From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: [PATCH v5 06/14] x86emul: tell cmpxchg hook whether LOCK is in effect Date: Thu, 15 Mar 2018 07:07:12 -0600 Message-ID: <5AAA7E1002000078001B2285@prv-mh.provo.novell.com> References: <5AAA7BAF02000078001B2242@prv-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewSbI-0002K2-4A for xen-devel@lists.xenproject.org; Thu, 15 Mar 2018 13:07:20 +0000 In-Reply-To: <5AAA7BAF02000078001B2242@prv-mh.provo.novell.com> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: xen-devel Cc: George Dunlap , Andrew Cooper List-Id: xen-devel@lists.xenproject.org VGhpcyBpcyBuZWNlc3NhcnkgZm9yIHRoZSBob29rIHRvIGNvcnJlY3RseSBwZXJmb3JtIHRoZSBv cGVyYXRpb24uCgpTaWduZWQtb2ZmLWJ5OiBKYW4gQmV1bGljaCA8amJldWxpY2hAc3VzZS5jb20+ ClJldmlld2VkLWJ5OiBQYXVsIER1cnJhbnQgPHBhdWwuZHVycmFudEBjaXRyaXguY29tPgpSZXZp ZXdlZC1ieTogQW5kcmV3IENvb3BlciA8YW5kcmV3LmNvb3BlcjNAY2l0cml4LmNvbT4KQWNrZWQt Ynk6IFRpbSBEZWVnYW4gPHRpbUB4ZW4ub3JnPgotLS0KdjU6IFJlLWJhc2UuCnYzOiBOZXcuCgot LS0gYS90b29scy9mdXp6L3g4Nl9pbnN0cnVjdGlvbl9lbXVsYXRvci9mdXp6LWVtdWwuYworKysg Yi90b29scy9mdXp6L3g4Nl9pbnN0cnVjdGlvbl9lbXVsYXRvci9mdXp6LWVtdWwuYwpAQCAtMzQ3 LDYgKzM0Nyw3IEBAIHN0YXRpYyBpbnQgZnV6el9jbXB4Y2hnKAogICAgIHZvaWQgKm9sZCwKICAg ICB2b2lkICpuZXcsCiAgICAgdW5zaWduZWQgaW50IGJ5dGVzLAorICAgIGJvb2wgbG9jaywKICAg ICBzdHJ1Y3QgeDg2X2VtdWxhdGVfY3R4dCAqY3R4dCkKIHsKICAgICAvKgotLS0gYS90b29scy90 ZXN0cy94ODZfZW11bGF0b3IvdGVzdF94ODZfZW11bGF0b3IuYworKysgYi90b29scy90ZXN0cy94 ODZfZW11bGF0b3IvdGVzdF94ODZfZW11bGF0b3IuYwpAQCAtMzIwLDYgKzMyMCw3IEBAIHN0YXRp YyBpbnQgY21weGNoZygKICAgICB2b2lkICpvbGQsCiAgICAgdm9pZCAqbmV3LAogICAgIHVuc2ln bmVkIGludCBieXRlcywKKyAgICBib29sIGxvY2ssCiAgICAgc3RydWN0IHg4Nl9lbXVsYXRlX2N0 eHQgKmN0eHQpCiB7CiAgICAgaWYgKCB2ZXJib3NlICkKLS0tIGEveGVuL2FyY2gveDg2L2h2bS9l bXVsYXRlLmMKKysrIGIveGVuL2FyY2gveDg2L2h2bS9lbXVsYXRlLmMKQEAgLTEyNTAsNiArMTI1 MCw3IEBAIHN0YXRpYyBpbnQgaHZtZW11bF9jbXB4Y2hnX2Rpc2NhcmQoCiAgICAgdm9pZCAqcF9v bGQsCiAgICAgdm9pZCAqcF9uZXcsCiAgICAgdW5zaWduZWQgaW50IGJ5dGVzLAorICAgIGJvb2wg bG9jaywKICAgICBzdHJ1Y3QgeDg2X2VtdWxhdGVfY3R4dCAqY3R4dCkKIHsKICAgICByZXR1cm4g WDg2RU1VTF9PS0FZOwpAQCAtMTI5Myw2ICsxMjk0LDcgQEAgc3RhdGljIGludCBodm1lbXVsX2Nt cHhjaGcoCiAgICAgdm9pZCAqcF9vbGQsCiAgICAgdm9pZCAqcF9uZXcsCiAgICAgdW5zaWduZWQg aW50IGJ5dGVzLAorICAgIGJvb2wgbG9jaywKICAgICBzdHJ1Y3QgeDg2X2VtdWxhdGVfY3R4dCAq Y3R4dCkKIHsKICAgICAvKiBGaXggdGhpcyBpbiBjYXNlIHRoZSBndWVzdCBpcyByZWFsbHkgcmVs eWluZyBvbiByLW0tdyBhdG9taWNpdHkuICovCi0tLSBhL3hlbi9hcmNoL3g4Ni9tbS9zaGFkb3cv Y29tbW9uLmMKKysrIGIveGVuL2FyY2gveDg2L21tL3NoYWRvdy9jb21tb24uYwpAQCAtMjgxLDYg KzI4MSw3IEBAIGh2bV9lbXVsYXRlX2NtcHhjaGcoZW51bSB4ODZfc2VnbWVudCBzZWcKICAgICAg ICAgICAgICAgICAgICAgdm9pZCAqcF9vbGQsCiAgICAgICAgICAgICAgICAgICAgIHZvaWQgKnBf bmV3LAogICAgICAgICAgICAgICAgICAgICB1bnNpZ25lZCBpbnQgYnl0ZXMsCisgICAgICAgICAg ICAgICAgICAgIGJvb2wgbG9jaywKICAgICAgICAgICAgICAgICAgICAgc3RydWN0IHg4Nl9lbXVs YXRlX2N0eHQgKmN0eHQpCiB7CiAgICAgc3RydWN0IHNoX2VtdWxhdGVfY3R4dCAqc2hfY3R4dCA9 Ci0tLSBhL3hlbi9hcmNoL3g4Ni9wdi9yby1wYWdlLWZhdWx0LmMKKysrIGIveGVuL2FyY2gveDg2 L3B2L3JvLXBhZ2UtZmF1bHQuYwpAQCAtMjE2LDcgKzIxNiw3IEBAIHN0YXRpYyBpbnQgcHR3cl9l bXVsYXRlZF93cml0ZShlbnVtIHg4Nl8KIAogc3RhdGljIGludCBwdHdyX2VtdWxhdGVkX2NtcHhj aGcoZW51bSB4ODZfc2VnbWVudCBzZWcsIHVuc2lnbmVkIGxvbmcgb2Zmc2V0LAogICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgdm9pZCAqcF9vbGQsIHZvaWQgKnBfbmV3LCB1bnNpZ25l ZCBpbnQgYnl0ZXMsCi0gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBzdHJ1Y3QgeDg2 X2VtdWxhdGVfY3R4dCAqY3R4dCkKKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGJv b2wgbG9jaywgc3RydWN0IHg4Nl9lbXVsYXRlX2N0eHQgKmN0eHQpCiB7CiAgICAgaW50cHRlX3Qg b2xkID0gMCwgbmV3ID0gMDsKIAotLS0gYS94ZW4vYXJjaC94ODYveDg2X2VtdWxhdGUveDg2X2Vt dWxhdGUuYworKysgYi94ZW4vYXJjaC94ODYveDg2X2VtdWxhdGUveDg2X2VtdWxhdGUuYwpAQCAt MTk0Nyw3ICsxOTQ3LDcgQEAgcHJvdG1vZGVfbG9hZF9zZWcoCiAKICAgICAgICAgZmFpbF9pZigh b3BzLT5jbXB4Y2hnKTsKICAgICAgICAgc3dpdGNoICggKHJjID0gb3BzLT5jbXB4Y2hnKHNlbF9z ZWcsIChzZWwgJiAweGZmZjgpICsgNCwgJmRlc2MuYiwKLSAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICZuZXdfZGVzY19iLCBzaXplb2YoZGVzYy5iKSwgY3R4dCkpICkKKyAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICZuZXdfZGVzY19iLCBzaXplb2YoZGVzYy5i KSwgdHJ1ZSwgY3R4dCkpICkKICAgICAgICAgewogICAgICAgICBjYXNlIFg4NkVNVUxfT0tBWToK ICAgICAgICAgICAgIGJyZWFrOwpAQCAtNjk0MSw3ICs2OTQxLDggQEAgeDg2X2VtdWxhdGUoCiAg ICAgICAgICAgICB9CiAKICAgICAgICAgICAgIGlmICggKHJjID0gb3BzLT5jbXB4Y2hnKGVhLm1l bS5zZWcsIGVhLm1lbS5vZmYsIG9sZCwgYXV4LAotICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgb3BfYnl0ZXMsIGN0eHQpKSAhPSBYODZFTVVMX09LQVkgKQorICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgb3BfYnl0ZXMsIGxvY2tfcHJlZml4LAorICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgY3R4dCkpICE9IFg4NkVNVUxfT0tBWSApCiAgICAg ICAgICAgICAgICAgZ290byBkb25lOwogICAgICAgICAgICAgX3JlZ3MuZWZsYWdzIHw9IFg4Nl9F RkxBR1NfWkY7CiAgICAgICAgIH0KQEAgLTgzOTIsNyArODM5Myw3IEBAIHg4Nl9lbXVsYXRlKAog ICAgICAgICAgICAgZmFpbF9pZighb3BzLT5jbXB4Y2hnKTsKICAgICAgICAgICAgIHJjID0gb3Bz LT5jbXB4Y2hnKAogICAgICAgICAgICAgICAgIGRzdC5tZW0uc2VnLCBkc3QubWVtLm9mZiwgJmRz dC5vcmlnX3ZhbCwKLSAgICAgICAgICAgICAgICAmZHN0LnZhbCwgZHN0LmJ5dGVzLCBjdHh0KTsK KyAgICAgICAgICAgICAgICAmZHN0LnZhbCwgZHN0LmJ5dGVzLCB0cnVlLCBjdHh0KTsKICAgICAg ICAgfQogICAgICAgICBlbHNlCiAgICAgICAgIHsKLS0tIGEveGVuL2FyY2gveDg2L3g4Nl9lbXVs YXRlL3g4Nl9lbXVsYXRlLmgKKysrIGIveGVuL2FyY2gveDg2L3g4Nl9lbXVsYXRlL3g4Nl9lbXVs YXRlLmgKQEAgLTI0NSwxMCArMjQ1LDExIEBAIHN0cnVjdCB4ODZfZW11bGF0ZV9vcHMKICAgICAg ICAgc3RydWN0IHg4Nl9lbXVsYXRlX2N0eHQgKmN0eHQpOwogCiAgICAgLyoKLSAgICAgKiBjbXB4 Y2hnOiBFbXVsYXRlIGFuIGF0b21pYyAoTE9DS2VkKSBDTVBYQ0hHIG9wZXJhdGlvbi4KKyAgICAg KiBjbXB4Y2hnOiBFbXVsYXRlIGEgQ01QWENIRyBvcGVyYXRpb24uCiAgICAgICogIEBwX29sZDog W0lOIF0gUG9pbnRlciB0byB2YWx1ZSBleHBlY3RlZCB0byBiZSBjdXJyZW50IGF0IEBhZGRyLgog ICAgICAqICBAcF9uZXc6IFtJTiBdIFBvaW50ZXIgdG8gdmFsdWUgdG8gd3JpdGUgdG8gQGFkZHIu CiAgICAgICogIEBieXRlczogW0lOIF0gT3BlcmF0aW9uIHNpemUgKHVwIHRvIDggKHg4Ni8zMikg b3IgMTYgKHg4Ni82NCkgYnl0ZXMpLgorICAgICAqICBAbG9jazogIFtJTiBdIGF0b21pYyAoTE9D S2VkKSBvcGVyYXRpb24KICAgICAgKi8KICAgICBpbnQgKCpjbXB4Y2hnKSgKICAgICAgICAgZW51 bSB4ODZfc2VnbWVudCBzZWcsCkBAIC0yNTYsNiArMjU3LDcgQEAgc3RydWN0IHg4Nl9lbXVsYXRl X29wcwogICAgICAgICB2b2lkICpwX29sZCwKICAgICAgICAgdm9pZCAqcF9uZXcsCiAgICAgICAg IHVuc2lnbmVkIGludCBieXRlcywKKyAgICAgICAgYm9vbCBsb2NrLAogICAgICAgICBzdHJ1Y3Qg eDg2X2VtdWxhdGVfY3R4dCAqY3R4dCk7CiAKICAgICAvKgoKCgpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1k ZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21h aWxtYW4vbGlzdGluZm8veGVuLWRldmVs