From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-1.mimecast.com (us-smtp-1.mimecast.com [205.139.110.120]) by mx.groups.io with SMTP id smtpd.web12.69.1594830142240391222 for ; Wed, 15 Jul 2020 09:22:22 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=WVcuntxO; spf=pass (domain: redhat.com, ip: 205.139.110.120, mailfrom: lersek@redhat.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1594830141; 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=IgBLqPgq65F8MEFNtpErkGlZG9EdxwcdURSpjJHcm/M=; b=WVcuntxO8vEMgmcyUgKZHJ1HRUK9462NY8OnikzyvuL5NliDwD7+C+DdjZO87YIhHOJkjY kJmb/rMK4pfDq0VqkjgKO1cNagBEiqd8GTyjV7tFo/CTey5lG/Zy1t1eECz0eE33CaUEJJ 1RCppFQ7vjnXaHZgjPJ9JAxWmUkzhtM= 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-244-Nq84SCDIP8GRg2k5FQKbPw-1; Wed, 15 Jul 2020 12:22:09 -0400 X-MC-Unique: Nq84SCDIP8GRg2k5FQKbPw-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 4735B809E06; Wed, 15 Jul 2020 16:22:08 +0000 (UTC) Received: from lacos-laptop-7.usersys.redhat.com (ovpn-114-3.ams2.redhat.com [10.36.114.3]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5A67B100238D; Wed, 15 Jul 2020 16:22:06 +0000 (UTC) Subject: Re: [edk2-devel] [PATCH v10 25/46] OvmfPkg/VmgExitLib: Add support for MWAIT/MWAITX NAE events To: devel@edk2.groups.io, thomas.lendacky@amd.com Cc: Brijesh Singh , Ard Biesheuvel , Eric Dong , Jordan Justen , Liming Gao , Michael D Kinney , Ray Ni References: <7daa9f497e0ef2da547d71404f20c02be6123381.1594736896.git.thomas.lendacky@amd.com> From: "Laszlo Ersek" Message-ID: Date: Wed, 15 Jul 2020 18:22:05 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <7daa9f497e0ef2da547d71404f20c02be6123381.1594736896.git.thomas.lendacky@amd.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 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 07/14/20 16:37, Lendacky, Thomas wrote: > From: Tom Lendacky > > BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198 > > Under SEV-ES, a MWAIT/MWAITX 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 | 36 +++++++++++++++++++ > 1 file changed, 36 insertions(+) Thanks for the comment style fix, my ACK stands. Laszlo