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=-4.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 876B7C433FE for ; Mon, 27 Jul 2020 17:14:06 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5092D2074F for ; Mon, 27 Jul 2020 17:14:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="2KNaGnzb"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="lQ1Z9K59" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5092D2074F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Message-ID:References:In-Reply-To:Subject:To:From: Date:MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=MqZ3Wczzz8SNQFpqJypbX1jhC8DPbu+TZy9aiTFa/L4=; b=2KNaGnzbhpucxcFmDskE3B756 N38mQcja53WbzP1qHRYRZAd9pqSzxeEAXZBrIT2NU28u0KdH8UMZvOVX5zYxKjcp/th5RLKW0kLgG 0l0VUY/ZF87HhjBITYLQyrhgnrWL1YAF5U3b1tO6tPiNtMVRxHIEnX6OW5ow1tYkZF1UmSvdQcFvi lz+D5URkhdZj2ZMKOufpm9lh0zUL9tkB9eCZ//TyJrFMIuyy/TDPDd1J5qHaSzNlGDtCmtJU0qCRF XqAv1nXZ7Cwh/Kev4O/fmE9x/lzc3kYO3ez15+OHqmty7wyuOnkMFfUZ5nf7h7F0hCDfNSPvJDlDs epQ8X6wTA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k06g4-0005Tp-Pm; Mon, 27 Jul 2020 17:12:40 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k06g1-0005Sp-Vr for linux-arm-kernel@lists.infradead.org; Mon, 27 Jul 2020 17:12:38 +0000 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 9B562206E7; Mon, 27 Jul 2020 17:12:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595869956; bh=WogOJT1SpSbDm9BIS5mq+VMEccrmGTd/fbEvNfTWPgM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=lQ1Z9K59C8/AlkD1/eM/JwEqvlO7ySlctuRPoQqZ36nRK1Dy7JlBuq/54o4cIjEcD cbn9dbymYVSeLmrss7+oAwKbKw0LEVhdVjYi0OVwO3tnBP+DzAKy8Wn2N0a0srie7z DjhgZiDTdIYE3B13+xlYN3P1+D7OOQalV77YMcwg= 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 1k06fy-00FNOn-Va; Mon, 27 Jul 2020 18:12:35 +0100 MIME-Version: 1.0 Date: Mon, 27 Jul 2020 18:12:34 +0100 From: Marc Zyngier To: Zhenyu Ye Subject: Re: [RESEND RFC PATCH v1] arm64: kvm: flush tlbs by range in unmap_stage2_range function In-Reply-To: References: <20200724134315.805-1-yezhenyu2@huawei.com> <5d54c860b3b4e7a98e4d53397e6424ae@kernel.org> 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: yezhenyu2@huawei.com, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com, catalin.marinas@arm.com, will@kernel.org, steven.price@arm.com, mark.rutland@arm.com, ascull@google.com, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, arm@kernel.org, xiexiangyou@huawei.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200727_131238_160896_42483B49 X-CRM114-Status: GOOD ( 25.05 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, linux-arch@vger.kernel.org, kvm@vger.kernel.org, suzuki.poulose@arm.com, catalin.marinas@arm.com, linux-kernel@vger.kernel.org, xiexiangyou@huawei.com, steven.price@arm.com, linux-mm@kvack.org, arm@kernel.org, james.morse@arm.com, ascull@google.com, will@kernel.org, kvmarm@lists.cs.columbia.edu, julien.thierry.kdev@gmail.com, linux-arm-kernel@lists.infradead.org Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Wmhlbnl1LAoKT24gMjAyMC0wNy0yNyAxNTo1MSwgWmhlbnl1IFllIHdyb3RlOgo+IEhpIE1hcmMs Cj4gCj4gT24gMjAyMC83LzI2IDE6NDAsIE1hcmMgWnluZ2llciB3cm90ZToKPj4gT24gMjAyMC0w Ny0yNCAxNDo0MywgWmhlbnl1IFllIHdyb3RlOgo+Pj4gTm93IGluIHVubWFwX3N0YWdlMl9yYW5n ZSgpLCB3ZSBmbHVzaCB0bGJzIG9uZSBieSBvbmUganVzdCBhZnRlciB0aGUKPj4+IGNvcnJlc3Bv bmRpbmcgcGFnZXMgY2xlYXJlZC7CoCBIb3dldmVyLCB0aGlzIG1heSBjYXVzZSBzb21lIAo+Pj4g cGVyZm9ybWFuY2UKPj4+IHByb2JsZW1zIHdoZW4gdGhlIHVubWFwIHJhbmdlIGlzIHZlcnkgbGFy Z2UgKHN1Y2ggYXMgd2hlbiB0aGUgdm0KPj4+IG1pZ3JhdGlvbiByb2xsYmFjaywgdGhpcyBtYXkg Y2F1c2Ugdm0gZG93bnRpbWUgdG9vIGxvb2cpLgo+PiAKPj4gWW91IGtlZXAgcmVzZW5kaW5nIHRo aXMgcGF0Y2gsIGJ1dCB5b3UgZG9uJ3QgZ2l2ZSBhbnkgbnVtYmVycwo+PiB0aGF0IHdvdWxkIGJh Y2sgeW91ciBhc3NlcnRpb24uCj4gCj4gSSBoYXZlIHRlc3RlZCB0aGUgZG93bnRpbWUgb2Ygdm0g bWlncmF0aW9uIHJvbGxiYWNrIG9uIGFybTY0LCBhbmQgZm91bmQKPiB0aGUgZG93bnRpbWUgY291 bGQgZXZlbiB0YWtlIHVwIHRvIDdzLiAgVGhlbiBJIHRyYWNlZCB0aGUgY29zdCBvZgo+IHVubWFw X3N0YWdlMl9yYW5nZSgpIGFuZCBmb3VuZCBpdCBjb3VsZCB0YWtlIGEgbWF4aW11bSBvZiAxLjJz LiAgVGhlCj4gdm0gY29uZmlndXJhdGlvbiBpcyBhcyBmb2xsb3dzICh3aXRoIGhpZ2ggbWVtb3J5 IHByZXNzdXJlLCB0aGUgZGlydHkKPiByYXRlIGlzIGFib3V0IDUwME1CL3MpOgo+IAo+ICAgPG1l bW9yeSB1bml0PSdHaUInPjE5MjwvbWVtb3J5Pgo+ICAgPHZjcHUgcGxhY2VtZW50PSdzdGF0aWMn PjQ4PC92Y3B1Pgo+ICAgPG1lbW9yeUJhY2tpbmc+Cj4gICAgIDxodWdlcGFnZXM+Cj4gICAgICAg PHBhZ2Ugc2l6ZT0nMScgdW5pdD0nR2lCJyBub2Rlc2V0PScwJy8+Cj4gICAgIDwvaHVnZXBhZ2Vz Pgo+ICAgPC9tZW1vcnlCYWNraW5nPgoKVGhpcyBtZWFucyBub3RoaW5nIHRvIG1lLCBJJ20gYWZy YWlkLgoKPiAKPiBBZnRlciB0aGlzIHBhdGNoIGFwcGxpZWQsIHRoZSBjb3N0IG9mIHVubWFwX3N0 YWdlMl9yYW5nZSgpIGNhbiByZWR1Y2UgCj4gdG8KPiAxNm1zLCBhbmQgVk0gZG93bnRpbWUgY2Fu IGJlIGxlc3MgdGhhbiAxcy4KPiAKPiBUaGUgZm9sbG93aW5nIGZpZ3VyZSBzaG93cyBhIGNsZWFy IGNvbXBhcmlzb246Cj4gCj4gCSAgICAgIHwJdm0gZG93bnRpbWUgIHwJY29zdCBvZiB1bm1hcF9z dGFnZTJfcmFuZ2UoKQo+IC0tLS0tLS0tLS0tLS0tKy0tLS0tLS0tLS0tLS0tKy0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0KPiBiZWZvcmUgY2hhbmdlIHwJCTdzICAgfAkJMTIwMCBt cwo+IGFmdGVyICBjaGFuZ2UgfAkJMXMgICB8CQkgIDE2IG1zCj4gLS0tLS0tLS0tLS0tLS0rLS0t LS0tLS0tLS0tLS0rLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLQoKSSBkb24ndCBz ZWUgaG93IHlvdSB0dXJuIGEgMS4xODRzIHJlZHVjdGlvbiBpbnRvIGEgNnMgZ2Fpbi4KU3VyZWx5 IHRoZXJlIGlzIG1vcmUgdG8gaXQgdGhhbiB3aGF0IHlvdSBwb3N0ZWQuCgo+Pj4gKwo+Pj4gK8Kg wqDCoCBpZiAoKGVuZCAtIHN0YXJ0KSA+PSA1MTIgPDwgKFBBR0VfU0hJRlQgLSAxMikpIHsKPj4+ ICvCoMKgwqDCoMKgwqDCoCBfX3RsYmkodm1hbGxzMTJlMWlzKTsKPj4gCj4+IEFuZCB3aGF0IGlz IHRoaXMgbWFnaWMgdmFsdWUgYmFzZWQgb24/IFlvdSBkb24ndCBldmVuIG1lbnRpb24gaW4gdGhl Cj4+IGNvbW1pdCBsb2cgdGhhdCB5b3UgYXJlIHRha2luZyB0aGlzIHNob3J0Y3V0Lgo+PiAKPiAK PiAKPiBJZiB0aGUgcGFnZSBudW0gaXMgYmlnZ2VyIHRoYW4gNTEyLCBmbHVzaCBhbGwgdGxicyBv ZiB0aGlzIHZtIHRvIGF2b2lkCj4gc29mdCBsb2NrLXVwcyBvbiBsYXJnZSBUTEIgZmx1c2hpbmcg cmFuZ2VzLiAgSnVzdCBsaWtlIHdoYXQgdGhlCj4gZmx1c2hfdGxiX3JhbmdlKCkgZG9lcy4KCkkn bSBub3Qgc3VyZSB0aGlzIGlzIGFwcGxpY2FibGUgaGVyZSwgYW5kIGl0IGRvZXNuJ3QgbWVhbgp0 aGlzIGlzIGFzIGdvb2Qgb24gb3RoZXIgc3lzdGVtcy4KClRoYW5rcywKCiAgICAgICAgIE0uCi0t IApKYXp6IGlzIG5vdCBkZWFkLiBJdCBqdXN0IHNtZWxscyBmdW5ueS4uLgoKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWls aW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0 cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=