>>> On 23.03.18 at 14:41, <paul.durr...@citrix.com> wrote: > So somehow it appears the vcpu got back into guest and executed the next > instruction whilst there was pending I/O.
Two new pieces of information, in case either rings a bell: The issue appears to never occur in hap=0 mode. After having added I/O emulation state checks at the beginning of vmx_vmexit_handler() as well as very early and very late in vmx_vmenter_helper(), it was the one early in vmx_vmenter_helper() which triggered (still seeing the VGA port access in STATE_IORESP_READY while vio->io_completion was HVMIO_no_completion). Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
