From patchwork Tue Nov 26 11:21:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= X-Patchwork-Id: 845565 Delivered-To: patch@linaro.org Received: by 2002:a5d:6989:0:b0:382:43a8:7b94 with SMTP id g9csp155469wru; Tue, 26 Nov 2024 03:25:47 -0800 (PST) X-Forwarded-Encrypted: i=2; AJvYcCX6I0PvZW32SnXBrhno+nxI3sDCODkmQGx9XRrgXsgXnXJCF0zIw1RzpUJF4oGE/i63pwVh5Q==@linaro.org X-Google-Smtp-Source: AGHT+IGQLV3WtayIKxavdVbCPQEbP8aOpvWfvHxOZYLvmZ1KTYwTgy+4tA3SZXbizy64w55xMrUf X-Received: by 2002:a05:6214:2462:b0:6d4:ab3:e19b with SMTP id 6a1803df08f44-6d4513494e5mr244805976d6.42.1732620347386; Tue, 26 Nov 2024 03:25:47 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1732620347; cv=none; d=google.com; s=arc-20240605; b=c1nNj4fAQlrgx8xw2y8AqUNIIRQHM17+FDllvK5mo7qCvGEhxMnJbzPMt6E0IZr+G2 dWFiuXjc2lar0xRqgEV0MMdpQGa8obHdDedsUEbxr1/bkMQUaNsMRYA9qSlsjmGQLW/v Drogp6MVz+M5xmnmUbpwFjT20dXsogQ9rCZwnvPSuhpiYK4uvTSw+0o89jihPeCGouVh j+rz0xEFsy5IpzrqEjthisXMvn/kJatRxW5vn72LQIabvTMCmLuIUn85EC7eLs8uc6c3 pWsvXq1Xem2O2JRwhHheMSc+/CCH7mYm6yK0RGqa8p+Fb0LlF896J0rT6aWdh23I59L0 FhQQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:message-id:date:subject:cc:to:from:dkim-signature; bh=KF5+Q+1rOwwX8eIZyyP/Swk9x61oFbeTaj2aNqOzoek=; fh=siS/4HMv/4Bjpv+J3MqwgZ5TPB6jtxhL8giIGJt6+cQ=; b=PmRYULQfHFZOaV4KRs3qcPKs5UNkHCt6XKbBXqTCjkP02Wz4MnlYZECsu9DrnEjRdc Fcg9j2cgDRIROfPrqoSvl9lPZpc70+ZGAQlpuLwrc+SqhyewpEBRtuDo5vlvwmjDRyyB y/VXv04kpVwlMl7MIHiohjdVKLZw6rtSS8f5pfELxcvhPuR5nGeo3gfvVvGWFG3Bnkhj S1RwYbi1RQyDmAG6D5PDBehASguFWG2y4L+Xl1QhzvuUJ8ygrdz31qtyA9qb5i+Cdez3 NHGRUDVyA0hP8ZsN7872AP9kzSVeqJQweGbkXEDdDRs+0MM+3ySEF6/4G0la/ZQylSB5 wgOA==; dara=google.com ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=uqspTHG7; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org; dara=neutral header.i=@linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id 6a1803df08f44-6d451b6beb7si117632606d6.446.2024.11.26.03.25.47 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 26 Nov 2024 03:25:47 -0800 (PST) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=uqspTHG7; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org; dara=neutral header.i=@linaro.org Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tFteA-0003gH-G1; Tue, 26 Nov 2024 06:22:22 -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 1tFte9-0003fb-MQ for qemu-devel@nongnu.org; Tue, 26 Nov 2024 06:22:21 -0500 Received: from mail-wr1-x42a.google.com ([2a00:1450:4864:20::42a]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1tFte6-0002Vh-Ba for qemu-devel@nongnu.org; Tue, 26 Nov 2024 06:22:21 -0500 Received: by mail-wr1-x42a.google.com with SMTP id ffacd0b85a97d-382433611d0so4575779f8f.3 for ; Tue, 26 Nov 2024 03:22:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1732620135; x=1733224935; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=KF5+Q+1rOwwX8eIZyyP/Swk9x61oFbeTaj2aNqOzoek=; b=uqspTHG7nWNYGC04V7d9iVNSCuRszDF0T0PhCE1EP+v8tqK70adGQPBqRqrsUSt2ue 58nMqaRi8CsezZLP2+N82HflK4ah5bGK/hVF0Q3eOy1BO+bq8rLjK2HELm9mQXBqCQtZ +Eyls/Md6HqHay4nxB1hV37t+N9PwFXD8T0x1eMyNphvFNIXm+jwbxs6lM3DpkVs8lrr /gHvRJm+XqD9dWmgNaZg8414n/G3KFyzMkuuJKdfVeAmmqoSCwpZckJz8KgFmpyapblT UEteKKL9q10R1bZxLVmc0wKGRrQoEyvrYD2Bn+ztqkshyJWQevxmSmHefaftZuPKhDQz 0oSw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1732620135; x=1733224935; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=KF5+Q+1rOwwX8eIZyyP/Swk9x61oFbeTaj2aNqOzoek=; b=FuSu+JSWvnMMsOKwb3Fi3VTJYTX0WtFvNjVnANIs30zX3ySEtmyYWof1rENbgS4BQt 2mhaWAv15uL30QN62yKPtjKLPY7WmxbMkGJ5QCM1+LwLqNT2+ce4i8MndFeUkMd2TZVh XJ0e2l09m83cw0AlwYXmbdTv8L2h19WQ/t8YPRHxJNrfjf7+0vR+sw6zaGQfaplSTcXJ L+7aonoPQItE/U29yww0apsi7oEz9hKPRyrgPGprEbqFEN7DsjZOg3Px4Aq1Iul14oqp M6YO/FmK8H647/lebKYeucqrRPW+faTu/O5353fEkC2oA/k151VJhRuKDs42ySVfcR2c kXcw== X-Gm-Message-State: AOJu0YwG0K4k9f/jW7PPOVq1910MOFtOmaLi+B7PHzyKmMuWeVGg6GLe zyinoJP3WKCw18zFMMpQhR77OKCvTaZ15nSNYpSiFm6lHpOnVKR7fKIXa+OjqZiTpQwrRESKaGw Q X-Gm-Gg: ASbGncvuiZ8dbsMQnb8dwCJUkykpcxNsJOdS9oxrNDafwndrfPcyA1S1gfNTWNs+EVp Goc1fW1cHeVW2vDY3T0Zpcm8ydfFg4VawZ50Yla310APw+9vSVHoiBWQ0fv9UuuG2RjGnhgVU6q OMipMFTyg6GlDyAkZYPMnD9D7Yqd2nh4+m6qx8i/RuNO5epUfeKSfwBHtjTtWokvPHOnSo25bSB kvtV5kvVGAjxx6rQLPvgIvFNVOCVW7eBvjmy5DrYCmQpMh6m1oIb0nPfh9O/J3cUrc/YXRi X-Received: by 2002:a5d:5f53:0:b0:382:46ea:1113 with SMTP id ffacd0b85a97d-38260b3cc31mr15783506f8f.4.1732620135272; Tue, 26 Nov 2024 03:22:15 -0800 (PST) Received: from localhost.localdomain ([176.176.143.205]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3825fbc34bdsm13398468f8f.78.2024.11.26.03.22.13 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 26 Nov 2024 03:22:14 -0800 (PST) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, qemu-s390x@nongnu.org, Thomas Huth , "Michael S. Tsirkin" , qemu-riscv@nongnu.org, Marcel Apfelbaum , Peter Maydell , qemu-arm@nongnu.org, Paolo Bonzini , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Subject: [PATCH-for-10.0 v2 00/13] hw/boards: Remove legacy MachineClass::pci_allow_0_address flag Date: Tue, 26 Nov 2024 12:21:59 +0100 Message-ID: <20241126112212.64524-1-philmd@linaro.org> X-Mailer: git-send-email 2.45.2 MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::42a; envelope-from=philmd@linaro.org; helo=mail-wr1-x42a.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Since v1: - Looked at previous analysis from Peter [1] - Invert logic so "allow address 0 accesses" is default --- This series aims to remove a legacy field from MachineClass. Why? Because it doesn't scale on heterogeneous machine where different host bridges are created. Rather than a global exposed to all machines, use a pci-bus specific flag on each machine requiring it, propagated by the host bridge device. No logical change intended, only machines previously using pci_allow_0_address do not set refuse-bar-at-addr-0. Presumably various machines neither need to set this 'refuse-bar-at-addr-0' flag, but updating that is deferred to each machine maintainer since I don't have the knowledge and sufficient test suite IMHO. [1] https://lore.kernel.org/qemu-devel/20241125140535.4526-1-philmd@linaro.org/ [2] https://lore.kernel.org/qemu-devel/1444683308-30543-1-git-send-email-agordeev@redhat.com/T/#u Philippe Mathieu-Daudé (13): hw/pci: Do not declare PCIBus::flags mask as enum hw/pci-bridge: Initialize bridge with parent bus flags hw/pci: Factor machine_refuses_bar_at_addr_0() helper out hw/pci: Introduce PCIBusFlag::PCI_BUS_BAR_AT_ADDR0_REFUSED hw/pci: Propagate bar_at_addr_0_refused to pci_root_bus_internal_init() hw/pci: Propagate bar_at_addr_0_refused to pci_root_bus_init() hw/pci: Propagate bar_at_addr_0_refused to pci_root_bus_new() hw/pci: Propagate bar_at_addr_0_refused to pci_register_root_bus() hw/ppc/spapr: Create host bridge setting bar_at_addr_0_refused=false hw/pci-host/gpex: Expose 'refuse-bar-at-addr-0' property hw/arm/virt: Create GPEX host bridge without refuse-bar-at-addr-0 hw/riscv/virt: Create GPEX host bridge without refuse-bar-at-addr-0 hw/pci/pci: Remove legacy MachineClass::pci_allow_0_address flag include/hw/boards.h | 1 - include/hw/pci-host/gpex.h | 1 + include/hw/pci/pci.h | 8 +++++--- include/hw/pci/pci_bus.h | 10 ++++++++-- hw/alpha/typhoon.c | 2 +- hw/arm/sbsa-ref.c | 1 - hw/arm/virt.c | 1 - hw/i386/microvm.c | 2 ++ hw/loongarch/virt.c | 2 ++ hw/mips/loongson3_virt.c | 2 ++ hw/openrisc/virt.c | 2 ++ hw/pci-bridge/pci_expander_bridge.c | 17 +++++++++++----- hw/pci-host/articia.c | 3 ++- hw/pci-host/astro.c | 3 ++- hw/pci-host/bonito.c | 2 +- hw/pci-host/designware.c | 2 +- hw/pci-host/dino.c | 2 +- hw/pci-host/gpex.c | 5 ++++- hw/pci-host/grackle.c | 2 +- hw/pci-host/gt64120.c | 2 +- hw/pci-host/i440fx.c | 2 +- hw/pci-host/mv64361.c | 2 +- hw/pci-host/pnv_phb3.c | 2 +- hw/pci-host/pnv_phb4.c | 2 +- hw/pci-host/ppc440_pcix.c | 2 +- hw/pci-host/ppc4xx_pci.c | 2 +- hw/pci-host/ppce500.c | 3 ++- hw/pci-host/q35.c | 2 +- hw/pci-host/raven.c | 2 +- hw/pci-host/remote.c | 2 +- hw/pci-host/sabre.c | 2 +- hw/pci-host/sh_pci.c | 2 +- hw/pci-host/uninorth.c | 8 ++++---- hw/pci-host/versatile.c | 2 +- hw/pci-host/xilinx-pcie.c | 2 +- hw/pci/pci.c | 31 ++++++++++++++++++----------- hw/pci/pci_bridge.c | 1 + hw/ppc/ppc440_uc.c | 2 +- hw/ppc/spapr.c | 1 - hw/ppc/spapr_pci.c | 2 +- hw/riscv/virt.c | 1 - hw/s390x/s390-pci-bus.c | 2 +- hw/xen/xen-pvh-common.c | 2 ++ hw/xtensa/virt.c | 2 ++ 44 files changed, 94 insertions(+), 57 deletions(-)