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=-3.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 CA4A5C433E1 for ; Mon, 27 Jul 2020 18:01:11 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 7171920825 for ; Mon, 27 Jul 2020 18:01:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="wVbvqo+Q" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7171920825 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 0F1134B7C1; Mon, 27 Jul 2020 14:01:11 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@kernel.org Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id pwDQSTQYTOGC; Mon, 27 Jul 2020 14:01:09 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 475C44B835; Mon, 27 Jul 2020 14:01:09 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 9F39B4B7AD for ; Mon, 27 Jul 2020 14:01:07 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id L6bJojsb0WFo for ; Mon, 27 Jul 2020 14:01:06 -0400 (EDT) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id A500B4B74E for ; Mon, 27 Jul 2020 14:01:06 -0400 (EDT) Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8B5B8207FC; Mon, 27 Jul 2020 18:01:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595872865; bh=LiT0HhpVCBd1KW3rnKmOUK2mjDwkRwzZ96Gt737VW3w=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=wVbvqo+QOkquTPq8D8UIbArLkAANHWm9K2O8YKGLDhq7rVwWYCt8R+08PP8Uulyde tp+srKOoVdtxLtfaNacQ70XOYs2ZBh5PxFi2z4I9ytQRIwmhrWPtrKrTOkRTyzKY3y Cj4SA95BTOO1EVePed4aVL2S5Z+NBrdGP8Nrc1qc= Received: from disco-boy.misterjones.org ([51.254.78.96] helo=www.loen.fr) by disco-boy.misterjones.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.92) (envelope-from ) id 1k07Qu-00FO6r-66; Mon, 27 Jul 2020 19:01:04 +0100 MIME-Version: 1.0 Date: Mon, 27 Jul 2020 19:01:04 +0100 From: Marc Zyngier To: Andrew Jones Subject: Re: [PATCH 0/5] KVM: arm64: pvtime: Fixes and a new cap In-Reply-To: <20200711100434.46660-1-drjones@redhat.com> References: <20200711100434.46660-1-drjones@redhat.com> User-Agent: Roundcube Webmail/1.4.5 Message-ID: X-Sender: maz@kernel.org X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: drjones@redhat.com, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, pbonzini@redhat.com, steven.price@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Cc: pbonzini@redhat.com, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, steven.price@arm.com X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu On 2020-07-11 11:04, Andrew Jones wrote: > The first three patches in the series are fixes that come from testing > and reviewing pvtime code while writing the QEMU support (I'll reply > to this mail with a link to the QEMU patches after posting - which I'll > do shortly). The last patch is only a convenience for userspace, and I > wouldn't be heartbroken if it wasn't deemed worth it. The QEMU patches > I'll be posting are currently written without the cap. However, if the > cap is accepted, then I'll change the QEMU code to use it. > > Thanks, > drew > > Andrew Jones (5): > KVM: arm64: pvtime: steal-time is only supported when configured > KVM: arm64: pvtime: Fix potential loss of stolen time > KVM: arm64: pvtime: Fix stolen time accounting across migration > KVM: Documentation minor fixups > arm64/x86: KVM: Introduce steal-time cap > > Documentation/virt/kvm/api.rst | 20 ++++++++++++++++---- > arch/arm64/include/asm/kvm_host.h | 2 +- > arch/arm64/kvm/arm.c | 3 +++ > arch/arm64/kvm/pvtime.c | 31 +++++++++++++++---------------- > arch/x86/kvm/x86.c | 3 +++ > include/linux/kvm_host.h | 19 +++++++++++++++++++ > include/uapi/linux/kvm.h | 1 + > 7 files changed, 58 insertions(+), 21 deletions(-) Hi Andrew, Sorry about the time it took to get to this series. Although I had a number of comments, they are all easy to address, and you will hopefully be able to respin it quickly (assuming we agree that patch #1 is unnecessary). Thanks, M. -- Jazz is not dead. It just smells funny... _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm