>>> On 16.10.17 at 16:38, <andrew.coop...@citrix.com> wrote: > c/s cf6d39f8199 "x86/PV: properly populate descriptor tables" changed the GDT > to reference zero_page for intermediate frames between the guest and Xen > frames. > > Because dom0_construct_pv() doesn't call arch_set_info_guest(), some bits of > initialisation are missed, including the pv_destroy_gdt() which initially > fills the references to zero_page. > > In practice, this means there is a window between starting and the first call > to HYPERCALL_set_gdt() were lar/lsl/verr/verw suffer non-architectural > behaviour. > > Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com> > This probably wants backporting to Xen 4.7 and later. Could you remind me once the patch has gone in (as that'll be only in quite a few weeks)? Thanks, Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
