From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roger Pau =?utf-8?B?TW9ubsOp?= Subject: Re: [PATCH 1/4] x86/IRQ: don't keep EOI timer running without need Date: Thu, 16 May 2019 13:03:44 +0200 Message-ID: <20190516110344.mfifufhzrd4cjdlx@Air-de-Roger> References: <5CD2CDEC020000780022CC95@prv1-mh.provo.novell.com> <5CD2CFA1020000780022CCA6@prv1-mh.provo.novell.com> <20190516103238.pm6ducegde3xw5wz@Air-de-Roger> <5CDD406E020000780022F906@prv1-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hREB3-0007ot-8U for xen-devel@lists.xenproject.org; Thu, 16 May 2019 11:03:57 +0000 Content-Disposition: inline In-Reply-To: <5CDD406E020000780022F906@prv1-mh.provo.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Jan Beulich Cc: Stefano Stabellini , Wei Liu , Konrad Rzeszutek Wilk , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , Julien Grall , xen-devel List-Id: xen-devel@lists.xenproject.org T24gVGh1LCBNYXkgMTYsIDIwMTkgYXQgMDQ6NTA6MjJBTSAtMDYwMCwgSmFuIEJldWxpY2ggd3Jv dGU6Cj4gPj4+IE9uIDE2LjA1LjE5IGF0IDEyOjMyLCA8cm9nZXIucGF1QGNpdHJpeC5jb20+IHdy b3RlOgo+ID4gT24gV2VkLCBNYXkgMDgsIDIwMTkgYXQgMDY6NDY6MjVBTSAtMDYwMCwgSmFuIEJl dWxpY2ggd3JvdGU6Cj4gPj4gVGhlIHRpbWVyIG5lZWRzIHRvIHJlbWFpbiBhY3RpdmUgb25seSB1 bnRpbCBhbGwgcGVuZGluZyBJUlEgaW5zdGFuY2VzCj4gPj4gaGF2ZSBzZWVuIEVPSXMgZnJvbSB0 aGVpciByZXNwZWN0aXZlIGRvbWFpbnMuIFN0b3AgaXQgd2hlbiB0aGUgaW4tZmxpZ2h0Cj4gPj4g Y291bnQgaGFzIHJlYWNoZWQgemVybyBpbiBkZXNjX2d1ZXN0X2VvaSgpLiBOb3RlIHRoYXQgdGhp cyBpcyByYWNlIGZyZWUKPiA+PiAod2l0aCBfX2RvX0lSUV9ndWVzdCgpKSwgYXMgdGhlIElSUSBk ZXNjcmlwdG9yIGxvY2sgaXMgYmVpbmcgaGVsZCBhdAo+ID4+IHRoYXQgcG9pbnQuCj4gPj4gCj4g Pj4gQWxzbyBwdWxsIHVwIHN0b3BwaW5nIG9mIHRoZSB0aW1lciBpbiBfX2RvX0lSUV9ndWVzdCgp IGl0c2VsZjogSW5zdGVhZAo+ID4+IG9mIHN0b3BwaW5nIGl0IGltbWVkaWF0ZWx5IGJlZm9yZSBy ZS1zZXR0aW5nLCBzdG9wIGl0IGFzIHNvb24gYXMgd2UndmUKPiA+PiBtYWRlIGl0IHBhc3QgYW55 IGVhcmx5IHJldHVybnMgZnJvbSB0aGUgZnVuY3Rpb24gKGFuZCBoZW5jZSB3ZSdyZSBzdXJlCj4g Pj4gaXQnbGwgZ2V0IHNldCBhZ2FpbikuCj4gPj4gCj4gPj4gRmluYWxseSBiYWlsIGZyb20gdGhl IGFjdHVhbCB0aW1lciBoYW5kbGVyIGluIGNhc2Ugd2UgZmluZCB0aGUgdGltZXIKPiA+PiBhbHJl YWR5IGFjdGl2ZSBhZ2FpbiBieSB0aGUgdGltZSB3ZSd2ZSBtYW5hZ2VkIHRvIGFjcXVpcmUgdGhl IElSUQo+ID4+IGRlc2NyaXB0b3IgbG9jay4gV2l0aG91dCB0aGlzIHdlIG1heSBmb3JjaWJseSBF T0kgYW4gSVJRIGltbWVkaWF0ZWx5Cj4gPj4gYWZ0ZXIgaXQgZ290IHNlbnQgdG8gYSBndWVzdC4g Rm9yIHRoaXMsIHRpbWVyX2lzX2FjdGl2ZSgpIGdldHMgc3BsaXQgb3V0Cj4gPj4gb2YgYWN0aXZl X3RpbWVyKCksIGRlbGliZXJhdGVseSBtb3ZpbmcganVzdCBvbmUgb2YgdGhlIHR3byBBU1NFUlQo KXMgKHRvCj4gPj4gYWxsb3cgdGhlIGZ1bmN0aW9uIHRvIGJlIHVzZWQgYWxzbyBvbiBhIG5ldmVy IGluaXRpYWxpemVkIHRpbWVyKS4KPiA+IAo+ID4gQUZBSUNUIHRpbWVyX2lzX2FjdGl2ZSBpcyBl eGNsdXNpdmVseSB1c2VkIGluIGlycV9ndWVzdF9lb2lfdGltZXJfZm4sCj4gPiB3aGljaCBtdXN0 IGhhdmUgaW5pdGlhbGl6ZWQgdGhlIHRpbWVyIGluIG9yZGVyIGZvcgo+ID4gaXJxX2d1ZXN0X2Vv aV90aW1lcl9mbiB0byBiZSBjYWxsZWQsIGFuZCBoZW5jZSBJJ20gbm90IHN1cmUgd2h5IHlvdQo+ ID4gbmVlZCB0byBiZSBhYmxlIHRvIGNhbGwgdGltZXJfaXNfYWN0aXZlIHdpdGggYW4gdW5pbml0 aWFsaXplZCB0aW1lci4KPiAKPiBJdCdzIG5vdCBuZWVkZWQgaGVyZSwgYnV0IEkgY29uc2lkZXIg dGhpcyB1c2VmdWwgYmVoYXZpb3Igd2hlbiB1c2VkCj4gb3V0c2lkZSBvZiB0aGUgc3BlY2lmaWMg dGltZXIncyBoYW5kbGVyLgo+IAo+ID4gSXMgdGhpcyBtYXliZSB1c2VkIGJ5IG90aGVyIHBhdGNo ZXM/Cj4gCj4gTm9uZSB0aGF0IEkgd291bGQgaGF2ZSBpbiB0aGUgd29ya3MuCgpUaGVuIElNTyBJ IHdvdWxkIHJhdGhlciBtYWtlIHRpbWVyX2lzX2FjdGl2ZSBhIHJlcGxhY2VtZW50IGZvcgphY3Rp dmVfdGltZXIgKG9yIGp1c3QgbW92ZSBhY3RpdmVfdGltZXIgdG8gdGhlIGhlYWRlcikgaWYgdGhl cmUncyBubwp1c2VyIHRoYXQgY2FuIGNhbGwgdGltZXJfaXNfYWN0aXZlIHdpdGggYW4gdW5pbml0 aWFsaXplZCB0aW1lci4gSWU6IEkKd291bGQga2VlcCB0aGUgYXNzZXJ0cyBhcyByZXN0cmljdGl2 ZSBhcyBwb3NzaWJsZSB1bmxlc3MgdGhlcmUncyBhCnVzZXIgdGhhdCByZXF1aXJlcyBsZXNzIHJl c3RyaWN0aXZlIGFzc2VydGlvbnMuCgpBbnl3YXksIHRoZSBjaGFuZ2UgaXMgYW4gaW1wcm92ZW1l bnQsIHNvIHdpdGggb3Igd2l0aG91dCB0aGF0IGNoYW5nZWQ6CgpSZXZpZXdlZC1ieTogUm9nZXIg UGF1IE1vbm7DqSA8cm9nZXIucGF1QGNpdHJpeC5jb20+CgpUaGFua3MuCgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0 Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qu b3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=3.0 tests=FROM_EXCESS_BASE64, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_NEOMUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 60073C04AAF for ; 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charset="UTF-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Message-ID: <20190516110344.p5oOYVdO-G7glufommiYz0jPdKyXeNM177SVHJpl0F0@z> T24gVGh1LCBNYXkgMTYsIDIwMTkgYXQgMDQ6NTA6MjJBTSAtMDYwMCwgSmFuIEJldWxpY2ggd3Jv dGU6Cj4gPj4+IE9uIDE2LjA1LjE5IGF0IDEyOjMyLCA8cm9nZXIucGF1QGNpdHJpeC5jb20+IHdy b3RlOgo+ID4gT24gV2VkLCBNYXkgMDgsIDIwMTkgYXQgMDY6NDY6MjVBTSAtMDYwMCwgSmFuIEJl dWxpY2ggd3JvdGU6Cj4gPj4gVGhlIHRpbWVyIG5lZWRzIHRvIHJlbWFpbiBhY3RpdmUgb25seSB1 bnRpbCBhbGwgcGVuZGluZyBJUlEgaW5zdGFuY2VzCj4gPj4gaGF2ZSBzZWVuIEVPSXMgZnJvbSB0 aGVpciByZXNwZWN0aXZlIGRvbWFpbnMuIFN0b3AgaXQgd2hlbiB0aGUgaW4tZmxpZ2h0Cj4gPj4g Y291bnQgaGFzIHJlYWNoZWQgemVybyBpbiBkZXNjX2d1ZXN0X2VvaSgpLiBOb3RlIHRoYXQgdGhp cyBpcyByYWNlIGZyZWUKPiA+PiAod2l0aCBfX2RvX0lSUV9ndWVzdCgpKSwgYXMgdGhlIElSUSBk ZXNjcmlwdG9yIGxvY2sgaXMgYmVpbmcgaGVsZCBhdAo+ID4+IHRoYXQgcG9pbnQuCj4gPj4gCj4g Pj4gQWxzbyBwdWxsIHVwIHN0b3BwaW5nIG9mIHRoZSB0aW1lciBpbiBfX2RvX0lSUV9ndWVzdCgp IGl0c2VsZjogSW5zdGVhZAo+ID4+IG9mIHN0b3BwaW5nIGl0IGltbWVkaWF0ZWx5IGJlZm9yZSBy ZS1zZXR0aW5nLCBzdG9wIGl0IGFzIHNvb24gYXMgd2UndmUKPiA+PiBtYWRlIGl0IHBhc3QgYW55 IGVhcmx5IHJldHVybnMgZnJvbSB0aGUgZnVuY3Rpb24gKGFuZCBoZW5jZSB3ZSdyZSBzdXJlCj4g Pj4gaXQnbGwgZ2V0IHNldCBhZ2FpbikuCj4gPj4gCj4gPj4gRmluYWxseSBiYWlsIGZyb20gdGhl IGFjdHVhbCB0aW1lciBoYW5kbGVyIGluIGNhc2Ugd2UgZmluZCB0aGUgdGltZXIKPiA+PiBhbHJl YWR5IGFjdGl2ZSBhZ2FpbiBieSB0aGUgdGltZSB3ZSd2ZSBtYW5hZ2VkIHRvIGFjcXVpcmUgdGhl IElSUQo+ID4+IGRlc2NyaXB0b3IgbG9jay4gV2l0aG91dCB0aGlzIHdlIG1heSBmb3JjaWJseSBF T0kgYW4gSVJRIGltbWVkaWF0ZWx5Cj4gPj4gYWZ0ZXIgaXQgZ290IHNlbnQgdG8gYSBndWVzdC4g Rm9yIHRoaXMsIHRpbWVyX2lzX2FjdGl2ZSgpIGdldHMgc3BsaXQgb3V0Cj4gPj4gb2YgYWN0aXZl X3RpbWVyKCksIGRlbGliZXJhdGVseSBtb3ZpbmcganVzdCBvbmUgb2YgdGhlIHR3byBBU1NFUlQo KXMgKHRvCj4gPj4gYWxsb3cgdGhlIGZ1bmN0aW9uIHRvIGJlIHVzZWQgYWxzbyBvbiBhIG5ldmVy IGluaXRpYWxpemVkIHRpbWVyKS4KPiA+IAo+ID4gQUZBSUNUIHRpbWVyX2lzX2FjdGl2ZSBpcyBl eGNsdXNpdmVseSB1c2VkIGluIGlycV9ndWVzdF9lb2lfdGltZXJfZm4sCj4gPiB3aGljaCBtdXN0 IGhhdmUgaW5pdGlhbGl6ZWQgdGhlIHRpbWVyIGluIG9yZGVyIGZvcgo+ID4gaXJxX2d1ZXN0X2Vv aV90aW1lcl9mbiB0byBiZSBjYWxsZWQsIGFuZCBoZW5jZSBJJ20gbm90IHN1cmUgd2h5IHlvdQo+ ID4gbmVlZCB0byBiZSBhYmxlIHRvIGNhbGwgdGltZXJfaXNfYWN0aXZlIHdpdGggYW4gdW5pbml0 aWFsaXplZCB0aW1lci4KPiAKPiBJdCdzIG5vdCBuZWVkZWQgaGVyZSwgYnV0IEkgY29uc2lkZXIg dGhpcyB1c2VmdWwgYmVoYXZpb3Igd2hlbiB1c2VkCj4gb3V0c2lkZSBvZiB0aGUgc3BlY2lmaWMg dGltZXIncyBoYW5kbGVyLgo+IAo+ID4gSXMgdGhpcyBtYXliZSB1c2VkIGJ5IG90aGVyIHBhdGNo ZXM/Cj4gCj4gTm9uZSB0aGF0IEkgd291bGQgaGF2ZSBpbiB0aGUgd29ya3MuCgpUaGVuIElNTyBJ IHdvdWxkIHJhdGhlciBtYWtlIHRpbWVyX2lzX2FjdGl2ZSBhIHJlcGxhY2VtZW50IGZvcgphY3Rp dmVfdGltZXIgKG9yIGp1c3QgbW92ZSBhY3RpdmVfdGltZXIgdG8gdGhlIGhlYWRlcikgaWYgdGhl cmUncyBubwp1c2VyIHRoYXQgY2FuIGNhbGwgdGltZXJfaXNfYWN0aXZlIHdpdGggYW4gdW5pbml0 aWFsaXplZCB0aW1lci4gSWU6IEkKd291bGQga2VlcCB0aGUgYXNzZXJ0cyBhcyByZXN0cmljdGl2 ZSBhcyBwb3NzaWJsZSB1bmxlc3MgdGhlcmUncyBhCnVzZXIgdGhhdCByZXF1aXJlcyBsZXNzIHJl c3RyaWN0aXZlIGFzc2VydGlvbnMuCgpBbnl3YXksIHRoZSBjaGFuZ2UgaXMgYW4gaW1wcm92ZW1l bnQsIHNvIHdpdGggb3Igd2l0aG91dCB0aGF0IGNoYW5nZWQ6CgpSZXZpZXdlZC1ieTogUm9nZXIg UGF1IE1vbm7DqSA8cm9nZXIucGF1QGNpdHJpeC5jb20+CgpUaGFua3MuCgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0 Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qu b3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs