From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Torvalds Subject: Re: [PATCH v4 2/5] x86/msr: Carry on after a non-"safe" MSR access fails without !panic_on_oops Date: Mon, 14 Mar 2016 11:40:58 -0700 Message-ID: References: <20160314120202.GD15800@pd.tnic> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Andy Lutomirski Cc: KVM list , Peter Zijlstra , X86 ML , "linux-kernel@vger.kernel.org" , xen-devel , Borislav Petkov , Andy Lutomirski , Paolo Bonzini , Andrew Morton , Arjan van de Ven List-Id: xen-devel@lists.xenproject.org T24gTW9uLCBNYXIgMTQsIDIwMTYgYXQgMTE6MjQgQU0sIEFuZHkgTHV0b21pcnNraSA8bHV0b0Bh bWFjYXBpdGFsLm5ldD4gd3JvdGU6Cj4KPiBUaGUgY29kZSBpbiBteSBxdWV1ZSBpcywgbGl0ZXJh bGx5Ogo+Cj4gYm9vbCBleF9oYW5kbGVyX3JkbXNyX3Vuc2FmZShjb25zdCBzdHJ1Y3QgZXhjZXB0 aW9uX3RhYmxlX2VudHJ5ICpmaXh1cCwKPiAgICAgICAgICAgICAgICAgIHN0cnVjdCBwdF9yZWdz ICpyZWdzLCBpbnQgdHJhcG5yKQo+IHsKPiAgICAgV0FSTl9PTkNFKDEsICJ1bmNoZWNrZWQgTVNS IGFjY2VzcyBlcnJvcjogUkRNU1IgZnJvbSAweCV4IiwKPiAgICAgICAgICAgKHVuc2lnbmVkIGlu dClyZWdzLT5jeCk7Cj4KPiAgICAgLyogUHJldGVuZCB0aGF0IHRoZSByZWFkIHN1Y2NlZWRlZCBh bmQgcmV0dXJuZWQgMC4gKi8KPiAgICAgcmVncy0+aXAgPSBleF9maXh1cF9hZGRyKGZpeHVwKTsK PiAgICAgcmVncy0+YXggPSAwOwo+ICAgICByZWdzLT5keCA9IDA7Cj4gICAgIHJldHVybiB0cnVl Owo+IH0KPiBFWFBPUlRfU1lNQk9MKGV4X2hhbmRsZXJfcmRtc3JfdW5zYWZlKTsKCkkgZ3Vlc3Mg SSBjYW4gbGl2ZSB3aXRoIHRoaXMsIGFzIGxvbmcgYXMgd2UgYWxzbyBleHRlbmQgdGhlCmVhcmx5 LWZhdWx0IGhhbmRsaW5nIHRvIHdvcmsgd2l0aCB0aGUgc3BlY2lhbCBleGNlcHRpb24gaGFuZGxl cnMuCgpBbmQgYXMgbG9uZyBhcyBwZW9wbGUgc3RhcnQgdW5kZXJzdGFuZGluZyB0aGF0IGtpbGxp bmcgdGhlIG1hY2hpbmUgaXMKYSBiYWQgYmFkIGJhZCB0aGluZy4gSXQncyBhIGRlYnVnZ2luZyBu aWdodG1hcmUuCgogICAgICAgICAgICAgICBMaW51cwoKX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxA bGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK