From patchwork Tue Jul 8 14:05:49 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikolay Nikolaev X-Patchwork-Id: 368871 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 08A21140092 for ; Fri, 11 Jul 2014 09:53:07 +1000 (EST) Received: from localhost ([::1]:41029 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X5O9B-0002cJ-Bt for incoming@patchwork.ozlabs.org; Thu, 10 Jul 2014 19:53:05 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49915) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X4W21-0000lv-JR for qemu-devel@nongnu.org; Tue, 08 Jul 2014 10:06:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1X4W1t-0003s8-OE for qemu-devel@nongnu.org; Tue, 08 Jul 2014 10:06:05 -0400 Received: from mail-we0-f172.google.com ([74.125.82.172]:49187) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X4W1t-0003ro-HP for qemu-devel@nongnu.org; Tue, 08 Jul 2014 10:05:57 -0400 Received: by mail-we0-f172.google.com with SMTP id u57so5927987wes.3 for ; Tue, 08 Jul 2014 07:05:56 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:from:to:cc:date:message-id:in-reply-to :references:user-agent:mime-version:content-type :content-transfer-encoding; bh=T3EP1NxBbpKHga/1xk8iwgTczn9/UIKyGYgzF1Oiagw=; b=BgvRQfW1a0AcFoW1OW4AimTS6LD29WgDkWGs8K3JF14xcMFU4X8cY2I5kJUT3Ay46w VBXBlklt2hKPnYdisCexFTdHhKrao44bxw4evkIbPmLRSuGEJqVNap/kyoEjD9YsTGn/ pwjEQAyOHDph38uYNJyVb6J29T24PhjosXvn5xO5CRdO2y6lRfBsNxrDYDaPL6tKI7C4 k3WxIi3k6xk5Sx8FoYSThZ1PKbJbmtlx83zs/nk+vuqtEzEeyevG681q/xxrVRt482KS ZgMmu9QqXF4kckk6CbWpBISG23cU2LzStaHxiCNuqC0qPxt1CBcZUKK7tGw06uSiPXwf LcIg== X-Gm-Message-State: ALoCoQnfWSb9Je8lt2mphxeh9ImUngZ882L3ELbkMG+QpEy1yLJZzvciVnJnUNgeQGmykwUWr/OE X-Received: by 10.194.177.168 with SMTP id cr8mr3025654wjc.134.1404828356503; Tue, 08 Jul 2014 07:05:56 -0700 (PDT) Received: from [0.0.14.236] ([82.146.27.14]) by mx.google.com with ESMTPSA id fu7sm7496926wib.2.2014.07.08.07.05.55 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 08 Jul 2014 07:05:55 -0700 (PDT) From: Nikolay Nikolaev To: snabb-devel@googlegroups.com, qemu-devel@nongnu.org, mst@redhat.com Date: Tue, 08 Jul 2014 17:05:49 +0300 Message-ID: <20140708140542.7314.24797.stgit@3820> In-Reply-To: <20140708140447.7314.87628.stgit@3820> References: <20140708140447.7314.87628.stgit@3820> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 74.125.82.172 Cc: tech@virtualopensystems.com, n.nikolaev@virtualopensystems.com Subject: [Qemu-devel] [PATCH 1/3] Add qemu_is_ram_block 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 function will check if given address maps into a RAMBlock. Signed-off-by: Nikolay Nikolaev --- exec.c | 15 +++++++++++++++ include/exec/ram_addr.h | 1 + 2 files changed, 16 insertions(+) diff --git a/exec.c b/exec.c index 5a2a25e..0b1457b 100644 --- a/exec.c +++ b/exec.c @@ -743,6 +743,21 @@ void cpu_abort(CPUState *cpu, const char *fmt, ...) } #if !defined(CONFIG_USER_ONLY) +bool qemu_is_ram_block(ram_addr_t addr) +{ + RAMBlock *block; + bool found = false; + + QTAILQ_FOREACH(block, &ram_list.blocks, next) { + if (addr - block->offset < block->length) { + found = true; + break; + } + } + + return found; +} + static RAMBlock *qemu_get_ram_block(ram_addr_t addr) { RAMBlock *block; diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h index e9eb831..a4b2c3e 100644 --- a/include/exec/ram_addr.h +++ b/include/exec/ram_addr.h @@ -28,6 +28,7 @@ ram_addr_t qemu_ram_alloc_from_file(ram_addr_t size, MemoryRegion *mr, ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host, MemoryRegion *mr); ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr); +bool qemu_is_ram_block(ram_addr_t addr); int qemu_get_ram_fd(ram_addr_t addr); void *qemu_get_ram_block_host_ptr(ram_addr_t addr); void *qemu_get_ram_ptr(ram_addr_t addr);