From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by mx.groups.io with SMTP id smtpd.web10.74257.1674222488726820223 for ; Fri, 20 Jan 2023 05:48:08 -0800 Authentication-Results: mx.groups.io; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=J8OUQCt5; spf=pass (domain: redhat.com, ip: 170.10.129.124, mailfrom: lersek@redhat.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1674222487; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=k/zPz65Xj4Q0DyYMdOQ6yf2Wp7wC4dSwJI7/brRAEcM=; b=J8OUQCt5/JVjjWsTLhopxpbDarABcNl+Q1Dvdo2d7qWE1CRCYzeFCFjLLst4THS0a1j9F2 z/P+2AbvSOUIj6VaIj59KbZZcfRT0cQD33RduVAdLcKvPZJVDFG08XyMhhi/PaDra0lePu u5ECXRJmOF5tGXW128BIvdl8sSX39aA= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-457-0I8pZM9AMu2CRcTSPROpdQ-1; Fri, 20 Jan 2023 08:48:02 -0500 X-MC-Unique: 0I8pZM9AMu2CRcTSPROpdQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 62EE22807D72; Fri, 20 Jan 2023 13:48:02 +0000 (UTC) Received: from [10.39.193.187] (unknown [10.39.193.187]) by smtp.corp.redhat.com (Postfix) with ESMTPS id DD473C15BAD; Fri, 20 Jan 2023 13:48:00 +0000 (UTC) Message-ID: <731bbb07-fc7d-9bb7-e8e2-4b9bbfbfecb6@redhat.com> Date: Fri, 20 Jan 2023 14:47:59 +0100 MIME-Version: 1.0 Subject: Re: [RFC PATCH] OvmfPkg/PlatformCI VS2019: Enable temporary workaround for cpuhp bugfix To: Ard Biesheuvel , devel@edk2.groups.io Cc: Gerd Hoffmann , Jiewen Yao , Michael Brown , Oliver Steffen , Michael Kubacki References: <20230119134302.1524569-1-ardb@kernel.org> From: "Laszlo Ersek" In-Reply-To: <20230119134302.1524569-1-ardb@kernel.org> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 1/19/23 14:43, Ard Biesheuvel wrote: > QEMU for x86 has a nasty CPU hotplug bug of which the ramifications are > difficult to oversee, even though KVM acceleration seems to be > unaffected. This has been addressed in QEMU mainline, and will percolate > through the ecosystem at its usual pace. In the mean time, due to the > potential impact on production workloads, we will be updating OVMF to > abort the boot when it detects a QEMU build that is affected. > > Tiancore's platform CI uses QEMU in TCG mode, and is therefore impacted > by this mitigation, unless its QEMU builds are updated. This has been > done for Ubuntu-GCC5, but Windows-VS2019 still uses a QEMU build that is > affected. > > Aborting the boot upon detecting the QEMU issue will render all boot > tests carried out on Windows-VS2019 broken unless we implement the > 'escape hatch' that enables proceed-at-your-own-risk mode, and permits > the boot to proceed even if the QEMU issue is detected. > > So let's enable this for Windows-VS2019, and remove it again once it is > no longer needed. > > Cc: Laszlo Ersek > Cc: Gerd Hoffmann > Cc: Jiewen Yao > Cc: Michael Brown > Cc: Oliver Steffen > Cc: Michael Kubacki > > Bugzilla: https://bugzilla.tianocore.org/show_bug.cgi?id=4250 > Signed-off-by: Ard Biesheuvel > --- > OvmfPkg/PlatformCI/.azurepipelines/Windows-VS2019.yml | 2 +- > OvmfPkg/PlatformCI/PlatformBuildLib.py | 12 ++++++++++++ > 2 files changed, 13 insertions(+), 1 deletion(-) Merged as the first commit in range 51411435d559..bf5678b58026, via . Thank you! Laszlo