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Wed, 24 May 2023 19:13:10 +0300 (EEST) From: =?ISO-8859-1?Q?R=E9mi?= Denis-Courmont To: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Cc: andy.chiu@sifive.com, Palmer Dabbelt Subject: Re: [PATCH -next v20 20/26] riscv: Add prctl controls for userspace vector management Date: Wed, 24 May 2023 19:13:10 +0300 Message-ID: <2621691.14T4csFsIl@basile.remlab.net> Organization: Remlab In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230524_091322_912296_2CC2B688 X-CRM114-Status: GOOD ( 15.72 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org TGUga2Vza2l2aWlra29uYSAyNC4gdG91a29rdXV0YSAyMDIzLCAzLjE4LjI2IEVFU1QgUGFsbWVy IERhYmJlbHQgYSDDqWNyaXQgOgo+ID4gSSBkb24ndCB0aGluayB0aGUgdmFsdWUgb2YgYW4gYXV4 aWxsYXJ5IHZlY3RvciBlbnRyeSBjYW4gY2hhbmdlIGluIGFuCj4gPiBleGlzdGluZyBwcm9jZXNz IG5vciB0aGF0IHdlIG5lZWQgdGhhdC4gSWYgYW4gYXBwbGljYXRpb24gc3RhcnRzIHdpdGggVgo+ ID4gZGlzYWJsZWQsIHlvdSBjYW4ga2VlcCB0aGUgViBiaXQgY2xlYXIgZXZlbiBpZiBWIGdldHMg ZW5hYmxlZCBsYXRlciBvbjsKPiA+IHRoYXQgd29uJ3QgYnJlYWsgZXhpc3RpbmcgdXNlcnNwYWNl IGNvZGUsIHdoaWNoIHNpbXBseSB3b24ndCB1c2UgdmVjdG9ycy4KPiA+IAo+ID4gV2hhdCBkb2Vz IGJyZWFrIGV4aXN0aW5nIHVzZXJzcGFjZSBpcyBzZXR0aW5nIHRoZSBWIGJpdCB3aGlsc3QgdmVj dG9ycyBhcmUKPiA+IGRpc2FibGVkLgo+IFNvIG1heWJlIHRoZSByaWdodCBhbnN3ZXIgaXMgdG8g anVzdCBub3Qgc2V0IFYgYXQgYWxsPwoKVGhhdCBpcyBvbmUgcG9zc2liaWxpdHkgdGhhdCBJIGNh biBsaXZlLCBhbHRob3VnaCBpdCBmZWVscyB1bm5lY2Vzc2FyaWx5IHVzZXItCmhvc3RpbGUgY29t cGFyZWQgdG8gc2V0dGluZyBpdCBvbmx5IGlmIHRoZSBwcm9jZXNzIF9zdGFydGVkXyB3aXRoIFYg ZW5hYmxlZC4KCj4gVGhlCj4gc2luZ2xlLWxldHRlciBleHRlbnNpb25zIGFyZSBzb3J0IG9mIGRl ZnVuY3Qgbm93LCB0aGVyZSdzIG11bHRpLWxldHRlcgo+IHN1YiBleHRlbnNpb25zIGZvciBtb3N0 IHRoaW5ncywgYnV0IFYgZ290IHJhdGlmaWVkIHdpdGggdGhvc2UKPiBzdWItZXh0ZW5zaW9ucyBz byB3ZSBjb3VsZCBqdXN0IGNhbGwgaXQgZXh0cmEtYW1iaWd1b3VzPwoKTWF5YmU7IEkgbXVzdCBh ZG1pdCBJIGhhdmUgemVybyB2aXNpYmlsaXR5IHRvIFJWSSBpbm5lciB3b3JraW5ncy4gQXQgbGVh c3QgQywgCkQgYW5kIEYgYml0cyBjb3VsZCB3b3JrIGZvciBKSVQgdXNlIGNhc2VzLCBJIHN1cHBv c2UuIEUgYW5kIE0gYXJlIHRvdGFsbHkgCmltcHJhY3RpY2FsIHRvIHN1cHBvcnQuIEcsIEksIFgg YW5kIFogY2Fubm90IGFyZSBhbHJlYWR5IHdhc3RlZCBieSB0aGUgZGVzaWduLCAKYW5kIEkgZ3Vl c3Mgd2Ugd2lsbCBub3cgd2FzdGUgYWxsIDE2IG90aGVycy4KCkJ1dCBhcyBmb3IgViwgd2hhdCBp cyB0aGUgdXNlci1zcGFjZSBzdG9yeSBmb3IgdGhlIHByY3RsKCk/IFdobyBpcyBpbnRlbmRlZCB0 byAKZW5hYmxldCBWIG1vZGU/IElmIHRoZXJlIGlzIG5vIGNsZWFyIHN0b3J5LCBpdCBpcyBhbGwg YnV0IGd1YXJhbnRlZWQgdGhhdCAKcmFuZG9tIGxpYnJhcmllcyB3aWxsIGNhbGwgaXQsIGFuZCBq dXN0IF9ibGluZGx5XyBhc3N1bWUgdGhhdCB0aGVyZSBpcyBlbm91Z2ggCnN0YWNrIHNwYWNlIGZv ciBzaWduYWwgaGFuZGxpbmcuIElmIHNvLCB0aGVuIHRoZXJlIGlzIG5vdCBtdWNoIHBvaW50IGhh dmluZyBhIApwcmN0bCgpIGluIHRoZSBmaXJzdCBwbGFjZTsgbWlnaHQgYXMgd2VsbCBzdGljayB0 byBqdXN0IGEga2VybmVsIEtjb25maWcgd2l0aCBubyAKcnVudGltZSBjb25maWd1cmF0aW9uLgoK LS0gClLDqW1pIERlbmlzLUNvdXJtb250Cmh0dHA6Ly93d3cucmVtbGFiLm5ldC8KCgoKCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LXJpc2N2IG1h aWxpbmcgbGlzdApsaW51eC1yaXNjdkBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5p bmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtcmlzY3YK