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[34.78.232.44]) by smtp.gmail.com with ESMTPSA id l4-20020a1ced04000000b003fbe561f6a3sm2100287wmh.37.2023.07.07.03.59.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Jul 2023 03:59:35 -0700 (PDT) Date: Fri, 7 Jul 2023 10:59:31 +0000 From: Mostafa Saleh To: Sudeep Holla Cc: maz@kernel.org, oliver.upton@linux.dev, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, tabba@google.com, qperret@google.com, will@kernel.org, catalin.marinas@arm.com, yuzenghui@huawei.com, suzuki.poulose@arm.com, james.morse@arm.com, bgardon@google.com, gshan@redhat.com Subject: Re: [PATCH v2] KVM: arm64: Add missing BTI instructions Message-ID: References: <20230706152240.685684-1-smostafa@google.com> <20230706162308.kyeitspgfaqb6vgn@bogus> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230706162308.kyeitspgfaqb6vgn@bogus> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230707_035939_139546_AA5D5AB5 X-CRM114-Status: GOOD ( 24.57 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gVGh1LCBKdWwgMDYsIDIwMjMgYXQgMDU6MjM6MDhQTSArMDEwMCwgU3VkZWVwIEhvbGxhIHdy b3RlOgo+IE9uIFRodSwgSnVsIDA2LCAyMDIzIGF0IDAzOjIyOjQwUE0gKzAwMDAsIE1vc3RhZmEg U2FsZWggd3JvdGU6Cj4gPiBTb21lIGJ0aSBpbnN0cnVjdGlvbnMgd2VyZSBtaXNzaW5nIGZyb20K PiA+IGNvbW1pdCBiNTNkNGEyNzIzNDkgKCJLVk06IGFybTY0OiBVc2UgQlRJIGZvciBudmhlIikK PiA+IAo+ID4gMSkga3ZtX2hvc3RfcHNjaV9jcHVfZW50cnkKPiA+IGt2bV9ob3N0X3BzY2lfY3B1 X2VudHJ5IGlzIGNhbGxlZCBmcm9tIF9fa3ZtX2h5cF9pbml0X2NwdSB0aHJvdWdoICJiciIKPiA+ IGluc3RydWN0aW9uIGFzIF9fa3ZtX2h5cF9pbml0X2NwdSByZXNpZGVzIGluIGlkbWFwIHNlY3Rp b24gd2hpbGUKPiA+IGt2bV9ob3N0X3BzY2lfY3B1X2VudHJ5IGlzIGluIGh5cCAudGV4dCBzbyB0 aGUgb2Zmc2V0IGlzIGxhcmdlciB0aGFuCj4gPiAxMjhNQiByYW5nZSBjb3ZlcmVkIGJ5ICJiIi4K PiA+IFdoaWNoIG1lYW5zIHRoYXQgdGhpcyBmdW5jdGlvbiBzaG91bGQgc3RhcnQgd2l0aCAiYnRp IGoiIGluc3RydWN0aW9uLgo+ID4gCj4gPiBMTFZNIHdoaWNoIGlzIHRoZSBvbmx5IGNvbXBpbGVy IHN1cHBvcnRpbmcgQlRJIGZvciBMaW51eCwgYWRkcyAiYnRpIGoiCj4gPiBmb3IganVtcCB0YWJs ZXMgb3IgYnkgd2hlbiB0YWtpbmcgdGhlIGFkZHJlc3Mgb2YgdGhlIGJsb2NrIFsxXS4KPiA+IFNh bWUgYmVoYXZpb3VyIGlzIG9ic2VydmVkIHdpdGggR0NDLgo+ID4gCj4gPiBBcyBrdm1faG9zdF9w c2NpX2NwdV9lbnRyeSBpcyBhIEMgZnVuY3Rpb24sIHRoaXMgbXVzdCBiZSBkb25lIGluCj4gPiBh c3NlbWJseS4KPiA+IAo+ID4gQW5vdGhlciBzb2x1dGlvbiBpcyB0byB1c2UgWDE2L1gxNyB3aXRo ICJiciIsIGFzIGFjY29yZGluZyB0byBBUk0KPiA+IEFSTSBEREkwNDg3SS5hIFJMSkhDTC9JR01H UlMsIFBBQ0lBU1AgaGFzIGFuIGltcGxpY2l0IGJyYW5jaAo+ID4gdGFyZ2V0IGlkZW50aWZpY2F0 aW9uIGluc3RydWN0aW9uIHRoYXQgaXMgY29tcGF0aWJsZSB3aXRoCj4gPiBQU1RBVEUuQlRZUEUg MGIwMSB3aGljaCBpbmNsdWRlcyAiYnIgWDE2L1gxNyIKPiA+IEFuZCB0aGUga3ZtX2hvc3RfcHNj aV9jcHVfZW50cnkgaGFzIFBBQ0lBU1AgYXMgaXQgaXMgYW4gZXh0ZXJuYWwKPiA+IGZ1bmN0aW9u Lgo+ID4gQWx0aG91Z2gsIHVzaW5nIGV4cGxpY2l0ICJidGkiIG1ha2VzIGl0IG1vcmUgY2xlYXIg dGhhbiByZWx5aW5nIG9uCj4gPiB3aGljaCByZWdpc3RlciBpcyB1c2VkLgo+ID4gCj4gPiBBIHRo aXJkIHNvbHV0aW9uIGlzIHRvIGNsZWFyIFNDVExSX0VMMi5CVCwgd2hpY2ggd291bGQgbWFrZSBQ QUNJQVNQCj4gPiBjb21wYXRpYmxlIFBTVEFURS5CVFlQRSAwYjExICgiYnIiIHRvIG90aGVyIHJl Z2lzdGVycykuCj4gPiBIb3dldmVyIHRoaXMgZGV2aWF0ZXMgZnJvbSB0aGUga2VybmVsIGJlaGF2 aW91ciAoaW4gYnRpX2VuYWJsZSgpKS4KPiA+IAo+ID4gMikgU3BlY3RyZSB2ZWN0b3IgdGFibGUK PiA+ICJiciIgaW5zdHJ1Y3Rpb25zIGFyZSBnZW5lcmF0ZWQgYXQgcnVudGltZSBmb3IgdGhlIHZl Y3RvciB0YWJsZQo+ID4gKF9fYnBfaGFyZGVuX2h5cF92ZWNzKS4KPiA+IFRoZXNlIGJyYW5jaGVz IHdvdWxkIGxhbmQgb24gdmVjdG9ycyBpbiBfX2t2bV9oeXBfdmVjdG9yIGF0IG9mZnNldCA4Lgo+ ID4gQXMgYWxsIHRoZSBtYWNyb3MgYXJlIGRlZmluZWQgd2l0aCB2YWxpZF92ZWN0L2ludmFsaWRf dmVjdCwgaXQgaXMKPiA+IHN1ZmZpY2llbnQgdG8gYWRkICJidGkgaiIgYXQgdGhlIGNvcnJlY3Qg b2Zmc2V0Lgo+ID4gCj4gPiBbMV0gaHR0cHM6Ly9yZXZpZXdzLmxsdm0ub3JnL0Q1Mjg2Nwo+ID4g Cj4gPiBGaXhlczogYjUzZDRhMjcyMzQ5ICgiS1ZNOiBhcm02NDogVXNlIEJUSSBmb3IgbnZoZSIp Cj4gPiBTaWduZWQtb2ZmLWJ5OiBNb3N0YWZhIFNhbGVoIDxzbW9zdGFmYUBnb29nbGUuY29tPgo+ ID4gUmVwb3J0ZWQtYnk6IFN1ZGVlcCBIb2xsYSA8c3VkZWVwLmhvbGxhQGFybS5jb20+Cj4gCj4g Tm90aGluZyBjaGFuZ2Ugdy5yLnQgY3B1IHN1c3BlbmQtcmVzdW1lIHBhdGggaW4gdjIgYW55d2F5 cywgYnV0IEkgYXNzdXJlCj4gSSB0ZXN0ZWQgdGhpcyBhZ2FpbiBqdXN0IGJlIGFic29sdXRlbHkg c3VyZSBhbmQgaXQgc3RpbGwgZml4ZXMgdGhlIGlzc3VlCj4gSSByZXBvcnRlZCDwn5iELCBzbwo+ IAo+IFRlc3RlZC1ieTogU3VkZWVwIEhvbGxhIDxzdWRlZXAuaG9sbGFAYXJtLmNvbT4KClRoYW5r cyBmb3IgdGVzdGluZyB0aGUgcGF0Y2ggYWdhaW4hCgoKX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGlu dXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQu b3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=