From: Andy Lutomirski <luto@kernel.org>
To: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: linux-sgx@vger.kernel.org, "Svahn, Kai" <kai.svahn@intel.com>,
"Schlobohm, Bruce" <bruce.schlobohm@intel.com>,
Andrew Lutomirski <luto@kernel.org>,
Stephen Smalley <sds@tycho.nsa.gov>,
Casey Schaufler <casey@schaufler-ca.com>,
Haitao Huang <haitao.huang@linux.intel.com>,
Sean Christopherson <sean.j.christopherson@intel.com>
Subject: Re: [PATCH 2/4] x86/sgx: Put enclaves into anonymous files
Date: Tue, 31 Mar 2020 10:39:38 -0700 [thread overview]
Message-ID: <CALCETrXz4YK9ubCAyBLm4BjqYEK-wt1491QPLDyumJe9t0LJ2A@mail.gmail.com> (raw)
In-Reply-To: <20200331114432.7593-3-jarkko.sakkinen@linux.intel.com>
On Tue, Mar 31, 2020 at 4:44 AM Jarkko Sakkinen
<jarkko.sakkinen@linux.intel.com> wrote:
>
> When creating an enclave attach it to an anonymous file. This prepares the
> code to have a separate interface at runtime, which can be published to the
> user space after the enclave has been fully initialized.
This isn't an objection per se, but I can't shake the feeling that
this seems ridiculous. This changes the type of object returned by
open() because, without this change, the old type was problematic.
So I have some questions:
- Can sgx just ignore the fs noexec option on the chardev inode's fs instead?
- Would SELinux users *want* to put a useful label on the inode? if
so, can they still accomplish whatever they were trying to accomplish
with this patch applied?
--Andy
next prev parent reply other threads:[~2020-03-31 17:39 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-31 11:44 [PATCH 0/4] Migrate enclave mapping to an anonymous inode Jarkko Sakkinen
2020-03-31 11:44 ` [PATCH 1/4] x86/sgx: Remove PROT_NONE branch from sgx_encl_may_map() Jarkko Sakkinen
2020-03-31 11:44 ` [PATCH 2/4] x86/sgx: Put enclaves into anonymous files Jarkko Sakkinen
2020-03-31 17:39 ` Andy Lutomirski [this message]
2020-04-01 0:24 ` Sean Christopherson
2020-04-02 21:41 ` Andy Lutomirski
2020-04-03 6:56 ` Jarkko Sakkinen
2020-04-03 6:59 ` Jarkko Sakkinen
2020-04-03 14:35 ` Casey Schaufler
2020-04-03 15:30 ` Jarkko Sakkinen
2020-04-03 15:50 ` Casey Schaufler
2020-04-03 22:08 ` Jarkko Sakkinen
2020-04-04 3:54 ` Andy Lutomirski
2020-04-04 5:46 ` Jethro Beekman
2020-04-04 7:27 ` Topi Miettinen
2020-04-04 9:20 ` Jarkko Sakkinen
2020-04-06 6:42 ` Jethro Beekman
2020-04-06 11:01 ` Topi Miettinen
2020-04-06 16:44 ` Andy Lutomirski
2020-04-06 17:17 ` Jethro Beekman
2020-04-06 18:55 ` Jarkko Sakkinen
2020-04-06 19:01 ` Jarkko Sakkinen
2020-04-06 19:53 ` Andy Lutomirski
2020-04-06 21:24 ` Jarkko Sakkinen
2020-04-06 23:18 ` Andy Lutomirski
2020-04-06 23:48 ` Jarkko Sakkinen
2020-04-07 7:15 ` Jethro Beekman
2020-04-07 8:48 ` Topi Miettinen
2020-04-07 16:52 ` Jarkko Sakkinen
2020-04-07 9:04 ` Topi Miettinen
2020-04-07 16:57 ` Jarkko Sakkinen
2020-04-07 16:59 ` Jarkko Sakkinen
2020-04-07 18:04 ` Jarkko Sakkinen
2020-04-07 19:54 ` Topi Miettinen
2020-04-08 13:40 ` Jarkko Sakkinen
2020-04-08 14:56 ` Sean Christopherson
2020-04-09 18:39 ` Jarkko Sakkinen
2020-04-08 21:15 ` Topi Miettinen
2020-04-08 21:29 ` Sean Christopherson
2020-11-19 7:23 ` Jethro Beekman
2020-11-19 16:09 ` Andy Lutomirski
2020-04-06 18:47 ` Jarkko Sakkinen
2020-04-04 9:22 ` Jarkko Sakkinen
2020-04-01 8:45 ` Jarkko Sakkinen
2020-03-31 11:44 ` [PATCH 3/4] x86/sgx: Move mmap() to the anonymous enclave file Jarkko Sakkinen
2020-03-31 11:44 ` [PATCH 4/4] x86/sgx: Hand over the enclave file to the user space Jarkko Sakkinen
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