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Tsirkin" Subject: Re: Question on guest enable msi fail when using GICv4/4.1 In-Reply-To: <373c70d3-eda3-8e84-d138-2f90d4e55217@redhat.com> References: <3a2c66d6-6ca0-8478-d24b-61e8e3241b20@hisilicon.com> <87k0oaq5jf.wl-maz@kernel.org> <878s4qq00u.wl-maz@kernel.org> <874kfepht4.wl-maz@kernel.org> <373c70d3-eda3-8e84-d138-2f90d4e55217@redhat.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: jasowang@redhat.com, lingshan.zhu@intel.com, zhangshaokun@hisilicon.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, linux-pci@vger.kernel.org, alex.williamson@redhat.com, cohuck@redhat.com, tangnianyao@huawei.com, bhelgaas@google.com, eric.auger@redhat.com, mst@redhat.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210508_021540_396581_F00F6542 X-CRM114-Status: GOOD ( 24.76 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gU2F0LCAwOCBNYXkgMjAyMSAwMjo1MTozOSArMDEwMCwKSmFzb24gV2FuZyA8amFzb3dhbmdA cmVkaGF0LmNvbT4gd3JvdGU6Cj4gCj4gCj4g5ZyoIDIwMjEvNS84IOS4iuWNiDE6MzYsIE1hcmMg WnluZ2llciDlhpnpgZM6CgpbLi4uXQoKPiA+IEFkZGluZyBaaHUsIEphc29uLCBNU1QgdG8gdGhl IHBhcnR5LiBJdCBhbGwgc2VlbXMgdG8gYmUgY2F1c2VkIGJ5IHRoaXMKPiA+IGNvbW1pdDoKPiA+ IAo+ID4gY29tbWl0IGE5NzlhNmFhMDA5ZjNjOTk2ODk0MzJlMGNkYjU0MDJhNDQ2M2ZiODgKPiA+ IEF1dGhvcjogWmh1IExpbmdzaGFuIDxsaW5nc2hhbi56aHVAaW50ZWwuY29tPgo+ID4gRGF0ZTog ICBGcmkgSnVsIDMxIDE0OjU1OjMzIDIwMjAgKzA4MDAKPiA+IAo+ID4gICAgICBpcnFieXBhc3M6 IGRvIG5vdCBzdGFydCBjb25zL3Byb2Qgd2hlbiBmYWlsZWQgY29ubmVjdAo+ID4gICAgICAgICAg IElmIGZhaWxlZCB0byBjb25uZWN0LCB0aGVyZSBpcyBubyBuZWVkIHRvIHN0YXJ0IGNvbnN1bWVy Cj4gPiBub3IKPiA+ICAgICAgcHJvZHVjZXIuCj4gPiAgICAgICAgICAgU2lnbmVkLW9mZi1ieTog Wmh1IExpbmdzaGFuIDxsaW5nc2hhbi56aHVAaW50ZWwuY29tPgo+ID4gICAgICBTdWdnZXN0ZWQt Ynk6IEphc29uIFdhbmcgPGphc293YW5nQHJlZGhhdC5jb20+Cj4gPiAgICAgIExpbms6IGh0dHBz Oi8vbG9yZS5rZXJuZWwub3JnL3IvMjAyMDA3MzEwNjU1MzMuNDE0NC03LWxpbmdzaGFuLnpodUBp bnRlbC5jb20KPiA+ICAgICAgU2lnbmVkLW9mZi1ieTogTWljaGFlbCBTLiBUc2lya2luIDxtc3RA cmVkaGF0LmNvbT4KPiA+IAo+ID4gCj4gPiBaaHUsIEknZCByZWFsbHkgbGlrZSB0byB1bmRlcnN0 YW5kIHdoeSB5b3UgdGhpbmsgaXQgaXMgT0sgbm90IHRvCj4gPiByZXN0YXJ0IGNvbnN1bWVyIGFu ZCBwcm9kdWNlcnMgd2hlbiBhIGNvbm5lY3Rpb24gaGFzIGZhaWxlZCB0byBiZQo+ID4gZXN0YWJs aXNoZWQgYmV0d2VlbiB0aGUgdHdvPwo+IAo+IAo+IE15IGJhZCwgSSBkaWRuJ3QgY2hlY2sgQVJN IGNvZGUgYnV0IGl0J3Mgbm90IGVhc3kgdG8gaW5mZXIgdGhhdCB0aGUKPiBjb25zLT5zdGFydC9z dG9wIGlzIG5vdCBhIHBlciBjb25zdW1lciBzcGVjaWZpYyBvcGVyYXRpb24gYnV0IGEgZ2xvYmFs Cj4gb25lIGxpa2UgVk0gaGFsdGluZy9yZXN1bWluZy4KCkkgZG9uJ3QgZGlzYWdyZWUgdGhhdCBp dCBpcyBhIGJpdCBvZiBhbiBvZGQgYmVoYXZpb3VyLCBhbmQgbWF5YmUgd2UKY2FuIGV2ZW50dWFs bHkgcmVsYXggdGhpcy4gSG93ZXZlciwgbXkgcnVsZSBvZiB0aHVtYiBmb3IgZXJyb3IKaGFuZGxp bmcgaXMgdG8gdHJ5IGFuZCBwdXQgdGhpbmdzIGJhY2sgaW4gdGhlIHN0YXRlIHlvdSBmb3VuZCB0 aGVtLgoKSXQgaXMgYWxzbyB1bmZvcnR1bmF0ZSB0aGF0IHRoaXMgc2FtZSBjb21taXQgaW50cm9k dWNlcyBhbiBpbnRlcmVzdGluZwpidWcgYnkgdW5jb25kaXRpb25hbGx5IGNhbGxpbmcgZGVsX3By b2R1Y2VyKCksIGV2ZW4gaWYgdGhlCnByb2R1Y2VyL2NvbnN1bWVyIGNvbm5lY3Rpb24gaGFzIHN1 Y2NlZWRlZC4gSSBndWVzcyBpdCBpcyBhIGdvb2QgdGhpbmcKdGhhdCBub2JvZHkgc2VlbSB0byBp bXBsZW1lbnQgYW55IG9mIHRoZSBwcm9kdWNlciBjYWxsYmFja3MuCgo+ID4gSW4gdGhlIGNhc2Ug b2YgS1ZNL2FybTY0LCB0aGlzIHJlc3VsdHMgaW4gdGhlIGd1ZXN0IGJlaW5nIGZvcmV2ZXIKPiA+ IHN1c3BlbmRlZCBhbmQgbmV2ZXIgcmVzdW1lZC4gVGhhdCdzIG9idmlvdXNseSBub3QgYW4gYWNj ZXB0YWJsZQo+ID4gcmVncmVzc2lvbiwgYXMgdGhlcmUgaXMgYSBudW1iZXIgb2YgYmVuaWduIHJl YXNvbnMgZm9yIGEgY29ubmVjdCB0bwo+ID4gZmFpbC4KPiAKPiAKPiBMZXQncyByZXZlcnQgdGhp cyBjb21taXQuCgpUaGFua3MsCgoJTS4KCi0tIApXaXRob3V0IGRldmlhdGlvbiBmcm9tIHRoZSBu b3JtLCBwcm9ncmVzcyBpcyBub3QgcG9zc2libGUuCgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51 eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5v cmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==