From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=2a00:1450:4864:20::343; helo=mail-wm1-x343.google.com; envelope-from=ard.biesheuvel@linaro.org; receiver=edk2-devel@lists.01.org Received: from mail-wm1-x343.google.com (mail-wm1-x343.google.com [IPv6:2a00:1450:4864:20::343]) (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 E7EA72119377F for ; Mon, 26 Nov 2018 14:38:30 -0800 (PST) Received: by mail-wm1-x343.google.com with SMTP id c126so20171642wmh.0 for ; Mon, 26 Nov 2018 14:38:30 -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 :mime-version:content-transfer-encoding; bh=8eFcxXF0XgOS+G+mF3nhx0I+1koThYP2kjgeg3TYCGg=; b=VEFCRhE0RQZPVzLJtBB18CQTTApkFfxkQuFTh5nCnKEg+hc+gVYuqOufkz1cevXOef SL3zTlGMrUdTiaYmzvehYZO8diNwkzrWphNNJh4VRIkHHEKQrcp5G2zPSuihRePLhTHv L12tFiUIVtMDD3PYEI9zUahjfBW46kfZsTBSE= 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:mime-version:content-transfer-encoding; bh=8eFcxXF0XgOS+G+mF3nhx0I+1koThYP2kjgeg3TYCGg=; b=R88YRzcDwfNHp0o+TzFCgDWFpY+pFCMK5kJKKLusOTXhYbI3F2fX8ZiOyxCVKN6prw OoXZ70a0UhOu6YFmB3MJH0QqTKNRyzFWDg3aZCf0Q1lqJe3wkQQ/AXLLJb28v34lTfRt q2dZFFUNu8Gb4sDNzAM+r75hlNVKKerfnPBxVKDfqUeBsU1VqL+WIm56Y+F2L4zyfBfK oqj1DbbL38GQB4O4NvOkRNP/Y0UOGvAW0xAmh3LKr5UbfkF13rdIa1II9TZMUKGiCep2 PCGOTJBJt5npe3nmWaK3vQnbx2JqyYpR/XDkwShpGmKiUy/aLiha6HfwZTFImF9TEUgy RCww== X-Gm-Message-State: AA+aEWYkfE3leGcY4QiWXZ/KBKDY5+VynewpO7xA/EMDQqHNUq440K2s y5BenFXHLwf80l91RpmYGOj4IXKSPa4= X-Google-Smtp-Source: AFSGD/WsSvZwGRtdakuxdmw8WySJ2Dl3MCembF9/Y/pLj2Xu18yJ7iX/aXHLWniPS+GxrHd/zb0DmQ== X-Received: by 2002:a1c:8302:: with SMTP id f2mr4632765wmd.9.1543271908713; Mon, 26 Nov 2018 14:38:28 -0800 (PST) Received: from harold.home ([2a01:cb1d:112:6f00:8571:4c23:4f5c:5eb7]) by smtp.gmail.com with ESMTPSA id v5sm2641916wrn.71.2018.11.26.14.38.26 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 26 Nov 2018 14:38:27 -0800 (PST) From: Ard Biesheuvel To: edk2-devel@lists.01.org Cc: Ard Biesheuvel , Laszlo Ersek , Leif Lindholm , Eric Auger , Andrew Jones , Philippe Mathieu-Daude , Julien Grall Date: Mon, 26 Nov 2018 23:37:50 +0100 Message-Id: <20181126223801.17121-3-ard.biesheuvel@linaro.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181126223801.17121-1-ard.biesheuvel@linaro.org> References: <20181126223801.17121-1-ard.biesheuvel@linaro.org> MIME-Version: 1.0 Subject: [PATCH v2 02/13] ArmVirtPkg: refactor reading of the physical address space size X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Nov 2018 22:38:31 -0000 Content-Transfer-Encoding: 8bit In preparation of dropping the hardcoded 40-bit limit on the physical address space when running under virtualization, let's refactor the code a bit so we read the hardware limit in a single place. Note that the hardware capabilities may exceed what the architecture permits when using 4 KB pages, so we need to take ARM_MMU_IDMAP_RANGE into account as well. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel --- ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.inf | 6 --- ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoPeiLib.inf | 6 --- ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.inf | 6 --- ArmVirtPkg/Include/Library/ArmVirtMemInfoLib.h | 1 + ArmVirtPkg/Library/ArmVirtMemoryInitPeiLib/ArmVirtMemoryInitPeiLib.c | 5 ++- ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.c | 8 +--- ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.c | 8 +--- ArmVirtPkg/Library/QemuVirtMemInfoLib/AArch64/PhysAddrTop.S | 39 -------------------- ArmVirtPkg/Library/QemuVirtMemInfoLib/Arm/PhysAddrTop.S | 24 ------------ ArmVirtPkg/Library/XenVirtMemInfoLib/AArch64/PhysAddrTop.S | 39 -------------------- ArmVirtPkg/Library/XenVirtMemInfoLib/Arm/PhysAddrTop.S | 24 ------------ 11 files changed, 9 insertions(+), 157 deletions(-) diff --git a/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.inf b/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.inf index c72a97f9e78a..f2c461e3b55a 100644 --- a/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.inf +++ b/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.inf @@ -24,12 +24,6 @@ [Defines] [Sources] QemuVirtMemInfoLib.c -[Sources.ARM] - Arm/PhysAddrTop.S - -[Sources.AARCH64] - AArch64/PhysAddrTop.S - [Packages] ArmPkg/ArmPkg.dec ArmVirtPkg/ArmVirtPkg.dec diff --git a/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoPeiLib.inf b/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoPeiLib.inf index e4032d3efb53..f54fb51ee1d4 100644 --- a/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoPeiLib.inf +++ b/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoPeiLib.inf @@ -26,12 +26,6 @@ [Sources] QemuVirtMemInfoLib.c QemuVirtMemInfoPeiLibConstructor.c -[Sources.ARM] - Arm/PhysAddrTop.S - -[Sources.AARCH64] - AArch64/PhysAddrTop.S - [Packages] ArmPkg/ArmPkg.dec ArmVirtPkg/ArmVirtPkg.dec diff --git a/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.inf b/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.inf index cd4c805a4db9..ae107810e927 100644 --- a/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.inf +++ b/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.inf @@ -24,12 +24,6 @@ [Defines] [Sources] XenVirtMemInfoLib.c -[Sources.ARM] - Arm/PhysAddrTop.S - -[Sources.AARCH64] - AArch64/PhysAddrTop.S - [Packages] ArmPkg/ArmPkg.dec ArmVirtPkg/ArmVirtPkg.dec diff --git a/ArmVirtPkg/Include/Library/ArmVirtMemInfoLib.h b/ArmVirtPkg/Include/Library/ArmVirtMemInfoLib.h index bdf1c513bc6d..15562b35c730 100644 --- a/ArmVirtPkg/Include/Library/ArmVirtMemInfoLib.h +++ b/ArmVirtPkg/Include/Library/ArmVirtMemInfoLib.h @@ -35,6 +35,7 @@ VOID EFIAPI ArmVirtGetMemoryMap ( + IN EFI_PHYSICAL_ADDRESS TopOfAddressSpace, OUT ARM_MEMORY_REGION_DESCRIPTOR **VirtualMemoryMap ); diff --git a/ArmVirtPkg/Library/ArmVirtMemoryInitPeiLib/ArmVirtMemoryInitPeiLib.c b/ArmVirtPkg/Library/ArmVirtMemoryInitPeiLib/ArmVirtMemoryInitPeiLib.c index 05afd1282422..f8c8af987d20 100644 --- a/ArmVirtPkg/Library/ArmVirtMemoryInitPeiLib/ArmVirtMemoryInitPeiLib.c +++ b/ArmVirtPkg/Library/ArmVirtMemoryInitPeiLib/ArmVirtMemoryInitPeiLib.c @@ -15,6 +15,7 @@ #include +#include #include #include #include @@ -39,7 +40,9 @@ InitMmu ( RETURN_STATUS Status; // Get Virtual Memory Map from the Platform Library - ArmVirtGetMemoryMap (&MemoryTable); + ArmVirtGetMemoryMap (MIN (LShiftU64 (1ULL, ArmGetPhysicalAddressBits ()), + ARM_MMU_IDMAP_RANGE), + &MemoryTable); //Note: Because we called PeiServicesInstallPeiMemory() before to call InitMmu() the MMU Page Table resides in // DRAM (even at the top of DRAM as it is the first permanent memory allocation) diff --git a/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.c b/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.c index 760bcc169cf4..a80454c4802e 100644 --- a/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.c +++ b/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.c @@ -21,11 +21,6 @@ // Number of Virtual Memory Map Descriptors #define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS 5 -EFI_PHYSICAL_ADDRESS -ArmGetPhysAddrTop ( - VOID - ); - /** Return the Virtual Memory Map of your platform @@ -41,6 +36,7 @@ ArmGetPhysAddrTop ( **/ VOID ArmVirtGetMemoryMap ( + IN EFI_PHYSICAL_ADDRESS TopOfAddressSpace, OUT ARM_MEMORY_REGION_DESCRIPTOR **VirtualMemoryMap ) { @@ -80,7 +76,7 @@ ArmVirtGetMemoryMap ( // Peripheral space after DRAM TopOfMemory = MIN (1ULL << FixedPcdGet8 (PcdPrePiCpuMemorySize), - ArmGetPhysAddrTop ()); + TopOfAddressSpace); VirtualMemoryTable[2].PhysicalBase = VirtualMemoryTable[0].Length + VirtualMemoryTable[1].Length; VirtualMemoryTable[2].VirtualBase = VirtualMemoryTable[2].PhysicalBase; VirtualMemoryTable[2].Length = TopOfMemory - diff --git a/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.c b/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.c index 88ff3167cbfd..3d4e3e38c3f1 100644 --- a/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.c +++ b/ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.c @@ -18,11 +18,6 @@ STATIC ARM_MEMORY_REGION_DESCRIPTOR mVirtualMemoryTable[2]; -EFI_PHYSICAL_ADDRESS -ArmGetPhysAddrTop ( - VOID - ); - /** Return the Virtual Memory Map of your platform @@ -39,6 +34,7 @@ ArmGetPhysAddrTop ( VOID EFIAPI ArmVirtGetMemoryMap ( + IN EFI_PHYSICAL_ADDRESS TopOfAddressSpace, OUT ARM_MEMORY_REGION_DESCRIPTOR **VirtualMemoryMap ) { @@ -51,7 +47,7 @@ ArmVirtGetMemoryMap ( // mVirtualMemoryTable[0].PhysicalBase = 0x0; mVirtualMemoryTable[0].VirtualBase = 0x0; - mVirtualMemoryTable[0].Length = ArmGetPhysAddrTop (); + mVirtualMemoryTable[0].Length = TopOfAddressSpace; mVirtualMemoryTable[0].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK; mVirtualMemoryTable[1].PhysicalBase = 0x0; diff --git a/ArmVirtPkg/Library/QemuVirtMemInfoLib/AArch64/PhysAddrTop.S b/ArmVirtPkg/Library/QemuVirtMemInfoLib/AArch64/PhysAddrTop.S deleted file mode 100644 index a1f6a194d59b..000000000000 --- a/ArmVirtPkg/Library/QemuVirtMemInfoLib/AArch64/PhysAddrTop.S +++ /dev/null @@ -1,39 +0,0 @@ -# -# 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/QemuVirtMemInfoLib/Arm/PhysAddrTop.S b/ArmVirtPkg/Library/QemuVirtMemInfoLib/Arm/PhysAddrTop.S deleted file mode 100644 index 9cd81529fb3d..000000000000 --- a/ArmVirtPkg/Library/QemuVirtMemInfoLib/Arm/PhysAddrTop.S +++ /dev/null @@ -1,24 +0,0 @@ -# -# 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/AArch64/PhysAddrTop.S b/ArmVirtPkg/Library/XenVirtMemInfoLib/AArch64/PhysAddrTop.S deleted file mode 100644 index a1f6a194d59b..000000000000 --- a/ArmVirtPkg/Library/XenVirtMemInfoLib/AArch64/PhysAddrTop.S +++ /dev/null @@ -1,39 +0,0 @@ -# -# 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 deleted file mode 100644 index 9cd81529fb3d..000000000000 --- a/ArmVirtPkg/Library/XenVirtMemInfoLib/Arm/PhysAddrTop.S +++ /dev/null @@ -1,24 +0,0 @@ -# -# 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 -- 2.19.1