From nobody Wed Feb 11 08:22:40 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+94770+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+94770+1787277+3901457@groups.io ARC-Seal: i=1; a=rsa-sha256; t=1665002033; cv=none; d=zohomail.com; s=zohoarc; b=D3ZfS1IWD0wF8iQg55Ccg3pTTQl6Sa8UccvI6Ryg73IhskFPVKov3r40VGL7i25nfFXdhfJiSOn07jYvbX7WNWYLdUXMGPlLLrc5P0htEFzNc1wN5nTiWOO1HJ99MTYPhKTYxTUvyT/et8j2/m/Zk0aNSHtSVcxE8Eqv2s4wwrs= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1665002033; h=Content-Type: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=pzJMlDzUuH13oXouN03qaGU67EvPwjh6OkUP7erjknM=; b=k/qnX+xhNilKM+F6ezByvTeAaVIMhuKBlNMe5rvoutAvbpp5Lf++0Z22K4NzOs0ofmptkRrdn3scgXOVYzNPFlBWmpUhCsJNTxyA8AjdLWYkD0/SgavZ6wl1vAri8IHXx30AKV8lHObjfGLrMQe+OLWEVd9/YeyVL3QpmDZOh+Q= 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+94770+1787277+3901457@groups.io Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1665002033477112.68054521086094; Wed, 5 Oct 2022 13:33:53 -0700 (PDT) Return-Path: X-Received: by 127.0.0.2 with SMTP id JVkkYY1788612xW5ipJzk4Vw; Wed, 05 Oct 2022 13:33:53 -0700 X-Received: from mail-pf1-f202.google.com (mail-pf1-f202.google.com [209.85.210.202]) by mx.groups.io with SMTP id smtpd.web08.434.1665002032509529097 for ; Wed, 05 Oct 2022 13:33:52 -0700 X-Received: by mail-pf1-f202.google.com with SMTP id ay1-20020a056a00300100b0053e7e97696bso3186pfb.3 for ; Wed, 05 Oct 2022 13:33:52 -0700 (PDT) X-Gm-Message-State: gqTR3JCE6W5145QFk0uAmH1Jx1787277AA= X-Google-Smtp-Source: AMsMyM4BoUlasRAvgjMBvOchmbjTbALtR7fFGCk2w8btYYBwkvioZmi5SNJuvfeqjSZBJJJBZL+2sC6/oKrM1NiWuQ== X-Received: from dionnaglaze.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:2ee6]) (user=dionnaglaze job=sendgmr) by 2002:a17:90a:cd06:b0:203:ae0e:6a21 with SMTP id d6-20020a17090acd0600b00203ae0e6a21mr99721pju.0.1665002031454; Wed, 05 Oct 2022 13:33:51 -0700 (PDT) Date: Wed, 5 Oct 2022 20:33:29 +0000 In-Reply-To: <20221005203329.469866-1-dionnaglaze@google.com> Mime-Version: 1.0 References: <20221005203329.469866-1-dionnaglaze@google.com> Message-ID: <20221005203329.469866-8-dionnaglaze@google.com> Subject: [edk2-devel] [PATCH v7 7/7] OvmfPkg/PlatformPei: SEV-SNP make >=4GB unaccepted From: "Dionna Glaze via groups.io" To: devel@edk2.groups.io Cc: Dionna Glaze , Ard Biescheuvel , "Min M. Xu" , Gerd Hoffmann , James Bottomley , Tom Lendacky , Jiewen Yao , Erdem Aktas 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,dionnaglaze@google.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1665002033; bh=aCGJndzLwRfuaqOILyWAtFSiRd+E/Sl5vo3J4zgN59E=; h=Cc:Content-Type:Date:From:Reply-To:Subject:To; b=t9ymXZ2481MmdL/ucfzXheYx/e45kcdv1nkd2UFU1BiMkSAdFYGGc1F25Rn6A50sGGv ZSU9PrGQVMm5YXPfBDsMvRTUmdZFWbJ6oc1Cz4a38Hhqxevv9pycs7cmsBqumAamjQUq5 VXNL/OVBzgqE6l+vO7o7a+TwhBh0vGHusJI= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1665002033965100002 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Instead of eagerly accepting all memory in PEI, only accept memory under the 4GB address. This allows a loaded image to use the ACCEPT_ALL_UNACCEPTED_MEMORY_PROTOCOL to disable the accept behavior and indicate that it can interpret the memory type accordingly. This classification is safe since ExitBootServices will accept and reclassify the memory as conventional if the disable protocol is not used. Cc: Ard Biescheuvel Cc: "Min M. Xu" Cc: Gerd Hoffmann Cc: James Bottomley Cc: Tom Lendacky Cc: Jiewen Yao Cc: Erdem Aktas Signed-off-by: Dionna Glaze Reviewed-by: Tom Lendacky --- OvmfPkg/PlatformPei/AmdSev.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/OvmfPkg/PlatformPei/AmdSev.c b/OvmfPkg/PlatformPei/AmdSev.c index 385562b44c..2a52d6f491 100644 --- a/OvmfPkg/PlatformPei/AmdSev.c +++ b/OvmfPkg/PlatformPei/AmdSev.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -63,6 +64,10 @@ AmdSevSnpInitialize ( for (Hob.Raw =3D GetHobList (); !END_OF_HOB_LIST (Hob); Hob.Raw =3D GET_= NEXT_HOB (Hob)) { if ((Hob.Raw !=3D NULL) && (GET_HOB_TYPE (Hob) =3D=3D EFI_HOB_TYPE_RES= OURCE_DESCRIPTOR)) { ResourceHob =3D Hob.ResourceDescriptor; + if (ResourceHob->PhysicalStart >=3D SIZE_4GB) { + ResourceHob->ResourceType =3D EFI_RESOURCE_MEMORY_UNACCEPTED; + continue; + } =20 if (ResourceHob->ResourceType =3D=3D EFI_RESOURCE_SYSTEM_MEMORY) { MemEncryptSevSnpPreValidateSystemRam ( --=20 2.38.0.rc1.362.ged0d419d3c-goog -=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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