On Fri, 09 Apr 2021 00:41:34 +0200 Thomas Monjalon <tho...@monjalon.net> wrote:
> 25/03/2021 09:06, Thomas Monjalon: > > 24/03/2021 23:59, Wang, Yipeng1: > > > From: kumar amber > > > > > > > > add _SSE42_ flag to enable compilation of > > > > sse42 specific instructions only on supported architecture > > > > > > > > Signed-off-by: kumar amber <kumar.am...@intel.com> > [...] > > > [Wang, Yipeng] > > > Hi, Kumar, thanks for the patch. > > > I think the minimum required machine for x86 is sse4.2 compatible > > > already. So I wonder if we really need this. > > > > Yes, that's why I don't understand this patch. > > Any comment? Should we reject the patch? > > > The only use case would be running DPDK in a VM for a hypervisor that disables those instructions in guest. Some old crufty hypervisors don't handle it??
