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Wed, 19 Feb 2020 11:14:40 +0000 MIME-Version: 1.0 Date: Wed, 19 Feb 2020 11:14:40 +0000 From: Marc Zyngier To: James Morse Subject: Re: [PATCH 3/5] kvm: arm64: Limit PMU version to ARMv8.1 In-Reply-To: References: <20200216185324.32596-1-maz@kernel.org> <20200216185324.32596-4-maz@kernel.org> Message-ID: <89155997285a33615093210d6c4de26d@kernel.org> X-Sender: maz@kernel.org User-Agent: Roundcube Webmail/1.3.10 X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: james.morse@arm.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, peter.maydell@linaro.org, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200219_031443_072535_F1A1AF24 X-CRM114-Status: GOOD ( 17.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , kvm@vger.kernel.org, Suzuki K Poulose , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, Julien Thierry Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gMjAyMC0wMi0xOSAxMDoxOCwgSmFtZXMgTW9yc2Ugd3JvdGU6Cj4gSGkgTWFyYywKPiAKPiBP biAyLzE5LzIwIDk6NDYgQU0sIE1hcmMgWnluZ2llciB3cm90ZToKPj4gT24gMjAyMC0wMi0xOCAx Nzo0MywgSmFtZXMgTW9yc2Ugd3JvdGU6Cj4+PiBIaSBNYXJjLAo+Pj4gCj4+PiBPbiAxNi8wMi8y MDIwIDE4OjUzLCBNYXJjIFp5bmdpZXIgd3JvdGU6Cj4+Pj4gT3VyIFBNVSBjb2RlIGlzIG9ubHkg aW1wbGVtZW50aW5nIHRoZSBBUk12OC4xIGZlYXR1cmVzLCBzbyBsZXQncwo+Pj4+IHN0aWNrIHRv IHRoaXMgd2hlbiByZXBvcnRpbmcgdGhlIGZlYXR1cmUgc2V0IHRvIHRoZSBndWVzdC4KPj4+IAo+ Pj4+IGRpZmYgLS1naXQgYS9hcmNoL2FybTY0L2t2bS9zeXNfcmVncy5jIGIvYXJjaC9hcm02NC9r dm0vc3lzX3JlZ3MuYwo+Pj4+IGluZGV4IDY4MmZlZGQ3NzAwZi4uMDZiMmQwZGM2YzczIDEwMDY0 NAo+Pj4+IC0tLSBhL2FyY2gvYXJtNjQva3ZtL3N5c19yZWdzLmMKPj4+PiArKysgYi9hcmNoL2Fy bTY0L2t2bS9zeXNfcmVncy5jCj4+Pj4gQEAgLTEwOTMsNiArMTA5MywxMSBAQCBzdGF0aWMgdTY0 IHJlYWRfaWRfcmVnKGNvbnN0IHN0cnVjdCBrdm1fdmNwdQo+Pj4+ICp2Y3B1LAo+Pj4+IMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgRkVBVFVSRShJRF9BQTY0SVNBUjFfR1BBKSB8 Cj4+Pj4gwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCBGRUFUVVJFKElEX0FBNjRJ U0FSMV9HUEkpKTsKPj4+PiDCoMKgwqDCoMKgwqDCoMKgIGJyZWFrOwo+Pj4+ICvCoMKgwqAgY2Fz ZSBTWVNfSURfQUE2NERGUjBfRUwxOgo+Pj4+ICvCoMKgwqDCoMKgwqDCoCAvKiBMaW1pdCBQTVUg dG8gQVJNdjguMSAqLwo+Pj4gCj4+PiBOb3QganVzdCBsaW1pdCwgYnV0IHVwZ3JhZGUgdG9vISAo Zm9yY2U/KQo+Pj4gVGhpcyBsb29rcyBzYWZlIGJlY2F1c2UgQVJNVjhfUE1VX0VWVFlQRV9FVkVO VCBhbHdheXMgaW5jbHVkZXMgdGhlCj4+PiBleHRyYSBiaXRzIHRoaXMgYWRkZWQsIGFuZCB0aGUg cmVnaXN0ZXIgaXMgYWx3YXlzIHRyYXBwZWQuCj4+IAo+PiBUaGF0J3MgZGVmaW5pdGVseSBub3Qg d2hhdCBJIGludGVuZGVkISBMZXQgbWUgZml4IHRoYXQgb25lLgo+IAo+IFdoYXQgZ29lcyB3cm9u Zz8KPiAKPiBUaGUgcmVnaXN0ZXIgZGVzY3JpcHRpb24gc2F5cyB0byBzdXBwb3J0IHY4LjEgeW91 IG5lZWQ6Cj4gfCBFeHRlbmRlZCAxNi1iaXQgUE1FVlRZUEVSPG4+X0VMMC5ldnRDb3VudCBmaWVs ZAo+IHwgSWYgRUwyIGlzIGltcGxlbWVudGVkLCB0aGUgTURDUl9FTDIuSFBNRCBjb250cm9sIGJp dAo+IAo+IEl0IGxvb2tzIGxpa2UgdGhlIGV4dGVuZGVkIFBNRVZUWVBFUiB3b3VsZCB3b3JrIHZp YSB0aGUgZW11bGF0aW9uLCBhbmQKPiBFTDIgZ3Vlc3RzIGFyZSB0b3RhbGx5IGNyYXp5Lgo+IAo+ IElzIHRoZSBTVEFMTF8qIGJpdHMgaW4gQVJNdjguMS1QTVUgdGhlIHByb2JsZW0sIC4uLiBvciB0 aGUgZXh0cmEgd29yawo+IGZvciBOVj8KCldoYXQgZ29lcyB3cm9uZyBpcyB0aGF0IG9uIGEgdjgu MCBzeXN0ZW0sIHRoZSBndWVzdCBjb3VsZCBiZSB0ZW1wdGVkIHRvCnVzZSBldmVudHMgaW4gdGhl IDB4MDQwMC0weGZmZmYgcmFuZ2UuIEl0IHdvdWxkbid0IGJyZWFrIGFueXRoaW5nLCBidXQKaXQg d291bGRuJ3QgZ2l2ZSB0aGUgZXhwZWN0ZWQgcmVzdWx0LgoKSSBkb24ndCBjYXJlIG11Y2ggZm9y IFBNVSBzdXBwb3J0IGluIEVMMiBndWVzdHMgYXQgdGhpcyBzdGFnZS4KCj4+PiBUaGUgUE1VIHZl cnNpb24gaXMgYWxzbyByZWFkYWJsZSB2aWEgSURfREZSMF9FTDEuUGVyZk1vbiwgc2hvdWxkIHRo YXQKPj4+IGJlIHNhbml0aXNlZCB0byBiZSB0aGUgc2FtZT8gKEkgZG9uJ3QgdGhpbmsgd2UndmUg aGlkZGVuIGFuIGFhcmNoNjQKPj4+IGZlYXR1cmUgdGhhdCBhbHNvIGV4aXN0ZWQgaW4gYWFyY2gz MiBiZWZvcmUpLgo+PiAKPj4gSW5kZWVkLCB5ZXQgYW5vdGhlciBvdmVyc2lnaHQuIEknbGwgZml4 IHRoYXQgdG9vLgo+IAo+IChXZWlyZCB2YXJpYXRpb24gaW4gdGhlIGFhcmNoMzIgYW5kIGFhcmNo NjQgSUQgcmVnaXN0ZXJzIGlzbid0IAo+IHNvbWV0aGluZwo+IEkgY2FyZSBhYm91dCAuLi4gd2hv IHdvdWxkIGV2ZXIgbG9vayBhdCBib3RoPykKCkEgNjRiaXQgZ3Vlc3QgcnVubmluZyBhIDMyYml0 IEVMMD8KCiAgICAgICAgIE0uCi0tIApKYXp6IGlzIG5vdCBkZWFkLiBJdCBqdXN0IHNtZWxscyBm dW5ueS4uLgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K bGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZy YWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGlu dXgtYXJtLWtlcm5lbAo=