From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-1.mimecast.com (us-smtp-1.mimecast.com [207.211.31.120]) by mx.groups.io with SMTP id smtpd.web11.3452.1591866561208149942 for ; Thu, 11 Jun 2020 02:09:21 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=bzXgonat; spf=pass (domain: redhat.com, ip: 207.211.31.120, mailfrom: lersek@redhat.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1591866560; 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=Cxes5Da5ssjXdAQL0qs+KWW4xPcoGBI3CyYaOCI5iVU=; b=bzXgonatueWuBDWpIk/BBjyQZjnfXC7L35LkKIr7V8LuKnajhw2l4QBNs8SPOEZB3erqEn N0sUnDBahwSX1lUwMX16lxQubEak4pNW0eZgaJ2FRopFjTjIRdVe/oMbP8qkYVGigPRIye 6fABd/D3+o9ckYM0wEImuoMYCZ5HcX4= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-437-BZfGWNoQNq-PAarborIK0g-1; Thu, 11 Jun 2020 05:09:16 -0400 X-MC-Unique: BZfGWNoQNq-PAarborIK0g-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E395B8730AC; Thu, 11 Jun 2020 09:09:14 +0000 (UTC) Received: from lacos-laptop-7.usersys.redhat.com (ovpn-114-21.ams2.redhat.com [10.36.114.21]) by smtp.corp.redhat.com (Postfix) with ESMTP id 11F401A92D; Thu, 11 Jun 2020 09:09:12 +0000 (UTC) Subject: Re: [PATCH v9 23/46] OvmfPkg/VmgExitLib: Add support for RDTSCP NAE events To: Tom Lendacky , devel@edk2.groups.io Cc: Brijesh Singh , Ard Biesheuvel , Eric Dong , Jordan Justen , Liming Gao , Michael D Kinney , Ray Ni References: From: "Laszlo Ersek" Message-ID: <0e17805f-6348-401d-32c8-f6c2c62676bb@redhat.com> Date: Thu, 11 Jun 2020 11:09:12 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 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 06/05/20 15:27, Tom Lendacky wrote: > BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198 > > Under SEV-ES, a RDTSCP intercept generates a #VC exception. VMGEXIT must be > used to allow the hypervisor to handle this intercept. > > Cc: Jordan Justen > Cc: Laszlo Ersek > Cc: Ard Biesheuvel > Acked-by: Laszlo Ersek > Signed-off-by: Tom Lendacky > --- > OvmfPkg/Library/VmgExitLib/VmgExitVcHandler.c | 47 ++++++++++++++++++++ > 1 file changed, 47 insertions(+) OK