From patchwork Tue Jul 17 13:30:04 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anthony PERARD X-Patchwork-Id: 171427 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 384C22C0094 for ; Tue, 17 Jul 2012 23:30:49 +1000 (EST) Received: from localhost ([::1]:35968 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sr7rT-00032I-3h for incoming@patchwork.ozlabs.org; Tue, 17 Jul 2012 09:30:47 -0400 Received: from eggs.gnu.org ([208.118.235.92]:58789) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sr7rH-0002wZ-8U for qemu-devel@nongnu.org; Tue, 17 Jul 2012 09:30:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Sr7r6-00037A-3v for qemu-devel@nongnu.org; Tue, 17 Jul 2012 09:30:35 -0400 Received: from smtp.citrix.com ([66.165.176.89]:2364) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sr7r5-00036o-Uz for qemu-devel@nongnu.org; Tue, 17 Jul 2012 09:30:24 -0400 X-IronPort-AV: E=Sophos;i="4.77,603,1336363200"; d="scan'208";a="31756863" Received: from ftlpmailmx02.citrite.net ([10.13.107.66]) by FTLPIPO01.CITRIX.COM with ESMTP/TLS/RC4-MD5; 17 Jul 2012 09:30:21 -0400 Received: from ukmail1.uk.xensource.com (10.80.16.128) by smtprelay.citrix.com (10.13.107.66) with Microsoft SMTP Server id 8.3.213.0; Tue, 17 Jul 2012 09:30:21 -0400 Received: from [10.80.3.61] (helo=perard.uk.xensource.com) by ukmail1.uk.xensource.com with esmtp (Exim 4.69) (envelope-from ) id 1Sr7r2-0005sB-Lj; Tue, 17 Jul 2012 14:30:20 +0100 From: Anthony PERARD To: QEMU-devel Date: Tue, 17 Jul 2012 14:30:04 +0100 Message-ID: <1342531805-29894-4-git-send-email-anthony.perard@citrix.com> X-Mailer: git-send-email 1.7.2.5 In-Reply-To: <1342531805-29894-1-git-send-email-anthony.perard@citrix.com> References: <1342531805-29894-1-git-send-email-anthony.perard@citrix.com> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 66.165.176.89 Cc: Anthony Liguori , Xen Devel , Stefano Stabellini , Avi Kivity , Anthony PERARD , Luiz Capitulino Subject: [Qemu-devel] [PATCH 3/4] exec, memory: Call to xen_modified_memory. X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org This patch add some calls to xen_modified_memory to notify Xen about dirtybits during migration. Signed-off-by: Anthony PERARD --- exec.c | 4 ++++ memory.c | 2 ++ 2 files changed, 6 insertions(+), 0 deletions(-) diff --git a/exec.c b/exec.c index c9fa17d..9f7a4f7 100644 --- a/exec.c +++ b/exec.c @@ -3438,6 +3438,7 @@ void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf, cpu_physical_memory_set_dirty_flags( addr1, (0xff & ~CODE_DIRTY_FLAG)); } + xen_modified_memory(addr1, TARGET_PAGE_SIZE); qemu_put_ram_ptr(ptr); } } else { @@ -3623,6 +3624,7 @@ void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len, if (buffer != bounce.buffer) { if (is_write) { ram_addr_t addr1 = qemu_ram_addr_from_host_nofail(buffer); + xen_modified_memory(addr1, access_len); while (access_len) { unsigned l; l = TARGET_PAGE_SIZE; @@ -3947,6 +3949,7 @@ static inline void stl_phys_internal(target_phys_addr_t addr, uint32_t val, cpu_physical_memory_set_dirty_flags(addr1, (0xff & ~CODE_DIRTY_FLAG)); } + xen_modified_memory(addr1, 4); } } @@ -4020,6 +4023,7 @@ static inline void stw_phys_internal(target_phys_addr_t addr, uint32_t val, cpu_physical_memory_set_dirty_flags(addr1, (0xff & ~CODE_DIRTY_FLAG)); } + xen_modified_memory(addr1, 2); } } diff --git a/memory.c b/memory.c index aab4a31..4d004e2 100644 --- a/memory.c +++ b/memory.c @@ -19,6 +19,7 @@ #include "bitops.h" #include "kvm.h" #include +#include "hw/xen.h" #define WANT_EXEC_OBSOLETE #include "exec-obsolete.h" @@ -1085,6 +1086,7 @@ void memory_region_set_dirty(MemoryRegion *mr, target_phys_addr_t addr, target_phys_addr_t size) { assert(mr->terminates); + xen_modified_memory(mr->ram_addr + addr, size); return cpu_physical_memory_set_dirty_range(mr->ram_addr + addr, size, -1); }