Please tell me the difference between "call gate" and "Software interrupt（Gate descriptor）".

[mkazu2]

These are safe, low-privilege ways to call kernel functions.

I don't know the difference between the two.

[CarlosAM_INTEL]

Hello, @mkazu2​:

Thank you for contacting Intel Embedded Community.

The information that help you can be found in sections 4.8.2 and 4.8.3, on pages 4-18 through 4-20 of the Intel(R) 64 and IA-32 Architectures Software Developer’s Manual Volume 3A: System Programming Guide, Part 1 document # 253668. This document can be found at:

https://www.intel.com/content/dam/support/us/en/documents/processors/pentium4/sb/25366821.pdf

Also, please review the following websites that have more details that may clarify:

https://software.intel.com/en-us/forums/intel-isa-extensions/topic/802057

https://software.intel.com/en-us/forums/intel-c-compiler/topic/288307

Best regards,

@Mæcenas_INTEL​.