From patchwork Mon Jul 29 15:39:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anthony PERARD X-Patchwork-Id: 11064127 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1AEF0746 for ; Mon, 29 Jul 2019 15:59:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0C34B28515 for ; Mon, 29 Jul 2019 15:59:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 001EE286B1; Mon, 29 Jul 2019 15:59:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7F21C28515 for ; Mon, 29 Jul 2019 15:59:43 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hs82P-0002xM-2Y; Mon, 29 Jul 2019 15:58:13 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hs82N-0002v5-Pz for xen-devel@lists.xenproject.org; Mon, 29 Jul 2019 15:58:11 +0000 X-Inumbo-ID: a9d36b29-b219-11e9-8980-bc764e045a96 Received: from esa3.hc3370-68.iphmx.com (unknown [216.71.145.155]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id a9d36b29-b219-11e9-8980-bc764e045a96; Mon, 29 Jul 2019 15:58:10 +0000 (UTC) Authentication-Results: esa3.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none; spf=None smtp.pra=anthony.perard@citrix.com; spf=Pass smtp.mailfrom=anthony.perard@citrix.com; spf=None smtp.helo=postmaster@mail.citrix.com Received-SPF: None (esa3.hc3370-68.iphmx.com: no sender authenticity information available from domain of anthony.perard@citrix.com) identity=pra; client-ip=162.221.158.21; receiver=esa3.hc3370-68.iphmx.com; envelope-from="anthony.perard@citrix.com"; x-sender="anthony.perard@citrix.com"; x-conformance=sidf_compatible Received-SPF: Pass (esa3.hc3370-68.iphmx.com: domain of anthony.perard@citrix.com designates 162.221.158.21 as permitted sender) identity=mailfrom; client-ip=162.221.158.21; receiver=esa3.hc3370-68.iphmx.com; envelope-from="anthony.perard@citrix.com"; x-sender="anthony.perard@citrix.com"; x-conformance=sidf_compatible; x-record-type="v=spf1"; x-record-text="v=spf1 ip4:209.167.231.154 ip4:178.63.86.133 ip4:195.66.111.40/30 ip4:85.115.9.32/28 ip4:199.102.83.4 ip4:192.28.146.160 ip4:192.28.146.107 ip4:216.52.6.88 ip4:216.52.6.188 ip4:162.221.158.21 ip4:162.221.156.83 ~all" Received-SPF: None (esa3.hc3370-68.iphmx.com: no sender authenticity information available from domain of postmaster@mail.citrix.com) identity=helo; client-ip=162.221.158.21; receiver=esa3.hc3370-68.iphmx.com; envelope-from="anthony.perard@citrix.com"; x-sender="postmaster@mail.citrix.com"; x-conformance=sidf_compatible IronPort-SDR: 3ARBLeNSo2mL2OkpWWqoUly+FoDdSJQxfcbCUH3/VJMvmqVRiEFTQlIBThANPKP6xjXSoCfy4C Z1hbFg8d/KibdeJBe86SEWlpetBDQaeD+YWoDLNUJrdaGuiibHu54Lpxg/W3LDjDwmzZ+bYSIb Hi8qP5977299if4r1vgl+4Ds09ZC1OZV6i4p4k9VOL9NBnjp0Nwie/6StcgTIZJfzBiaxlINlX D0ZlbdZv+uLIhvEgBGYi6mbb3Ez9QMb0aBi0Mwll0DSlT1+h+d/+RZ2GPwIc6liNdhflFROJH5 POM= X-SBRS: 2.7 X-MesageID: 3579638 X-Ironport-Server: esa3.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED X-IronPort-AV: E=Sophos;i="5.64,323,1559534400"; d="scan'208";a="3579638" From: Anthony PERARD To: Date: Mon, 29 Jul 2019 16:39:19 +0100 Message-ID: <20190729153944.24239-11-anthony.perard@citrix.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190729153944.24239-1-anthony.perard@citrix.com> References: <20190729153944.24239-1-anthony.perard@citrix.com> MIME-Version: 1.0 Subject: [Xen-devel] [PATCH v4 10/35] OvmfPkg/XenPlatformPei: Detect OVMF_INFO from hvmloader X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Ard Biesheuvel , Jordan Justen , Julien Grall , Anthony PERARD , xen-devel@lists.xenproject.org, Laszlo Ersek Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP EFI_XEN_OVMF_INFO is only useful to retrieve the E820 table. The mXenHvmloaderInfo isn't used yet, but will be use in a further patch to retrieve the E820 table. Also remove the unused pointer from the XenInfo HOB as that information is only useful in the XenPlatformPei. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689 Signed-off-by: Anthony PERARD Acked-by: Laszlo Ersek --- Notes: v3: - fix coding style - fix commit message OvmfPkg/Include/Guid/XenInfo.h | 4 ---- OvmfPkg/PlatformPei/Xen.c | 3 --- OvmfPkg/XenPlatformPei/Xen.c | 25 +++++++++++++++++++++++-- 3 files changed, 23 insertions(+), 9 deletions(-) diff --git a/OvmfPkg/Include/Guid/XenInfo.h b/OvmfPkg/Include/Guid/XenInfo.h index 25d76a7828..b052d618fd 100644 --- a/OvmfPkg/Include/Guid/XenInfo.h +++ b/OvmfPkg/Include/Guid/XenInfo.h @@ -18,10 +18,6 @@ typedef struct { /// VOID *HyperPages; /// - /// Location of the hvm_info page. - /// - VOID *HvmInfo; - /// /// Hypervisor major version. /// UINT16 VersionMajor; diff --git a/OvmfPkg/PlatformPei/Xen.c b/OvmfPkg/PlatformPei/Xen.c index 89dc4143b2..3e15b32a73 100644 --- a/OvmfPkg/PlatformPei/Xen.c +++ b/OvmfPkg/PlatformPei/Xen.c @@ -98,9 +98,6 @@ XenConnect ( mXenInfo.VersionMajor = (UINT16)(XenVersion >> 16); mXenInfo.VersionMinor = (UINT16)(XenVersion & 0xFFFF); - /* TBD: Locate hvm_info and reserve it away. */ - mXenInfo.HvmInfo = NULL; - BuildGuidDataHob ( &gEfiXenInfoGuid, &mXenInfo, diff --git a/OvmfPkg/XenPlatformPei/Xen.c b/OvmfPkg/XenPlatformPei/Xen.c index f4d0d1c73b..9962fe9fc7 100644 --- a/OvmfPkg/XenPlatformPei/Xen.c +++ b/OvmfPkg/XenPlatformPei/Xen.c @@ -33,6 +33,12 @@ STATIC UINT32 mXenLeaf = 0; EFI_XEN_INFO mXenInfo; +// +// Location of the firmware info struct setup by hvmloader. +// Only the E820 table is used by OVMF. +// +EFI_XEN_OVMF_INFO *mXenHvmloaderInfo; + /** Returns E820 map provided by Xen @@ -78,6 +84,8 @@ XenConnect ( UINT32 TransferReg; UINT32 TransferPages; UINT32 XenVersion; + EFI_XEN_OVMF_INFO *Info; + CHAR8 Sig[sizeof (Info->Signature) + 1]; AsmCpuid (XenLeaf + 2, &TransferPages, &TransferReg, NULL, NULL); mXenInfo.HyperPages = AllocatePages (TransferPages); @@ -97,8 +105,21 @@ XenConnect ( mXenInfo.VersionMajor = (UINT16)(XenVersion >> 16); mXenInfo.VersionMinor = (UINT16)(XenVersion & 0xFFFF); - /* TBD: Locate hvm_info and reserve it away. */ - mXenInfo.HvmInfo = NULL; + // + // Check if there are information left by hvmloader + // + + Info = (EFI_XEN_OVMF_INFO *)(UINTN) OVMF_INFO_PHYSICAL_ADDRESS; + // + // Copy the signature, and make it null-terminated. + // + AsciiStrnCpyS (Sig, sizeof (Sig), (CHAR8 *) &Info->Signature, + sizeof (Info->Signature)); + if (AsciiStrCmp (Sig, "XenHVMOVMF") == 0) { + mXenHvmloaderInfo = Info; + } else { + mXenHvmloaderInfo = NULL; + } BuildGuidDataHob ( &gEfiXenInfoGuid,