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=-5.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 B4D4AC3A589 for ; Thu, 15 Aug 2019 12:55:08 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 8BA23206C1 for ; Thu, 15 Aug 2019 12:55:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8BA23206C1 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hyFHK-0005uR-2a; Thu, 15 Aug 2019 12:54:54 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hyFHI-0005uM-HG for xen-devel@lists.xenproject.org; Thu, 15 Aug 2019 12:54:52 +0000 X-Inumbo-ID: dd9c3bb2-bf5b-11e9-8524-bc764e2007e4 Received: from foss.arm.com (unknown [217.140.110.172]) by us1-rack-iad1.inumbo.com (Halon) with ESMTP id dd9c3bb2-bf5b-11e9-8524-bc764e2007e4; Thu, 15 Aug 2019 12:54:49 +0000 (UTC) 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 E245A344; Thu, 15 Aug 2019 05:54:48 -0700 (PDT) Received: from [10.1.196.50] (e108454-lin.cambridge.arm.com [10.1.196.50]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 5673B3F694; Thu, 15 Aug 2019 05:54:48 -0700 (PDT) From: Julien Grall To: Stefano Stabellini References: <1564763985-20312-1-git-send-email-olekstysh@gmail.com> <1564763985-20312-3-git-send-email-olekstysh@gmail.com> <3c6d54f2-06ad-6bd1-447b-0e4cbef3d391@arm.com> <8626bea6-cec3-128a-3b7a-b4c1542a659a@gmail.com> <7101e744-784b-9b89-3a90-e748ff03a02d@arm.com> <6119cff5-b39a-3782-18d9-f6e51c57ac37@gmail.com> <74e0b656-a6a1-d0c6-3cb2-e32d552d42c8@arm.com> Message-ID: <44ba5fba-48c3-f352-510c-fc0d8ada181a@arm.com> Date: Thu, 15 Aug 2019 13:54:47 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Subject: Re: [Xen-devel] [PATCH V2 2/6] iommu/arm: Add ability to handle deferred probing request X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Oleksandr , xen-devel@lists.xenproject.org, Oleksandr Tyshchenko Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" SGksCgpPbiAxNS8wOC8yMDE5IDEwOjI5LCBKdWxpZW4gR3JhbGwgd3JvdGU6Cj4gT24gMTQvMDgv MjAxOSAyMDoyNSwgU3RlZmFubyBTdGFiZWxsaW5pIHdyb3RlOgo+PiBPbiBXZWQsIDE0IEF1ZyAy MDE5LCBKdWxpZW4gR3JhbGwgd3JvdGU6Cj4+IEkgYWdyZWUgdGhhdCB3ZSBzaG91bGQgZW5hYmxl IGFsbCBJT01NVXMgb3Igbm9uZS4gSSBkb24ndCB0aGluayB3ZSB3YW50Cj4+IHRvIGRlYWwgd2l0 aCBwYXJ0aWFsbHkgaW5pdGlhbGl6ZWQgSU9NTVVzIHN5c3RlbXMuCj4+Cj4+IEZhaWx1cmUgdG8g ZW5hYmxlIGFsbCBJT01NVXMgc2hvdWxkIGxlYWQgdG8gcmV0dXJuaW5nIGFuIGVycm9yIGZyb20g dGhlCj4+IHJlbGV2YW50IGZ1bmN0aW9uIChhcmNoX2lvbW11X3BvcHVsYXRlX3BhZ2VfdGFibGU/ KSB3aGljaCBzaG91bGQKPiAKPiBUaGUgcGF0Y2ggaXM6Cj4gCj4gfD4gc3RhcnRfeGVuKCkKPiB8 PsKgwqAgaW9tbXVfc2V0dXAoKQo+IHw+wqDCoMKgwqAgaW9tbXVfaGFyZHdhcmVfc2V0dXAoKQo+ IAo+PiB0cmFuc2xhdGUgaW50byBYZW4gZmFpbGluZyB0byBib290IGFuZCBjcmFzaGluZy4gV2hp Y2ggSSB0aGluayBpdCBpcwo+PiB3aGF0IHlvdSBhcmUgc3VnZ2VzdGluZywgcmlnaHQ/Cj4gCj4g VGhhdCdzIGNvcnJlY3QuIEF0IHRoZSBtb21lbnQgdGhlIHJldHVybiB2YWx1ZSBvZiBpb21tdV9z ZXR1cCgpIGlzIGlnbm9yZWQuIFdoYXQgCj4gSSB3b3VsZCBsaWtlIHRvIHN1Z2dlc3QgaXMgc29t ZXRoaW5nIGFsb25nIHRoZSBmb2xsb3dpbmcgbGluZXM6Cj4gCj4gcmMgPSBpb21tdV9zZXR1cCgp Owo+IGlmICggaW9tbXVfZW5hYmxlICYmIHJjICE9IC1FTk9ERVYgKQo+ICDCoCBwYW5pYygiVW5h YmxlIHRvIHNldHVwIElPTU1VcyIpOwo+IAo+Pgo+PiAoSSB3b3VsZG4ndCBjYWxsIHBhbmljKCkg aW5zaWRlIHRoZSBJT01NVSBzcGVjaWZpYyBpbml0aWFsaXplciwgYmVjYXVzZQo+PiB0aGVyZSBt aWdodCBiZSBpb21tdT0gY29tbWFuZCBsaW5lIG9wdGlvbnMgZm9yIFhlbiB0aGF0IHNwZWNpZnkg YQo+PiBkaWZmZXJlbnQgZGVzaXJlZCBvdXRjb21lLiBJIHdvdWxkIGRlYWwgd2l0aCB0aGlzIGNh c2UgdGhlIHNhbWUgd2F5IHdlCj4+IHdvdWxkIGRlYWwgd2l0aCBhbiBlcnJvciBkdXJpbmcgaW5p dGlhbGl6YXRpb24gb2YgYSBzaW5nbGUgSU9NTVUuKQo+IAo+IEkgYW0gbm90IHN1cmUgdG8gdW5k ZXJzdGFuZCB0aGlzLiBJZiB5b3UgaGF2ZSBhbiBoYWxmIGluaXRpYWxpemVkIElPTU1VIChub3Rl IAo+IHRoZSAic2luZ2xlIiBoZXJlISksIHRoZW4gY29udGludWluZyBpcyBsaWtlbHkgdG8gbWFr ZSB0aGluZ3MgbXVjaCB3b3JzdC4KPiAKPiBJIGRvbid0IGFkdm9jYXRlIHRvIHB1dCB0aGUgcGFu aWMoKSBpbnNpZGUgdGhlIElPTU1VIHNwZWNpZmljIGluaXRpYWxpemVyIChzZWUgCj4gYWJvdmUp LiBCdXQgY2xlYXJseSwgd2Ugc2hvdWxkIHJldHVybiBhbiBlcnJvciBubyBtYXR0ZXIgdGhlIGNv bnRlbnQgb2YgJ2lvbW11JyAKPiBjb21tYW5kIGxpbmUgaWYgdGhlIHVzZXIgcmVxdWVzdGVkIHRv IGVuYWJsZSB0aGUgSU9NTVVzIChpZiBhbnkpLiBJdCB3b3VsZG4ndCBiZSAKPiByaWdodCBpZiB0 aGUgdXNlciBjYW4gc2F5ICJpZ25vcmUgSU9NTVUgZXJyb3IiIGFzIG1vc3QgbGlrZWx5IHlvdSB3 aWxsIGhhdmUgCj4gdW5leHBlY3RlZCBlcnJvciBhZnRlcndhcmRzLgoKSSBub3RpY2VkIHRoZXJl IHdhcyBhbHJlYWR5IGEgcGFuaWMoKSBpbiBpb21tdV9zZXR1cCgpIGp1c3QgaW4gY2FzZSB0aGUg dXNlcgpmb3JjZSB0aGUgdXNlIG9mIElPTU1VIGJ1dCB0aGV5IHdlcmUgbm90IGluaXRpYWxpemVk LiBJIHdhcyBoYWxmLXRlbXB0ZWQgdG8gc2V0CmlvbW11X2ZvcmNlIHRvIHRydWUgZm9yIEFybSwg YnV0IEkgdGhpbmsgdGhpcyBpcyBhIGRpZmZlcmVudCBpc3N1ZS4KClNvIGhlcmUgbXkgdGFrZSAo bm90IHRlc3RlZCBub3IgY29tcGlsZWQpLgoKZGlmZiAtLWdpdCBhL3hlbi9hcmNoL2FybS9zZXR1 cC5jIGIveGVuL2FyY2gvYXJtL3NldHVwLmMKaW5kZXggMmM1ZDEzNzJjMC4uOGY5NGY2MThiMCAx MDA2NDQKLS0tIGEveGVuL2FyY2gvYXJtL3NldHVwLmMKKysrIGIveGVuL2FyY2gvYXJtL3NldHVw LmMKQEAgLTc1NSw2ICs3NTUsNyBAQCB2b2lkIF9faW5pdCBzdGFydF94ZW4odW5zaWduZWQgbG9u ZyBib290X3BoeXNfb2Zmc2V0LAogICAgICAgICAubWF4X2dyYW50X2ZyYW1lcyA9IGdudHRhYl9k b20wX2ZyYW1lcygpLAogICAgICAgICAubWF4X21hcHRyYWNrX2ZyYW1lcyA9IG9wdF9tYXhfbWFw dHJhY2tfZnJhbWVzLAogICAgIH07CisgICAgaW50IHJjOwogCiAgICAgZGNhY2hlX2xpbmVfYnl0 ZXMgPSByZWFkX2RjYWNoZV9saW5lX2J5dGVzKCk7CiAKQEAgLTg5MCw3ICs4OTEsOSBAQCB2b2lk IF9faW5pdCBzdGFydF94ZW4odW5zaWduZWQgbG9uZyBib290X3BoeXNfb2Zmc2V0LAogCiAgICAg c2V0dXBfdmlydF9wYWdpbmcoKTsKIAotICAgIGlvbW11X3NldHVwKCk7CisgICAgcmMgPSBpb21t dV9zZXR1cCgpOworICAgIGlmICggIWlvbW11X2VuYWJsZWQgJiYgcmMgIT0gLUVOT0RFViApCisg ICAgICAgIHBhbmljKCJDb3VsZG4ndCBjb25maWd1cmUgY29ycmVjdGx5IGFsbCB0aGUgSU9NTVVz LiIpOwogCiAgICAgZG9faW5pdGNhbGxzKCk7CiAKZGlmZiAtLWdpdCBhL3hlbi9kcml2ZXJzL3Bh c3N0aHJvdWdoL2FybS9pb21tdS5jIGIveGVuL2RyaXZlcnMvcGFzc3Rocm91Z2gvYXJtL2lvbW11 LmMKaW5kZXggMjEzNTIzMzczNi4uZjIxOWRlOWFjMyAxMDA2NDQKLS0tIGEveGVuL2RyaXZlcnMv cGFzc3Rocm91Z2gvYXJtL2lvbW11LmMKKysrIGIveGVuL2RyaXZlcnMvcGFzc3Rocm91Z2gvYXJt L2lvbW11LmMKQEAgLTUxLDYgKzUxLDE0IEBAIGludCBfX2luaXQgaW9tbXVfaGFyZHdhcmVfc2V0 dXAodm9pZCkKICAgICAgICAgcmMgPSBkZXZpY2VfaW5pdChucCwgREVWSUNFX0lPTU1VLCBOVUxM KTsKICAgICAgICAgaWYgKCAhcmMgKQogICAgICAgICAgICAgbnVtX2lvbW11cysrOworICAgICAg ICAvKgorICAgICAgICAgKiBJZ25vcmUgdGhlIGZvbGxvd2luZyBlcnJvciBjb2RlczoKKyAgICAg ICAgICogICAtIEVCQURGOiBJbmRpY2F0ZSB0aGUgY3VycmVudCBub3QgaXMgbm90IGFuIElPTU1V CisgICAgICAgICAqICAgLSBFTk9ERVY6IFRoZSBJT01NVSBpcyBub3QgcHJlc2VudCBvciBjYW5u b3QgYmUgdXNlZCBieQorICAgICAgICAgKiAgICAgWGVuLgorICAgICAgICAgKi8KKyAgICAgICAg ZWxzZSBpZiAoIHJjICE9IC1FQkFERiAmJiByYyAhPSAtRU5PREVWICkKKyAgICAgICAgICAgIHJl dHVybiByYzsKICAgICB9CiAKICAgICByZXR1cm4gKCBudW1faW9tbXVzID4gMCApID8gMCA6IC1F Tk9ERVY7CgoKCgo+IAo+IENoZWVycywKPiAKCi0tIApKdWxpZW4gR3JhbGwKCl9fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxp c3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVj dC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2ZWw=