From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Edgecombe, Rick P" Subject: Re: [PATCH 2/2] arch: Reserve map_shadow_stack() syscall number for all architectures Date: Wed, 13 Sep 2023 22:05:27 +0000 Message-ID: References: <20230911180210.1060504-1-sohil.mehta@intel.com> <20230911180210.1060504-3-sohil.mehta@intel.com> <8b7106881fa227a64b4e951c6b9240a7126ac4a2.camel@intel.com> <29da2af0-5c88-f937-a9b6-db2d5f481321@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1694642733; x=1726178733; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=s+6sAo4gG60eAhwsX/qXmJFoWFy3s62o4HqZz41EHO0=; b=N4zP8jin9RGML6EIvfrI2vlHZ8sHRlmcLC0ijv+Y2stRRlIFHyiBW9u4 8rc2QguC6TIFZQDUXYeEHo2BVRXMlyIhEAVC1e65RzgR/8fjhzaHH03Bm J3lMUask8S2yegP4yCSuBXF2JLaN3Ex/XNI0YVTjMRuxjYf4fjx23nGsR jrzOtfHOJsAP/VJljk7p6aoVydQp6GqFh4Ie+hV0bJ10dqGjdzYKunUvX UAhQ8PVaD5c8p4rX1TeqAC7egAZ2tW2As3sMisF6syrbI5Iw96cqn9J1P WFymG1tv8krPLrCa0QdOEZYQQXpcq+OpEn8OfV97f8vRWr09rsoU++BIg g==; In-Reply-To: <29da2af0-5c88-f937-a9b6-db2d5f481321@intel.com> Content-Language: en-US Content-ID: List-ID: To: "Mehta, Sohil" , "linux-kernel@vger.kernel.org" , "linux-arch@vger.kernel.org" , "linux-api@vger.kernel.org" Cc: "svens@linux.ibm.com" , "catalin.marinas@arm.com" , "schwab@linux-m68k.org" , "brgerst@gmail.com" , "alexander.shishkin@linux.intel.com" , "linux-perf-users@vger.kernel.org" , "x86@kernel.org" , "dalias@libc.org" , "monstr@monstr.eu" , "borntraeger@linux.ibm.com" , "dave.hansen@linux.intel.com" , "christophe.leroy@csgroup.eu" , "mark.rutland@arm.com" , "glaubitz@physik.fu-berlin.de" , "lukas.bulwahn@gmail.com" <> T24gV2VkLCAyMDIzLTA5LTEzIGF0IDEyOjE4IC0wNzAwLCBTb2hpbCBNZWh0YSB3cm90ZToNCj4g T24gOS8xMS8yMDIzIDI6MTAgUE0sIEVkZ2Vjb21iZSwgUmljayBQIHdyb3RlOg0KPiA+IE9uIE1v biwgMjAyMy0wOS0xMSBhdCAxODowMiArMDAwMCwgU29oaWwgTWVodGEgd3JvdGU6DQo+ID4gPiBk aWZmIC0tZ2l0IGEvYXJjaC9wb3dlcnBjL2tlcm5lbC9zeXNjYWxscy9zeXNjYWxsLnRibA0KPiA+ ID4gYi9hcmNoL3Bvd2VycGMva2VybmVsL3N5c2NhbGxzL3N5c2NhbGwudGJsDQo+ID4gPiBpbmRl eCAyMGU1MDU4NmU4YTIuLjI3NjdiOGE0MjYzNiAxMDA2NDQNCj4gPiA+IC0tLSBhL2FyY2gvcG93 ZXJwYy9rZXJuZWwvc3lzY2FsbHMvc3lzY2FsbC50YmwNCj4gPiA+ICsrKyBiL2FyY2gvcG93ZXJw Yy9rZXJuZWwvc3lzY2FsbHMvc3lzY2FsbC50YmwNCj4gPiA+IEBAIC01MzksMyArNTM5LDQgQEAN Cj4gPiA+IMKgNDUwwqDCoMKgwqBub3NwdcKgwqDCoHNldF9tZW1wb2xpY3lfaG9tZV9ub2RlwqDC oMKgwqDCoMKgwqDCoMKgc3lzX3NldF9tZW1wb2xpY3kNCj4gPiA+IF9ob20NCj4gPiA+IGVfbm9k ZQ0KPiA+ID4gwqA0NTHCoMKgwqDCoGNvbW1vbsKgwqBjYWNoZXN0YXTCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgc3lzX2NhY2hlc3RhdA0KPiA+ID4gwqA0NTLC oMKgwqDCoGNvbW1vbsKgwqBmY2htb2RhdDLCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgc3lzX2ZjaG1vZGF0Mg0KPiA+ID4gKzQ1M8KgwqDCoMKgY29tbW9uwqDC oG1hcF9zaGFkb3dfc3RhY2vCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoHN5c19tYXBf c2hhZG93X3N0DQo+ID4gPiBhY2sNCj4gPiANCj4gPiBJIG5vdGljZWQgaW4gcG93ZXJwYywgdGhl IG5vdCBpbXBsZW1lbnRlZCBzeXNjYWxscyBhcmUgbWFudWFsbHkNCj4gPiBtYXBwZWQNCj4gPiB0 byBzeXNfbmlfc3lzY2FsbC4gSXQgYWxzbyBoYXMgc29tZSBzcGVjaWFsIGV4dHJhIHN5c19uaV9z eXNjYWxsKCkNCj4gPiBpbXBsZW1lbnRhdGlvbiBiaXRzIHRvIGhhbmRsZSBib3RoIEFSQ0hfSEFT X1NZU0NBTExfV1JBUFBFUiBhbmQNCj4gPiAhQVJDSF9IQVNfU1lTQ0FMTF9XUkFQUEVSLiBTbyB3 b25kZXJpbmcgaWYgaXQgbWlnaHQgbmVlZCBzcGVjaWFsDQo+ID4gdHJlYXRtZW50LiBEaWQgeW91 IHNlZSB0aG9zZSBwYXJ0cz8NCj4gPiANCj4gDQo+IFRoYW5rcyBmb3IgcG9pbnRpbmcgdGhpcyBv dXQuIFBvd2VycGMgc2VlbXMgdG8gYmUgdW5pcXVlIGluIHRoZWlyDQo+IGhhbmRsaW5nIG9mIG5v dCBpbXBsZW1lbnRlZCBzeXNjYWxscy4gTWF5YmUgaXQncyBiZWNhdXNlIG9mIHRoZWlyDQo+IHNw ZWNpYWwgY2FzaW5nIG9mIHRoZSBBUkNIX0hBU19TWVNDQUxMX1dSQVBQRVIuDQo+IA0KPiBUaGUg Y29kZSBiZWxvdyBpbiBhcmNoL3Bvd2VycGMvaW5jbHVkZS9hc20vc3lzY2FsbHMuaCBzdWdnZXN0 cyB0byBtZQ0KPiB0aGF0IGl0IHNob3VsZCBiZSBzYWZlIHRvIG1hcCBtYXBfc2hhZG93X3N0YWNr KCkgdG8gc3lzX25pX3N5c2NhbGwoKQ0KPiBhbmQNCj4gdGhlIHNwZWNpYWwgaGFuZGxpbmcgd2ls bCBiZSB0YWtlbiBjYXJlIG9mLg0KPiANCj4gI2lmbmRlZiBDT05GSUdfQVJDSF9IQVNfU1lTQ0FM TF9XUkFQUEVSDQo+IGxvbmcgc3lzX25pX3N5c2NhbGwodm9pZCk7DQo+ICNlbHNlDQo+IGxvbmcg c3lzX25pX3N5c2NhbGwoY29uc3Qgc3RydWN0IHB0X3JlZ3MgKnJlZ3MpOw0KPiAjZW5kaWYNCj4g DQo+IEkgZG9uJ3QgcXVpdGUgdW5kZXJzdGFuZCB0aGUgdW5kZXJseWluZyByZWFzb25pbmcgZm9y IGl0IHRob3VnaC4gRG8NCj4geW91DQo+IGhhdmUgYW55IGFkZGl0aW9uYWwgaW5zaWdodCBpbnRv IGhvdyB3ZSBzaG91bGQgaGFuZGxlIHRoaXM/DQo+IA0KPiBJIGFtIHRoaW5raW5nIG9mIGRvaW5n IHRoZSBmb2xsb3dpbmcgaW4gdGhlIG5leHQgaXRlcmF0aW9uIHVubGVzcw0KPiBzb21lb25lIGNo aW1lcyBpbiBhbmQgc2F5cyBvdGhlcndpc2UuDQo+IA0KPiAtLS0gYS9hcmNoL3Bvd2VycGMva2Vy bmVsL3N5c2NhbGxzL3N5c2NhbGwudGJsDQo+ICsrKyBiL2FyY2gvcG93ZXJwYy9rZXJuZWwvc3lz Y2FsbHMvc3lzY2FsbC50YmwNCj4gQEAgLTUzOSw0ICs1MzksNCBAQA0KPiDCoDQ1MMKgwqDCoCBu b3NwdcKgwqAgc2V0X21lbXBvbGljeV9ob21lX25vZGXCoMKgwqDCoMKgwqDCoMKgDQo+IHN5c19z ZXRfbWVtcG9saWN5X2hvbWVfbm9kZQ0KPiDCoDQ1McKgwqDCoCBjb21tb27CoCBjYWNoZXN0YXTC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCBzeXNfY2FjaGVzdGF0 DQo+IMKgNDUywqDCoMKgIGNvbW1vbsKgIGZjaG1vZGF0MsKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgIHN5c19mY2htb2RhdDINCj4gLTQ1M8KgwqDCoCBjb21tb27C oCBtYXBfc2hhZG93X3N0YWNrwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIHN5c19tYXBf c2hhZG93X3N0YWNrDQo+ICs0NTPCoMKgwqAgY29tbW9uwqAgbWFwX3NoYWRvd19zdGFja8KgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCBzeXNfbmlfc3lzY2FsbA0KDQpJdCBtaWdodCBoYXZl IHNvbWV0aGluZyB0byBkbyB3aXRoIHRoYXQgcG93ZXJwYydzIENPTkRfU1lTQ0FMTCgpDQppbXBs ZW1lbnRhdGlvbiBvbmx5IGRlZmluZXMgdGhlIHN0cnVjdCBwdF9yZWdzIHZhcmlldHksIGJ1dCBU QkggSSBnZXQgYQ0KYml0IGxvc3Qgd2hlbiBJIGdldCB0byB0aGUgaW5saW5lIGFzc2VtYmx5IHN5 bWJvbCBkZWZpbml0aW9ucyBwYXJ0cyBhbmQNCmhvdyBpdCBhbGwgdGllcyB0b2dldGhlci4NCg0K RG9pbmcgcG93ZXJwYydzIHZlcnNpb24gYXMgc3lzX25pX3N5c2NhbGwgc2VlbXMgdG8gYmUgY29u c2lzdGVudCBhdA0KbGVhc3QsIGFuZCBtYWtlcyBzZW5zZSB3aXRoIHJlc3BlY3QgdG8gdGhlIGNv ZGUgeW91IHF1b3RlZC4NCg==