Re: Intel CPU design flaw - FreeBSD affected? // disabling _R_DTSC
On Fri, Jan 05, 2018 at 02:27:40AM +0800, blubee blubeeme wrote: > I'd love to see if RISC-V is vulnerable to this? > > I think they are in the best position to capitalize on this clusterfk... It's a micro-architecture flaw, not an instruction set flaw, so just as for ARM and amd64, it will depend on the specific version. The only RISC-V hardware that I'm aware of is in-order (no speculation) so unlikely to be affected. There aren't any data-centre-scale RISC-V systems yet, but some are being worked-on. Will be interesting to see if they suddenly push out roadmaps while they go back to re-design to avoid this... Cheers, Andrew ___ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
Re: Intel CPU design flaw - FreeBSD affected? // disabling _R_DTSC
On Fri, Jan 5, 2018 at 2:25 AM, Klaus P. Ohrhallinger wrote: > On 04.01.2018 19:23, Klaus P. Ohrhallinger wrote: > > Hello, > > > > I disabled the ldtsc and ldtscp instructions for usermode on one of my > > production servers: > > > > Oops, RDTSC of course. > > ___ > freebsd-current@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org" > I'd love to see if RISC-V is vulnerable to this? I think they are in the best position to capitalize on this clusterfk... ___ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
Re: Intel CPU design flaw - FreeBSD affected? // disabling _R_DTSC
On 04.01.2018 19:23, Klaus P. Ohrhallinger wrote: > Hello, > > I disabled the ldtsc and ldtscp instructions for usermode on one of my > production servers: > Oops, RDTSC of course. ___ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
