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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6D9DDC433F5 for ; Wed, 25 May 2022 08:32:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=5Xkwq7D1Ea+fVZU5RRRnxD2+prqSWzQ/YRqSMEHINug=; b=y9q8pPs3zDVALo RSYO8aScUNrXUu4+e1xs+9Ti6fQxDw1PHvvkvPMAMiAAeSU49llGjnsupRFScPRJ7wrst/60RPH8S FA2upMEuRTivPR377qJMwgrjGgF+ftE4tOZkBlHM7ueTwdeNpVF2T1UKE2S7hxf4pY9tDxHYkcLqe PqkiWKX9pzraIBHuA1qWZuB4l8qYv9+Jj21oRkmPLCqF5DulDkfssM84juOTLbHeIXBXlfjdLu0hm UoMA+B2+e+0CKzH0kHlf82vozh/xHkByY7j8s0rlL1gK29V0FLUhdkHeLRpy+cDDEIlTT+DXVzvAU hxvysswS/eet02zVhJmg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ntmQD-00AQp6-83; Wed, 25 May 2022 08:31:13 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ntmQ9-00AQnl-Fa for linux-arm-kernel@lists.infradead.org; Wed, 25 May 2022 08:31:10 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 24AEB1FB; Wed, 25 May 2022 01:31:08 -0700 (PDT) Received: from FVFF77S0Q05N (unknown [10.57.0.228]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id F3E743F73D; Wed, 25 May 2022 01:31:02 -0700 (PDT) Date: Wed, 25 May 2022 09:30:55 +0100 From: Mark Rutland To: Tong Tiangen Cc: James Morse , Andrew Morton , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Robin Murphy , Dave Hansen , Catalin Marinas , Will Deacon , Alexander Viro , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , x86@kernel.org, "H . Peter Anvin" , linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Kefeng Wang , Xie XiuQi , Guohanjun Subject: Re: [PATCH -next v4 3/7] arm64: add support for machine check error safe Message-ID: References: <20220420030418.3189040-1-tongtiangen@huawei.com> <20220420030418.3189040-4-tongtiangen@huawei.com> <46e5954c-a9a8-f4a8-07cc-de42e2753051@huawei.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <46e5954c-a9a8-f4a8-07cc-de42e2753051@huawei.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220525_013109_612902_84976B0E X-CRM114-Status: GOOD ( 23.64 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gVGh1LCBNYXkgMTksIDIwMjIgYXQgMDI6Mjk6NTRQTSArMDgwMCwgVG9uZyBUaWFuZ2VuIHdy b3RlOgo+IAo+IAo+IOWcqCAyMDIyLzUvMTMgMjM6MjYsIE1hcmsgUnV0bGFuZCDlhpnpgZM6Cj4g PiBPbiBXZWQsIEFwciAyMCwgMjAyMiBhdCAwMzowNDoxNEFNICswMDAwLCBUb25nIFRpYW5nZW4g d3JvdGU6Cj4gPiA+IER1cmluZyB0aGUgcHJvY2Vzc2luZyBvZiBhcm02NCBrZXJuZWwgaGFyZHdh cmUgbWVtb3J5IGVycm9ycyhkb19zZWEoKSksIGlmCj4gPiA+IHRoZSBlcnJvcnMgaXMgY29uc3Vt ZWQgaW4gdGhlIGtlcm5lbCwgdGhlIGN1cnJlbnQgcHJvY2Vzc2luZyBpcyBwYW5pYy4KPiA+ID4g SG93ZXZlciwgaXQgaXMgbm90IG9wdGltYWwuCj4gPiA+IAo+ID4gPiBUYWtlIHVhY2Nlc3MgZm9y IGV4YW1wbGUsIGlmIHRoZSB1YWNjZXNzIG9wZXJhdGlvbiBmYWlscyBkdWUgdG8gbWVtb3J5Cj4g PiA+IGVycm9yLCBvbmx5IHRoZSB1c2VyIHByb2Nlc3Mgd2lsbCBiZSBhZmZlY3RlZCwga2lsbCB0 aGUgdXNlciBwcm9jZXNzCj4gPiA+IGFuZCBpc29sYXRlIHRoZSB1c2VyIHBhZ2Ugd2l0aCBoYXJk d2FyZSBtZW1vcnkgZXJyb3JzIGlzIGEgYmV0dGVyIGNob2ljZS4KPiA+IAo+ID4gQ29uY2VwdHVh bGx5LCBJJ20gZmluZSB3aXRoIHRoZSBpZGVhIG9mIGNvbnN0cmFpbmluZyB3aGF0IHdlIGRvIGZv ciBhCj4gPiB0cnVlIHVhY2Nlc3MsIGJ1dCBJIGRvbid0IGxpa2UgdGhlIGltcGxlbWVudGF0aW9u IG9mIHRoaXMgYXQgYWxsLCBhbmQgSQo+ID4gdGhpbmsgd2UgZmlyc3QgbmVlZCB0byBjbGVhbiB1 cCB0aGUgYXJtNjQgZXh0YWJsZSB1c2FnZSB0byBjbGVhcmx5Cj4gPiBkaXN0aW5ndWlzaCBhIHVh Y2Nlc3MgZnJvbSBhbm90aGVyIGFjY2Vzcy4KPiAKPiBPSyx1c2luZyBFWF9UWVBFX1VBQ0NFU1Mg YW5kIHRoaXMgZXh0YWJsZSB0eXBlIGNvdWxkIGJlIHJlY292ZXIsIHRoaXMgaXMKPiBtb3JlIHJl YXNvbmFibGUuCgpHcmVhdC4KCj4gRm9yIEVYX1RZUEVfVUFDQ0VTU19FUlJfWkVSTywgdG9kYXkg d2UgdXNlIGl0IGZvciBrZXJuZWwgYWNjZXNzZXMgaW4gYQo+IGNvdXBsZSBvZiBjYXNlcywgc3Vj aCBhcwo+IGdldF91c2VyL2Z1dGV4L19fdXNlcl9jYWNoZV9tYWludCgpL19fdXNlcl9zd3BYX2Fz bSgpLCAKClRob3NlIGFyZSBhbGwgdXNlciBhY2Nlc3Nlcy4KCkhvd2V2ZXIsIF9fZ2V0X2tlcm5l bF9ub2ZhdWx0KCkgYW5kIF9fcHV0X2tlcm5lbF9ub2ZhdWx0KCkgdXNlCkVYX1RZUEVfVUFDQ0VT U19FUlJfWkVSTyBieSB3YXkgb2YgX197Z2V0LHB1dH1fbWVtX2FzbSgpLCBzbyB3ZSdkIG5lZWQg dG8KcmVmYWN0b3IgdGhhdCBjb2RlIHRvIHNwbGl0IHRoZSB1c2VyL2tlcm5lbCBjYXNlcyBoaWdo ZXIgdXAgdGhlIGNhbGxjaGFpbi4KCj4geW91ciBzdWdnZXN0aW9uIGlzOgo+IGdldF91c2VyIGNv bnRpbnVlcyB0byB1c2UgRVhfVFlQRV9VQUNDRVNTX0VSUl9aRVJPIGFuZCB0aGUgb3RoZXIgY2Fz ZXMgdXNlCj4gbmV3IHR5cGUgRVhfVFlQRV9GSVhVUF9FUlJfWkVSTz8KClllcywgdGhhdCdzIHRo ZSByb3VnaCBzaGFwZS4gV2UgY291bGQgbWFrZSB0aGUgbGF0dGVyIEVYX1RZUEVfS0FDQ0VTU19F UlJfWkVSTwp0byBiZSBjbGVhcmx5IGFuYWxvZ291cyB0byBFWF9UWVBFX1VBQ0NFU1NfRVJSX1pF Uk8sIGFuZCB3aXRoIHRoYXQgSSBzdXNlcGN0IHdlCmNvdWxkIHJlbW92ZSBFWF9UWVBFX0ZJWFVQ LgoKVGhhbmtzLApNYXJrLgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBs aXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlz dGluZm8vbGludXgtYXJtLWtlcm5lbAo=