From nobody Sat Apr 5 16:10:27 2025 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1738051152613480.6908694612181; Mon, 27 Jan 2025 23:59:12 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tcgSE-000805-4W; Tue, 28 Jan 2025 02:56:14 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tcgRZ-0007ep-KF; Tue, 28 Jan 2025 02:55:42 -0500 Received: from isrv.corpit.ru ([86.62.121.231]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tcgRX-0008Vr-N3; Tue, 28 Jan 2025 02:55:33 -0500 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 1097EE1AD5; Tue, 28 Jan 2025 10:53:00 +0300 (MSK) Received: from localhost.tls.msk.ru (mjt.wg.tls.msk.ru [192.168.177.130]) by tsrv.corpit.ru (Postfix) with ESMTP id 7F7561A62C4; Tue, 28 Jan 2025 10:53:25 +0300 (MSK) Received: by localhost.tls.msk.ru (Postfix, from userid 1000) id 3C3225201F; Tue, 28 Jan 2025 10:53:25 +0300 (MSK) To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Nicholas Piggin , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , "Michael S . Tsirkin" , Michael Tokarev Subject: [Stable-7.2.16 28/31] pci/msix: Fix msix pba read vector poll end calculation Date: Tue, 28 Jan 2025 00:41:20 +0300 Message-Id: <20250127214124.3730126-28-mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.5 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable From: Michael Tokarev 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=86.62.121.231; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -53 X-Spam_score: -5.4 X-Spam_bar: ----- X-Spam_report: (-5.4 / 5.0 requ) BAYES_00=-1.9, DATE_IN_PAST_06_12=1.543, RCVD_IN_DNSWL_HI=-5, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1738051154635019000 The end vector calculation has a bug that results in polling fewer than required vectors when reading at a non-zero offset in PBA memory. Fixes: bbef882cc193 ("msi: add API to get notified about pending bit poll") Signed-off-by: Nicholas Piggin Message-Id: <20241212120402.1475053-1-npiggin@gmail.com> Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin (cherry picked from commit 42e2a7a0ab23784e44fcb18369e06067abc89305) Signed-off-by: Michael Tokarev diff --git a/hw/pci/msix.c b/hw/pci/msix.c index 4b258566d4..20e39e51b4 100644 --- a/hw/pci/msix.c +++ b/hw/pci/msix.c @@ -241,7 +241,7 @@ static uint64_t msix_pba_mmio_read(void *opaque, hwaddr= addr, PCIDevice *dev =3D opaque; if (dev->msix_vector_poll_notifier) { unsigned vector_start =3D addr * 8; - unsigned vector_end =3D MIN(addr + size * 8, dev->msix_entries_nr); + unsigned vector_end =3D MIN((addr + size) * 8, dev->msix_entries_n= r); dev->msix_vector_poll_notifier(dev, vector_start, vector_end); } =20 --=20 2.39.5