From nobody Tue Feb 10 09:57:53 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) client-ip=66.175.222.108; envelope-from=bounce+27952+93954+1787277+3901457@groups.io; helo=mail02.groups.io; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+93954+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=arm.com ARC-Seal: i=1; a=rsa-sha256; t=1663615371; cv=none; d=zohomail.com; s=zohoarc; b=bEsCpxA/Pn3gKeTuzjomPxsSGC8BmQ4R6kkrFI3gNFCbW2IPntDvwsc02aTKiMX1g0mPaeb6VJEwg5jtuNBhon4LpTvwuRjm8CdCAzgCgbzFceow+abhG20NsaJVs2uwxMQHjRNVnSNtcHCD5NYwnuZZF6FDl9ly+8siDgSfcAc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1663615371; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:References:Sender:Subject:To; bh=l/yn6J0C4I4oUL//W9libXhPFwWe6DkSJD3T7HRWX+A=; b=BTP2KkPdB8/G2UWOTZKD38Yrf5UtjthJpuAgHXmgGS+Y7dCKm5B98VXVTF339E/Kn0GE6GXbZ5B9J0C50BN3pIdlyACNz+j/HVQqJcXteD+/tuFmkUj6zcwg1jyyIYf52R8DAE9QKqcgO9Q7/xd8JUG9ew7ajcDCp5CVns8Rz9c= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+93954+1787277+3901457@groups.io; dmarc=fail header.from= (p=none dis=none) Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1663615371099886.0225532091167; Mon, 19 Sep 2022 12:22:51 -0700 (PDT) Return-Path: X-Received: by 127.0.0.2 with SMTP id 6zQzYY1788612xJlkJoEjAwo; Mon, 19 Sep 2022 12:22:50 -0700 X-Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mx.groups.io with SMTP id smtpd.web10.3212.1663615369997603694 for ; Mon, 19 Sep 2022 12:22:50 -0700 X-Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 22D311424; Mon, 19 Sep 2022 12:22:56 -0700 (PDT) X-Received: from pierre123.arm.com (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 641823F73B; Mon, 19 Sep 2022 12:22:47 -0700 (PDT) From: "PierreGondois" To: devel@edk2.groups.io Cc: Sami Mujawar , Leif Lindholm , Ard Biesheuvel , Rebecca Cran , Michael D Kinney , Liming Gao , Jiewen Yao , Jian J Wang Subject: [edk2-devel] [PATCH v5 11/21] ArmPkg/ArmLib: Add ArmHasRngExt() Date: Mon, 19 Sep 2022 21:21:57 +0200 Message-Id: <20220919192207.637786-12-Pierre.Gondois@arm.com> In-Reply-To: <20220919192207.637786-1-Pierre.Gondois@arm.com> References: <20220919192207.637786-1-Pierre.Gondois@arm.com> MIME-Version: 1.0 Precedence: Bulk List-Unsubscribe: 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,pierre.gondois@arm.com X-Gm-Message-State: evnBKJUT2Wf8ojXJamXyHAyhx1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1663615370; bh=mPcS+iHxxVXlI+TUgGFWE323FdR2aocxvpq+7ocT5EY=; h=Cc:Date:From:Reply-To:Subject:To; b=lCMw4qXgOm73wduc0MFYUe1uSmPxYzNu6EXMCi0Ni5eTz1kBrc8FwG+smkN1Q3Hxm1K Y0xlBmRrJq1X8jN7qOvW9SanS7jig5O+vdrj7SYp2Fz1YKpqvi/19FeJigoLcRXOq5Gby OOLop1FJO86xhoAIW551B2Ueoh9TyPUGSKc= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1663615372917100002 Content-Type: text/plain; charset="utf-8" From: Pierre Gondois Add a ArmHasRngExt() to check for the FEAT_RNG extension. Also add a mask for the RNDR bits. Signed-off-by: Pierre Gondois --- ArmPkg/Include/Library/ArmLib.h | 12 +++++++++++- ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c | 15 ++++++++++++++- ArmPkg/Library/ArmLib/AArch64/AArch64Lib.h | 2 ++ ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c | 16 +++++++++++++++- 4 files changed, 42 insertions(+), 3 deletions(-) diff --git a/ArmPkg/Include/Library/ArmLib.h b/ArmPkg/Include/Library/ArmLi= b.h index 6566deebdde2..8058634dbc53 100644 --- a/ArmPkg/Include/Library/ArmLib.h +++ b/ArmPkg/Include/Library/ArmLib.h @@ -1,7 +1,7 @@ /** @file =20 Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.
- Copyright (c) 2011 - 2016, ARM Ltd. All rights reserved.
+ Copyright (c) 2011 - 2022, Arm Limited. All rights reserved.
Copyright (c) 2020 - 2021, NUVIA Inc. All rights reserved.
=20 SPDX-License-Identifier: BSD-2-Clause-Patent @@ -769,6 +769,16 @@ ArmHasCcidx ( VOID ); =20 +/** Check if FEAT_RNG extension is available. + + @retval TRUE if FEAT_RNG extension is available. + @retval FALSE otherwise. +**/ +BOOLEAN +ArmHasRngExt ( + VOID + ); + #ifdef MDE_CPU_ARM /// /// AArch32-only ID Register Helper functions diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c b/ArmPkg/Library/Ar= mLib/AArch64/AArch64Lib.c index 7ab28e3e05fe..124b28e16874 100644 --- a/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c +++ b/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c @@ -1,7 +1,7 @@ /** @file =20 Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.
- Portions copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.
+ Portions copyright (c) 2011 - 2022, Arm Limited. All rights reserved.
Copyright (c) 2021, NUVIA Inc. All rights reserved.
=20 SPDX-License-Identifier: BSD-2-Clause-Patent @@ -104,3 +104,16 @@ ArmHasCcidx ( Mmfr2 =3D ArmReadIdAA64Mmfr2 (); return (((Mmfr2 >> 20) & 0xF) =3D=3D 1) ? TRUE : FALSE; } + +/** Check if FEAT_RNG extension is available. + + @retval TRUE if FEAT_RNG extension is available. + @retval FALSE otherwise. +**/ +BOOLEAN +ArmHasRngExt ( + VOID + ) +{ + return ArmReadIdIsar0 () & ID_AA64ISAR0_EL1_RNDR_MASK; +} diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.h b/ArmPkg/Library/Ar= mLib/AArch64/AArch64Lib.h index 105a52ee16fe..61a775ea27e8 100644 --- a/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.h +++ b/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.h @@ -11,6 +11,8 @@ #ifndef AARCH64_LIB_H_ #define AARCH64_LIB_H_ =20 +#define ID_AA64ISAR0_EL1_RNDR_MASK ((UINT64)0xF << 60U) + typedef VOID (*AARCH64_CACHE_OPERATION)( UINTN ); diff --git a/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c b/ArmPkg/Library/ArmLib/A= rm/ArmV7Lib.c index 521d5be0de33..a4ec23c8f8d8 100644 --- a/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c +++ b/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c @@ -1,7 +1,7 @@ /** @file =20 Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.
- Copyright (c) 2011 - 2014, ARM Limited. All rights reserved. + Copyright (c) 2011 - 2022, Arm Limited. All rights reserved. Copyright (c) 2021, NUVIA Inc. All rights reserved.
=20 SPDX-License-Identifier: BSD-2-Clause-Patent @@ -119,3 +119,17 @@ ArmHasCcidx ( Mmfr4 =3D ArmReadIdMmfr4 (); return (((Mmfr4 >> 24) & 0xF) =3D=3D 1) ? TRUE : FALSE; } + +/** Check if FEAT_RNG extension is available. + + @retval TRUE if FEAT_RNG extension is available. + @retval FALSE otherwise. +**/ +BOOLEAN +ArmHasRngExt ( + VOID + ) +{ + // Not supported. + return FALSE; +} --=20 2.25.1 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#93954): https://edk2.groups.io/g/devel/message/93954 Mute This Topic: https://groups.io/mt/93788882/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-