On Wed, Jul 06, 2022, Jim Mattson wrote: > On Tue, Jun 14, 2022 at 1:47 PM Sean Christopherson <seanjc@xxxxxxxxxx> wrote: > > > > Add a dedicated "exception type" for #DBs, as #DBs can be fault-like or > > trap-like depending the sub-type of #DB, and effectively defer the > > decision of what to do with the #DB to the caller. > > > > For the emulator's two calls to exception_type(), treat the #DB as > > fault-like, as the emulator handles only code breakpoint and general > > detect #DBs, both of which are fault-like. > > Does this mean that data and I/O breakpoint traps are just dropped? Yep. > Are there KVM errata for those misbehaviors? Nope. > What about single-stepping? Is that handled outwith the emulator? Single-step is emulated, and AFAIK there are no _known_ bugs.
