From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Return-Path: Subject: Re: [PATCH v2 13/40] vfio: Add support for Shared Virtual Addressing To: Jean-Philippe Brucker , "linux-arm-kernel@lists.infradead.org" , "linux-pci@vger.kernel.org" , "linux-acpi@vger.kernel.org" , "devicetree@vger.kernel.org" , "iommu@lists.linux-foundation.org" , "kvm@vger.kernel.org" , "linux-mm@kvack.org" References: <20180511190641.23008-1-jean-philippe.brucker@arm.com> <20180511190641.23008-14-jean-philippe.brucker@arm.com> <5B0536A3.1000304@huawei.com> <5B06B17C.1090809@huawei.com> <205c1729-8026-3efe-c363-d37d7150d622@arm.com> <5B077765.30703@huawei.com> <5B08DA21.3070507@huawei.com> <99ff4f89-86ef-a251-894c-8aa8a47d2a69@arm.com> From: Xu Zaibo Message-ID: <5B0D467C.90206@huawei.com> Date: Tue, 29 May 2018 20:24:28 +0800 MIME-Version: 1.0 In-Reply-To: <99ff4f89-86ef-a251-894c-8aa8a47d2a69@arm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "bharatku@xilinx.com" , "ashok.raj@intel.com" , "dwmw2@infradead.org" , "ilias.apalodimas@linaro.org" , Will Deacon , "okaya@codeaurora.org" , "rgummal@xilinx.com" , Jonathan Cameron , "rfranz@cavium.com" , "liguozhu@hisilicon.com" , "christian.koenig@amd.com" Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+bjorn=helgaas.com@lists.infradead.org List-ID: SGksCgpPbiAyMDE4LzUvMjkgMTk6NTUsIEplYW4tUGhpbGlwcGUgQnJ1Y2tlciB3cm90ZToKPiAo SWYgcG9zc2libGUsIHBsZWFzZSByZXBseSBpbiBwbGFpbiB0ZXh0IHRvIHRoZSBsaXN0LiBSZWFk aW5nIHRoaXMgaW4gYQo+IHRleHQtb25seSByZWFkZXIgaXMgY29uZnVzaW5nLCBiZWNhdXNlIGFs bCBxdW90ZXMgaGF2ZSB0aGUgc2FtZSBsZXZlbCkKU29ycnkgZm9yIHRoYXTvvIwgSSBoYXZlIHJl c2V0IHRoZSB0aHVuZGVyYmlyZCwgOikgdGhhbmtzLgo+IE9uIDI2LzA1LzE4IDA0OjUzLCBYdSBa YWlibyB3cm90ZToKPj4gSSBndWVzcyB0aGVyZSBtYXkgYmUgc29tZSBtaXN1bmRlcnN0YW5kaW5n cyA6KS4KPj4KPj4gIEZyb20gdGhlIGN1cnJlbnQgcGF0Y2hlcywgJ2lvbW11X3N2YV9kZXZpY2Vf c2h1dGRvd24nIGlzIGNhbGxlZCBieSAndmZpb19pb21tdV9zdmFfc2h1dGRvd24nLCB3aGljaAo+ PiBpcyBtYWlubHkgdXNlZCBieSAndmZpb19pb21tdV90eXBlMV9kZXRhY2hfZ3JvdXAnIHRoYXQg aXMgZmluYWxseSBjYWxsZWQgYnkgcHJvY2Vzc2VzJyByZWxlYXNlIG9mIHZmaW8gZmFjaWxpdGl5 Cj4+IGF1dG9tYXRpY2FsbHkgb3IgY2FsbGVkIGJ5ICdWRklPX0dST1VQX1VOU0VUX0NPTlRBSU5F UicgbWFudWFsbHkgaW4gdGhlIHByb2Nlc3Nlcy4KPj4KPj4gU28sIGp1c3QgaW1hZ2UgdGhhdCAy IHByb2Nlc3NlcyBpcyB3b3JraW5nIG9uIHRoZSBkZXZpY2Ugd2l0aCBJT1BGIGZlYXR1cmUsIGFu ZCB0aGUgMiBkbyB0aGUgZm9sbG93aW5nIHRvIGVuYWJsZSBTVkE6Cj4+Cj4+ICAgICAgMS5vcGVu KCIvZGV2L3ZmaW8vdmZpbyIpIDsKPj4KPj4gICAgIDIub3BlbiB0aGUgZ3JvdXAgb2YgdGhlIGRl dmNpZSBieSBjYWxsaW5nIG9wZW4oIi9kZXYvdmZpby94IiksIGJ1dCBub3csCj4+ICAgICAgIEkg dGhpbmsgdGhlIHNlY29uZCBwcm9jZXNzZXMgd2lsbCBmYWlsIHRvIG9wZW4gdGhlIGdyb3VwIGJl Y2F1c2UgY3VycmVudCBWRklPIHRoaW5rcyB0aGF0IG9uZSBncm91cCBvbmx5IGNhbiBiZSB1c2Vk IGJ5IG9uZSBwcm9jZXNzL3ZtLAo+PiAgICAgICBhdCBwcmVzZW50LCBJIHVzZSBtZWRpYXRlZCBk ZXZpY2UgdG8gY3JlYXRlIG1vcmUgZ3JvdXBzIG9uIHRoZSBwYXJlbnQgZGV2aWNlIHRvIHN1cHBv cnQgbXVsdGlwbGUgcHJvY2Vzc2VzOwo+Pgo+PiAgICAgIDMuVkZJT19HUk9VUF9TRVRfQ09OVEFJ TkVSOwo+Pgo+PiAgICAgIDQuVkZJT19TRVRfSU9NTVU7Cj4+Cj4+ICAgICAgNS5WRklPX0lPTU1V X0JJTkQ7Cj4gSSBoYXZlIGEgY29uY2VybiByZWdhcmRpbmcgeW91ciBkcml2ZXIuIFdpdGggbWRl diB5b3UgY2FuJ3QgYWxsb3cKPiBwcm9jZXNzZXMgdG8gcHJvZ3JhbSB0aGUgUEFTSUQgdGhlbXNl bHZlcywgc2luY2UgdGhlIHBhcmVudCBkZXZpY2UgaGFzIGEKPiBzaW5nbGUgUEFTSUQgdGFibGUu IFlvdSBsb3NlIGFsbCBpc29sYXRpb24gc2luY2UgcHJvY2Vzc2VzIGNvdWxkIHdyaXRlCj4gYW55 IHZhbHVlIGluIHRoZSBQQVNJRCBmaWVsZCBhbmQgYWNjZXNzIGFkZHJlc3Mgc3BhY2VzIG9mIG90 aGVyCj4gcHJvY2Vzc2VzIGJvdW5kIHRvIHRoaXMgcGFyZW50IGRldmljZSAoZXZlbiBpZiB0aGUg QklORCBjYWxsIHdhcyBmb3IKPiBvdGhlciBtZGV2cykuClllcywgaWYgd3JhcGRyaXZlIGRvIG5v dGhpbmcgb24gdGhpcyBQQVNJRCBzZXR0aW5nIHByb2NlZHVyZSBpbiBrZXJuZWwgCnNwYWNlLCBJ IHRoaW5rCnRoZXJlIGRlZmluaXRlbHkgZXhpc3RzIHRoaXMgc2VjdXJpdHkgcmlzay4KPiBUaGUg d3JhcCBkcml2ZXIgaGFzIHRvIG1lZGlhdGUgY2FsbHMgdG8gYmluZCgpLCBhbmQgZWl0aGVyIHBy b2dyYW0gdGhlCj4gUEFTSUQgaW50byB0aGUgZGV2aWNlIGl0c2VsZiwgb3IgYXQgbGVhc3QgY2hl Y2sgdGhhdCwgd2hlbiByZWNlaXZpbmcgYQo+IFNFVF9QQVNJRCBpb2N0bCBmcm9tIGEgcHJvY2Vz cywgdGhlIGdpdmVuIFBBU0lEIHdhcyBhY3R1YWxseSBhbGxvY2F0ZWQKPiB0byB0aGUgcHJvY2Vz cy4KWWVzLCBnb29kIGFkdmljZSwgdGhhbmtzLgo+Cj4+ICAgICAgNi5EbyBzb21lIHdvcmtzIHdp dGggdGhlIGhhcmR3YXJlIHdvcmtpbmcgdW5pdCBmaWxsZWQgYnkgUEFTSUQgb24gdGhlIGRldmlj ZTsKPj4KPj4gICAgIDcuVkZJT19JT01NVV9VTkJJTkQ7Cj4+Cj4+ICAgICAgOC5WRklPX0dST1VQ X1VOU0VUX0NPTlRBSU5FUjstLS1oZXJlLCBoYXZlIHRvIHNsZWVwIHRvIHdhaXQgYW5vdGhlciBw cm9jZXNzIHRvIGZpbmlzaCB3b3JrcyBvZiB0aGUgc3RlcCA2Owo+Pgo+PiAgICAgIDkuIGNsb3Nl KGdyb3VwKTsgY2xvc2UoY29udGFpbm5lcik7Cj4+Cj4+Cj4+IFNvLCBteSBpZGVhIGlzOiBJZiBp dCBpcyBwb3NzaWJsZSB0byBqdXN0IHJlbGVhc2UgdGhlIHBhcmFtcyBvciBmYWNpbGl0aWVzIHRo YXQgb25seSBiZWxvbmcgdG8gdGhlIGN1cnJlbnQgcHJvY2VzcyB3aGlsZSB0aGUgcHJvY2VzcyBz aHV0ZG93biB0aGUgZGV2aWNlLAo+PiBhbmQgd2hpbGUgdGhlIGxhc3QgcHJvY2VzcyByZWxlYXNl cyB0aGVtIGFsbC4gVGhlbiwgYXMgaW4gdGhlIGFib3ZlIHN0ZXAgOCwgd2UKPj4gZG9uJ3QgbmVl ZCB0byB3YWl0LCBvciBtYXliZSB3YWl0IGZvciBhIHZlcnkgbG9uZyB0aW1lIGlmIHRoZSBvdGhl ciBwcm9jZXNzIGlzIGRvaW5nIGxvdHMgb2Ygd29yayBvbiB0aGUgZGV2aWNlLgo+IEdpdmVuIHRo YXQgeW91IG5lZWQgdG8gbm90aWZ5IHRoZSBtZWRpYXRpbmcgZHJpdmVyIG9mIElPTU1VX0JJTkQg Y2FsbHMKPiBhcyBleHBsYWluZWQgYWJvdmUsIHlvdSBjb3VsZCBkbyBzb21ldGhpbmcgc2ltaWxh ciBmb3Igc2h1dGRvd246IGZyb20KPiB0aGUgbWRldiBkcml2ZXIsIGNhbGwgaW9tbXVfc3ZhX3No dXRkb3duX2RldmljZSgpIG9ubHkgZm9yIHRoZSBsYXN0IG1kZXYuCkN1cnJlbnRseSwgSSBhZGQg YW4gQVBJIHRvIGNoZWNrIGlmIGl0IGlzIHRoZSBsYXN0IG1kZXYgaW4gd3JhcGRyaXZlLCBhcyAK dmZpbyBzaHV0ZG93bnMgdGhlIGRldmljZSwKaXQgY2FsbCB0aGUgQVBJIHRvIGRvIHRoZSBjaGVj ayBhdCBmaXJzdC4KClRoYW5rcwpaYWlibwoKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1h cm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcv bWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==