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Peter Anvin" , "Metzger, Markus T" , "Luck, Tony" , "Shankar, Ravi V" , LKML Subject: Re: [PATCH 14/15] x86/fsgsbase/64: Support legacy behavior when FS/GS updated by ptracer Thread-Topic: [PATCH 14/15] x86/fsgsbase/64: Support legacy behavior when FS/GS updated by ptracer Thread-Index: AQHTv61cgKpKrSnds0atXlLhYuaZSaPZns+A//+jdICAAP9OgIAAfB0A Date: Wed, 21 Mar 2018 15:11:35 +0000 Message-ID: References: <1521481767-22113-1-git-send-email-chang.seok.bae@intel.com> <1521481767-22113-15-git-send-email-chang.seok.bae@intel.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/10.b.0.180311 x-originating-ip: [10.254.180.102] Content-Type: text/plain; charset="utf-8" Content-ID: <0455AF43AD50F84A866F3782AA86928B@intel.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gMy8yMC8xOCwgMTc6NDcsICJBbmR5IEx1dG9taXJza2kiIDxsdXRvQGtlcm5lbC5vcmc+IHdy b3RlOg0KPiAgICBJZiBJJ3ZlIHVuZGVyc3Rvb2QgYWxsIHlvdXIgZW1haWxzIHJpZ2h0LCB3aGVu IHlvdSBsb29rZWQgYXQgZXhpc3RpbmcNCj4gICAgcHRyYWNlIHVzZXJzLCB5b3UgZm91bmQgdGhh dCBhbGwgb2YgdGhlbSB0aGF0IHdyaXRlIHRvIGdzIGFuZC9vcg0KPiAgICBnc19iYXNlIGRvIGl0 IGFzIHBhcnQgb2YgYSBwdXRyZWdzIGNhbGwgdGhhdCB3cml0ZXMgdGhlbSBhdCB0aGUgc2FtZQ0K PiAgICB0aW1lLiAgSWYgc28sIHRoZW4geW91ciBwYXRjaCBkb2VzIGV4YWN0bHkgdGhlIHNhbWUg dGhpbmcgdGhhdCBteSBvbGQNCj4gICAgcGF0Y2hlcyBkaWQsIGJ1dCB5b3VyIHBhdGNoIGlzIG11 Y2ggbW9yZSBjb21wbGljYXRlZC4gIFNvIHdoeSBkaWQgeW91DQo+ICAgIGFkZCBhbGwgdGhhdCBj b21wbGV4aXR5Pw0KDQpXaGF0IGlzIHRyaWVkIHRvIGJlIHByb3ZpZGVkIGlzIGJhY2t3YXJkIGNv bXBhdGliaWxpdHkgYnkgZW11bGF0aW5nIA0K4oCcbW92IGdzIChmcykg4oCm4oCdIHdoZW4gaW5k ZXggaXMgb25seSBjaGFuZ2VkIGFuZCBwcmVzZXJ2ZSBhIChnaXZlbikgYmFzZSB2YWx1ZSANCmlu IG90aGVyIGNhc2VzLiBJZiBwdHJhY2VyIGNoYW5nZXMgR1MgaW5kZXggYmV0d2VlbiBQVFJBQ0Vf R0VUUkVHUyANCmFuZCBQVFJBQ0VfU0VUUkVHLCB0aGUgdHJhY2VlIGRvZXMgbm90IGhhdmUgR1Mg YmFzZSBmcm9tIEdEVC9MRFQgDQp3aGVuIGl0IHJlc3VtZXMsIHdpdGggdGhlIHBhdGNoIFsxXS4g VGFza+KAmXMgR1MgYmFzZSBpcyBwcmVzZXJ2ZWQgYXQgc2NoZWR1bGUtaW4sIA0Kd2hlbiBGU0dT QkFTRSBlbmFibGVkLg0KDQpDb2RlLXdpc2UsIG5vIGNsZWFuIGltcGxlbWVudGF0aW9uIHdhcyBm b3VuZCBmcm9tIHRoZSBleGlzdGluZyBwdXRyZWcoKS4gDQpwdXRyZWcoKSBnb2VzIGluIGFuIGlu ZGVwZW5kZW50bHkgaXNvbGF0ZWQgd2F5LCB3aGlsZSB0aGUgYmFja3dhcmQgDQpjb21wYXRpYmls aXR5IG5lZWRzIHNvbWV0aGluZyB0byBwdXQgb25lIGZyb20gdGhlIG90aGVyIHZhbHVlLiANCkkg d291bGQgbGlrZSB0byBrbm93IGEgYmV0dGVyIHdheSB3aXRob3V0IGludHJvZHVjaW5nIHB1dHJl Z3MoKSAoYW5kIA0KcmV2ZXJzZWx5IHNldHRpbmcgdGhlbSkuDQoNClsxXSBodHRwczovL2dpdC5r ZXJuZWwub3JnL3B1Yi9zY20vbGludXgva2VybmVsL2dpdC9sdXRvL2xpbnV4LmdpdC9jb21taXQv P2g9eDg2L2ZzZ3NiYXNlJmlkPWNmYWY5OTExYjg4OTMwY2E2ZTRkMDE3M2ZlOGE1OGQyZWE0ZWU2 ZmINCg0K