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Peter Anvin" , xen-devel@lists.xenproject.org, x86@kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org References: <20220926141849.21805-1-jgross@suse.com> <20220926141849.21805-4-jgross@suse.com> From: Juergen Gross In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------1MXODAaqPWPZ0uy8iXtWpCDv" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------1MXODAaqPWPZ0uy8iXtWpCDv Content-Type: multipart/mixed; boundary="------------Kgf54Q0ZcCQxSVy0QutR0C3S"; protected-headers="v1" From: Juergen Gross To: Jan Beulich Cc: Jonathan Corbet , Boris Ostrovsky , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , xen-devel@lists.xenproject.org, x86@kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Message-ID: <7477c714-4aa3-5fea-47db-01ccf91f3d6e@suse.com> Subject: Re: [PATCH 3/3] xen/pv: support selecting safe/unsafe msr accesses References: <20220926141849.21805-1-jgross@suse.com> <20220926141849.21805-4-jgross@suse.com> In-Reply-To: --------------Kgf54Q0ZcCQxSVy0QutR0C3S Content-Type: multipart/mixed; boundary="------------ErEI6mST0vA9KC03NyB6XuvU" --------------ErEI6mST0vA9KC03NyB6XuvU Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 T24gMjYuMDkuMjIgMTc6MjMsIEphbiBCZXVsaWNoIHdyb3RlOg0KPiBPbiAyNi4wOS4yMDIy IDE2OjE4LCBKdWVyZ2VuIEdyb3NzIHdyb3RlOg0KPj4gLS0tIGEvYXJjaC94ODYveGVuL0tj b25maWcNCj4+ICsrKyBiL2FyY2gveDg2L3hlbi9LY29uZmlnDQo+PiBAQCAtOTIsMyArOTIs MTIgQEAgY29uZmlnIFhFTl9ET00wDQo+PiAgIAlzZWxlY3QgWDg2X1gyQVBJQyBpZiBYRU5f UFZIICYmIFg4Nl82NA0KPj4gICAJaGVscA0KPj4gICAJICBTdXBwb3J0IHJ1bm5pbmcgYXMg YSBYZW4gRG9tMCBndWVzdC4NCj4+ICsNCj4+ICtjb25maWcgWEVOX1BWX01TUl9TQUZFDQo+ PiArCWJvb2wgIkFsd2F5cyB1c2Ugc2FmZSBNU1IgYWNjZXNzZXMgaW4gUFYgZ3Vlc3RzIg0K Pj4gKwlkZWZhdWx0IHkNCj4gDQo+IElzIHRoZXJlIGFueSB0aW1lIGxpbmUgd2hlbiB0aGlz IGRlZmF1bHQgd2lsbCBjaGFuZ2UsIHBlcmhhcHMgZmlyc3QgdG8NCj4gREVCVUcgYW5kIGxh dGVyIHRvIE4/DQoNCkknbSBub3Qgc3VyZS4gSSBkaWQgYW4gaW5pdGlhbCB0ZXN0IHdpdGgg dGhlIHNhZmUgdmFyaWFudHMgZGlzYWJsZWQgaW4gZG9tMA0KYW5kIGl0IGp1c3Qgd29ya2Vk Lg0KDQpJJ20gbm90IHN1cmUgd2Ugd2FudCBhbiBpbnRlcm1lZGlhdGUgc3RlcCwgYXMgaW4g Y3JpdGljYWwgY2FzZXMgdGhlIHVzZXIgY2FuDQpzdGlsbCB1c2UgdGhlIGJvb3QgcGFyYW1l dGVyLg0KDQo+IA0KPj4gQEAgLTEwMTAsMjIgKzEwMjAsMTYgQEAgc3RhdGljIGludCB4ZW5f d3JpdGVfbXNyX3NhZmUodW5zaWduZWQgaW50IG1zciwgdW5zaWduZWQgaW50IGxvdywNCj4+ ICAgDQo+PiAgIHN0YXRpYyB1NjQgeGVuX3JlYWRfbXNyKHVuc2lnbmVkIGludCBtc3IpDQo+ PiAgIHsNCj4+IC0JLyoNCj4+IC0JICogVGhpcyB3aWxsIHNpbGVudGx5IHN3YWxsb3cgYSAj R1AgZnJvbSBSRE1TUi4gIEl0IG1heSBiZSB3b3J0aA0KPj4gLQkgKiBjaGFuZ2luZyB0aGF0 Lg0KPj4gLQkgKi8NCj4+ICAgCWludCBlcnI7DQo+PiAgIA0KPj4gLQlyZXR1cm4geGVuX3Jl YWRfbXNyX3NhZmUobXNyLCAmZXJyKTsNCj4+ICsJcmV0dXJuIHhlbl9kb19yZWFkX21zciht c3IsIHhlbl9tc3Jfc2FmZSA/ICZlcnIgOiBOVUxMKTsNCj4+ICAgfQ0KPiANCj4gV2hlbiB3 ZSB3ZXJlIHRhbGtpbmcgYXQgdGhlIHNlc3Npb24sIEkgdGhpbmsgSSBzYWlkIHRoYXQgYXQg bGVhc3QgdGhlcmUNCj4gaXMgbm8gdW5pbml0aWFsaXplZCB2YWx1ZSBiZWluZyBwYXNzZWQg YmFjay4gQnV0IEkgZGlkIGxvb2sgYXQNCj4geGVuX3JlYWRfbXNyX3NhZmUoKSBvbmx5LCB3 aGljaCBpbmRlZWQgaXMgb2theS4gV2hlcmVhcw0KPiBuYXRpdmVfcmVhZF9tc3Jfc2FmZSgp IGlzbid0IChub3IgaXMgbmF0aXZlX3JlYWRfbXNyKCkgYWZhaWN0KSwgc28gSQ0KPiB0aGlu ayBwYXJ0IG9mIHRoaXMgc2VyaWVzIHNob3VsZCBiZSB0byBhbHNvIGVsaW1pbmF0ZSB0aGUg dW5kZWZpbmVkLQ0KPiBuZXNzIGZyb20gdGhpcyBjb2RlIHBhdGggKHBvc3NpYmxlIG5vdyBv bmx5IHdoZW4geGVuX21zcl9zYWZlIGlzIHRydWUsDQo+IGJ1dCBhcyBwZXIgYWJvdmUgdGhh dCdsbCBiZSB0aGUgZGVmYXVsdCBhdCBsZWFzdCBmb3Igc29tZSB0aW1lKSwgd2hlcmUNCj4g dGhlIGNhbGxlciBoYXMgbm8gd2F5IHRvIGtub3cgdGhhdCBpdCBzaG91bGRuJ3QgbG9vayBh dCB0aGUgdmFsdWUuDQoNCkkgY2FuIGFkZCB0aGF0Lg0KDQoNCkp1ZXJnZW4NCg== --------------ErEI6mST0vA9KC03NyB6XuvU Content-Type: application/pgp-keys; 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