From nobody Mon Feb 9 09:29:46 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1588657939; cv=none; d=zohomail.com; s=zohoarc; b=epqNyyMlruZp98glR3rIEoJzQVM9M1mVyHA1fJBjWOQe1cCuC7Wc6j2mAyEFC+IAW3/DLxWCF2CjNjpTJwrFAkueVbiZQOfn23FzZZ6Ks675MDjFQg2zNOQJb29ok3khgJAcljDdE1GhfdiDtVzi8NcKlUscmzoRaTVrxox3Asw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1588657939; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=uGkxJ7mUobUpNOAT/x26NIa5I+g+5TFGemUPAgmqJk8=; b=nNpLAUp2x4u4oIWMFt1XZgHqfsi+7wY7Wd6CdgkqxSeJPMy5JOL49HbOsQ+EYBgR0/1u41n2W8P5/YFVaR4zMOdibal36VmgaVRogdH+aZWhVfaJCWSsxp4DQNKurW4KuvVA39bnNjhj5eZMM9Q/Lxv5Vk1cNIhuOV2qdCo655w= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1588657939456442.2723518893846; Mon, 4 May 2020 22:52:19 -0700 (PDT) Received: from localhost ([::1]:39026 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jVqV8-0004KR-3n for importer@patchew.org; Tue, 05 May 2020 01:52:18 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:53564) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jVqS7-00073k-V6; Tue, 05 May 2020 01:49:11 -0400 Received: from charlie.dont.surf ([128.199.63.193]:56330) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jVqS6-0005D5-E8; Tue, 05 May 2020 01:49:11 -0400 Received: from apples.local (80-167-98-190-cable.dk.customer.tdc.net [80.167.98.190]) by charlie.dont.surf (Postfix) with ESMTPSA id 2EC3FBFB2D; Tue, 5 May 2020 05:49:06 +0000 (UTC) From: Klaus Jensen To: qemu-block@nongnu.org Subject: [PATCH v5 06/18] nvme: refactor nvme_addr_read Date: Tue, 5 May 2020 07:48:28 +0200 Message-Id: <20200505054840.186586-7-its@irrelevant.dk> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200505054840.186586-1-its@irrelevant.dk> References: <20200505054840.186586-1-its@irrelevant.dk> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=128.199.63.193; envelope-from=its@irrelevant.dk; helo=charlie.dont.surf X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/05 00:31:35 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Beata Michalska , Klaus Jensen , qemu-devel@nongnu.org, Max Reitz , Klaus Jensen , Keith Busch , Javier Gonzalez , Maxim Levitsky , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Maxim Levitsky Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" From: Klaus Jensen Pull the controller memory buffer check to its own function. The check will be used on its own in later patches. Signed-off-by: Klaus Jensen Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Maxim Levitsky Reviewed-by: Keith Busch Reviewed-by: Maxim Levitsky --- hw/block/nvme.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index 4058f2c79796..623a88be93dc 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -66,14 +66,22 @@ =20 static void nvme_process_sq(void *opaque); =20 +static bool nvme_addr_is_cmb(NvmeCtrl *n, hwaddr addr) +{ + hwaddr low =3D n->ctrl_mem.addr; + hwaddr hi =3D n->ctrl_mem.addr + int128_get64(n->ctrl_mem.size); + + return addr >=3D low && addr < hi; +} + static void nvme_addr_read(NvmeCtrl *n, hwaddr addr, void *buf, int size) { - if (n->cmbsz && addr >=3D n->ctrl_mem.addr && - addr < (n->ctrl_mem.addr + int128_get64(n->ctrl_mem.size))= ) { + if (n->cmbsz && nvme_addr_is_cmb(n, addr)) { memcpy(buf, (void *)&n->cmbuf[addr - n->ctrl_mem.addr], size); - } else { - pci_dma_read(&n->parent_obj, addr, buf, size); + return; } + + pci_dma_read(&n->parent_obj, addr, buf, size); } =20 static int nvme_check_sqid(NvmeCtrl *n, uint16_t sqid) --=20 2.26.2