From mboxrd@z Thu Jan 1 00:00:00 1970 From: Baoquan He Subject: Re: [PATCH 2/4 V3] Allocate pages for kdump without encryption when SME is enabled Date: Thu, 21 Jun 2018 18:23:21 +0800 Message-ID: <20180621102321.GK29979@MiWiFi-R3L-srv> References: <20180616082714.32035-1-lijiang@redhat.com> <20180616082714.32035-3-lijiang@redhat.com> <20180621015306.GG29979@MiWiFi-R3L-srv> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: lijiang Cc: thomas.lendacky-5C7GfCeVMHo@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: iommu@lists.linux-foundation.org T24gMDYvMjEvMTggYXQgMDE6MDZwbSwgbGlqaWFuZyB3cm90ZToKPiDlnKggMjAxOOW5tDA25pyI MjHml6UgMDk6NTMsIEJhb3F1YW4gSGUg5YaZ6YGTOgo+ID4gT24gMDYvMTYvMTggYXQgMDQ6Mjdw bSwgTGlhbmJvIEppYW5nIHdyb3RlOgo+ID4+IFdoZW4gU01FIGlzIGVuYWJsZWQgaW4gdGhlIGZp cnN0IGtlcm5lbCwgd2Ugd2lsbCBhbGxvY2F0ZSBwYWdlcwo+ID4+IGZvciBrZHVtcCB3aXRob3V0 IGVuY3J5cHRpb24gaW4gb3JkZXIgdG8gYmUgYWJsZSB0byBib290IHRoZQo+ID4+IHNlY29uZCBr ZXJuZWwgaW4gdGhlIHNhbWUgbWFubmVyIGFzIGtleGVjLCB3aGljaCBoZWxwcyB0byBrZWVwCj4g Pj4gdGhlIHNhbWUgY29kZSBzdHlsZS4KPiA+Pgo+ID4+IFNpZ25lZC1vZmYtYnk6IExpYW5ibyBK aWFuZyA8bGlqaWFuZ0ByZWRoYXQuY29tPgo+ID4+IC0tLQo+ID4+ICBrZXJuZWwva2V4ZWNfY29y ZS5jIHwgMTIgKysrKysrKysrKysrCj4gPj4gIDEgZmlsZSBjaGFuZ2VkLCAxMiBpbnNlcnRpb25z KCspCj4gPj4KPiA+PiBkaWZmIC0tZ2l0IGEva2VybmVsL2tleGVjX2NvcmUuYyBiL2tlcm5lbC9r ZXhlY19jb3JlLmMKPiA+PiBpbmRleCAyMGZlZjFhLi4zYzIyYTliIDEwMDY0NAo+ID4+IC0tLSBh L2tlcm5lbC9rZXhlY19jb3JlLmMKPiA+PiArKysgYi9rZXJuZWwva2V4ZWNfY29yZS5jCj4gPj4g QEAgLTQ3MSw2ICs0NzEsMTYgQEAgc3RhdGljIHN0cnVjdCBwYWdlICpraW1hZ2VfYWxsb2NfY3Jh c2hfY29udHJvbF9wYWdlcyhzdHJ1Y3Qga2ltYWdlICppbWFnZSwKPiA+PiAgCQl9Cj4gPj4gIAl9 Cj4gPj4gIAo+ID4+ICsJaWYgKHBhZ2VzKSB7Cj4gPj4gKwkJdW5zaWduZWQgaW50IGNvdW50LCBp Owo+ID4+ICsKPiA+PiArCQlwYWdlcy0+bWFwcGluZyA9IE5VTEw7Cj4gPj4gKwkJc2V0X3BhZ2Vf cHJpdmF0ZShwYWdlcywgb3JkZXIpOwo+ID4+ICsJCWNvdW50ID0gMSA8PCBvcmRlcjsKPiA+PiAr CQlmb3IgKGkgPSAwOyBpIDwgY291bnQ7IGkrKykKPiA+PiArCQkJU2V0UGFnZVJlc2VydmVkKHBh Z2VzICsgaSk7Cj4gPiAKPiA+IEkgZ3Vlc3MgeW91IG1pZ2h0IGltaXRhdGUgdGhlIGtleGVjIGNh c2UsIGhvd2V2ZXIga2V4ZWMgZ2V0IHBhZ2VzIGZyb20KPiA+IGJ1ZGR5LiBDcmFzaCBwYWdlcyBh cmUgcmVzZXJ2ZWQgaW4gbWVtYmxvY2ssIHRoZXNlIGNvZGVzIG1pZ2h0IG1ha2Ugbm8gc2Vuc2Uu Cj4gPiAKPiBUaGFua3MgZm9yIHlvdXIgY29tbWVudHMuCj4gV2UgaGF2ZSBjaGFuZ2VkIHRoZSBh dHRyaWJ1dGUgb2YgcGFnZXMsIHNvIHRoZSBvcmlnaW5hbCBhdHRyaWJ1dGUgb2YgcGFnZXMgd2ls bCBiZQo+IHJlc3RvcmVkIHdoZW4gdGhleSBmcmVlLgoKSG1tLCB5b3UgY2FuIGNoZWNrIHdoYXQg a2ltYWdlX2ZyZWUoKSBpcyBkb2luZywgYW5kIHdoZXJlCmtpbWFnZS0+Y29udHJvbF9wYWdlcywg ZGVzdF9wYWdlcywgdW51c2FibGVfcGFnZXMgaXMgYXNzaWduZWQuIERvIHlvdQprbm93IHdoZXJl IHRoZXNlIG9yaWdpbmFsIGF0dHJpYnV0ZSBvZiBwYWdlcyBjb21lcyBmcm9tIGFuZCB0aGV5IGFy ZQp1c2VkL25lZWRlZCBpbiBDUkFTSCBjYXNlLCBpZiB5b3UgY2FyZSBhYm91dCB0aGVtPwoKPiAK PiA+PiArCQlhcmNoX2tleGVjX3Bvc3RfYWxsb2NfcGFnZXMocGFnZV9hZGRyZXNzKHBhZ2VzKSwg MSA8PCBvcmRlciwgMCk7Cj4gPj4gKwl9Cj4gPj4gIAlyZXR1cm4gcGFnZXM7Cj4gPj4gIH0KPiA+ PiAgCj4gPj4gQEAgLTg2NSw2ICs4NzUsNyBAQCBzdGF0aWMgaW50IGtpbWFnZV9sb2FkX2NyYXNo X3NlZ21lbnQoc3RydWN0IGtpbWFnZSAqaW1hZ2UsCj4gPj4gIAkJCXJlc3VsdCAgPSAtRU5PTUVN Owo+ID4+ICAJCQlnb3RvIG91dDsKPiA+PiAgCQl9Cj4gPj4gKwkJYXJjaF9rZXhlY19wb3N0X2Fs bG9jX3BhZ2VzKHBhZ2VfYWRkcmVzcyhwYWdlKSwgMSwgMCk7Cj4gPj4gIAkJcHRyID0ga21hcChw YWdlKTsKPiA+PiAgCQlwdHIgKz0gbWFkZHIgJiB+UEFHRV9NQVNLOwo+ID4+ICAJCW1jaHVuayA9 IG1pbl90KHNpemVfdCwgbWJ5dGVzLAo+ID4+IEBAIC04ODIsNiArODkzLDcgQEAgc3RhdGljIGlu dCBraW1hZ2VfbG9hZF9jcmFzaF9zZWdtZW50KHN0cnVjdCBraW1hZ2UgKmltYWdlLAo+ID4+ICAJ CQlyZXN1bHQgPSBjb3B5X2Zyb21fdXNlcihwdHIsIGJ1ZiwgdWNodW5rKTsKPiA+PiAgCQlrZXhl Y19mbHVzaF9pY2FjaGVfcGFnZShwYWdlKTsKPiA+PiAgCQlrdW5tYXAocGFnZSk7Cj4gPj4gKwkJ YXJjaF9rZXhlY19wcmVfZnJlZV9wYWdlcyhwYWdlX2FkZHJlc3MocGFnZSksIDEpOwo+ID4+ICAJ CWlmIChyZXN1bHQpIHsKPiA+PiAgCQkJcmVzdWx0ID0gLUVGQVVMVDsKPiA+PiAgCQkJZ290byBv dXQ7Cj4gPj4gLS0gCj4gPj4gMi45LjUKPiA+Pgo+ID4+Cj4gPj4gX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX18KPiA+PiBrZXhlYyBtYWlsaW5nIGxpc3QKPiA+ PiBrZXhlY0BsaXN0cy5pbmZyYWRlYWQub3JnCj4gPj4gaHR0cDovL2xpc3RzLmluZnJhZGVhZC5v cmcvbWFpbG1hbi9saXN0aW5mby9rZXhlYwpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fXwppb21tdSBtYWlsaW5nIGxpc3QKaW9tbXVAbGlzdHMubGludXgtZm91 bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlz dGluZm8vaW9tbXU=