On 05.04.2024 15:07, Andrew Cooper wrote: > It turns out there is something wonky on some but not all CPUs with > MSR_TSX_FORCE_ABORT. The presence of RTM_ALWAYS_ABORT causes Xen to think > it's safe to offer HLE/RTM to guests, but in this case, XBEGIN instructions > genuinely #UD. > > Spot this case and try to back out as cleanly as we can. > > Signed-off-by: Andrew Cooper <[email protected]> > Tested-by: Marek Marczykowski-Górecki <[email protected]>
Acked-by: Jan Beulich <[email protected]>
