From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Mackerras Subject: Re: [PATCH 02/13] powerpc/64: Provide functions for accessing POWER9 partition table Date: Sat, 19 Nov 2016 15:19:54 +1100 Message-ID: <20161119041954.GF29462@fergus.ozlabs.ibm.com> References: <1479454122-26994-1-git-send-email-paulus@ozlabs.org> <1479454122-26994-3-git-send-email-paulus@ozlabs.org> <878tsgoobx.fsf@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kvm@vger.kernel.org, kvm-ppc@vger.kernel.org, linuxppc-dev@ozlabs.org To: "Aneesh Kumar K.V" Return-path: Received: from ozlabs.org ([103.22.144.67]:50477 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752380AbcKSEX0 (ORCPT ); Fri, 18 Nov 2016 23:23:26 -0500 Content-Disposition: inline In-Reply-To: <878tsgoobx.fsf@linux.vnet.ibm.com> Sender: kvm-owner@vger.kernel.org List-ID: On Fri, Nov 18, 2016 at 07:57:30PM +0530, Aneesh Kumar K.V wrote: > Paul Mackerras writes: > + > > + /* Global flush of TLBs and partition table caches for this lpid */ > > + asm volatile("ptesync"); > > + asm volatile(PPC_TLBIE_5(%0,%1,2,0,0) : : "r"(0x800), "r" (lpid)); > > + asm volatile("eieio; tlbsync; ptesync" : : : "memory"); > > +} > > > It would be nice to convert that 0x800 to a documented IS value or better use > radix__flush_tlb_pid() ? Well, not radix__flush_tlb_pid - this isn't radix and it isn't a PID flush. I could use TLBIEL_INVAL_SET_LPID except the name implies it's for tlbiel and this is a tlbie. Paul.