Callback function for tracing SYSCALL/SYSENTER (for uc_hook_intr()) @user_data: user data passed to tracing APIs.
Memory-Management Register for instructions IDTR, GDTR, LDTR, TR. Borrow from SegmentCache in qemu/target-i386/cpu.h
Model-Specific Register structure, use this with UC_X86_REG_MSR (as the register ID) in call to uc_reg_write/uc_reg_read() to manipulate MSRs.
By Nguyen Anh Quynh <email@example.com>, 2015