On 06/04/18 08:52, Juergen Gross wrote: > When switching to a 64-bit pv context the TLB is flushed twice today: > the first time when switching to the new address space in > write_ptbase(), the second time when switching to guest mode in > restore_to_guest. > > Limit the first flush to non-global entries in that case. > > Signed-off-by: Juergen Gross <jgr...@suse.com> > Reviewed-by: Jan Beulich <jbeul...@suse.com>
This isn't safe. If any speculation/prefetching happens into the new guest mappings, we will get machine check exceptions. ~Andrew _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
