From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: linux-sgx@vger.kernel.org
Cc: kai.svahn@intel.com, bruce.schlobohm@intel.com,
Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
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: [PATCH 0/4] Migrate enclave mapping to an anonymous inode
Date: Tue, 31 Mar 2020 14:44:28 +0300 [thread overview]
Message-ID: <20200331114432.7593-1-jarkko.sakkinen@linux.intel.com> (raw)
Given that distributions are converting /dev to noexec, there is no really
other option than to use an anonymous inode for the enclave run-time
representation.
This results the following constraints:
1. Enclave can be fully built and initialized by a process with hno
special privileges.
2. To run an initialized enclave, exec-from-mem is required.
This patche set segregates these responsibilities by keeping the build
interface in the device fd and moving the mapping interface to the
newly introduced enclave fd.
Cc: luto@kernel.org
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: Casey Schaufler <casey@schaufler-ca.com>
Cc: Haitao Huang <haitao.huang@linux.intel.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Jarkko Sakkinen (4):
x86/sgx: Remove PROT_NONE branch from sgx_encl_may_map().
x86/sgx: Put enclaves into anonymous files
x86/sgx: Move mmap() to the anonymous enclave file
x86/sgx: Hand over the enclave file to the user space
Documentation/x86/sgx.rst | 13 ++--
arch/x86/include/uapi/asm/sgx.h | 2 +
arch/x86/kernel/cpu/sgx/driver.c | 119 +++++++++++++++++++----------
arch/x86/kernel/cpu/sgx/encl.c | 7 +-
arch/x86/kernel/cpu/sgx/ioctl.c | 64 +++++++++-------
tools/testing/selftests/sgx/load.c | 19 +++--
tools/testing/selftests/sgx/main.c | 3 +-
tools/testing/selftests/sgx/main.h | 3 +-
8 files changed, 136 insertions(+), 94 deletions(-)
--
2.25.1
next reply other threads:[~2020-03-31 11:44 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-31 11:44 Jarkko Sakkinen [this message]
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
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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