On Thu, Sep 27, 2018 at 04:45:55PM +0000, Singh, Brijesh wrote: > Currently, the amdvi_validate_dte() assumes that a valid DTE will > always have V=1. This is not true. The V=1 means that bit[127:1] are > valid. A valid DTE can have IV=1 and V=0 (i.e address translation > disabled and interrupt remapping enabled) > > Remove the V=1 check from amdvi_validate_dte(), make the caller > responsible to check for V or IV bits. > > Signed-off-by: Brijesh Singh <brijesh.si...@amd.com> > Cc: Peter Xu <pet...@redhat.com> > Cc: "Michael S. Tsirkin" <m...@redhat.com> > Cc: Paolo Bonzini <pbonz...@redhat.com> > Cc: Richard Henderson <r...@twiddle.net> > Cc: Eduardo Habkost <ehabk...@redhat.com> > Cc: Marcel Apfelbaum <marcel.apfelb...@gmail.com> > Cc: Tom Lendacky <thomas.lenda...@amd.com> > Cc: Suravee Suthikulpanit <suravee.suthikulpa...@amd.com>
Maybe also mentioning: This also fixes a bug in existing code that when error is detected during the translation we'll fail the translation instead of assuming a passthrough mode. Not sure whether this can be done by maintainer. Anyways: Reviewed-by: Peter Xu <pet...@redhat.com> -- Peter Xu