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[77.130.112.4]) by smtp.googlemail.com with ESMTPSA id h2sm69315371wro.11.2019.04.15.01.26.46 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 15 Apr 2019 01:26:47 -0700 (PDT) Subject: Re: [PATCH 1/4] arm64: Restrict ARM64_ERRATUM_1188873 mitigation to AArch32 To: Marc Zyngier , Will Deacon References: <20190408160216.223871-1-marc.zyngier@arm.com> <20190408160216.223871-2-marc.zyngier@arm.com> <20190412131750.GC29218@fuggles.cambridge.arm.com> <0ae5e59a-8e24-b4ca-581d-d7c99c0404a6@arm.com> From: Daniel Lezcano Message-ID: <841a86f7-8255-f438-4f13-2e232ef82b13@linaro.org> Date: Mon, 15 Apr 2019 10:26:46 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <0ae5e59a-8e24-b4ca-581d-d7c99c0404a6@arm.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190415_012650_683038_1D6B8C06 X-CRM114-Status: GOOD ( 19.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Catalin Marinas , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gMTUvMDQvMjAxOSAxMDoxNSwgTWFyYyBaeW5naWVyIHdyb3RlOgo+IE9uIDEyLzA0LzIwMTkg MTQ6MTcsIFdpbGwgRGVhY29uIHdyb3RlOgo+PiBIaSBNYXJjLAo+Pgo+PiBPbiBNb24sIEFwciAw OCwgMjAxOSBhdCAwNTowMjoxM1BNICswMTAwLCBNYXJjIFp5bmdpZXIgd3JvdGU6Cj4+PiBXZSBj dXJyZW50bHkgZGVhbCB3aXRoIEFSTTY0X0VSUkFUVU1fMTE4ODg3MyBieSBhbHdheXMgdHJhcHBp bmcgRUwwCj4+PiBhY2Nlc3NlcyBmb3IgYm90aCBpbnN0cnVjdGlvbiBzZXRzLiBBbHRob3VnaCBu b3RoaW5nIHdyb25nIGNvbWVzIG91dAo+Pj4gb2YgdGhhdCwgcGVvcGxlIHRyeWluZyB0byBzcXVl ZXplIHRoZSBsYXN0IGRyb3Agb2YgcGVyZm9ybWFuY2UgZnJvbQo+Pj4gYnVnZ3kgSFcgZmluZCB0 aGlzIG92ZXIgdGhlIHRvcC4gT2ggd2VsbC4KPj4+Cj4+PiBMZXQncyBjaGFuZ2UgdGhlIG1pdGln YXRpb24gYnkgZmxpcHBpbmcgdGhlIGNvdW50ZXIgZW5hYmxlIGJpdAo+Pj4gb24gcmV0dXJuIHRv IHVzZXJzcGFjZS4gTm9uLWJyb2tlbiBIVyBnZXRzIGFuIGV4dHJhIGJyYW5jaCBvbgo+Pj4gdGhl IGZhc3QgcGF0aCwgd2hpY2ggaXMgaG9wZWZ1bGx5IG5vdCB0aGUgZW5kIG9mIHRoZSB3b3JsZC4K Pj4+IFRoZSBhcmNoIHRpbWVyIHdvcmthcm91bmQgaXQgYWxzbyByZW1vdmVkLgo+Pj4KPj4+IFNp Z25lZC1vZmYtYnk6IE1hcmMgWnluZ2llciA8bWFyYy56eW5naWVyQGFybS5jb20+CgpIaSBNYXJj LAoKZm9yIHRoZSBhcm1fYXJjaF90aW1lci5jIHBhcnQ6CgpBY2tlZC1ieTogRGFuaWVsIExlemNh bm8gPGRhbmllbC5sZXpjYW5vQGxpbmFyby5vcmc+CgoKPj4+IC0tLQo+Pj4gIGFyY2gvYXJtNjQv a2VybmVsL2VudHJ5LlMgICAgICAgICAgICB8IDIzICsrKysrKysrKysrKysrKysrKysrKysrCj4+ PiAgZHJpdmVycy9jbG9ja3NvdXJjZS9hcm1fYXJjaF90aW1lci5jIHwgMTUgLS0tLS0tLS0tLS0t LS0tCj4+PiAgMiBmaWxlcyBjaGFuZ2VkLCAyMyBpbnNlcnRpb25zKCspLCAxNSBkZWxldGlvbnMo LSkKPj4+Cj4+PiBkaWZmIC0tZ2l0IGEvYXJjaC9hcm02NC9rZXJuZWwvZW50cnkuUyBiL2FyY2gv YXJtNjQva2VybmVsL2VudHJ5LlMKPj4+IGluZGV4IGM1MGE3YTc1ZjJlMC4uZTBhZWQyMWFiNDAy IDEwMDY0NAo+Pj4gLS0tIGEvYXJjaC9hcm02NC9rZXJuZWwvZW50cnkuUwo+Pj4gKysrIGIvYXJj aC9hcm02NC9rZXJuZWwvZW50cnkuUwo+Pj4gQEAgLTMzNiw2ICszMzYsMjkgQEAgYWx0ZXJuYXRp dmVfaWYgQVJNNjRfV09SS0FST1VORF84NDU3MTkKPj4+ICBhbHRlcm5hdGl2ZV9lbHNlX25vcF9l bmRpZgo+Pj4gICNlbmRpZgo+Pj4gIDM6Cj4+PiArI2lmZGVmIENPTkZJR19BUk02NF9FUlJBVFVN XzExODg4NzMKPj4+ICthbHRlcm5hdGl2ZV9pZl9ub3QgQVJNNjRfV09SS0FST1VORF8xMTg4ODcz Cj4+PiArCWIJMWYKPj4+ICthbHRlcm5hdGl2ZV9lbHNlX25vcF9lbmRpZgo+Pj4gKwo+Pj4gKwl1 YmZ4CXgwLCB4MjIsICM0LCAjMQkJCS8vIEV4dHJhY3QgUFNSX01PREUzMgo+Pj4gKwllb3IJeDAs IHgwLCAjMQkJCS8vIE5lZ2F0ZSBpdAo+Pj4gK2FsdGVybmF0aXZlX2lmX25vdCBBUk02NF9IQVNf VklSVF9IT1NUX0VYVE4KPj4+ICsJbXJzCXgxLCBjbnRrY3RsX2VsMQo+Pj4gK2FsdGVybmF0aXZl X2Vsc2UKPj4+ICsJbXJzCXgxLCBjbnRoY3RsX2VsMgo+Pj4gK2FsdGVybmF0aXZlX2VuZGlmCj4+ PiArCXViZngJeDIsIHgxLCAjMSwgIzEJCQkvLyBFeHRyYWN0IEVMMFZDVEVOCj4+PiArCWNtcAl4 MiwgeDAKPj4KPj4gQXJlbid0IHRoZSBmbGFncyBsaXZlIGF0IHRoaXMgcG9pbnQgKHRoZXkgaW5k aWNhdGUgbmF0aXZlIHZzIGNvbXBhdCk/Cj4+IE1heWJlIHlvdSBjYW4gdXNlIHRoYXQgaW5zdGVh ZCBvZiByZS1leHRyYWN0aW5nIFBTUl9NT0RFMzIuCj4gCj4gUm9iaW4gYW5kIEkgaGF2ZSBiZWVu IHJld29ya2luZyB0aGlzLCBzZWUgb3RoZXIgZW1haWxzIGluIHRoZSBzYW1lCj4gdGhyZWFkLCBh bmQgdGhlIGNvZGUgbG9va3MgcHJldHR5IGRpZmZlcmVudCBub3cgKGFuZCBub3QgYnJlYWtpbmcg dGhpbmdzCj4gYW55bW9yZSkuCj4gCj4+Cj4+PiArCWIuZXEJMWYJCQkJLy8gTWF0Y2hlcywgbm90 aGluZyB0byBkbwo+Pj4gKwliZmkJeDEsIHgwLCAjMSwgIzEJCQkvLyBNb3ZlIEVMMFZDVEVOIGlu IHBsYWNlCj4+Cj4+IEFSQ0hfVElNRVJfVVNSX1ZDVF9BQ0NFU1NfRU4KPj4KPj4+ICthbHRlcm5h dGl2ZV9pZl9ub3QgQVJNNjRfSEFTX1ZJUlRfSE9TVF9FWFROCj4+PiArCW1zcgljbnRrY3RsX2Vs MSwgeDEKPj4+ICthbHRlcm5hdGl2ZV9lbHNlCj4+PiArCW1zcgljbnRoY3RsX2VsMiwgeDEKPj4+ ICthbHRlcm5hdGl2ZV9lbmRpZgo+Pj4gKzE6Cj4+Cj4+IFNvcnJ5IHRvIGJlIGEgcGFpbiwgYnV0 IGNvdWxkIHlvdSB1c2UgbGFiZWwgJzQ6JyBoZXJlIGFuZCB1cGRhdGUgdGhlIG90aGVycwo+PiBp biB0aGlzIG1hY3JvLCBwbGVhc2U/Cj4gCj4gU3VyZSwgbm8gcHJvYmxlbS4KPiAKPj4KPj4+ICsj ZW5kaWYKPj4+ICAJYXBwbHlfc3NiZCAwLCB4MCwgeDEKPj4+ICAJLmVuZGlmCj4+PiAgCj4+PiBk aWZmIC0tZ2l0IGEvZHJpdmVycy9jbG9ja3NvdXJjZS9hcm1fYXJjaF90aW1lci5jIGIvZHJpdmVy cy9jbG9ja3NvdXJjZS9hcm1fYXJjaF90aW1lci5jCj4+PiBpbmRleCA1ZmNjY2M0Njc4NjguLjI3 YWNjOWViMGY3YyAxMDA2NDQKPj4+IC0tLSBhL2RyaXZlcnMvY2xvY2tzb3VyY2UvYXJtX2FyY2hf dGltZXIuYwo+Pj4gKysrIGIvZHJpdmVycy9jbG9ja3NvdXJjZS9hcm1fYXJjaF90aW1lci5jCj4+ Cj4+IEkgcHJvYmFibHkgbmVlZCBhbiBBY2sgZnJvbSBUaG9tYXMgb3IgRGFuaWVsIG9uIHRoZXNl IHBhcnRzLCBzbyBJIGNhbiB0YWtlCj4+IHRoZSBzZXJpZXMgdmlhIGFybTY0Lgo+IAo+IERhbmll bCBpcyBvbiBDYywgYW5kIGhvcGVmdWxseSB2MiB3aWxsIGJlIE9LLgoKCi0tIAogPGh0dHA6Ly93 d3cubGluYXJvLm9yZy8+IExpbmFyby5vcmcg4pSCIE9wZW4gc291cmNlIHNvZnR3YXJlIGZvciBB Uk0gU29DcwoKRm9sbG93IExpbmFybzogIDxodHRwOi8vd3d3LmZhY2Vib29rLmNvbS9wYWdlcy9M aW5hcm8+IEZhY2Vib29rIHwKPGh0dHA6Ly90d2l0dGVyLmNvbS8jIS9saW5hcm9vcmc+IFR3aXR0 ZXIgfAo8aHR0cDovL3d3dy5saW5hcm8ub3JnL2xpbmFyby1ibG9nLz4gQmxvZwoKCl9fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwg bWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8v bGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK