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 0512ECCA481 for ; Thu, 30 Jun 2022 10:04:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Content-Type:References:In-Reply-To:Date:CC:To:From:Subject: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=aumqgaFWmzSmnTOjWSZZPUCCR5WLD62MZdp/i+2+Nvg=; b=QiIVvo3KNVRlS5spEK2ExDfHKW YKctx/JFlfGAtNARqBWAYPsKVJs9ZqFZCi1NX3yPy62dVRi2RRHwy+RnRveY6z+jrQriTBS7VE0wu DSfTqnFvPBbQhWJMdaDAwhqycHxy6mi9xHxM5LbPLSKtrhFU+RaLt9bwNIJVVw1RBE6FLrRAF+fpX 9uO3aF7fMrswD1lELAADjH8ncy/uFvbPrc301GVTl0Mc8XauFxAnNmHFzZ191WY9G4vyAComokjXC DLPauY1jOdQ0tArbJK8fTXyY+66kUZ3+HO/GNDKXmG+2uH0I+qcDjuMsrB7Xucwbq2/VADLE9amC6 i89IxkzQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o6r1r-00GR7y-Qq; Thu, 30 Jun 2022 10:04:07 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o6r1o-00GR2g-Fn; Thu, 30 Jun 2022 10:04:05 +0000 X-UUID: 4212045d467040a3a6298ce3f34dac98-20220630 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:MIME-Version:Content-Type:References:In-Reply-To:Date:CC:To:From:Subject:Message-ID; bh=aumqgaFWmzSmnTOjWSZZPUCCR5WLD62MZdp/i+2+Nvg=; b=kbMXo9WsIEDQNGJG458kLjiMlyPqNzAR5/yTHebzQbahW9gfw1ohNRMxxMxH/p59jao5rsPTDRGXeZQeGZHQBMDk8J13mDRxWI4XEzsYRJdifjyMDp7c0Z38dXND8PLb0qsSuchn3I3p+stzHw1Fsc4tSD/8jsDQdxEy7pBNods=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.7,REQID:f6406df5-bf1c-4196-bbf4-469c93ad16c6,OB:0,LO B:0,IP:0,URL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,ACTI ON:release,TS:0 X-CID-META: VersionHash:87442a2,CLOUDID:c6233186-57f0-47ca-ba27-fe8c57fbf305,C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,IP:nil,URL:0,File:nil ,QS:nil,BEC:nil,COL:0 X-UUID: 4212045d467040a3a6298ce3f34dac98-20220630 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 351428045; Thu, 30 Jun 2022 03:03:53 -0700 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Thu, 30 Jun 2022 17:33:18 +0800 Received: from mhfsdcap04 (10.17.3.154) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 30 Jun 2022 17:33:16 +0800 Message-ID: <63969062a55b1c520f276b9a4b5f79faa12da20b.camel@mediatek.com> Subject: Re: [PATCH v3 1/5] iommu: Return -EMEDIUMTYPE for incompatible domain and device/group From: Yong Wu To: Nicolin Chen CC: "Tian, Kevin" , Jason Gunthorpe , Baolu Lu , "linux-s390@vger.kernel.org" , "cohuck@redhat.com" , "jordan@cosmicpenguin.net" , "linux-tegra@vger.kernel.org" , "thierry.reding@gmail.com" , "will@kernel.org" , "alyssa@rosenzweig.io" , "jean-philippe@linaro.org" , "kvm@vger.kernel.org" , "zhang.lyra@gmail.com" , "iommu@lists.linux-foundation.org" , "jonathanh@nvidia.com" , "yangyingliang@huawei.com" , "orsonzhai@gmail.com" , "gerald.schaefer@linux.ibm.com" , "linux-arm-msm@vger.kernel.org" , "alex.williamson@redhat.com" , "christophe.jaillet@wanadoo.fr" , "matthias.bgg@gmail.com" , "tglx@linutronix.de" , "virtualization@lists.linux-foundation.org" , "linux-arm-kernel@lists.infradead.org" , "dwmw2@infradead.org" , "marcan@marcan.st" , "linux-kernel@vger.kernel.org" , "baolin.wang7@gmail.com" , "linux-mediatek@lists.infradead.org" , "robin.murphy@arm.com" Date: Thu, 30 Jun 2022 17:33:16 +0800 In-Reply-To: References: <20220623200029.26007-1-nicolinc@nvidia.com> <20220623200029.26007-2-nicolinc@nvidia.com> <270eec00-8aee-2288-4069-d604e6da2925@linux.intel.com> <8a5e9c81ab1487154828af3ca21e62e39bcce18c.camel@mediatek.com> <19cfb1b85a347c70c6b0937bbbca4a176a724454.camel@mediatek.com> <20220624181943.GV4147@nvidia.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.2 MIME-Version: 1.0 X-MTK: N Content-Transfer-Encoding: base64 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220630_030404_588129_97D5241D X-CRM114-Status: GOOD ( 21.55 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org T24gV2VkLCAyMDIyLTA2LTI5IGF0IDEyOjQ3IC0wNzAwLCBOaWNvbGluIENoZW4gd3JvdGU6DQo+ IE9uIEZyaSwgSnVuIDI0LCAyMDIyIGF0IDAzOjE5OjQzUE0gLTAzMDAsIEphc29uIEd1bnRob3Jw ZSB3cm90ZToNCj4gPiBPbiBGcmksIEp1biAyNCwgMjAyMiBhdCAwNjozNTo0OVBNICswODAwLCBZ b25nIFd1IHdyb3RlOg0KPiA+IA0KPiA+ID4gPiA+IEl0J3Mgbm90IHVzZWQgaW4gVkZJTyBjb250 ZXh0LiAicmV0dXJuIDAiIGp1c3Qgc2F0aXNmeSB0aGUNCj4gPiA+ID4gPiBpb21tdQ0KPiA+ID4g PiA+IGZyYW1ld29yayB0byBnbyBhaGVhZC4gYW5kIHllcywgaGVyZSB3ZSBvbmx5IGFsbG93IHRo ZSBzaGFyZWQNCj4gPiA+ID4gPiAibWFwcGluZy1kb21haW4iIChBbGwgdGhlIGRldmljZXMgc2hh cmUgYSBkb21haW4gY3JlYXRlZA0KPiA+ID4gPiA+IGludGVybmFsbHkpLg0KPiA+IA0KPiA+IFdo YXQgcGFydCBvZiB0aGUgaW9tbXUgZnJhbWV3b3JrIGlzIHRyeWluZyB0byBhdHRhY2ggYSBkb21h aW4gYW5kDQo+ID4gd2FudHMgdG8gc2VlIHN1Y2Nlc3Mgd2hlbiB0aGUgZG9tYWluIHdhcyBub3Qg YWN0dWFsbHkgYXR0YWNoZWQgPw0KPiA+IA0KPiA+ID4gPiBXaGF0IHByZXZlbnQgdGhpcyBkcml2 ZXIgZnJvbSBiZWluZyB1c2VkIGluIFZGSU8gY29udGV4dD8NCj4gPiA+IA0KPiA+ID4gTm90aGlu ZyBwcmV2ZW50IHRoaXMuIEp1c3QgSSBkaWRuJ3QgdGVzdC4NCj4gPiANCj4gPiBUaGlzIGlzIHdo eSBpdCBpcyB3cm9uZyB0byByZXR1cm4gc3VjY2VzcyBoZXJlLg0KPiANCj4gSGkgWW9uZywgd291 bGQgeW91IG9yIHNvbWVvbmUgeW91IGtub3cgYmUgYWJsZSB0byBjb25maXJtIHdoZXRoZXINCj4g dGhpcyAicmV0dXJuIDAiIGlzIHN0aWxsIGEgbXVzdCBvciBub3Q/DQo+IA0KPiBDb25zaWRlcmlu ZyB0aGF0IGl0J3MgYW4gb2xkIDMyLWJpdCBwbGF0Zm9ybSBmb3IgTVRLLCBpZiBpdCB3b3VsZA0K PiB0YWtlIHRpbWUgdG8gZG8gc28sIEknZCBsaWtlIHRvIGRyb3AgdGhlIGNoYW5nZSBpbiBNVEsg ZHJpdmVyIGFuZA0KPiBub3RlIGluIGNvbW1pdCBsb2cgZm9yIHlvdSBvciBvdGhlciBNVEsgZm9s a3MgdG8gY2hhbmdlIGluIGZ1dHVyZS4NCg0KWWVzLiBQbGVhc2UgaGVscCBkcm9wIHRoZSBjaGFu Z2UgaW4gdGhpcyBmaWxlLg0KDQpTb3JyeSBJIGRvbid0IGhhdmUgdGhlIGJvYXJkIGF0IGhhbmQg cmlnaHQgbm93IGFuZCBJIGNvdWxkIG5vdCBsaXN0IHRoZQ0KYmFja3RyYWNlIHdoZXJlIHRoaXMg aXMgbmVlZGVkKHNob3VsZCBiZSBidXNfaW9tbXVfcHJvYmUgZnJvbSB0aGUNCnByZXZpb3VzIGRl YnVnLi4uKQ0KDQo+IA0KPiBUaGFua3MNCj4gTmljDQo=