>>> On 19.05.17 at 20:49, <andrew.coop...@citrix.com> wrote: > As identified in Linux c/s c198b121b1a1d "x86/asm: Rewrite sync_core() to use > IRET-to-self", sync_core() is only appropriate for two very specific usecases. > > Xen doesn't have need of either of these usecases, so drop sync_core() to > avoid any misuse. > > In the unlikely event that we do gain a legitimate use for sync_core(), it > should be reintroduced as a mov to %cr2 rather than cpuid, which has a lower > overhead. > > Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
Acked-by: Jan Beulich <jbeul...@suse.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
