Mnelson modernize 03

[marknelsonengineer]

Issue #104 (Linux only).

New Features:

• Modularize the source code, separating CPUID from RDMSR code bases.
• Implement RDMSR code that reports SGX information from the BIOS/UEFI.
• Use Linux's Capabilities API to determine if we are running as root. If we are, read from the BIOS.

Bugfixes:

• Remove a debugging option that kept sgx-test running longer than it should.

Current output:

Start test-sgx
CPUID is available
The CPU is Genuine Intel
CPUID is capable of examining SGX capabilities
CPU: Intel(R) Xeon(R) E-2288G CPU @ 3.70GHz
  Stepping 13        Model 14           Family 6
  Processor type 0   Extended model 9   Extended family 0
Safer Mode Extensions (SMX): 0
Extended feature bits (EAX=7, ECX=0): eax: 00000000  ebx: 009c6fbd  ecx: 40000000  edx: 20000400
Supports SGX
SGX Launch Configuration (SGX_LC): 1
SGX Attestation Services (SGX_KEYS): 0
SGX1 leaf instructions (SGX1): 1
SGX2 leaf instructions (SGX2): 0
EINCVIRTCHILD, EDECVIRTCHILD, and ESETCONTEXT (OVERSUB-VMX): 0
ETRACKC, ERDINFO, ELDBC, and ELDUC (OVERSUB-Supervisor): 0
EVERIFYREPORT2: 0
Allow attestation w/ updated microcode (EUPDATESVN): 0
Allow enclave thread to decrement TCS.CSSA (EDECCSSA): 1
Supported Extended features for MISC region of SSA (MISCSELECT) 0x00000000
The maximum supported enclave size in non-64-bit mode is 2^31
The maximum supported enclave size in     64-bit mode is 2^36
Raw ECREATE SECS.ATTRIBUTES[63:0]: 00000000 00000436
    ECREATE SECS.ATTRIBUTES[DEBUG] (Debugger can read/write enclave data w/ EDBGRD/EDBGWR): 1
    ECREATE SECS.ATTRIBUTES[MODE64BIT] (Enclave can run as 64-bit): 1
    ECREATE SECS.ATTRIBUTES[PROVISIONKEY] (Provisioning key available from EGETKEY): 1
    ECREATE SECS.ATTRIBUTES[EINITTOKEN_KEY] (EINIT token key available from EGETKEY): 1
    ECREATE SECS.ATTRIBUTES[CET] (Enable Control-flow Enforcement Technology in enclave): 0
    ECREATE SECS.ATTRIBUTES[KSS] (Key Separation and Sharing Enabled): 0
    ECREATE SECS.ATTRIBUTES[AEXNOTIFY] (Threads may receive AEX notifications): 1
Raw ECREATE SECS.ATTRIBUTES[127:64] (XFRM: Copy of XCR0): 00000000 0000001f
EPC[0]: Protection: ci  Base phys addr: 00000001c0000000  size: 0000000001c00000
Raw IA32_FEATURE_CONTROL: 0000000000060001
    IA32_FEATURE_CONTROL.LOCK_BIT[bit 0]: 1
    IA32_FEATURE_CONTROL.SGX_LAUNCH_CONTROL[bit 17] (Is the SGX LE PubKey writable?): 1
    IA32_FEATURE_CONTROL.SGX_GLOBAL_ENABLE[bit 18]: 1
The SGX Launch Enclave Public Key Hash can be changed
IA32_SGXLEPUBKEYHASH: a6053e051270b7ac 6cfbe8ba8b3b413d c4916d99f2b3735d d4f8c05909f9bb3b
Raw IA32_SGX_SVN_STATUS: 0000000000000000
MSR_SGXOWNEREPOCH not readable
End test-sgx