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[84.109.29.12]) by smtp.gmail.com with ESMTPSA id w1sm9681852wmc.19.2021.08.02.02.00.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Aug 2021 02:00:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=PhB4PyOnyO327paQU/h6hIMA6+zNl614oQl47zLAr98=; b=CH1JIHVY29VfvLhX0phcCNegDzUwXgqHq7Bfsf70tsHPrZJJw78EBYZQow95fw7Psd OXd3Cbl7f8thSiGZAkhnrcUIw9NyX+JoHLeLSQ3BghCgoYPHtRF07atEqnYAUiJPR4fQ aRuBu0NTZqQE6DxbhiglXtKjZzii/0nW26OxKMF+W6xrOJ6WcsH4ZGkVjxRntI6C1drW 8+vwX0451gqzS8RI3ri2+zU2stQAAppLRBaujrU5EOuOHHpCUuukJcolB1iTxl+0/b4c HQMlKFD8Bj/KrEQvtCPH+gxF8/+o4eZQl1TBnsGxKbQRewQF/8jJD8teosRAOwVKRGrN gyww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=PhB4PyOnyO327paQU/h6hIMA6+zNl614oQl47zLAr98=; b=TQVPYgJh4FbQ805bc6XItT8OXCuzPJOy3O7fmWIQL5XXv0SPHY4fZjay0D0uesRqai 4hjqSI3XKzgKz4ArYbrZjCcS+8zS5yMUoTC/d2+Fw94LE1sCTJV4DDQFYtDsJ315O5h7 QhStaRBXIZszL2RpQ6MkFGtt0d5OeeeUGz0e5SnBLULzPE7pjxtyUdqcOtKiM6lUAR1i muULYZRU74pDSfuX5H+vsa66uRg+SaXHFBv1K/AZNb6ZF5zWJS8WjPvNmjjU57E5Tb+0 2dPFnFxLN6PRsClqXTW9Cn3KU9QwUo/UELQNomn7lr6JSvBInlZqsRq6JvpAbnVjGAM9 vBhg== X-Gm-Message-State: AOAM53195lCxXJORuaG6Pt2/BeU3w41RayEGW1T8Kbsf1SWnQHR+bkuD iK8qZxKmIYTS+5Qur4Ql/lyYuNZI88o= X-Google-Smtp-Source: ABdhPJxpno+FApFF/9e3JZhOxtWqWPndhjdEGNTCAcIZl39qySiDBDaV3K/nwW8onDM6V5MgtjSakQ== X-Received: by 2002:a1c:1bcd:: with SMTP id b196mr15372105wmb.160.1627894859775; Mon, 02 Aug 2021 02:00:59 -0700 (PDT) From: Marcel Apfelbaum X-Google-Original-From: Marcel Apfelbaum To: qemu-devel@nongnu.org Subject: [PATCH v2] hw/pcie-root-port: Fix hotplug for PCI devices requiring IO Date: Mon, 2 Aug 2021 12:00:57 +0300 Message-Id: <20210802090057.1709775-1-marcel@redhat.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 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=2a00:1450:4864:20::330; envelope-from=marcel.apfelbaum@gmail.com; helo=mail-wm1-x330.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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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: marcel@redhat.com, imammedo@redhat.com, mst@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1627894925793100001 Content-Type: text/plain; charset="utf-8" Q35 has now ACPI hotplug enabled by default for PCI(e) devices. As opposed to native PCIe hotplug, guests like Fedora 34 will not assign IO range to pcie-root-ports not supporting native hotplug, resulting into a regression. Reproduce by: qemu-bin -M q35 -device pcie-root-port,id=3Dp1 -monitor stdio device_add e1000,bus=3Dp1 In the Guest OS the respective pcie-root-port will have the IO range disabled. Fix it by setting the "reserve-io" hint capability of the pcie-root-ports so the firmware will allocate the IO range instead. Acked-by: Igor Mammedov Signed-off-by: Marcel Apfelbaum --- v2: - improve commit message (Igor) hw/pci-bridge/gen_pcie_root_port.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/hw/pci-bridge/gen_pcie_root_port.c b/hw/pci-bridge/gen_pcie_ro= ot_port.c index ec9907917e..20099a8ae3 100644 --- a/hw/pci-bridge/gen_pcie_root_port.c +++ b/hw/pci-bridge/gen_pcie_root_port.c @@ -28,6 +28,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(GenPCIERootPort, GEN_PCIE_ROOT= _PORT) (GEN_PCIE_ROOT_PORT_AER_OFFSET + PCI_ERR_SIZEOF) =20 #define GEN_PCIE_ROOT_PORT_MSIX_NR_VECTOR 1 +#define GEN_PCIE_ROOT_DEFAULT_IO_RANGE 4096 =20 struct GenPCIERootPort { /*< private >*/ @@ -75,6 +76,7 @@ static bool gen_rp_test_migrate_msix(void *opaque, int ve= rsion_id) static void gen_rp_realize(DeviceState *dev, Error **errp) { PCIDevice *d =3D PCI_DEVICE(dev); + PCIESlot *s =3D PCIE_SLOT(d); GenPCIERootPort *grp =3D GEN_PCIE_ROOT_PORT(d); PCIERootPortClass *rpc =3D PCIE_ROOT_PORT_GET_CLASS(d); Error *local_err =3D NULL; @@ -85,6 +87,9 @@ static void gen_rp_realize(DeviceState *dev, Error **errp) return; } =20 + if (grp->res_reserve.io =3D=3D -1 && s->hotplug && !s->native_hotplug)= { + grp->res_reserve.io =3D GEN_PCIE_ROOT_DEFAULT_IO_RANGE; + } int rc =3D pci_bridge_qemu_reserve_cap_init(d, 0, grp->res_reserve, errp); =20 --=20 2.31.1