But it was backported on 6.6 and the performance impact is pretty high on some workloads. As this patch is only providing a perf benefit and to keep consistency with other stable kernels, would it be possible to get it merged ? Le jeu. 28 nov. 2024 à 16:52, Sasha Levin <sashal@xxxxxxxxxx> a écrit : > > On Thu, Nov 28, 2024 at 12:59:24PM +0100, Borislav Petkov wrote: > >Hey folks, > > > >On Mon, Jan 15, 2024 at 06:26:56PM -0500, Sasha Levin wrote: > >> From: "Borislav Petkov (AMD)" <bp@xxxxxxxxx> > >> > >> [ Upstream commit 04c3024560d3a14acd18d0a51a1d0a89d29b7eb5 ] > >> > >> AMD does not have the requirement for a synchronization barrier when > >> acccessing a certain group of MSRs. Do not incur that unnecessary > >> penalty there. > > > >Erwan just mentioned that this one is not in 6.1 and in 5.15. And I have mails > >about it getting picked up by AUTOSEL. > > > >Did the AI reconsider in the meantime? > > You've missed the 5.10 mail :) > > Pavel objected to it so I've dropped it: https://lore.kernel.org/all/Zbli7QIGVFT8EtO4@sashalap/ > > -- > Thanks, > Sasha
