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=-0.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 CD699C433E1 for ; Fri, 29 May 2020 09:41:53 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 5660C21501 for ; Fri, 29 May 2020 09:41:53 +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="VQmr+kTg" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5660C21501 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 F08164B1C0; Fri, 29 May 2020 05:41:52 -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 js3L3Y0ScSPB; Fri, 29 May 2020 05:41:50 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 89E7C4B1C1; Fri, 29 May 2020 05:41:50 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id C32654B1BE for ; Fri, 29 May 2020 05:41:48 -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 o15oMQhcelRF for ; Fri, 29 May 2020 05:41:47 -0400 (EDT) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id B88934B16C for ; Fri, 29 May 2020 05:41:47 -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 8050720810; Fri, 29 May 2020 09:41:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590745306; bh=7656s4eYWhYzzAhobQ/p864RjB2diU/xpekCGE7YNZ0=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=VQmr+kTgz6xT6jL5yWNdjI6CmqoEcxAQUP7Yjg5gfK3TvAVPbNdb45ezQRJ9TGm5G TYEBNnIFHaH7aClx19eT+daZr2aERlM073SlgHsQTree3AC6yibKxy1OhiiSgkbohN obMAXKU++5wiqUu1N0nZETdr3VtZjSVNHuHPj2mA= 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 1jebWK-00GEXJ-Vz; Fri, 29 May 2020 10:41:45 +0100 MIME-Version: 1.0 Date: Fri, 29 May 2020 10:41:44 +0100 From: Marc Zyngier To: Gavin Shan Subject: Re: [PATCH RFCv2 9/9] arm64: Support async page fault In-Reply-To: <6a4a82a4-af01-98c2-c854-9199f55f7bd3@redhat.com> References: <20200508032919.52147-1-gshan@redhat.com> <20200508032919.52147-10-gshan@redhat.com> <81adf013-3de7-23e6-7648-8aec821b033c@redhat.com> <8ab64c6a-582b-691d-79ab-21cdc0455cd3@redhat.com> <6a4a82a4-af01-98c2-c854-9199f55f7bd3@redhat.com> User-Agent: Roundcube Webmail/1.4.4 Message-ID: <6965aaf641a23fab64fbe2ceeb790272@kernel.org> X-Sender: maz@kernel.org X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: gshan@redhat.com, pbonzini@redhat.com, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, shan.gavin@gmail.com, catalin.marinas@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Cc: catalin.marinas@arm.com, linux-kernel@vger.kernel.org, shan.gavin@gmail.com, Paolo Bonzini , will@kernel.org, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org 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: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu T24gMjAyMC0wNS0yOSAwMDowMiwgR2F2aW4gU2hhbiB3cm90ZToKPiBIaSBQYW9sbywKPiAKPiBP biA1LzI4LzIwIDg6NDggUE0sIFBhb2xvIEJvbnppbmkgd3JvdGU6Cj4+IE9uIDI4LzA1LzIwIDA4 OjE0LCBHYXZpbiBTaGFuIHdyb3RlOgo+Pj4+IC0gZm9yIHg4NiB3ZSdyZSBhbHNvIHRoaW5raW5n IG9mIGluaXRpYXRpbmcgdGhlIHBhZ2UgZmF1bHQgZnJvbSB0aGUKPj4+PiBleGNlcHRpb24gaGFu ZGxlciwgcmF0aGVyIHRoYW4gZG9pbmcgc28gZnJvbSB0aGUgaHlwZXJ2aXNvciBiZWZvcmUKPj4+ PiBpbmplY3RpbmcgdGhlIGV4Y2VwdGlvbi7CoCBJZiBBUk0gbGVhZHMgdGhlIHdheSBoZXJlLCB3 ZSB3b3VsZCBkbyBvdXIKPj4+PiBiZXN0IHRvIHNoYXJlIGNvZGUgd2hlbiB4ODYgZG9lcyB0aGUg c2FtZS4KPj4+IAo+Pj4gU29ycnksIFBhb2xvLCBJIGRvbid0IGZvbGxvdyB5b3VyIGlkZWEgaGVy ZS4gQ291bGQgeW91IHBsZWFzZSBwcm92aWRlCj4+PiBtb3JlIGRldGFpbHM/Cj4+IAo+PiBUaGUg aWRlYSBpcyB0byBpbmplY3Qgc3RhZ2UyIHBhZ2UgZmF1bHRzIGludG8gdGhlIGd1ZXN0IGV2ZW4g YmVmb3JlIAo+PiB0aGUKPj4gaG9zdCBzdGFydHMgcG9wdWxhdGVzIHRoZSBwYWdlLiAgVGhlIGd1 ZXN0IHRoZW4gaW52b2tlcyBhIGh5cGVyY2FsbCwKPj4gdGVsbGluZyB0aGUgaG9zdCB0byBwb3B1 bGF0ZSB0aGUgcGFnZSB0YWJsZSBhbmQgaW5qZWN0IHRoZSAncGFnZSAKPj4gcmVhZHknCj4+IGV2 ZW50IChpbnRlcnJ1cHQpIHdoZW4gaXQncyBkb25lLgo+PiAKPj4gRm9yIHg4NiB0aGUgYWR2YW50 YWdlIGlzIHRoYXQgdGhlIHByb2Nlc3NvciBjYW4gdGFrZSBjYXJlIG9mIHJhaXNpbmcgCj4+IHRo ZQo+PiBzdGFnZTIgcGFnZSBmYXVsdCBpbiB0aGUgZ3Vlc3QsIHNvIGl0J3MgZmFzdGVyLgo+PiAK PiBJIHRoaW5rIHRoZXJlIG1pZ2h0IGJlIHRvbyBtdWNoIG92ZXJoZWFkIGlmIHRoZSBwYWdlIGNh biBiZSBwb3B1bGF0ZWQKPiBxdWlja2x5IGJ5IGhvc3QuIEZvciBleGFtcGxlLCBpdCdzIGZhc3Qg dG8gcG9wdWxhdGUgdGhlIHBhZ2VzIGlmIHN3YXBpbgo+IGlzbid0IGludm9sdmVkLgo+IAo+IElm IEknbSBjb3JyZWN0IGVub3VnaCwgaXQgc2VlbXMgYXJtNjQgZG9lc24ndCBoYXZlIHNpbWlsYXIg bWVjaGFuaXNtLAo+IHJvdXRpbmcgc3RhZ2UyIHBhZ2UgZmF1bHQgdG8gZ3Vlc3QuCgpJbmRlZWQs IHRoaXMgaXNuJ3QgYSB0aGluZyBvbiBhcm02NC4gRXhjZXB0aW9uIGNhdXNlZCBieSBhIFMyIGZh dWx0IGFyZQphbHdheXMgcm91dGVkIHRvIEVMMi4KCiAgICAgICAgIE0uCi0tIApKYXp6IGlzIG5v dCBkZWFkLiBJdCBqdXN0IHNtZWxscyBmdW5ueS4uLgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwprdm1hcm0gbWFpbGluZyBsaXN0Cmt2bWFybUBsaXN0cy5j cy5jb2x1bWJpYS5lZHUKaHR0cHM6Ly9saXN0cy5jcy5jb2x1bWJpYS5lZHUvbWFpbG1hbi9saXN0 aW5mby9rdm1hcm0K