Re: [PATCH] x86: Drop opt_pku entirely

2023-08-07 Thread Henry Wang
> Re: [PATCH] x86: Drop opt_pku entirely Hi Andrew and Jan, Sorry for the possible format issue. >> At which >> point I'm fine with no adjustment to cpuid= doc. And then also >> Acked-by: Jan Beulich > > Thanks. I'll tweak. Acked-by: Henry Wang #CHANGELOG Kind regards, Henry > ~Andrew

Re: [PATCH] x86: Drop opt_pku entirely

2023-08-07 Thread Andrew Cooper
On 07/08/2023 2:34 pm, Jan Beulich wrote: > On 07.08.2023 15:21, Andrew Cooper wrote: >> On 21/06/2023 8:37 am, Jan Beulich wrote: >>> On 20.06.2023 19:47, Andrew Cooper wrote: --- a/docs/misc/xen-command-line.pandoc +++ b/docs/misc/xen-command-line.pandoc @@ -1950,16 +1950,6 @@ for

Re: [PATCH] x86: Drop opt_pku entirely

2023-08-07 Thread Jan Beulich
On 07.08.2023 15:21, Andrew Cooper wrote: > On 21/06/2023 8:37 am, Jan Beulich wrote: >> On 20.06.2023 19:47, Andrew Cooper wrote: >>> --- a/CHANGELOG.md >>> +++ b/CHANGELOG.md >>> @@ -25,6 +25,9 @@ The format is based on [Keep a >>> Changelog](https://keepachangelog.com/en/1.0.0/) >>> - Add sup

Re: [PATCH] x86: Drop opt_pku entirely

2023-08-07 Thread Andrew Cooper
On 21/06/2023 8:37 am, Jan Beulich wrote: > On 20.06.2023 19:47, Andrew Cooper wrote: >> --- a/CHANGELOG.md >> +++ b/CHANGELOG.md >> @@ -25,6 +25,9 @@ The format is based on [Keep a >> Changelog](https://keepachangelog.com/en/1.0.0/) >> - Add support for AVX512-FP16 on x86. >> - On Arm, Xen su

Re: [PATCH] x86: Drop opt_pku entirely

2023-06-21 Thread Jan Beulich
On 20.06.2023 19:47, Andrew Cooper wrote: > --- a/CHANGELOG.md > +++ b/CHANGELOG.md > @@ -25,6 +25,9 @@ The format is based on [Keep a > Changelog](https://keepachangelog.com/en/1.0.0/) > - Add support for AVX512-FP16 on x86. > - On Arm, Xen supports guests running SVE/SVE2 instructions. (Tech

[PATCH] x86: Drop opt_pku entirely

2023-06-20 Thread Andrew Cooper
This option is particularly dubious as Xen does not use Protection Keys, owing to the sharing of pagetables with PV guests. All this option does is hide PKU by default from HVM guests, and is therefore redundant with the more generic cpuid=no-pku. The variable ought to be in __initdata given it's