>>> On 23.09.15 at 19:37, <andrew.coop...@citrix.com> wrote: > On 22/09/15 14:06, Jan Beulich wrote: >> ... in anticipation of this possibly going to get used by guests for >> basic thinks like memset() or clearing or pages. >> >> Since the emulation doesn't use clzero itself, checking the guest's >> CPUID for the feature to be exposed is (intentionally) being avoided >> here. All that's required is sensible guest side data for the clflush >> line size. >> >> Signed-off-by: Jan Beulich <jbeul...@suse.com> > > Where have you found this instruction? Googling, I have found a > presentation talking about it being new in the new AMD Zen cores, but I > still can't locate any technical documentation on the matter.
Sadly no technical documentation so far, despite me pinging for it after the respective binutils patch (https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=029f3522619e8b77a7b848be23f4c13e50087d8b) got posted and went in. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
