From: "Sakkinen, Jarkko" <jarkko.sakkinen@intel.com>
To: "tglx@linutronix.de" <tglx@linutronix.de>,
"Schofield, Alison" <alison.schofield@intel.com>,
"dhowells@redhat.com" <dhowells@redhat.com>
Cc: "Shutemov, Kirill" <kirill.shutemov@intel.com>,
"keyrings@vger.kernel.org" <keyrings@vger.kernel.org>,
"jmorris@namei.org" <jmorris@namei.org>,
"Huang, Kai" <kai.huang@intel.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-security-module@vger.kernel.org"
<linux-security-module@vger.kernel.org>,
"x86@kernel.org" <x86@kernel.org>,
"hpa@zytor.com" <hpa@zytor.com>,
"mingo@redhat.com" <mingo@redhat.com>,
"Hansen, Dave" <dave.hansen@intel.com>,
"Nakajima, Jun" <jun.nakajima@intel.com>
Subject: Re: [RFC 10/12] x86/pconfig: Program memory encryption keys on a system-wide basis
Date: Mon, 10 Sep 2018 18:24:20 +0000 [thread overview]
Message-ID: <73c60d4f8a953476f1e29aaccbeb7f732c209190.camel@intel.com> (raw)
In-Reply-To: <0947e4ad711e8b7c1f581a446e808f514620b49b.1536356108.git.alison.schofield@intel.com>
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WARNING: multiple messages have this Message-ID (diff)
From: jarkko.sakkinen@intel.com (Sakkinen, Jarkko)
To: linux-security-module@vger.kernel.org
Subject: [RFC 10/12] x86/pconfig: Program memory encryption keys on a system-wide basis
Date: Mon, 10 Sep 2018 18:24:20 +0000 [thread overview]
Message-ID: <73c60d4f8a953476f1e29aaccbeb7f732c209190.camel@intel.com> (raw)
In-Reply-To: <0947e4ad711e8b7c1f581a446e808f514620b49b.1536356108.git.alison.schofield@intel.com>
On Fri, 2018-09-07 at 15:38 -0700, Alison Schofield wrote:
> The kernel manages the MKTME (Multi-Key Total Memory Encryption) Keys
> as a system wide single pool of keys. The hardware, however, manages
> the keys on a per physical package basis. Each physical package
> maintains a key table that all CPU's in that package share.
>
> In order to maintain the consistent, system wide view that the kernel
> requires, program all physical packages during a key program request.
>
> Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Just kind of checking that are you talking about multiple cores in
a single package or really multiple packages?
/Jarkko
WARNING: multiple messages have this Message-ID (diff)
From: "Sakkinen, Jarkko" <jarkko.sakkinen@intel.com>
To: "tglx@linutronix.de" <tglx@linutronix.de>,
"Schofield, Alison" <alison.schofield@intel.com>,
"dhowells@redhat.com" <dhowells@redhat.com>
Cc: "Shutemov, Kirill" <kirill.shutemov@intel.com>,
"keyrings@vger.kernel.org" <keyrings@vger.kernel.org>,
"jmorris@namei.org" <jmorris@namei.org>,
"Huang, Kai" <kai.huang@intel.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-security-module@vger.kernel.org"
<linux-security-module@vger.kernel.org>,
"x86@kernel.org" <x86@kernel.org>,
"hpa@zytor.com" <hpa@zytor.com>,
"mingo@redhat.com" <mingo@redhat.com>,
"Hansen, Dave" <dave.hansen@intel.com>,
"Nakajima, Jun" <jun.nakajima@intel.com>
Subject: Re: [RFC 10/12] x86/pconfig: Program memory encryption keys on a system-wide basis
Date: Mon, 10 Sep 2018 18:24:20 +0000 [thread overview]
Message-ID: <73c60d4f8a953476f1e29aaccbeb7f732c209190.camel@intel.com> (raw)
In-Reply-To: <0947e4ad711e8b7c1f581a446e808f514620b49b.1536356108.git.alison.schofield@intel.com>
On Fri, 2018-09-07 at 15:38 -0700, Alison Schofield wrote:
> The kernel manages the MKTME (Multi-Key Total Memory Encryption) Keys
> as a system wide single pool of keys. The hardware, however, manages
> the keys on a per physical package basis. Each physical package
> maintains a key table that all CPU's in that package share.
>
> In order to maintain the consistent, system wide view that the kernel
> requires, program all physical packages during a key program request.
>
> Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Just kind of checking that are you talking about multiple cores in
a single package or really multiple packages?
/Jarkko
next prev parent reply other threads:[~2018-09-10 18:24 UTC|newest]
Thread overview: 159+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-07 22:23 [RFC 00/12] Multi-Key Total Memory Encryption API (MKTME) Alison Schofield
2018-09-07 22:23 ` Alison Schofield
2018-09-07 22:23 ` Alison Schofield
2018-09-07 22:34 ` [RFC 01/12] docs/x86: Document the Multi-Key Total Memory Encryption API Alison Schofield
2018-09-08 18:44 ` Randy Dunlap
2018-09-08 18:44 ` Randy Dunlap
2018-09-08 18:44 ` Randy Dunlap
2018-09-10 1:28 ` Huang, Kai
2018-09-10 1:28 ` Huang, Kai
2018-09-10 1:28 ` Huang, Kai
2018-09-11 0:13 ` Alison Schofield
2018-09-11 0:13 ` Alison Schofield
2018-09-11 0:13 ` Alison Schofield
2018-09-11 0:33 ` Huang, Kai
2018-09-11 0:33 ` Huang, Kai
2018-09-11 0:33 ` Huang, Kai
2018-09-11 0:45 ` Alison Schofield
2018-09-11 0:45 ` Alison Schofield
2018-09-11 0:45 ` Alison Schofield
2018-09-11 1:14 ` Huang, Kai
2018-09-11 1:14 ` Huang, Kai
2018-09-11 1:14 ` Huang, Kai
2018-09-11 0:14 ` Huang, Kai
2018-09-11 0:14 ` Huang, Kai
2018-09-11 0:14 ` Huang, Kai
2018-09-10 17:32 ` Sakkinen, Jarkko
2018-09-10 17:32 ` Sakkinen, Jarkko
2018-09-10 17:32 ` Sakkinen, Jarkko
2018-09-11 0:19 ` Alison Schofield
2018-09-11 0:19 ` Alison Schofield
2018-09-11 0:19 ` Alison Schofield
2018-09-07 22:34 ` [RFC 02/12] mm: Generalize the mprotect implementation to support extensions Alison Schofield
2018-09-07 22:34 ` Alison Schofield
2018-09-07 22:34 ` Alison Schofield
2018-09-10 10:12 ` Jarkko Sakkinen
2018-09-10 10:12 ` Jarkko Sakkinen
2018-09-10 10:12 ` Jarkko Sakkinen
2018-09-11 0:34 ` Alison Schofield
2018-09-11 0:34 ` Alison Schofield
2018-09-11 0:34 ` Alison Schofield
2018-09-07 22:34 ` [RFC 03/12] syscall/x86: Wire up a new system call for memory encryption keys Alison Schofield
2018-09-07 22:34 ` Alison Schofield
2018-09-07 22:34 ` Alison Schofield
2018-09-07 22:36 ` [RFC 04/12] x86/mm: Add helper functions to manage " Alison Schofield
2018-09-07 22:36 ` Alison Schofield
2018-09-07 22:36 ` Alison Schofield
2018-09-10 2:56 ` Huang, Kai
2018-09-10 2:56 ` Huang, Kai
2018-09-10 2:56 ` Huang, Kai
2018-09-10 23:37 ` Huang, Kai
2018-09-10 23:37 ` Huang, Kai
2018-09-10 23:37 ` Huang, Kai
2018-09-10 23:41 ` Alison Schofield
2018-09-10 23:41 ` Alison Schofield
2018-09-10 23:41 ` Alison Schofield
2018-09-10 17:37 ` Sakkinen, Jarkko
2018-09-07 22:36 ` [RFC 05/12] x86/mm: Add a helper function to set keyid bits in encrypted VMA's Alison Schofield
2018-09-07 22:36 ` Alison Schofield
2018-09-07 22:36 ` Alison Schofield
2018-09-10 17:57 ` Sakkinen, Jarkko
2018-09-10 17:57 ` Sakkinen, Jarkko
2018-09-10 17:57 ` Sakkinen, Jarkko
2018-09-07 22:36 ` [RFC 06/12] mm: Add the encrypt_mprotect() system call Alison Schofield
2018-09-10 18:02 ` Jarkko Sakkinen
2018-09-10 18:02 ` Jarkko Sakkinen
2018-09-10 18:02 ` Jarkko Sakkinen
2018-09-11 2:15 ` Alison Schofield
2018-09-11 2:15 ` Alison Schofield
2018-09-11 2:15 ` Alison Schofield
2018-09-07 22:37 ` [RFC 07/12] x86/mm: Add helper functions to track encrypted VMA's Alison Schofield
2018-09-07 22:37 ` Alison Schofield
2018-09-07 22:37 ` Alison Schofield
2018-09-10 3:17 ` Huang, Kai
2018-09-10 3:17 ` Huang, Kai
2018-09-07 22:37 ` [RFC 08/12] mm: Track VMA's in use for each memory encryption keyid Alison Schofield
2018-09-07 22:37 ` Alison Schofield
2018-09-07 22:37 ` Alison Schofield
2018-09-10 18:20 ` Jarkko Sakkinen
2018-09-10 18:20 ` Jarkko Sakkinen
2018-09-10 18:20 ` Jarkko Sakkinen
2018-09-11 2:39 ` Alison Schofield
2018-09-11 2:39 ` Alison Schofield
2018-09-11 2:39 ` Alison Schofield
2018-09-07 22:37 ` [RFC 09/12] mm: Restrict memory encryption to anonymous VMA's Alison Schofield
2018-09-07 22:37 ` Alison Schofield
2018-09-07 22:37 ` Alison Schofield
2018-09-10 18:21 ` Sakkinen, Jarkko
2018-09-10 18:21 ` Sakkinen, Jarkko
2018-09-10 18:21 ` Sakkinen, Jarkko
2018-09-10 18:57 ` Dave Hansen
2018-09-10 18:57 ` Dave Hansen
2018-09-10 18:57 ` Dave Hansen
2018-09-10 21:07 ` Jarkko Sakkinen
2018-09-10 21:07 ` Jarkko Sakkinen
2018-09-10 21:07 ` Jarkko Sakkinen
2018-09-10 21:09 ` Dave Hansen
2018-09-10 21:09 ` Dave Hansen
2018-09-10 21:09 ` Dave Hansen
2018-09-07 22:38 ` [RFC 10/12] x86/pconfig: Program memory encryption keys on a system-wide basis Alison Schofield
2018-09-07 22:38 ` Alison Schofield
2018-09-07 22:38 ` Alison Schofield
2018-09-10 1:46 ` Huang, Kai
2018-09-10 1:46 ` Huang, Kai
2018-09-10 18:24 ` Sakkinen, Jarkko [this message]
2018-09-10 18:24 ` Sakkinen, Jarkko
2018-09-10 18:24 ` Sakkinen, Jarkko
2018-09-11 2:46 ` Alison Schofield
2018-09-11 2:46 ` Alison Schofield
2018-09-11 2:46 ` Alison Schofield
2018-09-11 14:31 ` Jarkko Sakkinen
2018-09-11 14:31 ` Jarkko Sakkinen
2018-09-11 14:31 ` Jarkko Sakkinen
2018-09-07 22:38 ` [RFC 11/12] keys/mktme: Add a new key service type for memory encryption keys Alison Schofield
2018-09-07 22:38 ` Alison Schofield
2018-09-07 22:38 ` Alison Schofield
2018-09-10 3:29 ` Huang, Kai
2018-09-10 3:29 ` Huang, Kai
2018-09-10 3:29 ` Huang, Kai
2018-09-10 21:47 ` Alison Schofield
2018-09-10 21:47 ` Alison Schofield
2018-09-10 21:47 ` Alison Schofield
2018-09-15 0:06 ` Alison Schofield
2018-09-15 0:06 ` Alison Schofield
2018-09-15 0:06 ` Alison Schofield
2018-09-17 10:48 ` Huang, Kai
2018-09-17 10:48 ` Huang, Kai
2018-09-17 10:48 ` Huang, Kai
2018-09-17 22:34 ` Huang, Kai
2018-09-17 22:34 ` Huang, Kai
2018-09-17 22:34 ` Huang, Kai
2018-09-07 22:39 ` [RFC 12/12] keys/mktme: Do not revoke in use " Alison Schofield
2018-09-07 22:39 ` Alison Schofield
2018-09-07 22:39 ` Alison Schofield
2018-09-10 1:10 ` [RFC 00/12] Multi-Key Total Memory Encryption API (MKTME) Huang, Kai
2018-09-10 1:10 ` Huang, Kai
2018-09-10 19:10 ` Alison Schofield
2018-09-10 19:10 ` Alison Schofield
2018-09-10 19:10 ` Alison Schofield
2018-09-11 3:15 ` Huang, Kai
2018-09-11 3:15 ` Huang, Kai
2018-09-11 3:15 ` Huang, Kai
2018-09-10 17:29 ` Sakkinen, Jarkko
2018-09-10 17:29 ` Sakkinen, Jarkko
2018-09-10 17:29 ` Sakkinen, Jarkko
2018-09-11 22:03 ` [RFC 11/12] keys/mktme: Add a new key service type for memory encryption keys David Howells
2018-09-11 22:03 ` David Howells
2018-09-11 22:03 ` David Howells
2018-09-11 22:39 ` Alison Schofield
2018-09-11 22:39 ` Alison Schofield
2018-09-11 22:39 ` Alison Schofield
2018-09-11 23:01 ` David Howells
2018-09-11 23:01 ` David Howells
2018-09-11 23:01 ` David Howells
2018-09-11 22:56 ` [RFC 04/12] x86/mm: Add helper functions to manage " David Howells
2018-09-11 22:56 ` David Howells
2018-09-11 22:56 ` David Howells
2018-09-12 11:12 ` [RFC 12/12] keys/mktme: Do not revoke in use " David Howells
2018-09-12 11:12 ` David Howells
2018-09-12 11:12 ` David Howells
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