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From: Topi Miettinen <toiwoton@gmail.com>
To: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
	Andy Lutomirski <luto@amacapital.net>
Cc: Jethro Beekman <jethro@fortanix.com>,
	Casey Schaufler <casey@schaufler-ca.com>,
	Andy Lutomirski <luto@kernel.org>,
	casey.schaufler@intel.com,
	Sean Christopherson <sean.j.christopherson@intel.com>,
	linux-sgx@vger.kernel.org, "Svahn, Kai" <kai.svahn@intel.com>,
	"Schlobohm, Bruce" <bruce.schlobohm@intel.com>,
	Stephen Smalley <sds@tycho.nsa.gov>,
	Haitao Huang <haitao.huang@linux.intel.com>,
	ben@decadent.org.uk
Subject: Re: [PATCH 2/4] x86/sgx: Put enclaves into anonymous files
Date: Tue, 7 Apr 2020 12:04:58 +0300	[thread overview]
Message-ID: <ed382297-1488-1cdc-bd3f-a8a45de6c488@gmail.com> (raw)
In-Reply-To: <20200406212434.GA34134@linux.intel.com>

Please correct me if I'm wrong, but isn't it the goal of SGX to let a 
(suitably privileged) process designate some of its memory areas as part 
of SGX enclave? If so, why don't you simply add a system call to do so, 
such as

int sgx_mprotect(void *start, size_t length, int prot, u64 sgx_flags);

like existing pkey_mprotect()? Or add a flag PROT_SGX to mprotect() like 
existing PROT_SAO/PROT_SEM?

-Topi


  parent reply	other threads:[~2020-04-07  9:05 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
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 [this message]
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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