From mboxrd@z Thu Jan 1 00:00:00 1970 From: zhoucm1 Subject: Re: [PATCH] drm/amdgpu: validate shadow before restoring from it Date: Tue, 25 Apr 2017 11:16:57 +0800 Message-ID: <58FEBFA9.7050700@amd.com> References: <1493090078-29023-1-git-send-email-Hongbo.He@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1493090078-29023-1-git-send-email-Hongbo.He-5C7GfCeVMHo@public.gmane.org> List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "amd-gfx" To: "Roger.He" , amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org CgpPbiAyMDE35bm0MDTmnIgyNeaXpSAxMToxNCwgUm9nZXIuSGUgd3JvdGU6Cj4gQ2hhbmdlLUlk OiBJZDkyNWY0ZTI0MWM0MTkyMTI3ODgwZDIwMTdmYmYyOTc5YWEwOWZjNwo+IFNpZ25lZC1vZmYt Ynk6IFJvZ2VyLkhlIDxIb25nYm8uSGVAYW1kLmNvbT4KPiAtLS0KPiAgIGRyaXZlcnMvZ3B1L2Ry bS9hbWQvYW1kZ3B1L2FtZGdwdV9kZXZpY2UuYyB8IDMzICsrKysrKysrKysrKysrKysrKysrKysr KysrKysrKwo+ICAgMSBmaWxlIGNoYW5nZWQsIDMzIGluc2VydGlvbnMoKykKPgo+IGRpZmYgLS1n aXQgYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfZGV2aWNlLmMgYi9kcml2ZXJz L2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfZGV2aWNlLmMKPiBpbmRleCBmNzQxNDljLi5jZWJk NTQ2IDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9kZXZp Y2UuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9kZXZpY2UuYwo+ IEBAIC0yNDY4LDYgKzI0NjgsMjcgQEAgYm9vbCBhbWRncHVfbmVlZF9iYWNrdXAoc3RydWN0IGFt ZGdwdV9kZXZpY2UgKmFkZXYpCj4gICAJcmV0dXJuIGFtZGdwdV9sb2NrdXBfdGltZW91dCA+IDAg PyB0cnVlIDogZmFsc2U7Cj4gICB9Cj4gICAKPiArc3RhdGljIGludCBhbWRncHVfYm9fdmFsaWRh dGUoc3RydWN0IGFtZGdwdV9ibyAqYm8pCj4gK3sKPiArCXVpbnQzMl90IGRvbWFpbjsKPiArCWlu dCByOwo+ICsKPiArCWlmIChiby0+cGluX2NvdW50KQo+ICsJCXJldHVybiAwOwo+ICsKPiArCWRv bWFpbiA9IGJvLT5wcmVmZXJlZF9kb21haW5zOwo+ICsKPiArcmV0cnk6Cj4gKwlhbWRncHVfdHRt X3BsYWNlbWVudF9mcm9tX2RvbWFpbihibywgZG9tYWluKTsKPiArCXIgPSB0dG1fYm9fdmFsaWRh dGUoJmJvLT50Ym8sICZiby0+cGxhY2VtZW50LCBmYWxzZSwgZmFsc2UpOwo+ICsJaWYgKHVubGlr ZWx5KHIgPT0gLUVOT01FTSkgJiYgZG9tYWluICE9IGJvLT5hbGxvd2VkX2RvbWFpbnMpIHsKPiAr CQlkb21haW4gPSBiby0+YWxsb3dlZF9kb21haW5zOwo+ICsJCWdvdG8gcmV0cnk7Cj4gKwl9Cj4g Kwo+ICsJcmV0dXJuIHI7Cj4gK30KeW91IGNhbiBtb3ZlIHRoaXMgZnVuY3Rpb24gdG8gYW1kZ3B1 X29iamVjdC5jLCB3aXRoIHRoYXQgZml4LCBpdCBsb29rcyAKb2sgdG8gbWUsIFJldmlld2VkLWJ5 OiBDaHVubWluZyBaaG91IDxkYXZpZDEuemhvdUBhbWQuY29tPgoKPiArCj4gICBzdGF0aWMgaW50 IGFtZGdwdV9yZWNvdmVyX3ZyYW1fZnJvbV9zaGFkb3coc3RydWN0IGFtZGdwdV9kZXZpY2UgKmFk ZXYsCj4gICAJCQkJCSAgIHN0cnVjdCBhbWRncHVfcmluZyAqcmluZywKPiAgIAkJCQkJICAgc3Ry dWN0IGFtZGdwdV9ibyAqYm8sCj4gQEAgLTI0ODUsNiArMjUwNiwxOCBAQCBzdGF0aWMgaW50IGFt ZGdwdV9yZWNvdmVyX3ZyYW1fZnJvbV9zaGFkb3coc3RydWN0IGFtZGdwdV9kZXZpY2UgKmFkZXYs Cj4gICAJZG9tYWluID0gYW1kZ3B1X21lbV90eXBlX3RvX2RvbWFpbihiby0+dGJvLm1lbS5tZW1f dHlwZSk7Cj4gICAJLyogaWYgYm8gaGFzIGJlZW4gZXZpY3RlZCwgdGhlbiBubyBuZWVkIHRvIHJl Y292ZXIgKi8KPiAgIAlpZiAoZG9tYWluID09IEFNREdQVV9HRU1fRE9NQUlOX1ZSQU0pIHsKPiAr CQlyID0gYW1kZ3B1X2JvX3ZhbGlkYXRlKGJvLT5zaGFkb3cpOwo+ICsJCWlmIChyKSB7Cj4gKwkJ CURSTV9FUlJPUigiYm8gdmFsaWRhdGUgZmFpbGVkIVxuIik7Cj4gKwkJCWdvdG8gZXJyOwo+ICsJ CX0KPiArCj4gKwkJciA9IGFtZGdwdV90dG1fYmluZCgmYm8tPnNoYWRvdy0+dGJvLCAmYm8tPnNo YWRvdy0+dGJvLm1lbSk7Cj4gKwkJaWYgKHIpIHsKPiArCQkJRFJNX0VSUk9SKCIlcCBiaW5kIGZh aWxlZFxuIiwgYm8tPnNoYWRvdyk7Cj4gKwkJCWdvdG8gZXJyOwo+ICsJCX0KPiArCj4gICAJCXIg PSBhbWRncHVfYm9fcmVzdG9yZV9mcm9tX3NoYWRvdyhhZGV2LCByaW5nLCBibywKPiAgIAkJCQkJ CSBOVUxMLCBmZW5jZSwgdHJ1ZSk7Cj4gICAJCWlmIChyKSB7CgpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwphbWQtZ2Z4IG1haWxpbmcgbGlzdAphbWQtZ2Z4 QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWls bWFuL2xpc3RpbmZvL2FtZC1nZngK