On Thu, Sep 22, 2016 at 12:38:22AM -0600, Jan Beulich wrote: > Signed-off-by: Jan Beulich <jbeul...@suse.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> > --- > This goes on top of > https://lists.xenproject.org/archives/html/xen-devel/2016-09/msg02198.html > > --- a/xen/arch/x86/x86_emulate/x86_emulate.c > +++ b/xen/arch/x86/x86_emulate/x86_emulate.c > @@ -1207,10 +1207,17 @@ protmode_load_seg( > /* NULL selector? */ > if ( (sel & 0xfffc) == 0 ) > { > - if ( (seg == x86_seg_cs) || > - ((seg == x86_seg_ss) && > - (!mode_64bit() || (cpl == 3) || (cpl != sel))) ) > + switch ( seg ) > + { > + case x86_seg_ss: > + if ( mode_64bit() && (cpl != 3) && (cpl == sel) ) > + default: > + break; > + /* fall through */ > + case x86_seg_cs: > + case x86_seg_tr: > goto raise_exn; > + } > memset(sreg, 0, sizeof(*sreg)); > sreg->sel = sel; > return X86EMUL_OKAY; > _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
