From nobody Tue Feb 10 11:56:31 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+95332+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+95332+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=arm.com ARC-Seal: i=1; a=rsa-sha256; t=1666099858; cv=none; d=zohomail.com; s=zohoarc; b=a08k6qTmCUyDQEAZ0wofrTwjIZKX/f3xQvQA3+8vGN1rDn/UF57szrFtMt7m3ZwKgcuV0c/SgGNjgMQR7Tyyj1apLQRSx2rIUovPRieF0TEZPZjEcXSG5thXkB8JYCX+2OFyUtmrJOEar6M7KrC07Oi160UXbXquIHnq6YAOmM0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1666099858; 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=SZSwHpXCya8vlsBW36vZYX2i0VnWMQ6jabgw1mne9pQ=; b=AkyDVqKEb9edbIHjSk/t5ZlQgUNVrwOSTr4Qcp0OsFdr/AfR0Yl7UlinUW91I0oXZ6mMIuEpPz1fEfUpsmMyaGp5o6t/yJoGccvZzM3MKkV9uwpa6nGi7NWbzlogMCjZajTyxMs2vzYrDml16Ea7/1vogVju+fbWQ63Myulpjlg= 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+95332+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 1666099858225666.9841208772211; Tue, 18 Oct 2022 06:30:58 -0700 (PDT) Return-Path: X-Received: by 127.0.0.2 with SMTP id byc0YY1788612xQAUJxcRSGF; Tue, 18 Oct 2022 06:30:57 -0700 X-Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mx.groups.io with SMTP id smtpd.web11.6670.1666099857188756322 for ; Tue, 18 Oct 2022 06:30:57 -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 19122113E; Tue, 18 Oct 2022 06:31:03 -0700 (PDT) X-Received: from pierre123.arm.com (pierre123.nice.arm.com [10.34.100.128]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 71F8F3F792; Tue, 18 Oct 2022 06:30:55 -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 v8 16/19] SecurityPkg/RngDxe: Add debug warning for NULL PcdCpuRngSupportedAlgorithm Date: Tue, 18 Oct 2022 15:20:49 +0200 Message-Id: <20221018132052.1359530-17-Pierre.Gondois@arm.com> In-Reply-To: <20221018132052.1359530-1-Pierre.Gondois@arm.com> References: <20221018132052.1359530-1-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: j3VlAi8ilBAUgKlhJWlN3xxRx1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1666099857; bh=/zrYuwyLNQK0qb6V+gu5tzlDxH6cI5lTlWuJJZtoSks=; h=Cc:Date:From:Reply-To:Subject:To; b=ZQLj/jjQDBwLYHBx2xgGpbt7jGQ1ZZjiY/TKJMfPle0vMk0gtg2PGMaopL271iMsNr8 kfl6XWU5JUL+cw8hI47QMZWfS1wUpvmz3r3p8MClbx29TR399A1a2rAHTM1aKwzLyeAH2 h7E5U/sZTjNTtXGcs2PbyHB6tOVqF6aD8Dk= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1666099859629100001 Content-Type: text/plain; charset="utf-8" From: Pierre Gondois PcdCpuRngSupportedAlgorithm should allow to identify the the algorithm used by the RNDR CPU instruction to generate a random number. Add a debug warning if the Pcd is not set. Signed-off-by: Pierre Gondois --- .../RandomNumberGenerator/RngDxe/AArch64/RngDxe.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/RngDxe.c b/Se= curityPkg/RandomNumberGenerator/RngDxe/AArch64/RngDxe.c index f5910e3b999f..0d853720ecb1 100644 --- a/SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/RngDxe.c +++ b/SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/RngDxe.c @@ -67,6 +67,16 @@ GetAvailableAlgorithms ( sizeof (EFI_RNG_ALGORITHM) ); mAvailableAlgoArrayCount++; + + DEBUG_CODE_BEGIN (); + if (IsZeroGuid (PcdGetPtr (PcdCpuRngSupportedAlgorithm))) { + DEBUG (( + DEBUG_WARN, + "PcdCpuRngSupportedAlgorithm should be a non-zero GUID\n" + )); + } + + DEBUG_CODE_END (); } =20 // Raw algorithm (Trng) --=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. 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