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Diffstat (limited to 'original/uapi/asm-x86/asm/sgx.h')
| -rw-r--r-- | original/uapi/asm-x86/asm/sgx.h | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/original/uapi/asm-x86/asm/sgx.h b/original/uapi/asm-x86/asm/sgx.h deleted file mode 100644 index 9034f30..0000000 --- a/original/uapi/asm-x86/asm/sgx.h +++ /dev/null @@ -1,168 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -/* - * Copyright(c) 2016-20 Intel Corporation. - */ -#ifndef _UAPI_ASM_X86_SGX_H -#define _UAPI_ASM_X86_SGX_H - -#include <linux/types.h> -#include <linux/ioctl.h> - -/** - * enum sgx_page_flags - page control flags - * %SGX_PAGE_MEASURE: Measure the page contents with a sequence of - * ENCLS[EEXTEND] operations. - */ -enum sgx_page_flags { - SGX_PAGE_MEASURE = 0x01, -}; - -#define SGX_MAGIC 0xA4 - -#define SGX_IOC_ENCLAVE_CREATE \ - _IOW(SGX_MAGIC, 0x00, struct sgx_enclave_create) -#define SGX_IOC_ENCLAVE_ADD_PAGES \ - _IOWR(SGX_MAGIC, 0x01, struct sgx_enclave_add_pages) -#define SGX_IOC_ENCLAVE_INIT \ - _IOW(SGX_MAGIC, 0x02, struct sgx_enclave_init) -#define SGX_IOC_ENCLAVE_PROVISION \ - _IOW(SGX_MAGIC, 0x03, struct sgx_enclave_provision) - -/** - * struct sgx_enclave_create - parameter structure for the - * %SGX_IOC_ENCLAVE_CREATE ioctl - * @src: address for the SECS page data - */ -struct sgx_enclave_create { - __u64 src; -}; - -/** - * struct sgx_enclave_add_pages - parameter structure for the - * %SGX_IOC_ENCLAVE_ADD_PAGE ioctl - * @src: start address for the page data - * @offset: starting page offset - * @length: length of the data (multiple of the page size) - * @secinfo: address for the SECINFO data - * @flags: page control flags - * @count: number of bytes added (multiple of the page size) - */ -struct sgx_enclave_add_pages { - __u64 src; - __u64 offset; - __u64 length; - __u64 secinfo; - __u64 flags; - __u64 count; -}; - -/** - * struct sgx_enclave_init - parameter structure for the - * %SGX_IOC_ENCLAVE_INIT ioctl - * @sigstruct: address for the SIGSTRUCT data - */ -struct sgx_enclave_init { - __u64 sigstruct; -}; - -/** - * struct sgx_enclave_provision - parameter structure for the - * %SGX_IOC_ENCLAVE_PROVISION ioctl - * @fd: file handle of /dev/sgx_provision - */ -struct sgx_enclave_provision { - __u64 fd; -}; - -struct sgx_enclave_run; - -/** - * typedef sgx_enclave_user_handler_t - Exit handler function accepted by - * __vdso_sgx_enter_enclave() - * @run: The run instance given by the caller - * - * The register parameters contain the snapshot of their values at enclave - * exit. An invalid ENCLU function number will cause -EINVAL to be returned - * to the caller. - * - * Return: - * - <= 0: The given value is returned back to the caller. - * - > 0: ENCLU function to invoke, either EENTER or ERESUME. - */ -typedef int (*sgx_enclave_user_handler_t)(long rdi, long rsi, long rdx, - long rsp, long r8, long r9, - struct sgx_enclave_run *run); - -/** - * struct sgx_enclave_run - the execution context of __vdso_sgx_enter_enclave() - * @tcs: TCS used to enter the enclave - * @function: The last seen ENCLU function (EENTER, ERESUME or EEXIT) - * @exception_vector: The interrupt vector of the exception - * @exception_error_code: The exception error code pulled out of the stack - * @exception_addr: The address that triggered the exception - * @user_handler: User provided callback run on exception - * @user_data: Data passed to the user handler - * @reserved Reserved for future extensions - * - * If @user_handler is provided, the handler will be invoked on all return paths - * of the normal flow. The user handler may transfer control, e.g. via a - * longjmp() call or a C++ exception, without returning to - * __vdso_sgx_enter_enclave(). - */ -struct sgx_enclave_run { - __u64 tcs; - __u32 function; - __u16 exception_vector; - __u16 exception_error_code; - __u64 exception_addr; - __u64 user_handler; - __u64 user_data; - __u8 reserved[216]; -}; - -/** - * typedef vdso_sgx_enter_enclave_t - Prototype for __vdso_sgx_enter_enclave(), - * a vDSO function to enter an SGX enclave. - * @rdi: Pass-through value for RDI - * @rsi: Pass-through value for RSI - * @rdx: Pass-through value for RDX - * @function: ENCLU function, must be EENTER or ERESUME - * @r8: Pass-through value for R8 - * @r9: Pass-through value for R9 - * @run: struct sgx_enclave_run, must be non-NULL - * - * NOTE: __vdso_sgx_enter_enclave() does not ensure full compliance with the - * x86-64 ABI, e.g. doesn't handle XSAVE state. Except for non-volatile - * general purpose registers, EFLAGS.DF, and RSP alignment, preserving/setting - * state in accordance with the x86-64 ABI is the responsibility of the enclave - * and its runtime, i.e. __vdso_sgx_enter_enclave() cannot be called from C - * code without careful consideration by both the enclave and its runtime. - * - * All general purpose registers except RAX, RBX and RCX are passed as-is to the - * enclave. RAX, RBX and RCX are consumed by EENTER and ERESUME and are loaded - * with @function, asynchronous exit pointer, and @run.tcs respectively. - * - * RBP and the stack are used to anchor __vdso_sgx_enter_enclave() to the - * pre-enclave state, e.g. to retrieve @run.exception and @run.user_handler - * after an enclave exit. All other registers are available for use by the - * enclave and its runtime, e.g. an enclave can push additional data onto the - * stack (and modify RSP) to pass information to the optional user handler (see - * below). - * - * Most exceptions reported on ENCLU, including those that occur within the - * enclave, are fixed up and reported synchronously instead of being delivered - * via a standard signal. Debug Exceptions (#DB) and Breakpoints (#BP) are - * never fixed up and are always delivered via standard signals. On synchrously - * reported exceptions, -EFAULT is returned and details about the exception are - * recorded in @run.exception, the optional sgx_enclave_exception struct. - * - * Return: - * - 0: ENCLU function was successfully executed. - * - -EINVAL: Invalid ENCL number (neither EENTER nor ERESUME). - */ -typedef int (*vdso_sgx_enter_enclave_t)(unsigned long rdi, unsigned long rsi, - unsigned long rdx, unsigned int function, - unsigned long r8, unsigned long r9, - struct sgx_enclave_run *run); - -#endif /* _UAPI_ASM_X86_SGX_H */ |