From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com ([209.132.183.28]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1g5piL-0002pQ-Bg for kexec@lists.infradead.org; Fri, 28 Sep 2018 10:11:37 +0000 Subject: Re: [PATCH v7 RESEND 2/4] kexec: allocate unencrypted control pages for kdump in case SME is enabled References: <20180927071954.29615-1-lijiang@redhat.com> <20180927071954.29615-3-lijiang@redhat.com> <20180927165323.GC19779@zn.tnic> <20180928075654.GA20768@zn.tnic> From: lijiang Message-ID: <2c5000d8-9f20-cc85-6d41-d6ece314c6ba@redhat.com> Date: Fri, 28 Sep 2018 18:09:04 +0800 MIME-Version: 1.0 In-Reply-To: <20180928075654.GA20768@zn.tnic> Content-Language: en-US List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Borislav Petkov Cc: thomas.lendacky@amd.com, jroedel@suse.de, brijesh.singh@amd.com, bhe@redhat.com, tiwai@suse.de, x86@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, mingo@redhat.com, baiyaowei@cmss.chinamobile.com, hpa@zytor.com, bhelgaas@google.com, tglx@linutronix.de, dyoung@redhat.com, akpm@linux-foundation.org, dan.j.williams@intel.com 5ZyoIDIwMTjlubQwOeaciDI45pelIDE1OjU3LCBCb3Jpc2xhdiBQZXRrb3Yg5YaZ6YGTOgo+IE9u IEZyaSwgU2VwIDI4LCAyMDE4IGF0IDExOjUyOjIxQU0gKzA4MDAsIGxpamlhbmcgd3JvdGU6Cj4+ IFRoZXJlIGFyZSB0d28gZnVuY3Rpb25zIHRoYXQgYXJlIHVzdWFsbHkgY2FsbGVkIGluIHBhaXJz LCB0aGV5IGFyZToKPj4gYXJjaF9rZXhlY19wb3N0X2FsbG9jX3BhZ2VzKCkgYW5kIGFyY2hfa2V4 ZWNfcHJlX2ZyZWVfcGFnZXMoKS4KPj4KPj4gT25lIG1hcmtzIHRoZSBwYWdlcyBhcyBkZWNyeXB0 ZWQsIGFub3RoZXIgb25lIG1hcmtzIHRoZSBwYWdlcyBhcyBlbmNyeXB0ZWQuCj4+Cj4+IEJ1dCBm b3IgdGhlIGNyYXNoIGNvbnRyb2wgcGFnZXMsIG5vIG5lZWQgdG8gY2FsbCBhcmNoX2tleGVjX3By ZV9mcmVlX3BhZ2VzKCksCj4+IHRoZXJlIGFyZSB0aHJlZSByZWFzb25zOgo+PiAxLiBDcmFzaCBw YWdlcyBhcmUgcmVzZXJ2ZWQgaW4gbWVtYmxvY2ssIHRoZXNlIHBhZ2VzIGFyZSBvbmx5IHVzZWQg Ynkga2R1bXAsCj4+ICAgIG5vIG90aGVyIHBlb3BsZSB1c2VzIHRoZXNlIHBhZ2VzOwo+Pgo+PiAy LiBXaGVuZXZlciBjcmFzaCBwYWdlcyBhcmUgYWxsb2NhdGVkLCB0aGVzZSBwYWdlcyBhcmUgYWx3 YXlzIG1hcmtlZCBhcwo+PiAgICBkZWNyeXB0ZWQod2hlbiBTTUUgaXMgYWN0aXZlKTsKPj4KPj4g My4gSWYgd2UgcGxhbiB0byBjYWxsIHRoZSBhcmNoX2tleGVfcHJlX2ZyZWVfcGFnZXMoKSwgd2Ug aGF2ZSB0byBzdG9yZSB0aGVzZQo+PiBwYWdlcyB0byBzb21ld2hlcmUsIHdoaWNoIHdpbGwgaGF2 ZSBtb3JlIGNvZGUgY2hhbmdlcy4KPiAKPiBJIGRvbid0IHRoaW5rIGFueSBvZiB0aGF0IGFuc3dl cnMgdGhlIHF1ZXN0aW9uICp3aHkqIGNvbnRyb2wgcGFnZXMgZG8KPiBub3QgbmVlZCB0byBiZSBt YXJrZWQgZW5jcnlwdGVkIGFnYWluLiBBbmQgSSB0aGluayB0aGUgcmVhc29uIGlzIHNpbXBsZToK PiBiZWNhdXNlIHlvdSBkb24ndCByZWFsbHkgbmVlZCB0bywgYmVjYXVzZSBvbmNlIHRoZSBjcmFz aCBrZXJuZWwgaXMgZG9uZSwKPiB5b3UgcmVib290IHRoZSBib3guCj4gClRoYW5rcyBmb3IgeW91 ciBjb21tZW50LCB5b3VyIGV4cGxhbmF0aW9uIGlzIHZlcnkgZ29vZC4KCkJ1dCB0aGVyZSBhcmUg YW5vdGhlciBjYXNlcywgd2UgbWlnaHQgbG9hZCBvciB1bmxvYWQgdGhlIGNyYXNoIGtlcm5lbCBp bWFnZSBhbmQKaW5pdHJhZm1zLCBtYXliZSBhZ2FpbiBhbmQgYWdhaW4gZm9yIHRlc3Qgb3IgZGVi dWcsIHdlIGRvbid0IHJlYm9vdCBhdCBvbmNlLiBGb3IKZXhhbXBsZSwgcmVwZWF0IHRoZSBmb2xs b3dpbmcgc3RlcHM6CgpzeXN0ZW1jdGwgc3RhcnQga2R1bXAuc2VydmljZQouLi4Kc3lzdGVtY3Rs IHN0b3Aga2R1bXAuc2VydmljZQoKQnV0IHdlIGFsd2F5cyBtYXJrIHRoZXNlIHBhZ2VzIGFzIGRl Y3J5cHRlZCB3aGVuZXZlciB0aGVzZSBjb250cm9sIHBhZ2VzIGFyZQphbGxvY2F0ZWQsIGJlY2F1 c2Ugb3RoZXIgcGVvcGxlIGNhbid0IHVzZSB0aGVzZSBwYWdlcyhyZXNlcnZlZCBtZW1vcnkpLCB3 aGljaAphcmUgb25seSB1c2VkIGJ5IGtkdW1wLCBzbyBubyBuZWVkIHRvIG1hcmsgdGhlc2UgcGFn ZXMgYXMgZW5jcnlwdGVkIGFnYWluLgoKUmVnYXJkcywKTGlhbmJvCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwprZXhlYyBtYWlsaW5nIGxpc3QKa2V4ZWNA bGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2tleGVjCg==