From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by spool.mail.gandi.net (Postfix) with ESMTPS id A9338740040 for ; Tue, 12 Dec 2023 13:14:22 +0000 (UTC) DKIM-Signature: a=rsa-sha256; bh=MwJkChQKVQMZdHR4SXdG8yU0kb8rD4jt8/S+4LP34g0=; c=relaxed/simple; d=groups.io; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References:MIME-Version:Precedence:List-Subscribe:List-Help:Sender:List-Id:Mailing-List:Delivered-To:Reply-To:List-Unsubscribe-Post:List-Unsubscribe:Content-Transfer-Encoding; s=20140610; t=1702386861; v=1; b=PAH+x05yJ9JzDkjwfsu4/0i9QRDHwi81CFFSa940ZA4MfvsMElgG5qei6iuk3NfEcr3zad5g 6spsbXggrFvpjdyMQhXl+iMuf2kMMKKuWQhp4+Y6T1tfuSV2USWnDI3y7wqypPpfkE+61qMmWgv sKRTMZdn/0Yto21qkVo0y2ZY= X-Received: by 127.0.0.2 with SMTP id xKJdYY7687511xaD7wBVCZCg; Tue, 12 Dec 2023 05:14:21 -0800 X-Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by mx.groups.io with SMTP id smtpd.web10.1327.1702386859893378703 for ; Tue, 12 Dec 2023 05:14:20 -0800 X-Received: from loongson.cn (unknown [10.2.9.245]) by gateway (Coremail) with SMTP id _____8DxE_CpXHhlG1oAAA--.2122S3; Tue, 12 Dec 2023 21:14:17 +0800 (CST) X-Received: from code-server.gen (unknown [10.2.9.245]) by localhost.localdomain (Coremail) with SMTP id AQAAf8CxXeGoXHhl5qQAAA--.4665S2; Tue, 12 Dec 2023 21:14:16 +0800 (CST) From: "Chao Li" To: devel@edk2.groups.io Cc: Ard Biesheuvel , Jiewen Yao , Jordan Justen , Gerd Hoffmann , Xianglai Li , Bibo Mao Subject: [edk2-devel] [PATCH v4 31/37] OvmfPkg/LoongArchVirt: Add NorFlashQemuLib Date: Tue, 12 Dec 2023 21:14:15 +0800 Message-Id: <20231212131415.2471996-1-lichao@loongson.cn> In-Reply-To: <20231212130932.2467028-1-lichao@loongson.cn> References: <20231212130932.2467028-1-lichao@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8CxXeGoXHhl5qQAAA--.4665S2 X-CM-SenderInfo: xolfxt3r6o00pqjv00gofq/1tbiAQADCGV3wy0H6gAwsr X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Precedence: Bulk List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,lichao@loongson.cn List-Unsubscribe-Post: List-Unsubscribe=One-Click List-Unsubscribe: X-Gm-Message-State: yFvCUz0wDvIC6zUja9Req8Tgx7686176AA= Content-Transfer-Encoding: 8bit X-GND-Status: LEGIT Authentication-Results: spool.mail.gandi.net; dkim=pass header.d=groups.io header.s=20140610 header.b=PAH+x05y; dmarc=none; spf=pass (spool.mail.gandi.net: domain of bounce@groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce@groups.io Add NorFlashQemuLib for LoongArch, it is referenced from ArmVirtPkg. BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584 Cc: Ard Biesheuvel Cc: Jiewen Yao Cc: Jordan Justen Cc: Gerd Hoffmann Signed-off-by: Chao Li Co-authored-by: Xianglai Li Co-authored-by: Bibo Mao --- .../Library/NorFlashQemuLib/NorFlashQemuLib.c | 140 ++++++++++++++++++ .../NorFlashQemuLib/NorFlashQemuLib.inf | 43 ++++++ 2 files changed, 183 insertions(+) create mode 100644 OvmfPkg/LoongArchVirt/Library/NorFlashQemuLib/NorFlashQemuLib.c create mode 100644 OvmfPkg/LoongArchVirt/Library/NorFlashQemuLib/NorFlashQemuLib.inf diff --git a/OvmfPkg/LoongArchVirt/Library/NorFlashQemuLib/NorFlashQemuLib.c b/OvmfPkg/LoongArchVirt/Library/NorFlashQemuLib/NorFlashQemuLib.c new file mode 100644 index 0000000000..578735a7c6 --- /dev/null +++ b/OvmfPkg/LoongArchVirt/Library/NorFlashQemuLib/NorFlashQemuLib.c @@ -0,0 +1,140 @@ +/** @file + + Copyright (c) 2023 Loongson Technology Corporation Limited. All rights reserved.
+ + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include +#include +#include +#include + +#include + +#define QEMU_NOR_BLOCK_SIZE SIZE_128KB + +EFI_STATUS +VirtNorFlashPlatformInitialization ( + VOID + ) +{ + return EFI_SUCCESS; +} + +STATIC VIRT_NOR_FLASH_DESCRIPTION mNorFlashDevices; + +EFI_STATUS +VirtNorFlashPlatformGetDevices ( + OUT VIRT_NOR_FLASH_DESCRIPTION **NorFlashDescriptions, + OUT UINT32 *Count + ) +{ + FDT_CLIENT_PROTOCOL *FdtClient; + INT32 Node; + EFI_STATUS Status; + EFI_STATUS FindNodeStatus; + CONST UINT32 *Reg; + UINT32 PropSize; + UINT64 Base; + UINT64 Size; + + Status = gBS->LocateProtocol ( + &gFdtClientProtocolGuid, + NULL, + (VOID **)&FdtClient + ); + ASSERT_EFI_ERROR (Status); + + FindNodeStatus = FdtClient->FindCompatibleNode ( + FdtClient, + "cfi-flash", + &Node + ); + ASSERT_EFI_ERROR (FindNodeStatus); + + Status = FdtClient->GetNodeProperty ( + FdtClient, + Node, + "reg", + (CONST VOID **)&Reg, + &PropSize + ); + if (EFI_ERROR (Status)) { + DEBUG (( + DEBUG_ERROR, + "%a: GetNodeProperty () failed (Status == %r)\n", + __FUNCTION__, + Status + )); + return Status; + } + + ASSERT ((PropSize % (4 * sizeof (UINT32))) == 0); + + if (PropSize < (4 * sizeof (UINT32))) { + DEBUG (( + DEBUG_ERROR, + "%a: reg node size(%d) is too small \n", + __FUNCTION__, + PropSize + )); + return EFI_NOT_FOUND; + } + + Base = SwapBytes64 (ReadUnaligned64 ((VOID *)&Reg[0])); + Size = SwapBytes64 (ReadUnaligned64 ((VOID *)&Reg[2])); + + mNorFlashDevices.DeviceBaseAddress = (UINTN)Base; + mNorFlashDevices.RegionBaseAddress = (UINTN)Base; + mNorFlashDevices.Size = (UINTN)Size; + mNorFlashDevices.BlockSize = QEMU_NOR_BLOCK_SIZE; + + Status = PcdSet32S (PcdFlashNvStorageVariableBase, Base); + ASSERT_EFI_ERROR (Status); + + /* + * Base is the value of PcdFlashNvStorageVariableBase, + * PcdFlashNvStorageFtwWorkingBase can be got by + * PcdFlashNvStorageVariableBase + PcdFlashNvStorageVariableSize + */ + Base += PcdGet32 (PcdFlashNvStorageVariableSize); + Status = PcdSet32S (PcdFlashNvStorageFtwWorkingBase, Base); + ASSERT_EFI_ERROR (Status); + + /* + * Now,Base is the value of PcdFlashNvStorageFtwWorkingBase, + * PcdFlashNvStorageFtwSpareBase can be got by + * PcdFlashNvStorageFtwWorkingBase + PcdFlashNvStorageFtwWorkingSize. + */ + Base += PcdGet32 (PcdFlashNvStorageFtwWorkingSize); + Status = PcdSet32S (PcdFlashNvStorageFtwSpareBase, Base); + ASSERT_EFI_ERROR (Status); + + // + // UEFI takes ownership of the NOR flash, and exposes its functionality + // through the UEFI Runtime Services GetVariable, SetVariable, etc. This + // means we need to disable it in the device tree to prevent the OS from + // attaching its device driver as well. + // Note that this also hides other flash banks, but the only other flash + // bank we expect to encounter is the one that carries the UEFI executable + // code, which is not intended to be guest updatable, and is usually backed + // in a readonly manner by QEMU anyway. + // + Status = FdtClient->SetNodeProperty ( + FdtClient, + Node, + "status", + "disabled", + sizeof ("disabled") + ); + if (EFI_ERROR (Status)) { + DEBUG ((DEBUG_WARN, "Failed to set NOR flash status to 'disabled'\n")); + } + + *NorFlashDescriptions = &mNorFlashDevices; + *Count = 1; + + return EFI_SUCCESS; +} diff --git a/OvmfPkg/LoongArchVirt/Library/NorFlashQemuLib/NorFlashQemuLib.inf b/OvmfPkg/LoongArchVirt/Library/NorFlashQemuLib/NorFlashQemuLib.inf new file mode 100644 index 0000000000..40952badf8 --- /dev/null +++ b/OvmfPkg/LoongArchVirt/Library/NorFlashQemuLib/NorFlashQemuLib.inf @@ -0,0 +1,43 @@ +## @file +# +# Copyright (c) 2023 Loongson Technology Corporation Limited. All rights reserved.
+# +# SPDX-License-Identifier: BSD-2-Clause-Patent +# +## + +[Defines] + INF_VERSION = 1.29 + BASE_NAME = NorFlashQemuLib + FILE_GUID = E225C90F-6CB9-8AF3-095B-2668FC633A57 + MODULE_TYPE = DXE_DRIVER + VERSION_STRING = 1.0 + LIBRARY_CLASS = VirtNorFlashPlatformLib + +[Sources] + NorFlashQemuLib.c + +[Packages] + EmbeddedPkg/EmbeddedPkg.dec + MdePkg/MdePkg.dec + MdeModulePkg/MdeModulePkg.dec + OvmfPkg/OvmfPkg.dec + +[LibraryClasses] + BaseLib + DebugLib + UefiBootServicesTableLib + +[Protocols] + gFdtClientProtocolGuid ## CONSUMES + +[Depex] + gFdtClientProtocolGuid + +[Pcd] +gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize +gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize +gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize +gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase +gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase +gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase -- 2.27.0 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#112421): https://edk2.groups.io/g/devel/message/112421 Mute This Topic: https://groups.io/mt/103129153/7686176 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [rebecca@openfw.io] -=-=-=-=-=-=-=-=-=-=-=-