Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761651AbXHHHLA (ORCPT ); Wed, 8 Aug 2007 03:11:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756890AbXHHHIM (ORCPT ); Wed, 8 Aug 2007 03:08:12 -0400 Received: from mx1.redhat.com ([66.187.233.31]:43770 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756610AbXHHHIK (ORCPT ); Wed, 8 Aug 2007 03:08:10 -0400 From: Glauber de Oliveira Costa To: linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, rusty@rustcorp.com.au, ak@suse.de, mingo@elte.hu, chrisw@sous-sol.org, jeremy@goop.org, avi@qumranet.com, anthony@codemonkey.ws, virtualization@lists.linux-foundation.org, lguest@ozlabs.org, Glauber de Oliveira Costa , Steven Rostedt Subject: [PATCH 16/25] [PATCH] introducing paravirt_activate_mm Date: Wed, 8 Aug 2007 01:19:03 -0300 Message-Id: <11865468162812-git-send-email-gcosta@redhat.com> X-Mailer: git-send-email 1.4.4.2 In-Reply-To: <11865468122642-git-send-email-gcosta@redhat.com> References: <11865467522495-git-send-email-gcosta@redhat.com> <11865467592921-git-send-email-gcosta@redhat.com> <1186546763582-git-send-email-gcosta@redhat.com> <11865467662182-git-send-email-gcosta@redhat.com> <11865467702103-git-send-email-gcosta@redhat.com> <11865467741753-git-send-email-gcosta@redhat.com> <11865467773012-git-send-email-gcosta@redhat.com> <11865467812610-git-send-email-gcosta@redhat.com> <1186546785346-git-send-email-gcosta@redhat.com> <1186546789356-git-send-email-gcosta@redhat.com> <11865467931543-git-send-email-gcosta@redhat.com> <11865467973510-git-send-email-gcosta@redhat.com> <11865468003673-git-send-email-gcosta@redhat.com> <11865468043920-git-send-email-gcosta@redhat.com> <118654680831-git-send-email-gcosta@redhat.com> <11865468122642-git-send-email-gcosta@redhat.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1534 Lines: 52 This function/macro will allow a paravirt guest to be notified we changed the current task cr3, and act upon it. It's up to them Signed-off-by: Glauber de Oliveira Costa Signed-off-by: Steven Rostedt --- include/asm-x86_64/mmu_context.h | 17 ++++++++++++++--- 1 files changed, 14 insertions(+), 3 deletions(-) diff --git a/include/asm-x86_64/mmu_context.h b/include/asm-x86_64/mmu_context.h index 9592698..77ce047 100644 --- a/include/asm-x86_64/mmu_context.h +++ b/include/asm-x86_64/mmu_context.h @@ -7,7 +7,16 @@ #include #include #include + +#ifdef CONFIG_PARAVIRT +#include +#else #include +static inline void paravirt_activate_mm(struct mm_struct *prev, + struct mm_struct *next) +{ +} +#endif /* CONFIG_PARAVIRT */ /* * possibly do the LDT unload here? @@ -67,8 +76,10 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, asm volatile("movl %0,%%fs"::"r"(0)); \ } while(0) -#define activate_mm(prev, next) \ - switch_mm((prev),(next),NULL) - +#define activate_mm(prev, next) \ +do { \ + paravirt_activate_mm(prev, next); \ + switch_mm((prev),(next),NULL); \ +} while (0) #endif -- 1.4.4.2 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/