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=-13.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED 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 1EB70C433B4 for ; Tue, 27 Apr 2021 15:14:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E02AF610FC for ; Tue, 27 Apr 2021 15:14:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237638AbhD0PPh (ORCPT ); Tue, 27 Apr 2021 11:15:37 -0400 Received: from forward2-smtp.messagingengine.com ([66.111.4.226]:33735 "EHLO forward2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236578AbhD0PPf (ORCPT ); Tue, 27 Apr 2021 11:15:35 -0400 Received: from compute2.internal (compute2.nyi.internal [10.202.2.42]) by mailforward.nyi.internal (Postfix) with ESMTP id E9D381940ACD; Tue, 27 Apr 2021 11:14:51 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute2.internal (MEProxy); Tue, 27 Apr 2021 11:14:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm2; bh=tj0LVf hJSNdorV650wiLh2qFHVZClezs2YTF435ywCY=; b=KJLR6Fkr9QyWaHzs5KXppX kCWHm34QzLhX2IFC/hSyo5qZ9FbXZi5Jm4Wn3uXTpkaqAMp246jKhoIfi1Cojubh abm93/Xr30JlAMND2jzL/GXI/UsB41EORexnZ9WbtWDdA0XATmlCyAUGEIM5J4i6 epFEnYh+DFt5UyzXEZ8BGZKTRuqnrha6h4eIIn1I4zpr/2EdP3KFwG/7MX0eCvRL +dvDeAtAOsdm08Zc8omiSzNlJCnCwsfyr3P7FEW6hEiWmagW1LqQUTAOgv/A9sco V74zluMF9SOqnaDYvUI4TOLWUwoUn/imiu01C2paUITBen5+PcQwLVUOGk1+GAHg == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrvddvtddgkeejucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhepvffujghfhfffkfggtgesthdtredttddttdenucfhrhhomhepffgrvhhiugcu gfgumhhonhgushhonhcuoegumhgvsegumhgvrdhorhhgqeenucggtffrrghtthgvrhhnpe fhkeeguedtvdegffffteehjedvjeeitefgfefgffdugeffffegudehgeetgeelkeenucfk phepkedurddukeejrddviedrvdefkeenucevlhhushhtvghrufhiiigvpedtnecurfgrrh grmhepmhgrihhlfhhrohhmpegumhgvsegumhgvrdhorhhg X-ME-Proxy: Received: from disaster-area.hh.sledj.net (disaster-area.hh.sledj.net [81.187.26.238]) by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 27 Apr 2021 11:14:47 -0400 (EDT) Received: from localhost (disaster-area.hh.sledj.net [local]) by disaster-area.hh.sledj.net (OpenSMTPD) with ESMTPA id 686a8429; Tue, 27 Apr 2021 15:14:46 +0000 (UTC) To: Hikaru Nishida , kvm@vger.kernel.org Cc: suleiman@google.com, Hikaru Nishida , Borislav Petkov , "H. Peter Anvin" , Ingo Molnar , Jim Mattson , Joerg Roedel , John Stultz , Paolo Bonzini , Sean Christopherson , Stephen Boyd , Thomas Gleixner , Vitaly Kuznetsov , Wanpeng Li , linux-kernel@vger.kernel.org, x86@kernel.org Subject: Re: [RFC PATCH 2/6] x86/kvm: Add a struct and constants for virtual suspend time injection In-Reply-To: <20210426090644.2218834-3-hikalium@chromium.org> References: <20210426090644.2218834-1-hikalium@chromium.org> <20210426090644.2218834-3-hikalium@chromium.org> X-HGTTG: zarquon From: David Edmondson Date: Tue, 27 Apr 2021 16:14:46 +0100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Monday, 2021-04-26 at 18:06:41 +09, Hikaru Nishida wrote: > This patch adds definitions that are needed by both host and guest s/This patch adds/Add/ > to implement virtual suspend time injection. > This patch also adds #include in s/This patch also adds/Also add/ > kernel/time/timekeeping.c to make necesarily functions which will be s/necesarily/necessary/ > introduced in later patches available. > > Signed-off-by: Hikaru Nishida > --- > > arch/x86/include/uapi/asm/kvm_para.h | 6 ++++++ > kernel/time/timekeeping.c | 1 + > 2 files changed, 7 insertions(+) > > diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h > index 950afebfba88..13788b01094f 100644 > --- a/arch/x86/include/uapi/asm/kvm_para.h > +++ b/arch/x86/include/uapi/asm/kvm_para.h > @@ -33,6 +33,7 @@ > #define KVM_FEATURE_PV_SCHED_YIELD 13 > #define KVM_FEATURE_ASYNC_PF_INT 14 > #define KVM_FEATURE_MSI_EXT_DEST_ID 15 > +#define KVM_FEATURE_HOST_SUSPEND_TIME 16 > > #define KVM_HINTS_REALTIME 0 > > @@ -54,6 +55,7 @@ > #define MSR_KVM_POLL_CONTROL 0x4b564d05 > #define MSR_KVM_ASYNC_PF_INT 0x4b564d06 > #define MSR_KVM_ASYNC_PF_ACK 0x4b564d07 > +#define MSR_KVM_HOST_SUSPEND_TIME 0x4b564d08 > > struct kvm_steal_time { > __u64 steal; > @@ -64,6 +66,10 @@ struct kvm_steal_time { > __u32 pad[11]; > }; > > +struct kvm_host_suspend_time { > + __u64 suspend_time_ns; > +}; > + > #define KVM_VCPU_PREEMPTED (1 << 0) > #define KVM_VCPU_FLUSH_TLB (1 << 1) > > diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c > index 6aee5768c86f..ff0304de7de9 100644 > --- a/kernel/time/timekeeping.c > +++ b/kernel/time/timekeeping.c > @@ -22,6 +22,7 @@ > #include > #include > #include > +#include > > #include "tick-internal.h" > #include "ntp_internal.h" > -- > 2.31.1.498.g6c1eba8ee3d-goog dme. -- Too much information, running through my brain.