From patchwork Wed Mar 14 01:20:13 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: junyan.he@hotmail.com X-Patchwork-Id: 10281345 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 1F35260231 for ; Wed, 14 Mar 2018 01:27:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 10B122863B for ; Wed, 14 Mar 2018 01:27:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0596D28646; Wed, 14 Mar 2018 01:27:18 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,FREEMAIL_FROM, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 73D182863B for ; Wed, 14 Mar 2018 01:27:17 +0000 (UTC) Received: from localhost ([::1]:43926 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1evvCG-0005HD-FD for patchwork-qemu-devel@patchwork.kernel.org; Tue, 13 Mar 2018 21:27:16 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36365) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1evv5m-0000PL-0D for qemu-devel@nongnu.org; Tue, 13 Mar 2018 21:20:38 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1evv5l-0006R5-2O for qemu-devel@nongnu.org; Tue, 13 Mar 2018 21:20:33 -0400 Received: from mga18.intel.com ([134.134.136.126]:28906) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1evv5k-0006Hx-QT for qemu-devel@nongnu.org; Tue, 13 Mar 2018 21:20:33 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Mar 2018 18:20:32 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.47,466,1515484800"; d="scan'208";a="38632845" Received: from natrouter.sh.intel.com (HELO robinhe-hp.domain) ([10.239.13.3]) by orsmga001.jf.intel.com with ESMTP; 13 Mar 2018 18:20:30 -0700 From: junyan.he@hotmail.com To: qemu-devel@nongnu.org Date: Wed, 14 Mar 2018 09:20:13 +0800 Message-Id: <1520990418-28258-6-git-send-email-junyan.he@hotmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1520990418-28258-1-git-send-email-junyan.he@hotmail.com> References: <1520990418-28258-1-git-send-email-junyan.he@hotmail.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 134.134.136.126 Subject: [Qemu-devel] [PATCH 05/10] RFC: Add memory region snapshot bitmap get function. X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, famz@redhat.com, crosthwaite.peter@gmail.com, quintela@redhat.com, dgilbert@redhat.com, mreitz@redhat.com, Junyan He , pbonzini@redhat.com, rth@twiddle.net Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Junyan He We need to get the bitmap content of the snapshot when enable dirty log trace for nvdimm. Signed-off-by: Junyan He --- exec.c | 7 +++++++ include/exec/memory.h | 9 +++++++++ include/exec/ram_addr.h | 2 ++ memory.c | 7 +++++++ 4 files changed, 25 insertions(+) diff --git a/exec.c b/exec.c index a9181e6..3d2bf0d 100644 --- a/exec.c +++ b/exec.c @@ -1235,6 +1235,13 @@ bool cpu_physical_memory_snapshot_get_dirty(DirtyBitmapSnapshot *snap, return false; } +unsigned long *cpu_physical_memory_snapshot_get_dirty_bitmap + (DirtyBitmapSnapshot *snap) +{ + assert(snap); + return snap->dirty; +} + /* Called from RCU critical section */ hwaddr memory_region_section_get_iotlb(CPUState *cpu, MemoryRegionSection *section, diff --git a/include/exec/memory.h b/include/exec/memory.h index 31eae0a..f742995 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -1179,6 +1179,15 @@ bool memory_region_snapshot_get_dirty(MemoryRegion *mr, hwaddr addr, hwaddr size); /** + * memory_region_snapshot_get_dirty_bitmap: Get the dirty bitmap data of + * snapshot. + * + * @snap: the dirty bitmap snapshot + */ +unsigned long *memory_region_snapshot_get_dirty_bitmap + (DirtyBitmapSnapshot *snap); + +/** * memory_region_reset_dirty: Mark a range of pages as clean, for a specified * client. * diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h index cf2446a..ce366c1 100644 --- a/include/exec/ram_addr.h +++ b/include/exec/ram_addr.h @@ -371,6 +371,8 @@ DirtyBitmapSnapshot *cpu_physical_memory_snapshot_and_clear_dirty bool cpu_physical_memory_snapshot_get_dirty(DirtyBitmapSnapshot *snap, ram_addr_t start, ram_addr_t length); +unsigned long *cpu_physical_memory_snapshot_get_dirty_bitmap + (DirtyBitmapSnapshot *snap); static inline void cpu_physical_memory_clear_dirty_range(ram_addr_t start, ram_addr_t length) diff --git a/memory.c b/memory.c index 4a8a2fe..68f17f0 100644 --- a/memory.c +++ b/memory.c @@ -1991,6 +1991,13 @@ DirtyBitmapSnapshot *memory_region_snapshot_and_clear_dirty(MemoryRegion *mr, memory_region_get_ram_addr(mr) + addr, size, client); } +unsigned long *memory_region_snapshot_get_dirty_bitmap + (DirtyBitmapSnapshot *snap) +{ + assert(snap); + return cpu_physical_memory_snapshot_get_dirty_bitmap(snap); +} + bool memory_region_snapshot_get_dirty(MemoryRegion *mr, DirtyBitmapSnapshot *snap, hwaddr addr, hwaddr size) {