From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F21C0C3F2CD for ; Thu, 5 Mar 2020 14:24:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C8FD821739 for ; Thu, 5 Mar 2020 14:24:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="EixRMxFx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725974AbgCEOYB (ORCPT ); Thu, 5 Mar 2020 09:24:01 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:34610 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725965AbgCEOYB (ORCPT ); Thu, 5 Mar 2020 09:24:01 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1583418239; 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=7wS/wcb85DkcLBGKnRxV24Ml02OHwCI8OhAwRihp0FA=; b=EixRMxFxaR9v60oqUjfN07paIyEu1l92RwDz2CmDxYJ8XOiX9Kyap0p+pmWtawBGPrxh9H ynr9tBTDfa75j+CGLHKDsBB+QuLvDl1gglUJRF9YP2Dm4gV8sY4ezn6VDi9rIwzo0Xp5sa t2tRftcKqW3+e+buBFDam1WTuOzRu2o= Received: from mail-wr1-f72.google.com (mail-wr1-f72.google.com [209.85.221.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-53-rKJMpKdsOKuE3RTr4aJeRw-1; Thu, 05 Mar 2020 09:23:57 -0500 X-MC-Unique: rKJMpKdsOKuE3RTr4aJeRw-1 Received: by mail-wr1-f72.google.com with SMTP id t14so2359518wrs.12 for ; Thu, 05 Mar 2020 06:23:57 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=7wS/wcb85DkcLBGKnRxV24Ml02OHwCI8OhAwRihp0FA=; b=Qrt9C5sbusZ9m/i8DK4MULJDYtG8/f+1vd8e3CGvHSOu2ZxLh1xwnWlNNIO7Uc/Qqf KFUxEbX3zwm1UOCHDxiSfyEX2BVaDv9Vyjlzb9uDvvY4HU4uSPi/84ZOmhlNQB+94Jt8 7lsOD2EXwaH3poGn5NRx1lwuRNBxyRvW/DMmvFI75W4XKVNuRXSIysFtbGmE/UMhwXHq 6nwV2biE3+YG4aCVld8lIVIEg8A7681Qn/CmI0Z/XaH+k5CV2/H9s2jWE2bZLMTkDttu 9jBpkfvnRk4ZT1hRpwIv8preGEmC3lJRmf/IgV/Miy54Mcbud7kzU+foIfzwPRXJ2ZKE pmOA== X-Gm-Message-State: ANhLgQ18h7lFJvrKCfAUmtfrrRlv7JZCRBLnqvG4cpBP2esPPLqSDSdh JTpsUAul2ofJQPqlk4Jf5IUay0q7i1b0zNhy6nnm74DB682o+jlye1/lTyF65UF6YXXKh0hXkPf vc7A5/8n1qofw X-Received: by 2002:a05:6000:1186:: with SMTP id g6mr1840639wrx.331.1583418236633; Thu, 05 Mar 2020 06:23:56 -0800 (PST) X-Google-Smtp-Source: ADFU+vsCAlsOC+yFneBefdJyj3+DCMaXPX18cRQKObXoQhxnoFrirb6aowWyILujBlj4CBuhZjFHmQ== X-Received: by 2002:a05:6000:1186:: with SMTP id g6mr1840623wrx.331.1583418236409; Thu, 05 Mar 2020 06:23:56 -0800 (PST) Received: from ?IPv6:2001:b07:6468:f312:9def:34a0:b68d:9993? ([2001:b07:6468:f312:9def:34a0:b68d:9993]) by smtp.gmail.com with ESMTPSA id z12sm17349361wrs.43.2020.03.05.06.23.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 05 Mar 2020 06:23:55 -0800 (PST) Subject: Re: [PATCH v2 1/4] x86/kvm/hyper-v: Align the hcall param for kvm_hyperv_exit To: Jon Doron , kvm@vger.kernel.org, linux-hyperv@vger.kernel.org Cc: vkuznets@redhat.com References: <20200305140142.413220-1-arilou@gmail.com> <20200305140142.413220-2-arilou@gmail.com> From: Paolo Bonzini Message-ID: <09762184-9913-d334-0a33-b76d153bc371@redhat.com> Date: Thu, 5 Mar 2020 15:23:54 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <20200305140142.413220-2-arilou@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 05/03/20 15:01, Jon Doron wrote: > Signed-off-by: Jon Doron > --- > include/uapi/linux/kvm.h | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h > index 4b95f9a31a2f..9b4d449f4d20 100644 > --- a/include/uapi/linux/kvm.h > +++ b/include/uapi/linux/kvm.h > @@ -200,6 +200,7 @@ struct kvm_hyperv_exit { > __u64 input; > __u64 result; > __u64 params[2]; > + __u32 pad; > } hcall; > } u; > }; > Can you explain the purpose of this patch? Paolo