From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Lutomirski Subject: Re: [PATCH v5 4/9] x86/traps: Enable all exception handler callbacks early Date: Sun, 3 Apr 2016 06:22:10 -0700 Message-ID: References: <20fc047d926150cb08cb9b9f2923519b07ec1a15.1459605520.git.luto@kernel.org> <20160402185227.GB2538@pd.tnic> <20160402205248.GD2538@pd.tnic> <20160403080737.GA19007@pd.tnic> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20160403080737.GA19007@pd.tnic> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Borislav Petkov Cc: KVM list , Peter Zijlstra , Linus Torvalds , X86 ML , "linux-kernel@vger.kernel.org" , xen-devel , Andy Lutomirski , "H. Peter Anvin" , Paolo Bonzini , Andrew Morton , Arjan van de Ven List-Id: xen-devel@lists.xenproject.org T24gU3VuLCBBcHIgMywgMjAxNiBhdCAxOjA3IEFNLCBCb3Jpc2xhdiBQZXRrb3YgPGJwQGFsaWVu OC5kZT4gd3JvdGU6Cj4gT24gU2F0LCBBcHIgMDIsIDIwMTYgYXQgMTA6NTI6NDhQTSArMDIwMCwg Qm9yaXNsYXYgUGV0a292IHdyb3RlOgo+PiBPbiBTYXQsIEFwciAwMiwgMjAxNiBhdCAwMToxNjow N1BNIC0wNzAwLCBBbmR5IEx1dG9taXJza2kgd3JvdGU6Cj4+ID4gSSBoYXZlIG5vIGlkZWEgd2h5 IGl0IHdhcyBleHBsaWNpdGx5IHVuc3VwcG9ydGVkLCBidXQgSSdtIGd1ZXNzaW5nIGl0Cj4+ID4g d2FzIGp1c3QgdG8gYXZvaWQgZHVwbGljYXRpbmcgdGhlIGNvZGUuICBFYXJseSAiZXh0IiB1YWNj ZXNzIGZhaWx1cmVzCj4+ID4gYXJlIGNlcnRhaW5seSBub3QgZ29pbmcgdG8gd29yaywgYnV0IEkg ZG9uJ3QgdGhpbmsgdGhpcyBpcyBhIHByb2JsZW0KPj4gPiAtLSB0aGVyZSdzIG5vIHVzZXJzcGFj ZSBiZWZvcmUgdHJhcF9pbml0IHJ1bnMsIHNvIGhvdyBleGFjdGx5IGlzIGFuCj4+ID4gImV4dCIg dWFjY2VzcyBnb2luZyB0byBoYXBwZW4gaW4gdGhlIGZpcnN0IHBsYWNlPwo+PiA+Cj4+ID4gSW4g YW55IGV2ZW50LCBpZiBpdCBkaWQgaGFwcGVuIGluIG9sZGVyIGtlcm5lbHMsIGl0IHdvdWxkIGhh dmUKPj4gPiBpbW1lZGlhdGVseSBwYW5pY2tlZCBkdWUgdG8gdGhhdCBjb2RlLiAgQXQgbGVhc3Qg d2l0aCBteSBjb2RlIGl0IGp1c3QKPj4gPiBtaWdodCBtYW5hZ2UgdG8gRUZBVUxUIGNvcnJlY3Rs eS4KPj4KPj4gWWVhaCwgSSB3YXMgd29uZGVyaW5nIHdoYXQgdGhhdCBlYXJseSB0aGluZyBtZWFu dC4KPj4KPj4gTGludXMgb3IgdGlwIGd1eXMgcHJvYmFibHkgcmVtZW1iZXIgd2hhdCB0aGlzIHdo b2xlIGRlYWwgd2l0aCBlYXJseQo+PiB1YWNjZXNzIHdhcyBhYm91dC4gSSdsbCB0cnkgdG8gZG8g c29tZSBnaXQgYXJjaGVvbG9neSB0b21vcnJvdy4KPgo+IFllcCwganVzdCBhcyBJIHN1c3BlY3Rl ZDoKPgo+IDZhMWVhMjc5YzIxMCAoIng4NiwgZXh0YWJsZTogQWRkIGVhcmx5X2ZpeHVwX2V4Y2Vw dGlvbigpIikKPgo+IEFwcGFyZW50bHksIHRocmVhZF9pbmZvIG1pZ2h0IG5vdCBoYXZlIGJlZW4g c2V0dXAgeWV0LiBJJ20gZ3Vlc3NpbmcgdGhlCj4gaW50ZW50aW9uIGJlaGluZCB0aGlzIG5vLXVh Y2Nlc3MtZml4dXAtZWFybHkgaXMgdG8gbm90IGV2ZW4gYXR0ZW1wdCBhbnkKPiBmaXh1cCBkdWUg dG8gc3R1ZmYgKnByb2JhYmx5KiBub3QgaW5pdGlhbGl6ZWQgeWV0IGFuZCBzbyB0aGUgc2FmZXIg dGhpbmcKPiB3b3VsZCBiZSB0byBwYW5pYyBpbnN0ZWFkLgo+Cj4gSSdtIHdvbmRlcmluZyB3aGV0 aGVyIG1ha2luZyBpdCB0cnkgdG8gRUZBVUxUIGNvcnJlY3RseSBpcyB0aGUgcmlnaHQKPiB0aGlu ZyB0byBkby4uLiBXZSdyZSBjZXJ0YWlubHkgbW9yZSBjb25zZXJ2YXRpdmUgaWYgd2UgcGFuaWMg YW5kIG5vdAo+IGFsbG93IHNvbWUgc2lsZW50bHkgZmFpbGVkIGF0dGVtcHQgYXQgcmVjb3Zlcnkg d2hpY2ggbG9va3Mgc3VjY2Vzc2Z1bCwKPiB0byBjb250aW51ZS4KPgo+IGhwYSwgdGhvdWdodHM/ CgpJIGRvbid0IHRoaW5rIHRoaXMgbWF0dGVycyBtdWNoLiAgVGhlcmUgYXJlbid0IG1hbnkgdXNl cnMgb2YgdGhpcwptZWNoYW5pc20gaW4gdGhlIHRyZWU6CgouL2FyY2gveDg2L2tlcm5lbC9zaWdu YWwuYzogICAgZ2V0X3VzZXJfdHJ5IHsKLi9hcmNoL3g4Ni9rZXJuZWwvc2lnbmFsLmM6ICAgIHB1 dF91c2VyX3RyeSB7Ci4vYXJjaC94ODYva2VybmVsL3NpZ25hbC5jOiAgICBwdXRfdXNlcl90cnkg ewouL2FyY2gveDg2L2tlcm5lbC9zaWduYWwuYzogICAgcHV0X3VzZXJfdHJ5IHsKLi9hcmNoL3g4 Ni9rZXJuZWwvc2lnbmFsLmM6ICAgIHB1dF91c2VyX3RyeSB7Ci4vYXJjaC94ODYva2VybmVsL3Np Z25hbF9jb21wYXQuYzogICAgcHV0X3VzZXJfdHJ5IHsKLi9hcmNoL3g4Ni9rZXJuZWwvc2lnbmFs X2NvbXBhdC5jOiAgICBnZXRfdXNlcl90cnkgewouL2FyY2gveDg2L2tlcm5lbC92bTg2XzMyLmM6 ICAgIHB1dF91c2VyX3RyeSB7Ci4vYXJjaC94ODYva2VybmVsL3ZtODZfMzIuYzogICAgZ2V0X3Vz ZXJfdHJ5IHsKLi9hcmNoL3g4Ni9pYTMyL2lhMzJfc2lnbmFsLmM6ICAgIGdldF91c2VyX3RyeSB7 Ci4vYXJjaC94ODYvaWEzMi9pYTMyX3NpZ25hbC5jOiAgICBwdXRfdXNlcl90cnkgewouL2FyY2gv eDg2L2lhMzIvaWEzMl9zaWduYWwuYzogICAgcHV0X3VzZXJfdHJ5IHsKLi9hcmNoL3g4Ni9pYTMy L2lhMzJfc2lnbmFsLmM6ICAgIHB1dF91c2VyX3RyeSB7Ci4vYXJjaC94ODYvaW5jbHVkZS9hc20v dWFjY2Vzcy5oOiAqIHtnZXR8cHV0fV91c2VyX3RyeSBhbmQgY2F0Y2gKLi9hcmNoL3g4Ni9pbmNs dWRlL2FzbS91YWNjZXNzLmg6ICogZ2V0X3VzZXJfdHJ5IHsKLi9hcmNoL3g4Ni9pbmNsdWRlL2Fz bS91YWNjZXNzLmg6I2RlZmluZSBnZXRfdXNlcl90cnkgICAgICAgIHVhY2Nlc3NfdHJ5Ci4vYXJj aC94ODYvaW5jbHVkZS9hc20vdWFjY2Vzcy5oOiNkZWZpbmUgcHV0X3VzZXJfdHJ5ICAgICAgICB1 YWNjZXNzX3RyeQoKSSBkb24ndCBzZWUgaG93IHdlIGNvdWxkIGdldCB0byB0aGF0IGNvZGUgaW4g dGhlIGZpcnN0IHBsYWNlIHdpdGhvdXQKY3VycmVudF90aHJlYWRfaW5mbygpIHdvcmtpbmcuCgpJ ZiB3ZSBjYW4gZXZlciBjb252aW5jZSBnY2MgdG8gZG8ganVtcCBsYWJlbHMgcHJvcGVybHkgZm9y IHVhY2Nlc3MsIGl0CndvdWxkIHByb2JhYmx5IGJlIGJldHRlciB0byBqdXN0IGRlbGV0ZSBhbGwg dGhhdCBjb2RlLgoKLS1BbmR5CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3Jn Cmh0dHA6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=