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Diffstat (limited to '0024-Documentation-x86-Introduce-enclave-runtime-manageme.patch')
| -rw-r--r-- | 0024-Documentation-x86-Introduce-enclave-runtime-manageme.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/0024-Documentation-x86-Introduce-enclave-runtime-manageme.patch b/0024-Documentation-x86-Introduce-enclave-runtime-manageme.patch new file mode 100644 index 000000000000..381c703a49aa --- /dev/null +++ b/0024-Documentation-x86-Introduce-enclave-runtime-manageme.patch @@ -0,0 +1,47 @@ +From 20acb57bc235f289b2d083a408d134a0db676ed1 Mon Sep 17 00:00:00 2001 +From: Reinette Chatre <reinette.chatre@intel.com> +Date: Mon, 7 Feb 2022 16:45:46 -0800 +Subject: [PATCH 24/34] Documentation/x86: Introduce enclave runtime management + section + +Enclave runtime management is introduced following the pattern +of the section describing enclave building. Provide a brief +summary of enclave runtime management, pointing to the functions +implementing the ioctl()s that will contain details within their +kernel-doc. + +Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> +--- + Documentation/x86/sgx.rst | 16 ++++++++++++++++ + 1 file changed, 16 insertions(+) + +diff --git a/Documentation/x86/sgx.rst b/Documentation/x86/sgx.rst +index 9df620b59f83..4059efbb4d2e 100644 +--- a/Documentation/x86/sgx.rst ++++ b/Documentation/x86/sgx.rst +@@ -138,6 +138,22 @@ pages and establish enclave page permissions. + sgx_ioc_enclave_init + sgx_ioc_enclave_provision + ++Enclave runtime management ++-------------------------- ++ ++Systems supporting SGX2 additionally support changes to initialized ++enclaves: modifying enclave page permissions and type, and dynamically ++adding and removing of enclave pages. When an enclave accesses an address ++within its address range that does not have a backing page then a new ++regular page will be dynamically added to the enclave. The enclave is ++still required to run EACCEPT on the new page before it can be used. ++ ++.. kernel-doc:: arch/x86/kernel/cpu/sgx/ioctl.c ++ :functions: sgx_ioc_enclave_relax_perm ++ sgx_ioc_enclave_restrict_perm ++ sgx_ioc_enclave_modt ++ sgx_ioc_enclave_remove_pages ++ + Enclave vDSO + ------------ + +-- +2.35.1 + |