This commit adds arch/x86/include/asm/sgx_arch.h that contains definitions for data structures used by the SGX.
Signed-off-by: Jarkko Sakkinen <[email protected]> Co-developed-by: Suresh Siddha <[email protected]> --- arch/x86/include/asm/sgx_arch.h | 183 ++++++++++++++++++++++++++++++++ 1 file changed, 183 insertions(+) create mode 100644 arch/x86/include/asm/sgx_arch.h diff --git a/arch/x86/include/asm/sgx_arch.h b/arch/x86/include/asm/sgx_arch.h new file mode 100644 index 000000000000..41a37eaa3f51 --- /dev/null +++ b/arch/x86/include/asm/sgx_arch.h @@ -0,0 +1,183 @@ +// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) +// Copyright(c) 2016-17 Intel Corporation. + +#ifndef _ASM_X86_SGX_ARCH_H +#define _ASM_X86_SGX_ARCH_H + +#include <linux/types.h> + +#define SGX_CPUID 0x12 + +enum sgx_cpuid { + SGX_CPUID_CAPABILITIES = 0, + SGX_CPUID_ATTRIBUTES = 1, + SGX_CPUID_EPC_BANKS = 2, +}; + +#define SGX_SSA_GPRS_SIZE 182 +#define SGX_SSA_MISC_EXINFO_SIZE 16 + +enum sgx_misc { + SGX_MISC_EXINFO = 0x01, +}; + +#define SGX_MISC_RESERVED_MASK 0xFFFFFFFFFFFFFFFEL + +enum sgx_attribute { + SGX_ATTR_DEBUG = 0x02, + SGX_ATTR_MODE64BIT = 0x04, + SGX_ATTR_PROVISIONKEY = 0x10, + SGX_ATTR_EINITTOKENKEY = 0x20, +}; + +#define SGX_ATTR_RESERVED_MASK 0xFFFFFFFFFFFFFFC9L + +#define SGX_SECS_RESERVED1_SIZE 24 +#define SGX_SECS_RESERVED2_SIZE 32 +#define SGX_SECS_RESERVED3_SIZE 96 +#define SGX_SECS_RESERVED4_SIZE 3836 + +struct sgx_secs { + uint64_t size; + uint64_t base; + uint32_t ssaframesize; + uint32_t miscselect; + uint8_t reserved1[SGX_SECS_RESERVED1_SIZE]; + uint64_t attributes; + uint64_t xfrm; + uint32_t mrenclave[8]; + uint8_t reserved2[SGX_SECS_RESERVED2_SIZE]; + uint32_t mrsigner[8]; + uint8_t reserved3[SGX_SECS_RESERVED3_SIZE]; + uint16_t isvvprodid; + uint16_t isvsvn; + uint8_t reserved4[SGX_SECS_RESERVED4_SIZE]; +} __packed __aligned(4096); + +enum sgx_tcs_flags { + SGX_TCS_DBGOPTIN = 0x01, /* cleared on EADD */ +}; + +#define SGX_TCS_RESERVED_MASK 0xFFFFFFFFFFFFFFFEL + +struct sgx_tcs { + uint64_t state; + uint64_t flags; + uint64_t ossa; + uint32_t cssa; + uint32_t nssa; + uint64_t oentry; + uint64_t aep; + uint64_t ofsbase; + uint64_t ogsbase; + uint32_t fslimit; + uint32_t gslimit; + uint64_t reserved[503]; +} __packed __aligned(4096); + +struct sgx_pageinfo { + uint64_t linaddr; + uint64_t srcpge; + union { + uint64_t secinfo; + uint64_t pcmd; + }; + uint64_t secs; +} __packed __aligned(32); + + +#define SGX_SECINFO_PERMISSION_MASK 0x0000000000000007L +#define SGX_SECINFO_PAGE_TYPE_MASK 0x000000000000FF00L +#define SGX_SECINFO_RESERVED_MASK 0xFFFFFFFFFFFF00F8L + +enum sgx_page_type { + SGX_PAGE_TYPE_SECS = 0x00, + SGX_PAGE_TYPE_TCS = 0x01, + SGX_PAGE_TYPE_REG = 0x02, + SGX_PAGE_TYPE_VA = 0x03, + SGX_PAGE_TYPE_TRIM = 0x04, +}; + +enum sgx_secinfo_flags { + SGX_SECINFO_R = 0x01, + SGX_SECINFO_W = 0x02, + SGX_SECINFO_X = 0x04, + SGX_SECINFO_SECS = (SGX_PAGE_TYPE_SECS << 8), + SGX_SECINFO_TCS = (SGX_PAGE_TYPE_TCS << 8), + SGX_SECINFO_REG = (SGX_PAGE_TYPE_REG << 8), + SGX_SECINFO_VA = (SGX_PAGE_TYPE_VA << 8), + SGX_SECINFO_TRIM = (SGX_PAGE_TYPE_TRIM << 8), +}; + +struct sgx_secinfo { + uint64_t flags; + uint64_t reserved[7]; +} __packed __aligned(64); + +struct sgx_pcmd { + struct sgx_secinfo secinfo; + uint64_t enclave_id; + uint8_t reserved[40]; + uint8_t mac[16]; +} __packed __aligned(128); + +#define SGX_MODULUS_SIZE 384 + +struct sgx_sigstruct_header { + uint64_t header1[2]; + uint32_t vendor; + uint32_t date; + uint64_t header2[2]; + uint32_t swdefined; + uint8_t reserved1[84]; +} __packed; + +struct sgx_sigstruct_body { + uint32_t miscselect; + uint32_t miscmask; + uint8_t reserved2[20]; + uint64_t attributes; + uint64_t xfrm; + uint8_t attributemask[16]; + uint8_t mrenclave[32]; + uint8_t reserved3[32]; + uint16_t isvprodid; + uint16_t isvsvn; +} __packed; + +struct sgx_sigstruct { + struct sgx_sigstruct_header header; + uint8_t modulus[SGX_MODULUS_SIZE]; + uint32_t exponent; + uint8_t signature[SGX_MODULUS_SIZE]; + struct sgx_sigstruct_body body; + uint8_t reserved4[12]; + uint8_t q1[SGX_MODULUS_SIZE]; + uint8_t q2[SGX_MODULUS_SIZE]; +} __packed __aligned(4096); + +struct sgx_einittoken_payload { + uint32_t valid; + uint32_t reserved1[11]; + uint64_t attributes; + uint64_t xfrm; + uint8_t mrenclave[32]; + uint8_t reserved2[32]; + uint8_t mrsigner[32]; + uint8_t reserved3[32]; +} __packed; + +struct sgx_einittoken { + struct sgx_einittoken_payload payload; + uint8_t cpusvnle[16]; + uint16_t isvprodidle; + uint16_t isvsvnle; + uint8_t reserved2[24]; + uint32_t maskedmiscselectle; + uint64_t maskedattributesle; + uint64_t maskedxfrmle; + uint8_t keyid[32]; + uint8_t mac[16]; +} __packed __aligned(512); + +#endif /* _ASM_X86_SGX_ARCH_H */ -- 2.17.1
