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, 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 A7DFAC433E0 for ; Mon, 22 Feb 2021 09:48:29 +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 4607E64E44 for ; Mon, 22 Feb 2021 09:48:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4607E64E44 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=7lU+uEktS57XxgMWjng3M6Up6e7gvetNWJR0VO/tOmE=; b=iRKRY29ICnc2okpq35cV7P1Xb 63n9HZ6AdZfdDyfj3VlmSb9bfzFnTd8+G8bLYXOL0WjqDZYr2ssP+FBhGkVr/U6MsWtgyZHL60Iwg Q2VcHCGROEH2jb/yZ8kEjGoO9hSLMR6LoZ2X+kgA7tBV67lv//qxFw4MHJqHYWaXyIcJNZtD36Vsd 7I7NVRbHDkqOsGcennjX7wSodxVPeTnrJ9cm31QHAJSXNjq2NzE3FsBrHMbpwTQkVKsgeJKyJdn5G CTX/w7hPbRH+PTNFDP3+cXiIGMjnacOgsOkmPGfV5mjsGj9C2vl04iEE6cnHLMawtlOJPQVwZo76x dMbApiufA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lE7o8-0002Te-TZ; Mon, 22 Feb 2021 09:47:12 +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 1lE7o6-0002TA-Bn for linux-arm-kernel@lists.infradead.org; Mon, 22 Feb 2021 09:47:11 +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 910C564E2F; Mon, 22 Feb 2021 09:47:08 +0000 (UTC) Received: from disco-boy.misterjones.org ([51.254.78.96] helo=www.loen.fr) by disco-boy.misterjones.org with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94) (envelope-from ) id 1lE7o2-00FI1i-EN; Mon, 22 Feb 2021 09:47:06 +0000 MIME-Version: 1.0 Date: Mon, 22 Feb 2021 09:47:06 +0000 From: Marc Zyngier To: =?UTF-8?Q?Jonathan_Neusch=C3=A4fer?= Subject: Re: [PATCH v7 23/23] [DO NOT MERGE] arm64: Cope with CPUs stuck in VHE mode In-Reply-To: References: <20210208095732.3267263-1-maz@kernel.org> <20210208095732.3267263-24-maz@kernel.org> User-Agent: Roundcube Webmail/1.4.11 Message-ID: <4d4e9a5cff65dbd8861f829089f570e5@kernel.org> X-Sender: maz@kernel.org X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: j.ne@posteo.net, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, psodagud@codeaurora.org, sramana@codeaurora.org, catalin.marinas@arm.com, marcan@marcan.st, pajay@qti.qualcomm.com, kernel-team@android.com, will@kernel.org, ardb@kernel.org 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-20210222_044710_487361_6C607663 X-CRM114-Status: GOOD ( 13.38 ) 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: Srinivas Ramana , Catalin Marinas , Hector Martin , linux-kernel@vger.kernel.org, Ard Biesheuvel , Will Deacon , Ajay Patil , Prasad Sodagudi , kernel-team@android.com, kvmarm@lists.cs.columbia.edu, 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 SGkgSm9uYXRoYW4sCgpPbiAyMDIxLTAyLTIyIDA5OjM1LCBKb25hdGhhbiBOZXVzY2jDpGZlciB3 cm90ZToKPiBIaSwKPiAKPiBPbiBNb24sIEZlYiAwOCwgMjAyMSBhdCAwOTo1NzozMkFNICswMDAw LCBNYXJjIFp5bmdpZXIgd3JvdGU6Cj4+IEl0IHNlZW1zIHRoYXQgdGhlIENQVSBrbm93biBhcyBB cHBsZSBNMSBoYXMgdGhlIHRlcnJpYmxlIGhhYml0Cj4+IG9mIGJlaW5nIHN0dWNrIHdpdGggSENS X0VMMi5FMkg9PTEsIGluIHZpb2xhdGlvbiBvZiB0aGUgYXJjaGl0ZWN0dXJlLgo+IAo+IE1pbm9y IG5pdHBpY2sgZnJvbSB0aGUgc2lkZWxpbmU6IFRoZSBNMSBTb0MgaGFzIHR3byBraW5kcyBvZiBD UFUgaW4gaXQKPiAoSWNlc3Rvcm0gYW5kIEZpcmVzdG9ybSksIHdoaWNoIG1ha2VzICJDUFUga25v d24gYXMgQXBwbGUgTTEiIGEgYml0Cj4gaW1wcmVjaXNlLgoKRmFpciBlbm91Z2guIEhvdyBhYm91 dCBzb21ldGhpbmcgYWxvbmcgdGhlIGxpbmVzIG9mOgoiQXQgbGVhc3Qgc29tZSBvZiB0aGUgQ1BV cyBpbnRlZ3JhdGVkIGluIHRoZSBBcHBsZSBNMSBTb0MgaGF2ZQogIHRoZSB0ZXJyaWJsZSBoYWJp dC4uLiIKCj4gSW4gcHJhY3RpY2FsaXR5IGl0IHNlZW1zIHVubGlrZWx5IHRob3VnaCwgdGhhdCBJ Y2VzdG9ybSBhbmQgRmlyZXN0b3JtCj4gYWN0IGRpZmZlcmVudGx5IHdpdGggcmVnYXJkcyB0byB0 aGUgY29kZSBpbiB0aGlzIHBhdGNoLgoKVGhpcyBpcyBteSBodW5jaCBhcyB3ZWxsLiBBbmQgaWYg dGhleSBkaWQsIGl0IHNob3VsZG4ndCBiZSBhIGJpZyBkZWFsOgp0aGUgImFyY2hpdGVjdHVyZSBj b21wbGlhbnQiIENQVXMgd291bGQgc2ltcGx5IHRyYW5zaXRpb24gdmlhIEVMMQphcyBleHBlY3Rl ZCwgYW5kIGpvaW4gdGhlaXIgYnVnZ3kgZnJpZW5kcyBydW5uaW5nIGF0IEVMMiBzbGlnaHRseSBs YXRlci4KClRoYW5rcywKCiAgICAgICAgIE0uCi0tIApKYXp6IGlzIG5vdCBkZWFkLiBJdCBqdXN0 IHNtZWxscyBmdW5ueS4uLgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBs aXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlz dGluZm8vbGludXgtYXJtLWtlcm5lbAo=