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 <[email protected]> > > Signed-off-by: Roger Pau Monné <[email protected]> > > Reviewed-by: Jan Beulich <[email protected]> > > 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.
