관리-도구

편집 파일: intel_pconfig.h

#ifndef _ASM_X86_INTEL_PCONFIG_H #define _ASM_X86_INTEL_PCONFIG_H #include <asm/asm.h> #include <asm/processor.h> enum pconfig_target { INVALID_TARGET = 0, MKTME_TARGET = 1, PCONFIG_TARGET_NR }; int pconfig_target_supported(enum pconfig_target target); enum pconfig_leaf { MKTME_KEY_PROGRAM = 0, PCONFIG_LEAF_INVALID, }; #define PCONFIG ".byte 0x0f, 0x01, 0xc5" /* Defines and structure for MKTME_KEY_PROGRAM of PCONFIG instruction */ /* mktme_key_program::keyid_ctrl COMMAND, bits [7:0] */ #define MKTME_KEYID_SET_KEY_DIRECT 0 #define MKTME_KEYID_SET_KEY_RANDOM 1 #define MKTME_KEYID_CLEAR_KEY 2 #define MKTME_KEYID_NO_ENCRYPT 3 /* mktme_key_program::keyid_ctrl ENC_ALG, bits [23:8] */ #define MKTME_AES_XTS_128 (1 << 8) /* Return codes from the PCONFIG MKTME_KEY_PROGRAM */ #define MKTME_PROG_SUCCESS 0 #define MKTME_INVALID_PROG_CMD 1 #define MKTME_ENTROPY_ERROR 2 #define MKTME_INVALID_KEYID 3 #define MKTME_INVALID_ENC_ALG 4 #define MKTME_DEVICE_BUSY 5 /* Hardware requires the structure to be 256 byte aligned. Otherwise #GP(0). */ struct mktme_key_program { u16 keyid; u32 keyid_ctrl; u8 __rsvd[58]; u8 key_field_1[64]; u8 key_field_2[64]; } __packed __aligned(256); static inline int mktme_key_program(struct mktme_key_program *key_program) { unsigned long rax = MKTME_KEY_PROGRAM; if (!pconfig_target_supported(MKTME_TARGET)) return -ENXIO; asm volatile(PCONFIG : "=a" (rax), "=b" (key_program) : "0" (rax), "1" (key_program) : "memory", "cc"); return rax; } #endif /* _ASM_X86_INTEL_PCONFIG_H */