From nobody Sun Feb 8 19:21:17 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+87487+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+87487+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1647050127; cv=none; d=zohomail.com; s=zohoarc; b=f06SMwfKPq80ukonIWIHaMD79uXNrX+QzUs16ejiaHcFe6MU/u2ULecG2goHvsqQoTaC3O9YQyhBQGqoDqDOWIsNBbgeA9x3XIi39LnX2J3XtYAzyMmu19XVIhqjl4siIbWe5YL9Tgao4KFE0G/iqD/eXReRsscSsY5qYYK7n9k= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1647050127; 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=4p1lzY0chmabZ6HRlg6dLp6BVt3NO8Ok3ZFv0iSJLzc=; b=NvIglRqUTGmR+MWtdBN/R17pKC+0dnNE63SqHJklsy6SqQY2rq6TUtXbVGl+p+GuzS+fDCqNbSGQ+ujFZeUmRHQLEP6PgRVLTE//9CFEnCJvXi/RuOg3a51kCFK403VGYa6viszIqdIySTr0nw0yWp86PNKd7hsisiO/DNBpWXI= 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+87487+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 1647050127896333.3509671692333; Fri, 11 Mar 2022 17:55:27 -0800 (PST) Return-Path: X-Received: by 127.0.0.2 with SMTP id wjJKYY1788612xa6OzYuxVFX; Fri, 11 Mar 2022 17:55:27 -0800 X-Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by mx.groups.io with SMTP id smtpd.web08.919.1647050070631942533 for ; Fri, 11 Mar 2022 17:55:27 -0800 X-IronPort-AV: E=McAfee;i="6200,9189,10283"; a="255894469" X-IronPort-AV: E=Sophos;i="5.90,175,1643702400"; d="scan'208";a="255894469" X-Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2022 17:55:26 -0800 X-IronPort-AV: E=Sophos;i="5.90,175,1643702400"; d="scan'208";a="555564680" X-Received: from mxu9-mobl1.ccr.corp.intel.com ([10.255.29.254]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2022 17:55:23 -0800 From: "Min Xu" To: devel@edk2.groups.io Cc: Min Xu , Ard Biesheuvel , Jordan Justen , Brijesh Singh , Erdem Aktas , James Bottomley , Jiewen Yao , Tom Lendacky , Gerd Hoffmann , Sebastien Boeuf Subject: [edk2-devel] [PATCH V8 19/47] OvmfPkg/PlatformPei: Refactor MiscInitialization Date: Sat, 12 Mar 2022 09:53:44 +0800 Message-Id: <14e29536cd50ddfd9443bcfd70da5c0438ac704f.1647047482.git.min.m.xu@intel.com> In-Reply-To: References: 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,min.m.xu@intel.com X-Gm-Message-State: EpmiylRcn0GaSA0dCpOJruoQx1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1647050127; bh=a0o0Ppkjd3kNDAbUYtXqeS7TPfqTLt2m/rcV2L/dTHI=; h=Cc:Date:From:Reply-To:Subject:To; b=V2cBfPEdW6xLp9IHbfArqwRvBOSj53mnta6nFuGrkoKQFTY90h/xauhA/7t52QflBVv 2L831kCAxMwZGxqwOcNl4pUm8BlAKEwcsbgVejfr67ztPKwY/3Jsjb+chBS1dzmBjrk64 jHxBSbNlDKplnaiDmrvDZTOAz0TEmhl21A4= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1647050128162100006 Content-Type: text/plain; charset="utf-8" BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3D3863 In MiscInitialization Microvm looks a little weird. Other platforms call PcdSet16S to set the PcdOvmfHostBridgePciDevId with the value same as PlatformInfoHob->HostBridgeDevId. But Microvm doesn't follow this way. In switch-case 0xffff is Microvm, but set with MICROVM_PSEUDO_DEVICE_ID. So we have to add a new function ( MiscInitializationForMicrovm ) for Microvm and delete the code in MiscInitialization. Cc: Ard Biesheuvel Cc: Jordan Justen Cc: Brijesh Singh Cc: Erdem Aktas Cc: James Bottomley Cc: Jiewen Yao Cc: Tom Lendacky Cc: Gerd Hoffmann Cc: Sebastien Boeuf Signed-off-by: Min Xu Acked-by: Gerd Hoffmann --- OvmfPkg/PlatformPei/Platform.c | 46 ++++++++++++++++++++++++++-------- 1 file changed, 36 insertions(+), 10 deletions(-) diff --git a/OvmfPkg/PlatformPei/Platform.c b/OvmfPkg/PlatformPei/Platform.c index 80eb4cc9adcd..af9e72cd7a98 100644 --- a/OvmfPkg/PlatformPei/Platform.c +++ b/OvmfPkg/PlatformPei/Platform.c @@ -304,6 +304,36 @@ MicrovmInitialization ( *FdtHobData =3D (UINTN)NewBase; } =20 +VOID +MiscInitializationForMicrovm ( + IN EFI_HOB_PLATFORM_INFO *PlatformInfoHob + ) +{ + RETURN_STATUS PcdStatus; + + ASSERT (PlatformInfoHob->HostBridgeDevId =3D=3D 0xffff); + + DEBUG ((DEBUG_INFO, "%a: microvm\n", __FUNCTION__)); + // + // Disable A20 Mask + // + IoOr8 (0x92, BIT1); + + // + // Build the CPU HOB with guest RAM size dependent address width and 16-= bits + // of IO space. (Side note: unlike other HOBs, the CPU HOB is needed dur= ing + // S3 resume as well, so we build it unconditionally.) + // + BuildCpuHob (PlatformInfoHob->PhysMemAddressWidth, 16); + + MicrovmInitialization (); + PcdStatus =3D PcdSet16S ( + PcdOvmfHostBridgePciDevId, + MICROVM_PSEUDO_DEVICE_ID + ); + ASSERT_RETURN_ERROR (PcdStatus); +} + VOID MiscInitialization ( IN EFI_HOB_PLATFORM_INFO *PlatformInfoHob @@ -349,15 +379,6 @@ MiscInitialization ( AcpiCtlReg =3D POWER_MGMT_REGISTER_Q35 (ICH9_ACPI_CNTL); AcpiEnBit =3D ICH9_ACPI_CNTL_ACPI_EN; break; - case 0xffff: /* microvm */ - DEBUG ((DEBUG_INFO, "%a: microvm\n", __FUNCTION__)); - MicrovmInitialization (); - PcdStatus =3D PcdSet16S ( - PcdOvmfHostBridgePciDevId, - MICROVM_PSEUDO_DEVICE_ID - ); - ASSERT_RETURN_ERROR (PcdStatus); - return; case CLOUDHV_DEVICE_ID: DEBUG ((DEBUG_INFO, "%a: Cloud Hypervisor host bridge\n", __FUNCTION= __)); PcdStatus =3D PcdSet16S ( @@ -762,7 +783,12 @@ InitializePlatform ( =20 InstallClearCacheCallback (); AmdSevInitialize (); - MiscInitialization (&mPlatformInfoHob); + if (mPlatformInfoHob.HostBridgeDevId =3D=3D 0xffff) { + MiscInitializationForMicrovm (&mPlatformInfoHob); + } else { + MiscInitialization (&mPlatformInfoHob); + } + InstallFeatureControlCallback (); =20 return EFI_SUCCESS; --=20 2.29.2.windows.2 -=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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