From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH v3 13/15] x86/IRQ: tighten vector checks Date: Mon, 20 May 2019 09:26:37 -0600 Message-ID: <5CE2C72D0200007800230AD1@prv1-mh.provo.novell.com> References: <5CC6DD090200007800229E80@prv1-mh.provo.novell.com> <5CDE8F5B020000780023005F@prv1-mh.provo.novell.com> <5CDE927002000078002300BA@prv1-mh.provo.novell.com> <20190520140449.5ihqctltaeiegqiz@Air-de-Roger> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hSkBZ-0004tS-3g for xen-devel@lists.xenproject.org; Mon, 20 May 2019 15:26:45 +0000 In-Reply-To: <20190520140449.5ihqctltaeiegqiz@Air-de-Roger> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Roger Pau Monne Cc: Andrew Cooper , Wei Liu , xen-devel List-Id: xen-devel@lists.xenproject.org Pj4+IE9uIDIwLjA1LjE5IGF0IDE2OjA0LCA8cm9nZXIucGF1QGNpdHJpeC5jb20+IHdyb3RlOgo+ IE9uIEZyaSwgTWF5IDE3LCAyMDE5IGF0IDA0OjUyOjMyQU0gLTA2MDAsIEphbiBCZXVsaWNoIHdy b3RlOgo+PiBVc2UgdmFsaWRfaXJxX3ZlY3RvcigpIHJhdGhlciB0aGFuICI+IDAiLgo+PiAKPj4g QWxzbyByZXBsYWNlIGFuIG9wZW4tY29kZWQgdXNlIG9mIElSUV9WRUNUT1JfVU5BU1NJR05FRC4K Pj4gCj4+IFNpZ25lZC1vZmYtYnk6IEphbiBCZXVsaWNoIDxqYmV1bGljaEBzdXNlLmNvbT4KPiAK PiBSZXZpZXdlZC1ieTogUm9nZXIgUGF1IE1vbm7DqSA8cm9nZXIucGF1QGNpdHJpeC5jb20+CgpU aGFua3MuCgo+IFRoZSBxdWVzdGlvbiBJIGhhdmUgYmVsb3cgaXMgbm90IGRpcmVjdGx5IHJlbGF0 ZWQgdG8gdGhlIHVzYWdlIG9mCj4gdmFsaWRfaXJxX3ZlY3RvciwgYnV0IHJhdGhlciB3aXRoIHRo ZSBleGlzdGluZyBjb2RlLgo+IAo+PiBAQCAtNDUyLDE1ICs0NTIsMTggQEAgc3RhdGljIHZtYXNr X3QgKmlycV9nZXRfdXNlZF92ZWN0b3JfbWFzawo+PiAgICAgICAgICAgICAgaW50IHZlY3RvcjsK Pj4gICAgICAgICAgICAgIAo+PiAgICAgICAgICAgICAgdmVjdG9yID0gaXJxX3RvX3ZlY3Rvcihp cnEpOwo+PiAtICAgICAgICAgICAgaWYgKCB2ZWN0b3IgPiAwICkKPj4gKyAgICAgICAgICAgIGlm ICggdmFsaWRfaXJxX3ZlY3Rvcih2ZWN0b3IpICkKPj4gICAgICAgICAgICAgIHsKPj4gLSAgICAg ICAgICAgICAgICBwcmludGsoWEVOTE9HX0lORk8gIklSUSAlZCBhbHJlYWR5IGFzc2lnbmVkIHZl Y3RvciAlZFxuIiwKPj4gKyAgICAgICAgICAgICAgICBwcmludGsoWEVOTE9HX0lORk8gIklSUSVk IGFscmVhZHkgYXNzaWduZWQgdmVjdG9yICUwMnhcbiIsCj4+ICAgICAgICAgICAgICAgICAgICAg ICAgIGlycSwgdmVjdG9yKTsKPj4gICAgICAgICAgICAgICAgICAKPj4gICAgICAgICAgICAgICAg ICBBU1NFUlQoIXRlc3RfYml0KHZlY3RvciwgcmV0KSk7Cj4+ICAKPj4gICAgICAgICAgICAgICAg ICBzZXRfYml0KHZlY3RvciwgcmV0KTsKPj4gICAgICAgICAgICAgIH0KPj4gKyAgICAgICAgICAg IGVsc2UgaWYgKCB2ZWN0b3IgIT0gSVJRX1ZFQ1RPUl9VTkFTU0lHTkVEICkKPj4gKyAgICAgICAg ICAgICAgICBwcmludGsoWEVOTE9HX1dBUk5JTkcgIklSUSVkIG1hcHBlZCB0byBib2d1cyB2ZWN0 b3IgJTAyeFxuIiwKPj4gKyAgICAgICAgICAgICAgICAgICAgICAgaXJxLCB2ZWN0b3IpOwo+IAo+ IE1heWJlIGFkZCBhbiBhc3NlcnRfdW5yZWFjaGFibGUgaGVyZT8gSXQgc2VlbXMgcmVhbGx5IGJv Z3VzIHRvIGNhbGwKPiBpcnFfZ2V0X3VzZWRfdmVjdG9yX21hc2sgd2l0aCBhbiB1bmFzc2lnbmVk IHZlY3Rvci4KCkhvdyB0aGF0PyBUaGlzIHdvdWxkIGUuZy4gZ2V0IGNhbGxlZCB0aGUgdmVyeSBm aXJzdCB0aW1lIGEgdmVjdG9yCmlzIHRvIGJlIGFzc2lnbmVkLiBCdXQgSSdtIGFmcmFpZCBJJ20g YSBsaXR0bGUgY29uZnVzZWQgYW55d2F5IGJ5CnRoZSB3b3JkaW5nIHlvdSB1c2UgLSBhZnRlciBh bGwgdGhpcyBpcyB0aGUgY29kZSBwYXRoIGRlYWxpbmcgd2l0aAphbiBJUlEgX25vdF8gYmVpbmcg bWFya2VkIGFzIGhhdmluZyBubyB2ZWN0b3IgYXNzaWduZWQsIGJ1dAphbHNvIG5vdCBoYXZpbmcg YSB2YWxpZCB2ZWN0b3IuCgo+IEJ1dCBJJ20gbm90IHN1cmUgSSBmdWxseSB1bmRlcnN0YW5kIHRo aXMgcGllY2Ugb2YgY29kZSwgbmVpdGhlciB3aHkgYQo+IHZlY3RvciB3aXRob3V0IGEgSVJRIGFz c2lnbmVkIGNhbiBoYXZlIGEgdmVjdG9yIGFzc2lnbmVkLiBJcyB0aGlzCj4gY292ZXJpbmcgdXAg Zm9yIHRoZSBsYWNrIG9mIGNsZWFudXAgZWxzZXdoZXJlPwoKSSBkb24ndCB0aGluayBzbywgbm8u IEhvd2V2ZXIsIHVzZXJzIG9mIGlycV90b192ZWN0b3IoKSBuZWVkIHRvCmJlIGNhcmVmdWw6IFRo ZSBmdW5jdGlvbiBjYW4gbGVnaXRpbWF0ZWx5IHJldHVybiAwIChiZXNpZGVzCklSUV9WRUNUT1Jf VU5BU1NJR05FRCkgYXMgYW4gZXJyb3IgaW5kaWNhdGlvbi4gSSd2ZSB0cmllZCB0bwpkbyBhd2F5 IHdpdGggdGhpcywgYnV0IHF1aWNrbHkgcmVhbGl6ZWQgSSdkIGJldHRlciBub3QgZG8gc28uIEkn dmUKbm90IHNlZW4gdGhlIHByaW50aygpIHRyaWdnZXIsIGJ1dCBJJ2QgcmF0aGVyIHNlZSB0aGUg cHJpbnRrKCkgbG9nCmEgbWVzc2FnZSB0ZWxsaW5nIHVzIHRoYXQgd2UgYWxzbyBuZWVkIHRvIGV4 Y2x1ZGUgdmVjdG9yIDAgdGhhbgphIHdyb25nIGFzc2VydGlvbiB0byBmaXJlLgoKSmFuCgoKX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1h aWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54 ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA== 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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 B7B94C04AAC for ; 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Mon, 20 May 2019 15:26:43 +0000 (UTC) Received: from INET-PRV1-MTA by prv1-mh.provo.novell.com with Novell_GroupWise; Mon, 20 May 2019 09:26:43 -0600 Message-Id: <5CE2C72D0200007800230AD1@prv1-mh.provo.novell.com> X-Mailer: Novell GroupWise Internet Agent 18.1.0 Date: Mon, 20 May 2019 09:26:37 -0600 From: "Jan Beulich" To: "Roger Pau Monne" References: <5CC6DD090200007800229E80@prv1-mh.provo.novell.com> <5CDE8F5B020000780023005F@prv1-mh.provo.novell.com> <5CDE927002000078002300BA@prv1-mh.provo.novell.com> <20190520140449.5ihqctltaeiegqiz@Air-de-Roger> In-Reply-To: <20190520140449.5ihqctltaeiegqiz@Air-de-Roger> Mime-Version: 1.0 Content-Disposition: inline Subject: Re: [Xen-devel] [PATCH v3 13/15] x86/IRQ: tighten vector checks 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: Andrew Cooper , Wei Liu , xen-devel Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Message-ID: <20190520152637.E9dBy85hoDko4JG9FFbdjdHgfWFM_GaJ6b2lfl5zYRQ@z> Pj4+IE9uIDIwLjA1LjE5IGF0IDE2OjA0LCA8cm9nZXIucGF1QGNpdHJpeC5jb20+IHdyb3RlOgo+ IE9uIEZyaSwgTWF5IDE3LCAyMDE5IGF0IDA0OjUyOjMyQU0gLTA2MDAsIEphbiBCZXVsaWNoIHdy b3RlOgo+PiBVc2UgdmFsaWRfaXJxX3ZlY3RvcigpIHJhdGhlciB0aGFuICI+IDAiLgo+PiAKPj4g QWxzbyByZXBsYWNlIGFuIG9wZW4tY29kZWQgdXNlIG9mIElSUV9WRUNUT1JfVU5BU1NJR05FRC4K Pj4gCj4+IFNpZ25lZC1vZmYtYnk6IEphbiBCZXVsaWNoIDxqYmV1bGljaEBzdXNlLmNvbT4KPiAK PiBSZXZpZXdlZC1ieTogUm9nZXIgUGF1IE1vbm7DqSA8cm9nZXIucGF1QGNpdHJpeC5jb20+CgpU aGFua3MuCgo+IFRoZSBxdWVzdGlvbiBJIGhhdmUgYmVsb3cgaXMgbm90IGRpcmVjdGx5IHJlbGF0 ZWQgdG8gdGhlIHVzYWdlIG9mCj4gdmFsaWRfaXJxX3ZlY3RvciwgYnV0IHJhdGhlciB3aXRoIHRo ZSBleGlzdGluZyBjb2RlLgo+IAo+PiBAQCAtNDUyLDE1ICs0NTIsMTggQEAgc3RhdGljIHZtYXNr X3QgKmlycV9nZXRfdXNlZF92ZWN0b3JfbWFzawo+PiAgICAgICAgICAgICAgaW50IHZlY3RvcjsK Pj4gICAgICAgICAgICAgIAo+PiAgICAgICAgICAgICAgdmVjdG9yID0gaXJxX3RvX3ZlY3Rvcihp cnEpOwo+PiAtICAgICAgICAgICAgaWYgKCB2ZWN0b3IgPiAwICkKPj4gKyAgICAgICAgICAgIGlm ICggdmFsaWRfaXJxX3ZlY3Rvcih2ZWN0b3IpICkKPj4gICAgICAgICAgICAgIHsKPj4gLSAgICAg ICAgICAgICAgICBwcmludGsoWEVOTE9HX0lORk8gIklSUSAlZCBhbHJlYWR5IGFzc2lnbmVkIHZl Y3RvciAlZFxuIiwKPj4gKyAgICAgICAgICAgICAgICBwcmludGsoWEVOTE9HX0lORk8gIklSUSVk IGFscmVhZHkgYXNzaWduZWQgdmVjdG9yICUwMnhcbiIsCj4+ICAgICAgICAgICAgICAgICAgICAg ICAgIGlycSwgdmVjdG9yKTsKPj4gICAgICAgICAgICAgICAgICAKPj4gICAgICAgICAgICAgICAg ICBBU1NFUlQoIXRlc3RfYml0KHZlY3RvciwgcmV0KSk7Cj4+ICAKPj4gICAgICAgICAgICAgICAg ICBzZXRfYml0KHZlY3RvciwgcmV0KTsKPj4gICAgICAgICAgICAgIH0KPj4gKyAgICAgICAgICAg IGVsc2UgaWYgKCB2ZWN0b3IgIT0gSVJRX1ZFQ1RPUl9VTkFTU0lHTkVEICkKPj4gKyAgICAgICAg ICAgICAgICBwcmludGsoWEVOTE9HX1dBUk5JTkcgIklSUSVkIG1hcHBlZCB0byBib2d1cyB2ZWN0 b3IgJTAyeFxuIiwKPj4gKyAgICAgICAgICAgICAgICAgICAgICAgaXJxLCB2ZWN0b3IpOwo+IAo+ IE1heWJlIGFkZCBhbiBhc3NlcnRfdW5yZWFjaGFibGUgaGVyZT8gSXQgc2VlbXMgcmVhbGx5IGJv Z3VzIHRvIGNhbGwKPiBpcnFfZ2V0X3VzZWRfdmVjdG9yX21hc2sgd2l0aCBhbiB1bmFzc2lnbmVk IHZlY3Rvci4KCkhvdyB0aGF0PyBUaGlzIHdvdWxkIGUuZy4gZ2V0IGNhbGxlZCB0aGUgdmVyeSBm aXJzdCB0aW1lIGEgdmVjdG9yCmlzIHRvIGJlIGFzc2lnbmVkLiBCdXQgSSdtIGFmcmFpZCBJJ20g YSBsaXR0bGUgY29uZnVzZWQgYW55d2F5IGJ5CnRoZSB3b3JkaW5nIHlvdSB1c2UgLSBhZnRlciBh bGwgdGhpcyBpcyB0aGUgY29kZSBwYXRoIGRlYWxpbmcgd2l0aAphbiBJUlEgX25vdF8gYmVpbmcg bWFya2VkIGFzIGhhdmluZyBubyB2ZWN0b3IgYXNzaWduZWQsIGJ1dAphbHNvIG5vdCBoYXZpbmcg YSB2YWxpZCB2ZWN0b3IuCgo+IEJ1dCBJJ20gbm90IHN1cmUgSSBmdWxseSB1bmRlcnN0YW5kIHRo aXMgcGllY2Ugb2YgY29kZSwgbmVpdGhlciB3aHkgYQo+IHZlY3RvciB3aXRob3V0IGEgSVJRIGFz c2lnbmVkIGNhbiBoYXZlIGEgdmVjdG9yIGFzc2lnbmVkLiBJcyB0aGlzCj4gY292ZXJpbmcgdXAg Zm9yIHRoZSBsYWNrIG9mIGNsZWFudXAgZWxzZXdoZXJlPwoKSSBkb24ndCB0aGluayBzbywgbm8u IEhvd2V2ZXIsIHVzZXJzIG9mIGlycV90b192ZWN0b3IoKSBuZWVkIHRvCmJlIGNhcmVmdWw6IFRo ZSBmdW5jdGlvbiBjYW4gbGVnaXRpbWF0ZWx5IHJldHVybiAwIChiZXNpZGVzCklSUV9WRUNUT1Jf VU5BU1NJR05FRCkgYXMgYW4gZXJyb3IgaW5kaWNhdGlvbi4gSSd2ZSB0cmllZCB0bwpkbyBhd2F5 IHdpdGggdGhpcywgYnV0IHF1aWNrbHkgcmVhbGl6ZWQgSSdkIGJldHRlciBub3QgZG8gc28uIEkn dmUKbm90IHNlZW4gdGhlIHByaW50aygpIHRyaWdnZXIsIGJ1dCBJJ2QgcmF0aGVyIHNlZSB0aGUg cHJpbnRrKCkgbG9nCmEgbWVzc2FnZSB0ZWxsaW5nIHVzIHRoYXQgd2UgYWxzbyBuZWVkIHRvIGV4 Y2x1ZGUgdmVjdG9yIDAgdGhhbgphIHdyb25nIGFzc2VydGlvbiB0byBmaXJlLgoKSmFuCgoKX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1h aWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54 ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA==