From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=2a00:1450:400c:c0c::242; helo=mail-wr0-x242.google.com; envelope-from=ard.biesheuvel@linaro.org; receiver=edk2-devel@lists.01.org Received: from mail-wr0-x242.google.com (mail-wr0-x242.google.com [IPv6:2a00:1450:400c:c0c::242]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 3F26A2035BB1B for ; Fri, 17 Nov 2017 08:05:33 -0800 (PST) Received: by mail-wr0-x242.google.com with SMTP id o14so2527074wrf.9 for ; Fri, 17 Nov 2017 08:09:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=DHYPsHUyJnkXwOtAyJVkdHe735EJ8P/Ym8cSrOQOGYU=; b=O0FtIFAEB3M9otyY/w30bgialXYQGMaKjz6LTNDhwJX5ule4iDBe3Pqjw9xM3Ie2ET gZbVEG/oT+2bZ1kPYzgLQOkEoGyz5zn4hOWQ1QTLdKT+ho1TP5vbBS+Tq5W2LQaGdm8S syOxwG7nh4bKjvc+0eI8nLWVa31hyv0xudhrk= 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:in-reply-to :references; bh=DHYPsHUyJnkXwOtAyJVkdHe735EJ8P/Ym8cSrOQOGYU=; b=dhUrwtpGckDxVgYDArrJO7OCVFARyNqKyz13S6U0bhX9hCkoOfS+40Bn+U9OzaTQ5U ffby7a+7VZEj/N5U3vlvOt+BRbcGtB7zNpau8OjYM7za5h0AcOiBvT6Wea/sdL8y9tZX m8r5OUac4kyJnKQDYBi5U4KccEig6wwXH4ph/kFxYGFPuF78pzb77QF2iV6oXgpzybAM rUsvr4Ltuty5+ZN22jQB//Cc/V0Zv6SScG5jUV1pgxDCSki7Z6UVuzUl5d35PvcwISul w8WGT/H0j3BzeTaXNE42C60tSHgAxB0NIhieKRbgxoHDi3Mu9uZVK0A7Sh73vGwVK3sb EthQ== X-Gm-Message-State: AJaThX4n/aPuq8tsJOBLPZ9zgZIQ/TN14agAOulw2MEWVxMWzBvqe32f kg1GBKIXojrnuCMy+GDylcnEfQ194ik= X-Google-Smtp-Source: AGs4zMZ88cQ+u6qPRa9+SiN7S7DFhFja6mA/9EMjIZACpviryBF++DHGOUkTSCjjqSY6MwmzYxadzg== X-Received: by 10.223.172.245 with SMTP id o108mr5329765wrc.122.1510934982411; Fri, 17 Nov 2017 08:09:42 -0800 (PST) Received: from localhost.localdomain ([160.167.170.128]) by smtp.gmail.com with ESMTPSA id p42sm5575959wrb.28.2017.11.17.08.09.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 17 Nov 2017 08:09:41 -0800 (PST) From: Ard Biesheuvel To: edk2-devel@lists.01.org, lersek@redhat.com Cc: leif.lindholm@linaro.org, Ard Biesheuvel Date: Fri, 17 Nov 2017 16:09:09 +0000 Message-Id: <20171117160913.17292-12-ard.biesheuvel@linaro.org> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20171117160913.17292-1-ard.biesheuvel@linaro.org> References: <20171117160913.17292-1-ard.biesheuvel@linaro.org> Subject: [PATCH 11/15] ArmVirtPkg/ArmVirtXen: add ArmVirtMemInfoLib implementation 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: Fri, 17 Nov 2017 16:05:33 -0000 Clone the existing ArmPlatformGetVirtualMemoryMap () for this platform, clean it up slightly (by using a static buffer rather than a heap allocation, and removing the support for uncached DRAM mappings), and turn it into a new ArmVirtMemInfoLib implementation. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel --- ArmVirtPkg/ArmVirtXen.dsc | 1 + ArmVirtPkg/Library/XenVirtMemInfoLib/AArch64/PhysAddrTop.S | 39 +++++++++++++ ArmVirtPkg/Library/XenVirtMemInfoLib/Arm/PhysAddrTop.S | 24 ++++++++ ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.c | 61 ++++++++++++++++++++ ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.inf | 41 +++++++++++++ 5 files changed, 166 insertions(+) diff --git a/ArmVirtPkg/ArmVirtXen.dsc b/ArmVirtPkg/ArmVirtXen.dsc index 7a443483d1ac..3df684d13cb0 100644 --- a/ArmVirtPkg/ArmVirtXen.dsc +++ b/ArmVirtPkg/ArmVirtXen.dsc @@ -44,6 +44,7 @@ [LibraryClasses] VirtioMmioDeviceLib|OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceLib.inf ArmPlatformLib|ArmVirtPkg/Library/ArmXenRelocatablePlatformLib/ArmXenRelocatablePlatformLib.inf + ArmVirtMemInfoLib|ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.inf TimerLib|ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.inf diff --git a/ArmVirtPkg/Library/XenVirtMemInfoLib/AArch64/PhysAddrTop.S b/ArmVirtPkg/Library/XenVirtMemInfoLib/AArch64/PhysAddrTop.S new file mode 100644 index 000000000000..a1f6a194d59b --- /dev/null +++ b/ArmVirtPkg/Library/XenVirtMemInfoLib/AArch64/PhysAddrTop.S @@ -0,0 +1,39 @@ +# +# Copyright (c) 2011-2013, ARM Limited. All rights reserved. +# Copyright (c) 2016-2017, Linaro Limited. All rights reserved. +# +# 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. +# +# + +#include + +//EFI_PHYSICAL_ADDRESS +//GetPhysAddrTop ( +// VOID +// ); +ASM_FUNC(ArmGetPhysAddrTop) + mrs x0, id_aa64mmfr0_el1 + adr x1, .LPARanges + and x0, x0, #7 + ldrb w1, [x1, x0] + mov x0, #1 + lsl x0, x0, x1 + ret + +// +// Bits 0..2 of the AA64MFR0_EL1 system register encode the size of the +// physical address space support on this CPU: +// 0 == 32 bits, 1 == 36 bits, etc etc +// 6 and 7 are reserved +// +.LPARanges: + .byte 32, 36, 40, 42, 44, 48, -1, -1 + +ASM_FUNCTION_REMOVE_IF_UNREFERENCED diff --git a/ArmVirtPkg/Library/XenVirtMemInfoLib/Arm/PhysAddrTop.S b/ArmVirtPkg/Library/XenVirtMemInfoLib/Arm/PhysAddrTop.S new file mode 100644 index 000000000000..9cd81529fb3d --- /dev/null +++ b/ArmVirtPkg/Library/XenVirtMemInfoLib/Arm/PhysAddrTop.S @@ -0,0 +1,24 @@ +# +# Copyright (c) 2011-2013, ARM Limited. All rights reserved. +# Copyright (c) 2014-2017, Linaro Limited. All rights reserved. +# +# 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. +# +# + +#include + +//EFI_PHYSICAL_ADDRESS +//GetPhysAddrTop ( +// VOID +// ); +ASM_FUNC(ArmGetPhysAddrTop) + mov r0, #0x00000000 + mov r1, #0x10000 + bx lr diff --git a/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.c b/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.c new file mode 100644 index 000000000000..cc806b474560 --- /dev/null +++ b/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.c @@ -0,0 +1,61 @@ +/** @file + + Copyright (c) 2014-2017, Linaro Limited. All rights reserved. + + 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. + +**/ + +#include +#include +#include + +STATIC ARM_MEMORY_REGION_DESCRIPTOR mVirtualMemoryTable[2]; + +EFI_PHYSICAL_ADDRESS +ArmGetPhysAddrTop ( + VOID + ); + +/** + Return the Virtual Memory Map of your platform + + This Virtual Memory Map is used by MemoryInitPei Module to initialize the MMU + on your platform. + + @param[out] VirtualMemoryMap Array of ARM_MEMORY_REGION_DESCRIPTOR + describing a Physical-to-Virtual Memory + mapping. This array must be ended by a + zero-filled entry + +**/ +VOID +ArmVirtGetMemoryMap ( + OUT ARM_MEMORY_REGION_DESCRIPTOR **VirtualMemoryMap + ) +{ + ASSERT (VirtualMemoryMap != NULL); + + // + // Map the entire physical memory space as cached. The only device + // we care about is the GIC, which will be stage 2 mapped as a device + // by the hypervisor, overriding the cached mapping we install here. + // + mVirtualMemoryTable[0].PhysicalBase = 0x0; + mVirtualMemoryTable[0].VirtualBase = 0x0; + mVirtualMemoryTable[0].Length = ArmGetPhysAddrTop (); + mVirtualMemoryTable[0].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK; + + mVirtualMemoryTable[1].PhysicalBase = 0x0; + mVirtualMemoryTable[1].VirtualBase = 0x0; + mVirtualMemoryTable[1].Length = 0x0; + mVirtualMemoryTable[1].Attributes = 0x0; + + *VirtualMemoryMap = mVirtualMemoryTable; +} diff --git a/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.inf b/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.inf new file mode 100644 index 000000000000..cd4c805a4db9 --- /dev/null +++ b/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.inf @@ -0,0 +1,41 @@ +#/* @file +# +# Copyright (c) 2011-2015, ARM Limited. All rights reserved. +# Copyright (c) 2014-2017, Linaro Limited. All rights reserved. +# +# 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. +# +#*/ + +[Defines] + INF_VERSION = 0x0001001A + BASE_NAME = XenVirtMemInfoLib + FILE_GUID = 40d1f8f5-4dfe-4e0f-9a15-b1de9dc9f4ed + MODULE_TYPE = BASE + VERSION_STRING = 1.0 + LIBRARY_CLASS = ArmVirtMemInfoLib + +[Sources] + XenVirtMemInfoLib.c + +[Sources.ARM] + Arm/PhysAddrTop.S + +[Sources.AARCH64] + AArch64/PhysAddrTop.S + +[Packages] + ArmPkg/ArmPkg.dec + ArmVirtPkg/ArmVirtPkg.dec + MdeModulePkg/MdeModulePkg.dec + MdePkg/MdePkg.dec + +[LibraryClasses] + ArmLib + DebugLib -- 2.11.0