x86: support data operand independent timing mode

[Julien Grall <julien@xxxxxxx>]

Hi,

On 12/09/2023 07:21, Jan Beulich wrote:
> On 12.09.2023 02:48, Henry Wang wrote:
> > > On Sep 11, 2023, at 23:01, Jan Beulich <jbeulich@xxxxxxxx> wrote:
> > > --- a/docs/misc/xen-command-line.pandoc
> > > +++ b/docs/misc/xen-command-line.pandoc
> > > @@ -788,6 +788,14 @@ Specify the size of the console debug tr
> > > additionally a trace buffer of the specified size is allocated per cpu.
> > > The debug trace feature is only enabled in debugging builds of Xen.
> > >
> > > +### dit (x86)
> > > +> `= <boolean>`
> > > +
> > > +> Default: `CONFIG_DIT_DEFAULT`
> > > +
> > > +Specify whether Xen and guests should operate in Data Independent Timing
> > > +mode.
> > > +
> > Since a new cmdline interface is added, I am wondering would such
> > addtion deserves a CHANGELOG entry?
> I'm open to opinions, albeit not so much because of the added command line
> option.
I think it would make sense to add an entry to say the user can now 
decide the operation mode for DIT.
Cheers,

--
Julien Grall