Sean Christopherson <seanjc@xxxxxxxxxx> writes: > On Tue, Feb 08, 2022, Vitaly Kuznetsov wrote: >> Maxim Levitsky <mlevitsk@xxxxxxxxxx> writes: >> > and hv-avic only mentions AutoEOI feature. >> >> True, this is hidden in "The enlightenment allows to use Hyper-V SynIC >> with hardware APICv/AVIC enabled". Any suggestions on how to improve >> this are more than welcome!. > > Specifically for the WARN, does this approach makes sense? > > https://lore.kernel.org/all/YcTpJ369cRBN4W93@xxxxxxxxxx (Sorry for missing this dicsussion back in December) It probably does but the patch just introduces HV_TSC_PAGE_UPDATE_REQUIRED flag and drops kvm_write_guest() completely, the flag is never reset and nothing ever gets written to guest's memory. I suppose you've forgotten to commit a hunk :-) This is good starting poing though, I'll take a look. -- Vitaly
