From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Campbell Subject: Using IRQ_GUEST|IRQ_PER_CPU to signal "delivery to current vcpu"? Date: Tue, 10 Nov 2015 10:48:19 +0000 Message-ID: <1447152499.9407.25.camel@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Jan Beulich , Andrew Cooper , Stefano Stabellini Cc: xen-devel List-Id: xen-devel@lists.xenproject.org SGkgYXJjaCBtYWludGFpbmVycywKClRoZSBBUk0gaGFyZHdhcmUgaGFzIGEgY29uY2VwdCBjYWxs ZWQgYSAiUGVyaXBoZXJhbCBQcml2YXRlIEludGVycnVwdCIKKFBQSSksIGFuIElSUSB3aGljaCBp cyBwZXItY29yZSBhcyBvcHBvc2VkIHRvIGEgIlNoYXJlZCBQZXJpcGhlcmFsCkludGVycnVwdCIg KFNQSSkgd2hpY2ggaXMgcGVyLVNPQyAocm91dGFibGUgdG8gYWxsIGNvcmVzKS4KCihGb3IgY29t cGxldGVuZXNzIHRoZSBvdGhlciBjbGFzc2VzIG9mIElSUSBhcmUgIlNvZnR3YXJlIEdlbmVyYXRl ZApJbnRlcnJ1cHQiIChTR0kpIEFLQSAiSVBJIiBhbmQgIkxvY2FsaXR5LXNwZWNpZmljIFBlcmlw aGVyYWwgSW50ZXJydXB0IgooTFBJKSB3aGljaCBpcywgYXBwcm94aW1hdGVseSwgYW4gTVNJKS4K ClBQSXMgYXJlIHR5cGljYWxseSBnZW5lcmF0ZWQgYnkgcGVyLWNvcmUgcmVzb3VyY2VzLCBzdWNo IGFzIHRoZSB0aW1lcgpibG9jaywgb3IgUE1VIGJsb2NrcyBldGMuCgpJIHdvdWxkIGxpa2UgdG8g YXJyYW5nZSBmb3IgYSBuZXcgKEkgdGhpbmspIGNsYXNzIG9mIGludGVycnVwdCB3aXRoaW4gWGVu LAp3aGljaCBpcyBhbiBpbnRlcnJ1cHQgKG5lY2Vzc2FyaWx5IGEgUFBJKSB3aGljaCBpcyBhbHdh eXMgZGVsaXZlcmVkIHRvCndoaWNoZXZlciBWQ1BVIGlzIGN1cnJlbnRseSByZXNpZGVudCBvbiBh IGdpdmVuIFBDUFUgYW5kIHVzZSB0aGlzIHRvCmFycmFuZ2UgdG8gZGVsaXZlciB2dGltZXIgaW50 ZXJydXB0cyBkaXJlY3QgdG8gdGhlIGN1cnJlbnQgVkNQVSwgdGFraW5nCmNhcmUgb2YgY29udGV4 dCBzd2l0Y2hpbmcgdGhlIHN0YXR1cyAoaXMgaXQgcGVuZGluZz8gYWN0aXZlPyBldGMpIG9mIHRo ZQpQUEkgd2hpbGUgY29udGV4dCBzd2l0Y2hpbmcgdGhlIHZ0aW1lciAoc29tZXRoaW5nIHdoaWNo IHRoZSBoL3cgc3VwcG9ydHMKcXVpdGUgZWFzaWx5IGFuZCB3aGljaCB0aGVuIGF2b2lkcyByYWNl cyB3cnQgZ3Vlc3RzIHVubWFza2luZyB0aGUgdGltZXIKd2hpbGUgaXQgaXMgc3RpbGwgYWN0aXZl IGluIHRoZSBpbnRlcnJ1cHQgdmlydHVhbCBjb250cm9sbGVyIGJ1dCBub3QgdGhlCnJlYWwgb25l KS4KCk15IGZpcnN0IGN1dCAoWzBdLCBmcm9tIEphbnVhcnkgdGhpcyB5ZWFyKSBrZXllZCB0aGlz IGJlaGF2aW91ciBvbiBhbiBBUk0Kc3BlY2lmaWMgc3RydWN0IGlycV9ndWVzdCBmaWVsZCAtPmQg KGRvbWFpbikgYmVpbmcgTlVMTCwgd2hpY2ggSSB3YXNuJ3QKdGVycmlibHkgY29tZm9ydGFibGUg d2l0aC4gSW4gbXkgV0lQIHYyIEkgaGF2ZSBjdXJyZW50IGFkZGVkIGEgbmV3IGJvb2xlYW4KZmll bGQgdG8gc3RydWN0IGlycV9ndWVzdCwgd2hpY2ggc2VlbXMgcmF0aGVyIHdhc3RlZnVsIGR1ZSB0 byByb3VuZGluZyB1cApvZiB0aGUgc2l6ZSBldGMgYW5kIHNvIEknbSBub3QgcmVhbGx5IGhhcHB5 IHdpdGggdGhhdCBlaXRoZXIgKEkgYWxzbwpjb25zaWRlcmVkIGFuZCByZWplY3RlZCBvdGhlciB0 cmlja3MgbGlrZSBzdGVhbGluZyBhIGJpdCBmcm9tIGFuIGV4aXN0aW5nCmZpZWxkLCBlLmcuIHRo ZSB1bnNpZ25lZCB2aXJxKS4KClNvLCBJIHdhcyBjb25zaWRlcmluZyB1c2luZyBhIG5ldyBiaXQg aW4gdGhlIGNvbW1vbiBkZXNjLT5zdGF0dXMgYml0LiBVcG9uCmNoZWNraW5nIHhlbi9pcnEuaCBJ IGZvdW5kIHRoZXJlIHdhcyBhbHJlYWR5IElSUV9QRVJfQ1BVIHdoaWNoIGFwcGVhcnMgdG8KYmUg Y29tcGxldGVseSB1bnVzZWQgaW4gdGhlIGN1cnJlbnQgY29kZSBiYXNlIChpdCBsb29rcyB0byBo YXZlIGJlZW4gdXNlZApieSBJQTY0IGFuZCBQUEMsIGJ1dCBuZXZlciBieSB4ODYgYW5kIG5vdCBj dXJyZW50bHkgdXNlZCBBRkFJQ1QgYnkgQVJNLCB4ODYKb3IgY29tbW9uIGNvZGUuKQoKSXQgc2Vl bXMgbGlrZSBJUlFfR1VFU1R8SVJRX1BFUl9DUFUgaXMgYSBwcmV0dHkgZ29vZCBmaXQgZm9yIHRo ZSBzZW1hbnRpY3MKSSB3YW50LCBidXQgSSB0aGluayBpdCB3b3VsZCBiZSBjb25mdXNpbmcgdG8g ZGVmaW5lIGl0IGFzIG1lYW5pbmcgc3VjaCBvbmx5Cm9uIEFSTSBhbmQgaGF2aW5nIGVpdGhlciBj b21tb24gY29kZSBvciBvdGhlciBhcmNoaXRlY3R1cmVzIGFzY3JpYmUgYQpkaWZmZXJlbnQgbWVh bmluZyAob3RoZXIgdGhhbiAibWVhbmluZ2xlc3Mgb24gdGhpcyBhcmNoIikgdG8gaXQuCgpJIHRo aW5rIHRoZSBvdGhlciBwb3NzaWJsZSB1c2UgY2FzZSBvZiB0aGlzIHNjZW5hcmlvIChyb3V0aW5n IGEgUFBJIHRvIGEKc3BlY2lmaWMgZ3Vlc3QpIHNlZW1zIHJhdGhlciB1bmxpa2VseSAoc2luY2Ug aXQgd291bGQgaW1wbHkgcGlubmluZyBpbgp2YXJpb3VzIG9kZCB3YXlzKS4gSSB0aGluayB0aGF0 IHVzZSBjYXNlIGNhbiBhbHNvIGJlIGRlYWx0IHdpdGggYnkgdGhlCmNvbnRleHQgc3dpdGNoaW5n IGNvZGUgd2hpY2ggY2FuIHJlcm91dGUgdGhlIGludGVycnVwdCBhcyBuZWVkZWQgKGkuZS4KdW5t YXNrIG9ubHkgd2hlbiB0aGUgcmVsZXZhbnQgdmNwdSBpcyBydW5uaW5nKS4KCkFueSB0aG91Z2h0 cz8KCkFyZ3VhYmx5IGFsbCBQUElzIG9uIEFSTSAoZXZlbiAibm9ybWFsIiBvbmVzKSBvdWdodCB0 byBoYXZlIElSUV9QRVJfQ1BVIHNldAp0b28gYnV0IHRoYXQgaXMgc29tZXRoaW5nIG9mIGFuIGFz aWRlLgoKQ2hlZXJzLApJYW4uCgpbMF3CoGh0dHA6Ly9saXN0cy54ZW4ub3JnL2FyY2hpdmVzL2h0 bWwveGVuLWRldmVsLzIwMTUtMDEvbXNnMDMxNjEuaHRtbAoKX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2 ZWxAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK