I have a gigabyte b365m motherboard with the newest bios F3a and core i5-9600k. I have set intel sgx to "enabled" in bios but in ubuntu the isgx driver keep saying intel_sgx: CPU does not support SGX1 instructions in dmesg outputs. And i use the intel's sgx software enable application https://github.com/intel/sgx-software-enable to get the status of SGX. While it says
Intel SGX is explicitly disabled, and your BIOS does not
support the "software enable" option. Check your BIOS for an
explicit option to enable Intel SGX.
That's so weird!
Then i set the SGX to "software controlled" in bios and in operating system the isgx driver says
intel_sgx: SGX is not enabled . I use the SGX software enable application to enable SGX and it says succeeed. But when i reboot my computer and come into the operating system, the weird thing happens again: isgx says intel_sgx: CPU does not support SGX1 instructions. But the output of SGX enable application becomes:
The software enable has been performed on this system and
Intel SGX will be enabled after the system is rebooted.
Then i rebooted again but things didn't change. isgx driver still says:
intel_sgx: CPU does not support SGX1 instructions
and the outputs of the SGX application is still
The software enable has been performed on this system and
Intel SGX will be enabled after the system is rebooted.
Why did things come to this? The website https://ark.intel.com/content/www/us/en/ark.html shows obviously that 9600k supports SGX. Can this be an incompatibility problem between ubuntu and bios?
output of cpuid|grep SGX:
SGX: Software Guard Extensions supported = true
SGX_LC: SGX launch config supported = true
Software Guard Extensions (SGX) capability (0x12/0):
SGX1 supported = false
SGX2 supported = false
SGX ENCLV E*VIRTCHILD, ESETCONTEXT = false
SGX ENCLS ETRACKC, ERDINFO, ELDBC, ELDUC = false
SGX: Software Guard Extensions supported = true
SGX_LC: SGX launch config supported = true
Software Guard Extensions (SGX) capability (0x12/0):
SGX1 supported = false
SGX2 supported = false
SGX ENCLV E*VIRTCHILD, ESETCONTEXT = false
SGX ENCLS ETRACKC, ERDINFO, ELDBC, ELDUC = false
SGX: Software Guard Extensions supported = true
SGX_LC: SGX launch config supported = true
Software Guard Extensions (SGX) capability (0x12/0):
SGX1 supported = false
SGX2 supported = false
SGX ENCLV E*VIRTCHILD, ESETCONTEXT = false
SGX ENCLS ETRACKC, ERDINFO, ELDBC, ELDUC = false
SGX: Software Guard Extensions supported = true
SGX_LC: SGX launch config supported = true
Software Guard Extensions (SGX) capability (0x12/0):
SGX1 supported = false
SGX2 supported = false
SGX ENCLV E*VIRTCHILD, ESETCONTEXT = false
SGX ENCLS ETRACKC, ERDINFO, ELDBC, ELDUC = false
SGX: Software Guard Extensions supported = true
SGX_LC: SGX launch config supported = true
Software Guard Extensions (SGX) capability (0x12/0):
SGX1 supported = false
SGX2 supported = false
SGX ENCLV E*VIRTCHILD, ESETCONTEXT = false
SGX ENCLS ETRACKC, ERDINFO, ELDBC, ELDUC = false
SGX: Software Guard Extensions supported = true
SGX_LC: SGX launch config supported = true
Software Guard Extensions (SGX) capability (0x12/0):
SGX1 supported = false
SGX2 supported = false
SGX ENCLV E*VIRTCHILD, ESETCONTEXT = false
SGX ENCLS ETRACKC, ERDINFO, ELDBC, ELDUC = false
output of dmidecode -t bios:
Getting SMBIOS data from sysfs.
SMBIOS 3.1.1 present.
Handle 0x0000, DMI type 0, 26 bytes
BIOS Information
Vendor: American Megatrends Inc.
Version: F3a
Release Date: 11/28/2019
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 16 MB
Characteristics:
PCI is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
BIOS ROM is socketed
EDD is supported
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 kB floppy services are supported (int 13h)
3.5"/2.88 MB floppy services are supported (int 13h)
Print screen service is supported (int 5h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 5.12
Handle 0x0043, DMI type 13, 22 bytes
BIOS Language Information
Language Description Format: Long
Installable Languages: 15
en|US|iso8859-1
zh|TW|unicode
zh|CN|unicode
ru|RU|iso8859-5
de|DE|iso8859-1
ja|JP|unicode
ko|KR|unicode
es|ES|iso8859-1
fr|FR|iso8859-1
it|IT|iso8859-1
pt|PT|iso8859-1
vi|VI|iso8859-1
id|ID|iso8859-1
tr|TR|iso8859-1
pl|PL|iso8859-1
Currently Installed Language: en|US|iso8859-1
Any help is appreciated.Thanks! :-)
