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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A9EEAC7EE26 for ; Mon, 22 May 2023 08:37:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232359AbjEVIhS (ORCPT ); Mon, 22 May 2023 04:37:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33428 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232229AbjEVIhP (ORCPT ); Mon, 22 May 2023 04:37:15 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 53D10BB for ; Mon, 22 May 2023 01:37:12 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 16A8621972; Mon, 22 May 2023 08:37:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1684744630; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=8ga5Zo8jqgo2Pq5tah2wZHCDCAl0WaiL8Zh0l8OnPpQ=; b=XtmMC6KGID7aLqQib45KPdLWlpll/Q7yy8XjVtDHEyg/w+IGN6zQsEw6yZj5sMUqzrozb7 h8m+RBA1Hkf+x20fuf254GrTKCkUBksQdHvINgYp6+moEjtdKNsLqbmjnla407bw2Zaf8I yT72i5TTiaJxVLCVoumxC5JJe2HZjbs= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 91E1913776; Mon, 22 May 2023 08:37:09 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id HVzUIbUpa2QeWwAAMHmgww (envelope-from ); Mon, 22 May 2023 08:37:09 +0000 Message-ID: Date: Mon, 22 May 2023 10:37:09 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.1 Subject: Re: [PATCH 2/4] x86: always initialize xen-swiotlb when xen-pcifront is enabling Content-Language: en-US To: =?UTF-8?Q?Marek_Marczykowski-G=c3=b3recki?= , Christoph Hellwig Cc: Stefano Stabellini , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Ben Skeggs , Karol Herbst , Lyude Paul , xen-devel@lists.xenproject.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, nouveau@lists.freedesktop.org References: <20230518134253.909623-1-hch@lst.de> <20230518134253.909623-3-hch@lst.de> <20230519040405.GA10818@lst.de> From: Juergen Gross In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------yxQ05rE4I03r9lxlh0bCXS2U" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------yxQ05rE4I03r9lxlh0bCXS2U Content-Type: multipart/mixed; boundary="------------lebpN3m0ix011maVFGvYhzJB"; protected-headers="v1" From: Juergen Gross To: =?UTF-8?Q?Marek_Marczykowski-G=c3=b3recki?= , Christoph Hellwig Cc: Stefano Stabellini , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Ben Skeggs , Karol Herbst , Lyude Paul , xen-devel@lists.xenproject.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, nouveau@lists.freedesktop.org Message-ID: Subject: Re: [PATCH 2/4] x86: always initialize xen-swiotlb when xen-pcifront is enabling References: <20230518134253.909623-1-hch@lst.de> <20230518134253.909623-3-hch@lst.de> <20230519040405.GA10818@lst.de> In-Reply-To: --------------lebpN3m0ix011maVFGvYhzJB Content-Type: multipart/mixed; boundary="------------mgbNAlWVI77vXQcN1yCpbTLa" --------------mgbNAlWVI77vXQcN1yCpbTLa Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 T24gMTkuMDUuMjMgMTI6MTAsIE1hcmVrIE1hcmN6eWtvd3NraS1Hw7NyZWNraSB3cm90ZToN Cj4gT24gRnJpLCBNYXkgMTksIDIwMjMgYXQgMDY6MDQ6MDVBTSArMDIwMCwgQ2hyaXN0b3Bo IEhlbGx3aWcgd3JvdGU6DQo+PiBPbiBUaHUsIE1heSAxOCwgMjAyMyBhdCAwODoxODozOVBN ICswMjAwLCBNYXJlayBNYXJjenlrb3dza2ktR8OzcmVja2kgd3JvdGU6DQo+Pj4gT24gVGh1 LCBNYXkgMTgsIDIwMjMgYXQgMDM6NDI6NTFQTSArMDIwMCwgQ2hyaXN0b3BoIEhlbGx3aWcg d3JvdGU6DQo+Pj4+IFJlbW92ZSB0aGUgZGFuZ2Vyb3VzIGxhdGUgaW5pdGlhbGl6YXRpb24g b2YgeGVuLXN3aW90bGIgaW4NCj4+Pj4gcGNpX3hlbl9zd2lvdGxiX2luaXRfbGF0ZSBhbmQg aW5zdGVhZCBqdXN0IGFsd2F5cyBpbml0aWFsaXplDQo+Pj4+IHhlbi1zd2lvdGxiIGluIHRo ZSBib290IGNvZGUgaWYgQ09ORklHX1hFTl9QQ0lERVZfRlJPTlRFTkQgaXMgZW5hYmxlZC4N Cj4+Pj4NCj4+Pj4gU2lnbmVkLW9mZi1ieTogQ2hyaXN0b3BoIEhlbGx3aWcgPGhjaEBsc3Qu ZGU+DQo+Pj4NCj4+PiBEb2Vzbid0IGl0IG1lYW4gYWxsIHRoZSBQViBndWVzdHMgd2lsbCBi YXNpY2FsbHkgd2FzdGUgNjRNQiBvZiBSQU0NCj4+PiBieSBkZWZhdWx0IGVhY2ggaWYgdGhl eSBkb24ndCByZWFsbHkgaGF2ZSBQQ0kgZGV2aWNlcz8NCj4+DQo+PiBJZiBDT05GSUdfWEVO X1BDSURFVl9GUk9OVEVORCBpcyBlbmFibGVkLCBhbmQgdGhlIGtlcm5lbCdzIGlzbid0IGJv b3RlZA0KPj4gd2l0aCBzd2lvdGxiPW5vZm9yY2UsIHllcy4NCj4gDQo+IFRoYXQncyAiYSBi aXQiIHVuZm9ydHVuYXRlLCBzaW5jZSB0aGF0IG1pZ2h0IGJlIHNpZ25pZmljYW50IHBhcnQg b2YgdGhlDQo+IFZNIG1lbW9yeSwgb3IgaWYgeW91IGhhdmUgYSBsb3Qgb2YgVk1zLCBhIHNp Z25pZmljYW50IHBhcnQgb2YgdGhlIGhvc3QNCj4gbWVtb3J5IC0gaXQgcXVpY2tseSBhZGRz IHVwLg0KPiBXaGlsZSBJIHdvdWxkIHNheSBQQ0kgcGFzc3Rocm91Z2ggaXMgbm90IHZlcnkg Y29tbW9uIGZvciBQViBndWVzdHMsIGNhbg0KPiB0aGUgZGVjaXNpb24gYWJvdXQgeGVuLXN3 aW90bGIgYmUgZGVsYXllZCB1bnRpbCB5b3UgY2FuIGVudW1lcmF0ZQ0KPiB4ZW5zdG9yZSB0 byBjaGVjayBpZiB0aGVyZSBhcmUgYW55IFBDSSBkZXZpY2VzIGNvbm5lY3RlZCAoYW5kIG5v dA0KPiBhbGxvY2F0ZSB4ZW4tc3dpb3RsYiBieSBkZWZhdWx0IGlmIHRoZXJlIGFyZSBub25l KT8gVGhpcyB3b3VsZA0KPiBzdGlsbCBub3QgY292ZXIgdGhlIGhvdHBsdWcgY2FzZSAoaW4g d2hpY2ggY2FzZSwgeW91J2QgbmVlZCB0byBmb3JjZSBpdA0KPiB3aXRoIGEgY21kbGluZSks IGJ1dCBhdCBsZWFzdCB5b3Ugd291bGRuJ3QgbG9vc2UgbXVjaCBtZW1vcnkganVzdA0KPiBi ZWNhdXNlIG9uZSBvZiB5b3VyIFZNcyBtYXkgdXNlIFBDSSBwYXNzdGhyb3VnaCAoc28sIHlv dSBoYXZlIGl0IGVuYWJsZWQNCj4gaW4geW91ciBrZXJuZWwpLg0KPiBQbGVhc2UgcmVtZW1i ZXIgdGhhdCBndWVzdCBrZXJuZWwgaXMgbm90IGFsd2F5cyB1bmRlciBmdWxsIGNvbnRyb2wg b2YNCj4gdGhlIGhvc3QgYWRtaW4sIHNvIG1ha2luZyBndWVzdHMgbG9vc2UgNjRNQiBvZiBS QU0gYWx3YXlzLCBpbiBkZWZhdWx0DQo+IHNldHVwIGlzbid0IGdvb2QgZm9yIGN1c3RvbWVy cyBvZiBzdWNoIFZNcy4uLg0KPiANCg0KSW4gbm9ybWFsIGNhc2VzIFBDSSBwYXNzdGhyb3Vn aCBpbiBQViBndWVzdHMgcmVxdWlyZXMgdG8gc3RhcnQgdGhlIGd1ZXN0DQp3aXRoIGU4MjBf aG9zdD0xLiBTbyBpdCBzaG91bGQgYmUgcmF0aGVyIGVhc3kgdG8gbGltaXQgYWxsb2NhdGlu ZyB0aGUNCjY0TUIgaW4gUFYgZ3Vlc3RzIHRvIHRoZSBjYXNlcyB3aGVyZSB0aGUgbWVtb3J5 IG1hcCBoYXMgbm9uLVJBTSByZWdpb25zDQplc3BlY2lhbGx5IGluIHRoZSBmaXJzdCAxTUIg b2YgdGhlIG1lbW9yeS4NCg0KVGhpcyB3aWxsIGNvdmVyIGV2ZW4gaG90cGx1ZyBjYXNlcy4g VGhlIG9ubHkgY2FzZSBub3QgY292ZXJlZCB3b3VsZCBiZSBhDQpndWVzdCBzdGFydGVkIHdp dGggZTgyMF9ob3N0PTEgZXZlbiBpZiBubyBQQ0kgcGFzc3Rocm91Z2ggd2FzIHBsYW5uZWQu DQpCdXQgdGhpcyBzaG91bGQgYmUgcmF0aGVyIHJhcmUgKGF0IGxlYXN0IEkgaG9wZSBzbyku DQoNCg0KSnVlcmdlbg0K --------------mgbNAlWVI77vXQcN1yCpbTLa Content-Type: application/pgp-keys; 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