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=-7.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, 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 8FB47CA9EAE for ; Tue, 29 Oct 2019 11:28:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 57F2E21734 for ; Tue, 29 Oct 2019 11:28:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572348508; bh=gUKSWXcfLp8N08IRMS8CZHuXSpvN/MYddgCzXmwoF9M=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=GPdtYFoaL5geY3jjs3iqGBrqgJct1sCWhIX9/NrGuTgU7xsLG4PKJcCG9+NCOG/zq TtpBek40TfojqRo2JtXQ+qQJ6GGZeq/8b4BOaRDg+PfIwhfiUjJsNtyU11NSdGQFs6 ZNG3Ht4u1LUO/8rOZzkJCNHq6PBwRoeVzOUW0RoU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731271AbfJ2L2Q (ORCPT ); Tue, 29 Oct 2019 07:28:16 -0400 Received: from mail.kernel.org ([198.145.29.99]:34546 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730928AbfJ2L2N (ORCPT ); Tue, 29 Oct 2019 07:28:13 -0400 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (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 8125720663; Tue, 29 Oct 2019 11:28:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572348492; bh=gUKSWXcfLp8N08IRMS8CZHuXSpvN/MYddgCzXmwoF9M=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=bxj8AS+8cI/vcQNfxyl1kIVwj3qJo1XrsnWZH/ctVDmfFv3wClysaq7Qv16Ahnqbn BE9/4th5Hmp6Zh3JuiO+lah/XUd9501j1WSLEhIfkHn9tJ4okP+yaDh2ET0jvhJkrG wBSCsuH9JzWJbcapYM0Yaci8LSvaKrU1P/KePTMw= Date: Tue, 29 Oct 2019 11:28:07 +0000 From: Will Deacon To: Thomas Gleixner Cc: LKML , x86@kernel.org, Peter Zijlstra , Andy Lutomirski , Paolo Bonzini , kvm@vger.kernel.org, linux-arch@vger.kernel.org, Mike Rapoport , Josh Poimboeuf , Miroslav Benes Subject: Re: [patch V2 00/17] entry: Provide generic implementation for host and guest entry/exit work Message-ID: <20191029112806.GA12103@willie-the-truck> References: <20191023122705.198339581@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191023122705.198339581@linutronix.de> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Thomas, On Wed, Oct 23, 2019 at 02:27:05PM +0200, Thomas Gleixner wrote: > When working on a way to move out the posix cpu timer expiry out of the > timer interrupt context, I noticed that KVM is not handling pending task > work before entering a guest. A quick hack was to add that to the x86 KVM > handling loop. The discussion ended with a request to make this a generic > infrastructure possible with also moving the per arch implementations of > the enter from and return to user space handling generic. > > https://lore.kernel.org/r/89E42BCC-47A8-458B-B06A-D6A20D20512C@amacapital.net > > The series implements the syscall enter/exit and the general exit to > userspace work handling along with the pre guest enter functionality. > > Changes vs. RFC version: > > - Dropped ARM64 conversion as requested by ARM64 folks If you fancy another crack at arm64 on your way back from Lyon, we've now got more of the asm->C conversion queued up here: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/log/?h=for-next/entry-s-to-c No worries if not, but figured it was worth letting you know anyway. Will