From nobody Wed Apr 16 03:53:27 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; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1688975449174501.9815712676068; Mon, 10 Jul 2023 00:50:49 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qIleF-0006Uq-IV; Mon, 10 Jul 2023 03:49:31 -0400 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 1qIleB-0006Rd-OV for qemu-devel@nongnu.org; Mon, 10 Jul 2023 03:49:29 -0400 Received: from gandalf.ozlabs.org ([150.107.74.76]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qIle9-0006xT-0s for qemu-devel@nongnu.org; Mon, 10 Jul 2023 03:49:26 -0400 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4Qzx3Q0RGfz4wyK; Mon, 10 Jul 2023 17:49:22 +1000 (AEST) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4Qzx3M0YY5z4wyH; Mon, 10 Jul 2023 17:49:18 +1000 (AEST) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Richard Henderson , Alex Williamson , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Robin Voetter Subject: [PULL 10/11] pcie: Add a PCIe capability version helper Date: Mon, 10 Jul 2023 09:48:47 +0200 Message-ID: <20230710074848.456453-11-clg@redhat.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230710074848.456453-1-clg@redhat.com> References: <20230710074848.456453-1-clg@redhat.com> 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=150.107.74.76; envelope-from=SRS0=Zxd8=C4=redhat.com=clg@ozlabs.org; helo=gandalf.ozlabs.org X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: 1688975451449100003 From: Alex Williamson Report the PCIe capability version for a device Signed-off-by: Alex Williamson Reviewed-by: C=C3=A9dric Le Goater Reviewed-by: Philippe Mathieu-Daud=C3=A9 Tested-by: Robin Voetter Signed-off-by: C=C3=A9dric Le Goater --- include/hw/pci/pcie.h | 1 + hw/pci/pcie.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/include/hw/pci/pcie.h b/include/hw/pci/pcie.h index 3cc2b159570f..51ab57bc3c50 100644 --- a/include/hw/pci/pcie.h +++ b/include/hw/pci/pcie.h @@ -93,6 +93,7 @@ void pcie_cap_exit(PCIDevice *dev); int pcie_endpoint_cap_v1_init(PCIDevice *dev, uint8_t offset); void pcie_cap_v1_exit(PCIDevice *dev); uint8_t pcie_cap_get_type(const PCIDevice *dev); +uint8_t pcie_cap_get_version(const PCIDevice *dev); void pcie_cap_flags_set_vector(PCIDevice *dev, uint8_t vector); uint8_t pcie_cap_flags_get_vector(PCIDevice *dev); =20 diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index b8c24cf45f7e..b7f107ed8dd4 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -274,6 +274,13 @@ uint8_t pcie_cap_get_type(const PCIDevice *dev) PCI_EXP_FLAGS_TYPE) >> PCI_EXP_FLAGS_TYPE_SHIFT; } =20 +uint8_t pcie_cap_get_version(const PCIDevice *dev) +{ + uint32_t pos =3D dev->exp.exp_cap; + assert(pos > 0); + return pci_get_word(dev->config + pos + PCI_EXP_FLAGS) & PCI_EXP_FLAGS= _VERS; +} + /* MSI/MSI-X */ /* pci express interrupt message number */ /* 7.8.2 PCI Express Capabilities Register: Interrupt Message Number */ --=20 2.41.0