From nobody Thu Dec 18 19:36:23 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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 ARC-Seal: i=1; a=rsa-sha256; t=1612456326; cv=none; d=zohomail.com; s=zohoarc; b=iikKIE7SMBtR2RQSGCvCIAK616r0+Fm9xEV5czssH7GmKOd9hbBezG6jOG9LtKCmDYMhtWsMU8WkMkQPsFvrAXv55X0smYPHsAal2uba+LyA49UhC+nodwkSC60yJPY3kfhHcwQQMQTJ3b7h5IZMvZ1bwOUmvCcbwzjGBKu73iQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1612456326; 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=/Zh8p4SflgSqAiHL8Zqv7hpdRPhsOqr+pSuTgvlZxJk=; b=kQmSGceGbXtykdU3/T2BNugGkLr8DcOHK4MqS78dX+9+27f8hZIE4oqO5N34qUZzNqT4Mz6JrCq3CHCb0wGTCPyIwRn3V8rPgklwBvoLlI/Kn7Tc6BwyaHlYUJWFOeavl0Z8yG0/NfEu63g2TkiwYMTuoQ5+0UzWuhoD027IKrw= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1612456326838218.97935974388338; Thu, 4 Feb 2021 08:32:06 -0800 (PST) Received: from localhost ([::1]:54924 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l7hFW-0003LL-Bl for importer@patchew.org; Thu, 04 Feb 2021 11:12:54 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:54830) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l7grM-00028y-1N for qemu-devel@nongnu.org; Thu, 04 Feb 2021 10:47:56 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:36812) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1l7grJ-0005uL-9l for qemu-devel@nongnu.org; Thu, 04 Feb 2021 10:47:55 -0500 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-517-Ia4zfGp2PPqfcDhGFtiQuQ-1; Thu, 04 Feb 2021 10:47:50 -0500 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 70732801961; Thu, 4 Feb 2021 15:47:48 +0000 (UTC) Received: from localhost (ovpn-115-89.ams2.redhat.com [10.36.115.89]) by smtp.corp.redhat.com (Postfix) with ESMTP id ABA7660C16; Thu, 4 Feb 2021 15:47:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1612453672; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/Zh8p4SflgSqAiHL8Zqv7hpdRPhsOqr+pSuTgvlZxJk=; b=ASbWuBwz6Nt0QkPs9/LE8f+i0gteT7Ea/OTWWFAre4cwLa8+4ziAhiA7pLP9OOX3Y1LAsR gXa6O0BD2eGYpNblv0xg8CcoaEkoAxxN4lECMFWozdLWpKb5+2DD+/Mf2JYESBp0qr6bzu 0xFfbGMPO61ZeCruKowhvW5MnEQuptA= X-MC-Unique: Ia4zfGp2PPqfcDhGFtiQuQ-1 From: Stefan Hajnoczi To: Peter Maydell , qemu-devel@nongnu.org Subject: [PULL v2 25/27] multi-process: Retrieve PCI info from remote process Date: Thu, 4 Feb 2021 15:43:25 +0000 Message-Id: <20210204154327.386529-26-stefanha@redhat.com> In-Reply-To: <20210204154327.386529-1-stefanha@redhat.com> References: <20210204154327.386529-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=stefanha@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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=216.205.24.124; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -13 X-Spam_score: -1.4 X-Spam_bar: - X-Spam_report: (-1.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.351, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MIME_BASE64_TEXT=1.741, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no 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: Elena Ufimtseva , John G Johnson , Thomas Huth , Jagannathan Raman , Eduardo Habkost , qemu-block@nongnu.org, "Michael S. Tsirkin" , "Denis V. Lunev" , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Wainer dos Santos Moschetta , Paolo Bonzini , Stefan Hajnoczi , Igor Mammedov , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Fam Zheng , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Jagannathan Raman Retrieve PCI configuration info about the remote device and configure the Proxy PCI object based on the returned information Signed-off-by: Elena Ufimtseva Signed-off-by: John G Johnson Signed-off-by: Jagannathan Raman Reviewed-by: Stefan Hajnoczi Message-id: 85ee367bbb993aa23699b44cfedd83b4ea6d5221.1611938319.git.jag.ram= an@oracle.com Signed-off-by: Stefan Hajnoczi --- hw/remote/proxy.c | 84 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) diff --git a/hw/remote/proxy.c b/hw/remote/proxy.c index 555b3103f4..a082709881 100644 --- a/hw/remote/proxy.c +++ b/hw/remote/proxy.c @@ -25,6 +25,8 @@ #include "sysemu/kvm.h" #include "util/event_notifier-posix.c" =20 +static void probe_pci_info(PCIDevice *dev, Error **errp); + static void proxy_intx_update(PCIDevice *pci_dev) { PCIProxyDev *dev =3D PCI_PROXY_DEV(pci_dev); @@ -77,6 +79,7 @@ static void pci_proxy_dev_realize(PCIDevice *device, Erro= r **errp) { ERRP_GUARD(); PCIProxyDev *dev =3D PCI_PROXY_DEV(device); + uint8_t *pci_conf =3D device->config; int fd; =20 if (!dev->fd) { @@ -106,9 +109,14 @@ static void pci_proxy_dev_realize(PCIDevice *device, E= rror **errp) qemu_mutex_init(&dev->io_mutex); qio_channel_set_blocking(dev->ioc, true, NULL); =20 + pci_conf[PCI_LATENCY_TIMER] =3D 0xff; + pci_conf[PCI_INTERRUPT_PIN] =3D 0x01; + proxy_memory_listener_configure(&dev->proxy_listener, dev->ioc); =20 setup_irqfd(dev); + + probe_pci_info(PCI_DEVICE(dev), errp); } =20 static void pci_proxy_dev_exit(PCIDevice *pdev) @@ -274,3 +282,79 @@ const MemoryRegionOps proxy_mr_ops =3D { .max_access_size =3D 8, }, }; + +static void probe_pci_info(PCIDevice *dev, Error **errp) +{ + PCIDeviceClass *pc =3D PCI_DEVICE_GET_CLASS(dev); + uint32_t orig_val, new_val, base_class, val; + PCIProxyDev *pdev =3D PCI_PROXY_DEV(dev); + DeviceClass *dc =3D DEVICE_CLASS(pc); + uint8_t type; + int i, size; + + config_op_send(pdev, PCI_VENDOR_ID, &val, 2, MPQEMU_CMD_PCI_CFGREAD); + pc->vendor_id =3D (uint16_t)val; + + config_op_send(pdev, PCI_DEVICE_ID, &val, 2, MPQEMU_CMD_PCI_CFGREAD); + pc->device_id =3D (uint16_t)val; + + config_op_send(pdev, PCI_CLASS_DEVICE, &val, 2, MPQEMU_CMD_PCI_CFGREAD= ); + pc->class_id =3D (uint16_t)val; + + config_op_send(pdev, PCI_SUBSYSTEM_ID, &val, 2, MPQEMU_CMD_PCI_CFGREAD= ); + pc->subsystem_id =3D (uint16_t)val; + + base_class =3D pc->class_id >> 4; + switch (base_class) { + case PCI_BASE_CLASS_BRIDGE: + set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); + break; + case PCI_BASE_CLASS_STORAGE: + set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); + break; + case PCI_BASE_CLASS_NETWORK: + set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); + break; + case PCI_BASE_CLASS_INPUT: + set_bit(DEVICE_CATEGORY_INPUT, dc->categories); + break; + case PCI_BASE_CLASS_DISPLAY: + set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); + break; + case PCI_BASE_CLASS_PROCESSOR: + set_bit(DEVICE_CATEGORY_CPU, dc->categories); + break; + default: + set_bit(DEVICE_CATEGORY_MISC, dc->categories); + break; + } + + for (i =3D 0; i < PCI_NUM_REGIONS; i++) { + config_op_send(pdev, PCI_BASE_ADDRESS_0 + (4 * i), &orig_val, 4, + MPQEMU_CMD_PCI_CFGREAD); + new_val =3D 0xffffffff; + config_op_send(pdev, PCI_BASE_ADDRESS_0 + (4 * i), &new_val, 4, + MPQEMU_CMD_PCI_CFGWRITE); + config_op_send(pdev, PCI_BASE_ADDRESS_0 + (4 * i), &new_val, 4, + MPQEMU_CMD_PCI_CFGREAD); + size =3D (~(new_val & 0xFFFFFFF0)) + 1; + config_op_send(pdev, PCI_BASE_ADDRESS_0 + (4 * i), &orig_val, 4, + MPQEMU_CMD_PCI_CFGWRITE); + type =3D (new_val & 0x1) ? + PCI_BASE_ADDRESS_SPACE_IO : PCI_BASE_ADDRESS_SPACE_MEMO= RY; + + if (size) { + g_autofree char *name; + pdev->region[i].dev =3D pdev; + pdev->region[i].present =3D true; + if (type =3D=3D PCI_BASE_ADDRESS_SPACE_MEMORY) { + pdev->region[i].memory =3D true; + } + name =3D g_strdup_printf("bar-region-%d", i); + memory_region_init_io(&pdev->region[i].mr, OBJECT(pdev), + &proxy_mr_ops, &pdev->region[i], + name, size); + pci_register_bar(dev, i, type, &pdev->region[i].mr); + } + } +} --=20 2.29.2