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Message-ID: <4FBED670.8030002@linux.intel.com> Date: Thu, 24 May 2012 17:46:40 -0700 From: Arjan van de Ven <arjan@...ux.intel.com> To: Alex Shi <alex.shi@...el.com> CC: Peter Zijlstra <peterz@...radead.org>, Andrew Lutomirski <luto@....edu>, Jan Beulich <JBeulich@...e.com>, borislav.petkov@....com, arnd@...db.de, akinobu.mita@...il.com, eric.dumazet@...il.com, fweisbec@...il.com, rostedt@...dmis.org, hughd@...gle.com, jeremy@...p.org, len.brown@...el.com, tony.luck@...el.com, yongjie.ren@...el.com, kamezawa.hiroyu@...fujitsu.com, seto.hidetoshi@...fujitsu.com, penberg@...nel.org, yinghai@...nel.org, tglx@...utronix.de, akpm@...ux-foundation.org, ak@...ux.intel.com, avi@...hat.com, dhowells@...hat.com, mingo@...hat.com, riel@...hat.com, cpw@....com, steiner@....com, linux-kernel@...r.kernel.org, viro@...iv.linux.org.uk, hpa@...or.com, "asit.k.mallick@...el.com" <asit.k.mallick@...el.com> Subject: Re: [PATCH v7 8/8] x86/tlb: just do tlb flush on one of siblings of SMT On > As my limited knowledge, rewrite cr3 or invlpg will flush all levels TLB > entries in CPU. So, what's you mean of 'HAVE to flush all'? neither of these will flush global tlb entries. (see the "global" bit in the page table format) -- 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/
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