diff options
Diffstat (limited to 'arch/x86/include/uapi/asm/sgx.h')
| -rw-r--r-- | arch/x86/include/uapi/asm/sgx.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/x86/include/uapi/asm/sgx.h b/arch/x86/include/uapi/asm/sgx.h index f4b81587e90b..2dd35bbdc822 100644 --- a/arch/x86/include/uapi/asm/sgx.h +++ b/arch/x86/include/uapi/asm/sgx.h @@ -29,6 +29,12 @@ enum sgx_page_flags { _IOW(SGX_MAGIC, 0x03, struct sgx_enclave_provision) #define SGX_IOC_VEPC_REMOVE_ALL \ _IO(SGX_MAGIC, 0x04) +#define SGX_IOC_ENCLAVE_RESTRICT_PERMISSIONS \ + _IOWR(SGX_MAGIC, 0x05, struct sgx_enclave_restrict_permissions) +#define SGX_IOC_ENCLAVE_MODIFY_TYPES \ + _IOWR(SGX_MAGIC, 0x06, struct sgx_enclave_modify_types) +#define SGX_IOC_ENCLAVE_REMOVE_PAGES \ + _IOWR(SGX_MAGIC, 0x07, struct sgx_enclave_remove_pages) /** * struct sgx_enclave_create - parameter structure for the @@ -76,6 +82,62 @@ struct sgx_enclave_provision { __u64 fd; }; +/** + * struct sgx_enclave_restrict_permissions - parameters for ioctl + * %SGX_IOC_ENCLAVE_RESTRICT_PERMISSIONS + * @offset: starting page offset (page aligned relative to enclave base + * address defined in SECS) + * @length: length of memory (multiple of the page size) + * @permissions:new permission bits for pages in range described by @offset + * and @length + * @result: (output) SGX result code of ENCLS[EMODPR] function + * @count: (output) bytes successfully changed (multiple of page size) + */ +struct sgx_enclave_restrict_permissions { + __u64 offset; + __u64 length; + __u64 permissions; + __u64 result; + __u64 count; +}; + +/** + * struct sgx_enclave_modify_types - parameters for ioctl + * %SGX_IOC_ENCLAVE_MODIFY_TYPES + * @offset: starting page offset (page aligned relative to enclave base + * address defined in SECS) + * @length: length of memory (multiple of the page size) + * @page_type: new type for pages in range described by @offset and @length + * @result: (output) SGX result code of ENCLS[EMODT] function + * @count: (output) bytes successfully changed (multiple of page size) + */ +struct sgx_enclave_modify_types { + __u64 offset; + __u64 length; + __u64 page_type; + __u64 result; + __u64 count; +}; + +/** + * struct sgx_enclave_remove_pages - %SGX_IOC_ENCLAVE_REMOVE_PAGES parameters + * @offset: starting page offset (page aligned relative to enclave base + * address defined in SECS) + * @length: length of memory (multiple of the page size) + * @count: (output) bytes successfully changed (multiple of page size) + * + * Regular (PT_REG) or TCS (PT_TCS) can be removed from an initialized + * enclave if the system supports SGX2. First, the %SGX_IOC_ENCLAVE_MODIFY_TYPES + * ioctl() should be used to change the page type to PT_TRIM. After that + * succeeds ENCLU[EACCEPT] should be run from within the enclave and then + * %SGX_IOC_ENCLAVE_REMOVE_PAGES can be used to complete the page removal. + */ +struct sgx_enclave_remove_pages { + __u64 offset; + __u64 length; + __u64 count; +}; + struct sgx_enclave_run; /** |