Re: [PATCH v2 1/3] x86/vmx: implement Bus Lock detection

["Roger Pau Monné" <roger.pau@citrix.com>]

On Fri, Jun 03, 2022 at 02:16:47PM +0200, Jan Beulich wrote:
> On 26.05.2022 13:11, Roger Pau Monne wrote:
> > Add support for enabling Bus Lock Detection on Intel systems.  Such
> > detection works by triggering a vmexit, which ought to be enough of a
> > pause to prevent a guest from abusing of the Bus Lock.
> > 
> > Add an extra Xen perf counter to track the number of Bus Locks detected.
> > This is done because Bus Locks can also be reported by setting the bit
> > 26 in the exit reason field, so also account for those.
> > 
> > Suggested-by: Andrew Cooper <andrew.cooper3@citrix.com>
> > Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
> 
> Reviewed-by: Jan Beulich <jbeulich@suse.com>
> 
> This implements just the VMexit part of the feature - maybe the
> title wants to reflect that? The vmx: tag could also mean there
> is exposure to guests included for the #DB part of the feature.

Maybe:

"x86/vmx: add Bus Lock detection to the hypervisor"

Thanks, Roger.