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Mon, 15 Mar 2021 08:30:55 +0000 (UTC) Received: from disco-boy.misterjones.org ([51.254.78.96] helo=www.loen.fr) by disco-boy.misterjones.org with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94) (envelope-from ) id 1lLicn-001bcl-2Z; Mon, 15 Mar 2021 08:30:53 +0000 MIME-Version: 1.0 Date: Mon, 15 Mar 2021 08:30:52 +0000 From: Marc Zyngier To: Shenming Lu Subject: Re: [PATCH v4 5/6] KVM: arm64: GICv4.1: Restore VLPI pending state to physical side In-Reply-To: <20210313083900.234-6-lushenming@huawei.com> References: <20210313083900.234-1-lushenming@huawei.com> <20210313083900.234-6-lushenming@huawei.com> User-Agent: Roundcube Webmail/1.4.11 Message-ID: X-Sender: maz@kernel.org X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: lushenming@huawei.com, eric.auger@redhat.com, will@kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, alex.williamson@redhat.com, cohuck@redhat.com, lorenzo.pieralisi@arm.com, wanghaibin.wang@huawei.com, yuzenghui@huawei.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Cc: Lorenzo Pieralisi , kvm@vger.kernel.org, Cornelia Huck , linux-kernel@vger.kernel.org, Alex Williamson , Will Deacon , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu T24gMjAyMS0wMy0xMyAwODozOCwgU2hlbm1pbmcgTHUgd3JvdGU6Cj4gRnJvbTogWmVuZ2h1aSBZ dSA8eXV6ZW5naHVpQGh1YXdlaS5jb20+Cj4gCj4gV2hlbiBzZXR0aW5nIHRoZSBmb3J3YXJkaW5n IHBhdGggb2YgYSBWTFBJIChzd2l0Y2ggdG8gdGhlIEhXIG1vZGUpLAo+IHdlIGNhbiBhbHNvIHRy YW5zZmVyIHRoZSBwZW5kaW5nIHN0YXRlIGZyb20gaXJxLT5wZW5kaW5nX2xhdGNoIHRvCj4gVlBU IChlc3BlY2lhbGx5IGluIG1pZ3JhdGlvbiwgdGhlIHBlbmRpbmcgc3RhdGVzIG9mIFZMUElzIGFy ZSByZXN0b3JlZAo+IGludG8ga3Zt4oCZcyB2Z2ljIGZpcnN0KS4gQW5kIHdlIGN1cnJlbnRseSBz ZW5kICJJTlQrVlNZTkMiIHRvIHRyaWdnZXIKPiBhIFZMUEkgdG8gcGVuZGluZy4KPiAKPiBTaWdu ZWQtb2ZmLWJ5OiBaZW5naHVpIFl1IDx5dXplbmdodWlAaHVhd2VpLmNvbT4KPiBTaWduZWQtb2Zm LWJ5OiBTaGVubWluZyBMdSA8bHVzaGVubWluZ0BodWF3ZWkuY29tPgo+IC0tLQo+ICBhcmNoL2Fy bTY0L2t2bS92Z2ljL3ZnaWMtdjQuYyB8IDE4ICsrKysrKysrKysrKysrKysrKwo+ICAxIGZpbGUg Y2hhbmdlZCwgMTggaW5zZXJ0aW9ucygrKQo+IAo+IGRpZmYgLS1naXQgYS9hcmNoL2FybTY0L2t2 bS92Z2ljL3ZnaWMtdjQuYyAKPiBiL2FyY2gvYXJtNjQva3ZtL3ZnaWMvdmdpYy12NC5jCj4gaW5k ZXggYWMwMjliYTNkMzM3Li4zYjgyYWI4MGMyZjMgMTAwNjQ0Cj4gLS0tIGEvYXJjaC9hcm02NC9r dm0vdmdpYy92Z2ljLXY0LmMKPiArKysgYi9hcmNoL2FybTY0L2t2bS92Z2ljL3ZnaWMtdjQuYwo+ IEBAIC00NDksNiArNDQ5LDI0IEBAIGludCBrdm1fdmdpY192NF9zZXRfZm9yd2FyZGluZyhzdHJ1 Y3Qga3ZtICprdm0sIAo+IGludCB2aXJxLAo+ICAJaXJxLT5ob3N0X2lycQk9IHZpcnE7Cj4gIAlh dG9taWNfaW5jKCZtYXAudnBlLT52bHBpX2NvdW50KTsKPiAKPiArCS8qIFRyYW5zZmVyIHBlbmRp bmcgc3RhdGUgKi8KPiArCWlmIChpcnEtPnBlbmRpbmdfbGF0Y2gpIHsKPiArCQl1bnNpZ25lZCBs b25nIGZsYWdzOwo+ICsKPiArCQlyZXQgPSBpcnFfc2V0X2lycWNoaXBfc3RhdGUoaXJxLT5ob3N0 X2lycSwKPiArCQkJCQkgICAgSVJRQ0hJUF9TVEFURV9QRU5ESU5HLAo+ICsJCQkJCSAgICBpcnEt PnBlbmRpbmdfbGF0Y2gpOwo+ICsJCVdBUk5fUkFURUxJTUlUKHJldCwgIklSUSAlZCIsIGlycS0+ aG9zdF9pcnEpOwo+ICsKPiArCQkvKgo+ICsJCSAqIENsZWFyIHBlbmRpbmdfbGF0Y2ggYW5kIGNv bW11bmljYXRlIHRoaXMgc3RhdGUKPiArCQkgKiBjaGFuZ2UgdmlhIHZnaWNfcXVldWVfaXJxX3Vu bG9jay4KPiArCQkgKi8KPiArCQlyYXdfc3Bpbl9sb2NrX2lycXNhdmUoJmlycS0+aXJxX2xvY2ss IGZsYWdzKTsKPiArCQlpcnEtPnBlbmRpbmdfbGF0Y2ggPSBmYWxzZTsKPiArCQl2Z2ljX3F1ZXVl X2lycV91bmxvY2soa3ZtLCBpcnEsIGZsYWdzKTsKPiArCX0KPiArCj4gIG91dDoKPiAgCW11dGV4 X3VubG9jaygmaXRzLT5pdHNfbG9jayk7Cj4gIAlyZXR1cm4gcmV0OwoKVGhlIHJlYWQgc2lkZSBv ZiB0aGUgcGVuZGluZyBzdGF0ZSBpc24ndCBsb2NrZWQsIGJ1dCB0aGUgd3JpdGUgc2lkZSBpcy4K SSdkIHJhdGhlciB5b3UgbG9jayB0aGUgd2hvbGUgc2VxdWVuY2UgZm9yIHBlYWNlIG9mIG1pbmQu CgpUaGFua3MsCgogICAgICAgICBNLgotLSAKSmF6eiBpcyBub3QgZGVhZC4gSXQganVzdCBzbWVs bHMgZnVubnkuLi4KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X18Ka3ZtYXJtIG1haWxpbmcgbGlzdAprdm1hcm1AbGlzdHMuY3MuY29sdW1iaWEuZWR1Cmh0dHBz Oi8vbGlzdHMuY3MuY29sdW1iaWEuZWR1L21haWxtYW4vbGlzdGluZm8va3ZtYXJtCg==