From nobody Mon Feb 9 21:19:38 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of groups.io designates 66.175.222.12 as permitted sender) client-ip=66.175.222.12; envelope-from=bounce+27952+48949+1787277+3901457@groups.io; helo=web01.groups.io; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zoho.com: domain of groups.io designates 66.175.222.12 as permitted sender) smtp.mailfrom=bounce+27952+48949+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1571095846; cv=none; d=zoho.com; s=zohoarc; b=UNM/OtCwOI68/b7abDsYh4g8wrEgA9B40kKllEJCqgm6KoZv+vUUt/fPv+KBHVZjGPs91oehafVX55OdO+jlWIKiKpi8GuRa+q/LzoZL3eLZDLS1J5D9/41ZI3s59PUBFaYvZvxIOHzEQ0RZpkrK1rXaLaV+8FiTSfNeLXJ8Yik= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1571095846; h=Cc:Date:From:In-Reply-To:List-Id:List-Unsubscribe:Message-ID:Reply-To:References:Sender:Subject:To; bh=khKht1yEorjLn1+hKh2xszVCFDOiQqu8Hh6hvwXTdYY=; b=MFSbFwkUUmnMIvsBuJgAhTgnbjWyDCyOxbiAipSk4x1PjE1FrCNyBGqDff27IEQOT5HKyvTjpo9EH/DpCGB6qJPgQ0snEDNIymD5Cb9Utbotv2yBupFAjyS85tc2xJ6is8b29snrxWhi4Z0DQrE9LAhB0rigFMSK8GTHr8TTgvA= ARC-Authentication-Results: i=1; mx.zoho.com; dkim=pass; spf=pass (zoho.com: domain of groups.io designates 66.175.222.12 as permitted sender) smtp.mailfrom=bounce+27952+48949+1787277+3901457@groups.io; dmarc=fail header.from= (p=none dis=none) header.from= Received: from web01.groups.io (web01.groups.io [66.175.222.12]) by mx.zohomail.com with SMTPS id 1571095846156460.1112768963234; Mon, 14 Oct 2019 16:30:46 -0700 (PDT) Return-Path: X-Received: by 127.0.0.2 with SMTP id YULYYY1788612xbJ2HoQ0tRO; Mon, 14 Oct 2019 16:30:45 -0700 X-Received: from mga01.intel.com (mga01.intel.com []) by mx.groups.io with SMTP id smtpd.web11.1608.1571095843297982931 for ; Mon, 14 Oct 2019 16:30:44 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Oct 2019 16:30:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,296,1566889200"; d="scan'208";a="346902649" X-Received: from makuback-desk1.amr.corp.intel.com ([10.7.159.162]) by orsmga004.jf.intel.com with ESMTP; 14 Oct 2019 16:30:35 -0700 From: "Kubacki, Michael A" To: devel@edk2.groups.io Cc: Ard Biesheuvel , Laszlo Ersek , Liming Gao , Jordan Justen , Hao A Wu Subject: [edk2-devel] [PATCH V4 09/10] OvmfPkg: Disable variable runtime cache Date: Mon, 14 Oct 2019 16:30:00 -0700 Message-Id: <20191014233001.33024-10-michael.a.kubacki@intel.com> In-Reply-To: <20191014233001.33024-1-michael.a.kubacki@intel.com> References: <20191014233001.33024-1-michael.a.kubacki@intel.com> Precedence: Bulk List-Unsubscribe: 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,michael.a.kubacki@intel.com X-Gm-Message-State: lFo7mrTEfpUuNVOwJz28jRUSx1787277AA= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1571095845; bh=SAVXEY6wTj2cbWzLhLj2gYn6XhTqrWnp37OGglCVjJE=; h=Cc:Date:From:Reply-To:Subject:To; b=FuJkOAMZ7fc0Fdd+mHuBIxxJ8DpVv35A80MlTg0F/mR84BZPieFiSPPKQZ84djjRYVi 5gqYK0y6yb0R0hRqbT464BxISCiMJjGIDelQv+45HfrvVFm+9YqQSna4QHQxZOayxoaFq dH4j+X5CbF6QOw9+kibUqwn6OxW42l5Yas4= X-ZohoMail-DKIM: pass (identity @groups.io) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Sets gEfiMdeModulePkgTokenSpaceGuid.PcdEnableVariableRuntimeCache to FALSE in OvmfPkgIa32.dsc, OvmfPkgIa32X64.dsc, and OvmfPkgX64.dsc so that when SMM_REQUIRE is TRUE, the SMM variable driver will not use the runtime variable cache. This is done for OvmfPkg because it currently depends upon a SMM variable GetVariable ()implementation as a simple method to exercise the SMM driver stack. This allows the following commands to be used for variables such as Boot####, BootOrder, and BootNext to test SMM timing and stability differences on the BSP (e.g. CPU#0) vs an AP (e.g. CPU#1). # taskset -c 0 efibootmgr # taskset -c 1 efibootmgr Cc: Ard Biesheuvel Cc: Laszlo Ersek Cc: Liming Gao Cc: Jordan Justen Cc: Hao A Wu Signed-off-by: Michael Kubacki Reviewed-by: Laszlo Ersek --- OvmfPkg/OvmfPkgIa32.dsc | 1 + OvmfPkg/OvmfPkgIa32X64.dsc | 1 + OvmfPkg/OvmfPkgX64.dsc | 1 + 3 files changed, 3 insertions(+) diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc index 66e944436a..4861e2342b 100644 --- a/OvmfPkg/OvmfPkgIa32.dsc +++ b/OvmfPkg/OvmfPkgIa32.dsc @@ -428,6 +428,7 @@ !if $(SMM_REQUIRE) =3D=3D TRUE gUefiOvmfPkgTokenSpaceGuid.PcdSmmSmramRequire|TRUE gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmEnableBspElection|FALSE + gEfiMdeModulePkgTokenSpaceGuid.PcdEnableVariableRuntimeCache|FALSE !endif =20 [PcdsFixedAtBuild] diff --git a/OvmfPkg/OvmfPkgIa32X64.dsc b/OvmfPkg/OvmfPkgIa32X64.dsc index 51c2bfb44f..f316d97d6a 100644 --- a/OvmfPkg/OvmfPkgIa32X64.dsc +++ b/OvmfPkg/OvmfPkgIa32X64.dsc @@ -433,6 +433,7 @@ !if $(SMM_REQUIRE) =3D=3D TRUE gUefiOvmfPkgTokenSpaceGuid.PcdSmmSmramRequire|TRUE gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmEnableBspElection|FALSE + gEfiMdeModulePkgTokenSpaceGuid.PcdEnableVariableRuntimeCache|FALSE !endif =20 [PcdsFixedAtBuild] diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc index ba7a758844..546649f0a2 100644 --- a/OvmfPkg/OvmfPkgX64.dsc +++ b/OvmfPkg/OvmfPkgX64.dsc @@ -433,6 +433,7 @@ !if $(SMM_REQUIRE) =3D=3D TRUE gUefiOvmfPkgTokenSpaceGuid.PcdSmmSmramRequire|TRUE gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmEnableBspElection|FALSE + gEfiMdeModulePkgTokenSpaceGuid.PcdEnableVariableRuntimeCache|FALSE !endif =20 [PcdsFixedAtBuild] --=20 2.16.2.windows.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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