lkml.org 
[lkml]   [2018]   [Jul]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v12 05/13] x86/sgx: architectural structures
Date
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 <jarkko.sakkinen@linux.intel.com>
Co-developed-by: Suresh Siddha <suresh.b.siddha@intel.com>
---
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
\
 
 \ /
  Last update: 2018-07-03 20:23    [W:0.304 / U:3.292 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site