lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 11 Nov 2009 10:21:36 +0000 From: Alan Cox <alan@...rguk.ukuu.org.uk> To: Willy Tarreau <w@....eu> Cc: "H. Peter Anvin" <hpa@...or.com>, Pavel Machek <pavel@....cz>, Avi Kivity <avi@...hat.com>, Matteo Croce <technoboy85@...il.com>, Sven-Haegar Koch <haegar@...net.de>, Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org Subject: Re: i686 quirk for AMD Geode > So in my opinion, we should have : > - CMOV (for 486, Pentium, C3, K6, ...) > - NOPL (newcomer) > > And if we want to extend down to i386 : > - BSWAP (=htonl) > - CMPXCHG (mutex) > - XADD (never encoutered but cheap) > > I still have the 2.4 patch for BSWAP, CMPXCHG, CMOV and XADD lying If we go that far it needs a lot more thought and probably to use the KVM code simply because of all the complexities around prefixes and the like (Not of course that the real CPUs are consistent either) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists