From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=209.132.183.28; helo=mx1.redhat.com; envelope-from=lersek@redhat.com; receiver=edk2-devel@lists.01.org Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id DE0F120945BD5 for ; Mon, 25 Sep 2017 12:55:23 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 32115C047B7F; Mon, 25 Sep 2017 19:58:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 32115C047B7F Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=lersek@redhat.com Received: from lacos-laptop-7.usersys.redhat.com (ovpn-120-161.rdu2.redhat.com [10.10.120.161]) by smtp.corp.redhat.com (Postfix) with ESMTP id EDFF060184; Mon, 25 Sep 2017 19:58:33 +0000 (UTC) From: Laszlo Ersek To: edk2-devel-01 Cc: Jordan Justen , Marcel Apfelbaum , Ruiyu Ni Date: Mon, 25 Sep 2017 21:58:19 +0200 Message-Id: <20170925195824.10866-3-lersek@redhat.com> In-Reply-To: <20170925195824.10866-1-lersek@redhat.com> References: <20170925195824.10866-1-lersek@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Mon, 25 Sep 2017 19:58:35 +0000 (UTC) Subject: [PATCH 2/7] OvmfPkg/IndustryStandard: define PCI Capabilities for QEMU's PCI Bridges X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Sep 2017 19:55:24 -0000 QEMU has recently gained the ability to provide various hints about its PCI bridges. The hints take the form of vendor-specific PCI capabilities. Define macros and types under "OvmfPkg/Include/IndustryStandard" to describe these capabilities. The definitions correspond to "docs/pcie_pci_bridge.txt" in the QEMU tree. Said documentation was added in the last commit of the following series: a35fe226558a hw/pci: introduce pcie-pci-bridge device 70e1ee59bb94 hw/pci: introduce bridge-only vendor-specific capability to provide some hints to firmware 226263fb5cda hw/pci: add QEMU-specific PCI capability to the Generic PCI Express Root Port c1800a162765 docs: update documentation considering PCIE-PCI bridge We are going to parse the Resource Reservation Capability in OvmfPkg/PciHotPlugInitDxe, and return the reservation requests to PciBusDxe. Cc: Jordan Justen Cc: Marcel Apfelbaum Cc: Ruiyu Ni Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Laszlo Ersek --- OvmfPkg/Include/IndustryStandard/QemuPciBridgeCapabilities.h | 60 ++++++++++++++++++++ 1 file changed, 60 insertions(+) diff --git a/OvmfPkg/Include/IndustryStandard/QemuPciBridgeCapabilities.h b/OvmfPkg/Include/IndustryStandard/QemuPciBridgeCapabilities.h new file mode 100644 index 000000000000..bf2373c556c4 --- /dev/null +++ b/OvmfPkg/Include/IndustryStandard/QemuPciBridgeCapabilities.h @@ -0,0 +1,60 @@ +/** @file + Macro and type definitions for QEMU's Red Hat vendor-specific PCI + capabilities that provide various hints about PCI Bridges. + + Refer to "docs/pcie_pci_bridge.txt" in the QEMU source directory. + + Copyright (C) 2017, Red Hat, Inc. + + This program and the accompanying materials are licensed and made available + under the terms and conditions of the BSD License which accompanies this + distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT + WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +**/ + +#ifndef __QEMU_PCI_BRIDGE_CAPABILITIES_H__ +#define __QEMU_PCI_BRIDGE_CAPABILITIES_H__ + +#include + +// +// The hints apply to PCI Bridges whose PCI_DEVICE_INDEPENDENT_REGION.VendorId +// equals the following value. +// +#define QEMU_PCI_BRIDGE_VENDOR_ID_REDHAT 0x1B36 + +// +// Common capability header for all hints. +// +#pragma pack (1) +typedef struct { + EFI_PCI_CAPABILITY_VENDOR_HDR VendorHdr; + UINT8 Type; +} QEMU_PCI_BRIDGE_CAPABILITY_HDR; +#pragma pack () + +// +// Values defined for QEMU_PCI_BRIDGE_CAPABILITY_HDR.Type. +// +#define QEMU_PCI_BRIDGE_CAPABILITY_TYPE_RESOURCE_RESERVATION 0x01 + +// +// PCI Resource Reservation structure for when +// QEMU_PCI_BRIDGE_CAPABILITY_HDR.Type equals +// QEMU_PCI_BRIDGE_CAPABILITY_TYPE_RESOURCE_RESERVATION. +// +#pragma pack (1) +typedef struct { + QEMU_PCI_BRIDGE_CAPABILITY_HDR BridgeHdr; + UINT32 BusNumbers; + UINT64 Io; + UINT32 NonPrefetchable32BitMmio; + UINT32 Prefetchable32BitMmio; + UINT64 Prefetchable64BitMmio; +} QEMU_PCI_BRIDGE_CAPABILITY_RESOURCE_RESERVATION; +#pragma pack () + +#endif -- 2.14.1.3.gb7cf6e02401b