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[97.120.254.139]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-23e3b5e3d5asm62662505ad.15.2025.07.21.14.20.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Jul 2025 14:20:05 -0700 (PDT) Date: Mon, 21 Jul 2025 14:20:03 -0700 From: Drew Fustini To: Radim =?utf-8?B?S3LEjW3DocWZ?= Cc: Drew Fustini , Palmer Dabbelt , =?iso-8859-1?Q?Bj=F6rn_T=F6pel?= , Alexandre Ghiti , Paul Walmsley , Samuel Holland , Drew Fustini , Andy Chiu , Conor Dooley , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-riscv Subject: Re: [PATCH] riscv: Add sysctl to control discard of vstate during syscall Message-ID: References: <20250719033912.1313955-1-fustini@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250721_142007_840896_58A9ADDE X-CRM114-Status: GOOD ( 20.19 ) 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 T24gTW9uLCBKdWwgMjEsIDIwMjUgYXQgMDQ6NTQ6MjVQTSArMDIwMCwgUmFkaW0gS3LEjW3DocWZ IHdyb3RlOgo+IDIwMjUtMDctMjFUMTQ6MzU6MzgrMDI6MDAsIFJhZGltIEtyxI1tw6HFmSA8cmty Y21hckB2ZW50YW5hbWljcm8uY29tPjoKPiA+IFNob3VsZG4ndCB0aGUgUklTQy1WIExpbnV4IHN5 c2NhbGwgQUJJIGJlIGRlZmluZWQgc29tZXdoZXJlPwo+IAo+IFRvIGNsYXJpZnkgdGhpcyBwb2lu dC4gIE15IGlzc3VlIGlzIHdpdGggdGhlIGZvbGxvd2luZyBwYXJ0IGluCj4gRG9jdW1lbnRhdGlv bi9hcmNoL3Jpc2N2L3ZlY3Rvci5yc3Q6Cj4gCj4gPj4gIEFzIGluZGljYXRlZCBieSB2ZXJzaW9u IDEuMCBvZiB0aGUgViBleHRlbnNpb24gWzFdLCB2ZWN0b3IgcmVnaXN0ZXJzIGFyZQo+ID4+ICBj bG9iYmVyZWQgYnkgc3lzdGVtIGNhbGxzLgo+ID4+ICBbLi4uXQo+ID4+ICAxOiBodHRwczovL2dp dGh1Yi5jb20vcmlzY3YvcmlzY3Ytdi1zcGVjL2Jsb2IvbWFzdGVyL2NhbGxpbmctY29udmVudGlv bi5hZG9jCj4gCj4gVGhlIElTQSBkb2VzIG5vdCBzYXkgdGhhdCB2ZWN0b3IgcmVnaXN0ZXJzIGFy ZSBjbG9iYmVyZWQgYnkgc3lzdGVtCj4gY2FsbHMuICBBbGwgdGhlIElTQSBzYXlzIGlzOgo+IAo+ ICAgIlRoaXMgQXBwZW5kaXggaXMgb25seSBhIHBsYWNlaG9sZGVyIHRvIGhlbHAgZXhwbGFpbiB0 aGUgY29udmVudGlvbnMKPiAgICB1c2VkIGluIHRoZSBjb2RlIGV4YW1wbGVzLCBhbmQgaXMgbm90 IGNvbnNpZGVyZWQgZnJvemVuIG9yCj4gICAgcGFydCBvZiB0aGUgcmF0aWZpY2F0aW9uIHByb2Nl c3MuICBUaGUgb2ZmaWNpYWwgUklTQy1WIHBzQUJJIGRvY3VtZW50Cj4gICAgaXMgYmVpbmcgZXhw YW5kZWQgdG8gc3BlY2lmeSB0aGUgdmVjdG9yIGNhbGxpbmcgY29udmVudGlvbnMuIgo+IAo+IHdo aWxlIHRoZSBSSVNDLVYgcHNBQkkgc2F5czoKPiAKPiAgICJUaGUgY2FsbGluZyBjb252ZW50aW9u IGZvciBzeXN0ZW0gY2FsbHMgZG9lcyBub3QgZmFsbCB3aXRoaW4gdGhlCj4gICAgc2NvcGUgb2Yg dGhpcyBkb2N1bWVudC4gUGxlYXNlIHJlZmVyIHRvIHRoZSBkb2N1bWVudGF0aW9uIG9mIHRoZQo+ ICAgIFJJU0MtViBleGVjdXRpb24gZW52aXJvbm1lbnQgaW50ZXJmYWNlIChlLmcgT1Mga2VybmVs IEFCSSwgU0JJKS4iCj4gCj4gV2UgbWFkZSBhIGNpcmN1bGFyIGRlcGVuZGVuY3ksIG1pc2ludGVy cHJldGVkIHRoZSBJU0EsIGFuZCBwcm9iYWJseQo+IGltcGxlbWVudGVkIGEgc3Vib3B0aW1hbCBz eXNjYWxsIEFCSSAtLSBwcmVzZXJ2aW5nIHZlY3RvciByZWdpc3RlcnMKPiBzZWVtcyBzdHJpY3Rs eSBiZXR0ZXIuCgpUaGFua3MgZm9yIHByb3ZpZGluZyB0aGVzZSByZWZlcmVuY2VzLiBJdCBkb2Vz IHNlZW0gbGlrZSB0aGlzIGlzCnNvbWV0aGluZyB0aGF0IGFuIE9TIGNhbiBkZWNpZGUgYW5kIGlz IG5vdCBtYW5kYXRlZCBieSB0aGUgSVNBIG9yIHBzQUJJLgoKPiA+IEhvdyBjb21lIHdlIGNvdWxk IGhhdmUgYnJva2VuIGl0IHdpdGggOTY1N2U5YjdkMjUzPwo+IAo+IFdlIGNoYW5nZWQgdGhlIEFC SSBvbmNlLCBzbyBtYXliZSB3ZSBjYW4gY2hhbmdlIGl0IGJhY2s/CgpSZXZlcnRpbmcgOTY1N2U5 YjdkMjUzIHdvdWxkIHNvbHZlIHRoZSBwZXJmb3JtYW5jZSBpc3N1ZSBmb3Igc29tZQppbXBsZW1l bnRhdGlvbnMgdGhhdCBJJ3ZlIGhpZ2hsaWdodGVkIGluIHRoaXMgcGF0Y2guIEhvd2V2ZXIsIEkg YW0KaW50ZXJlc3RlZCB0byBoZWFyIGZyb20gb3RoZXJzIHRoYXQgZmVlbCB0aGUgY3VycmVudCBt YW5kYXRvcnkKY2xvYmJlcmluZyBiZWhhdmlvciBpcyBpZGVhbCBmb3IgdGVzdGluZyAoYW5kIG1h eWJlIHNlY3VyaXR5PykuCgpUaGFua3MsCkRyZXcKCl9fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fCmxpbnV4LXJpc2N2IG1haWxpbmcgbGlzdApsaW51eC1yaXNj dkBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4v bGlzdGluZm8vbGludXgtcmlzY3YK