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=-8.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 1FFC2C4338F for ; Wed, 4 Aug 2021 09:54:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0838761040 for ; Wed, 4 Aug 2021 09:54:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237217AbhHDJzJ (ORCPT ); Wed, 4 Aug 2021 05:55:09 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:44012 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236483AbhHDJzI (ORCPT ); Wed, 4 Aug 2021 05:55:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1628070896; 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=IVyRjDmeX+wbvqFuUsJ5xLBNN+y9TnRnqtbgDhoq1nM=; b=GX9CB2qYjrMAqdyo5lgqZTTquYuf6xvep7NeL72DOvQ82qjJOfb/epdRHkU13yk89+MTfZ N7tAQQWzuNpRuULKyEpvht3u/YlVpOBgsElw+Go9dIxFU4hnP1Le4k+Z802plGl8z8K85d FMzxPR3YBBG6Wo7Syzx2jJm3Hp7cfsU= Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-371-wUqhYAr7PZK6FP7TUhV76w-1; Wed, 04 Aug 2021 05:54:54 -0400 X-MC-Unique: wUqhYAr7PZK6FP7TUhV76w-1 Received: by mail-wm1-f71.google.com with SMTP id y186-20020a1c32c30000b02902b5ac887cfcso286521wmy.2 for ; Wed, 04 Aug 2021 02:54:54 -0700 (PDT) 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=IVyRjDmeX+wbvqFuUsJ5xLBNN+y9TnRnqtbgDhoq1nM=; b=J4p6m/yLL8UW0kOpvUwfeiLhmXtv9e1wY3TcqsxDeVVcrm+yVG4vJqk5pJWkNb2LXM n7TTG8o35jm/c5OeNAK+Xl5MsvrOpP4TLvKk+9guQdTnz4tbs3kgquMhKdZePAYNh8GL jQPF6dnJIOD2BZx2jXH2GwnZIHrqtR6OU8cuIYAJtUdpXKjhyvKFWKyJuosP5mp3hAJD p5P14Omkiyv04XJtBONGJVnhiXQzRu10Y7Yi87ILkvcWNiQTlEL0Ji1+XtMJY013SmZx vZzA4VoDP8p06nDVgTGkgxww3OLWt4hT4SaRIEPqxnojTPt8AwLydCmrmIWxZWSWmjtO 2n3w== X-Gm-Message-State: AOAM533WOVQB3eDq7xI3yUqUnJbKZ2mc7ZFtlyDmJOFrVdCjB0vnWrA4 9RBrEL2agqjY/KVH8SkloHLnfxwT959kosQ0GWXNQ4+en9Xg1G2V7Fjl9+hM0JymfWJWSNKnEGH NPfNqqg4nEhGw X-Received: by 2002:adf:e652:: with SMTP id b18mr28298499wrn.349.1628070893681; Wed, 04 Aug 2021 02:54:53 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyEzjSkw2SNBjsVvvj0XG8DdnV1HOS2cohTznkyoER8S0vQ+eZzwQZxWq98BnI25UUDHEHBBA== X-Received: by 2002:adf:e652:: with SMTP id b18mr28298474wrn.349.1628070893524; Wed, 04 Aug 2021 02:54:53 -0700 (PDT) Received: from ?IPv6:2001:b07:add:ec09:c399:bc87:7b6c:fb2a? ([2001:b07:add:ec09:c399:bc87:7b6c:fb2a]) by smtp.gmail.com with ESMTPSA id o17sm1815503wrw.17.2021.08.04.02.54.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 04 Aug 2021 02:54:53 -0700 (PDT) Subject: Re: What does KVM_HINTS_REALTIME do? To: Pankaj Gupta , Stefan Hajnoczi Cc: kvm@vger.kernel.org, Jenifer Abrams , atheurer@redhat.com, jmario@redhat.com, "Michael S. Tsirkin" , Wanpeng Li , Eduardo Habkost , Maxim Levitsky , Marcelo Tosatti References: From: Paolo Bonzini Message-ID: Date: Wed, 4 Aug 2021 11:54:51 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 04/08/21 11:06, Pankaj Gupta wrote: >> Do we need to mention "halt_poll_ns" at host side also will also be disabled? > with KVM_FEATURE_POLL_CONTROL > > Sorry, pressed enter quickly in previous email. That is done by the cpuidle-haltpoll driver, not just by the presence of the feature. Paolo