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Peter Anvin" , "the arch/x86 maintainers" , Linux Kernel Mailing List , linux-mm , "Andy Lutomirski" , Dave Hansen , "Josh Poimboeuf" , Juergen Gross , "Peter Zijlstra" , Borislav Petkov , Jiri Kosina , Boris Ostrovsky , Brian Gerst , Denys Vlasenko , Eduardo Valentin , Greg KH , Will Deacon , "Liguori, Anthony" , Daniel Gruss , Hugh Dickins , Kees Cook , Andrea Arcangeli , Waiman Long , Pavel Machek Subject: RE: [PATCH 09/31] x86/entry/32: Leave the kernel via trampoline stack Thread-Topic: [PATCH 09/31] x86/entry/32: Leave the kernel via trampoline stack Thread-Index: AQHTod8GduOBYzH6Y06ZOLi7EtO7oqOdxTWQ Date: Sat, 10 Feb 2018 15:41:06 +0000 Message-ID: References: <1518168340-9392-1-git-send-email-joro@8bytes.org> <1518168340-9392-10-git-send-email-joro@8bytes.org> <20180209190226.lqh6twf7thfg52cq@suse.de> <20180209192515.qvvixkn5rz77oz6l@suse.de> In-Reply-To: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.33] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-Outbound-IP: 156.67.243.126 X-Env-From: David.Laight@ACULAB.COM X-Proto: esmtps X-Revdns: X-HELO: AcuMS.aculab.com X-TLS: TLSv1.2:ECDHE-RSA-AES256-SHA384:256 X-Authenticated_ID: X-PolicySMART: 3396946, 3397078 X-Virus-Status: Scanned by VirusSMART (c) X-Virus-Status: Scanned by VirusSMART (s) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogTGludXMgVG9ydmFsZHMNCj4gU2VudDogMDkgRmVicnVhcnkgMjAxOCAxOTo0OQ0KLi4u DQo+IEkgdGhpbmsgdGhlIGluc3RydWN0aW9uIHNjaGVkdWxpbmcgZW5kcyB1cCBiYXNpY2FsbHkg YnJlYWtpbmcgYXJvdW5kDQo+IG1pY3JvY29kZWQgaW5zdHJ1Y3Rpb25zLCB3aGljaCBpcyB3aHkg eW91J2xsIGdldCBzb21ldGhpbmcgbGlrZSAxMituDQo+IGN5Y2xlcyBmb3IgInJlcCBtb3ZzIiBv biBzb21lIHVhcmNocywgYnV0IGF0IHRoYXQgcG9pbnQgaXQncyBwcm9iYWJseQ0KPiBtb3N0bHkg aW4gdGhlIG5vaXNlIGNvbXBhcmVkIHRvIGFsbCB0aGUgb3RoZXIgbmFzdHkgUFRJIHRoaW5ncy4N Cg0KT3IgNDgrbiBvbiBQNA0KDQo+IFlvdSB3b24ndCBzZWUgYW55IG9mIHRoZSBfcmVhbF8gYWR2 YW50YWdlcyAod2hpY2ggYXJlIGFib3V0IG1vdmluZw0KPiBjYWNoZWxpbmVzIGF0IGEgdGltZSks IHNvIHdpdGggc21hbGxpc2ggY29waWVzIHlvdSByZWFsbHkgb25seSBzZWUgdGhlDQo+IGRvd25z aWRlcyBvZiAicmVwIG1vdnMiLCB3aGljaCBpcyBtYWlubHkgdGhhdCBpbnN0cnVjdGlvbiBzY2hl ZHVsaW5nDQo+IGhpY2t1cCB3aXRoIGFueSBtaW9jcm9jb2RlLg0KDQpJIHRob3VnaHQgdGhhdCB0 aGUgaGFyZHdhcmUgb3B0aW1pc2F0aW9uIGZvciAncmVwIG1vdnNiJyBvbiByZWNlbnQNCkludGVs IGNwdXMgZ2VuZXJhdGVkIHdvcmQgc2l6ZWQgbWVtb3J5IGFjY2Vzc2VzIGV2ZW4gZm9yIG1pc2Fs aWduZWQNCnNob3J0IHRyYW5zZmVycy4NCk15IHRob3VnaHRzIHdlcmUgdGhhdCB0aGV5J2QgaW1w bGVtZW50ZWQgYSBjYWNoZSBsaW5lIHNpemVkIGJhcnJlbA0Kc2hpZnQgcmVnaXN0ZXIuDQpJZiB0 aGF0IGlzbid0IHRydWUgdGhlbiB1c2luZyBpdCBmb3IgYWxsIG1lbWNweSgpIGlzIHByb2JhYmx5 IHN0dXBpZA0KKGJ1dCBub3QgYXMgc3R1cGlkIGFzIGRvaW5nIGFsbCBtZW1jcHkgYmFja3dhcmRz ISkNCg0KCURhdmlkDQoNCg0K