Enable a few new cpu features including UMONITOR, UMWAIT, TPAUSE, MOVDIRI and MOVDIR64B.
UMONITOR, UMWAIT, and TPAUSE are a set of user wait instructions. MOVDIRI moves doubleword or quadword from register to memory through direct store. MOVDIR64B moves 64-bytes as direct-store with 64-bytes write atomicity. The bits definition: CPUID.(EAX=7,ECX=0):ECX[bit 05] WAITPKG CPUID.(EAX=7,ECX=0):ECX[bit 27] MOVDIRI CPUID.(EAX=7,ECX=0):ECX[bit 28] MOVDIR64B The release document ref below link: https://software.intel.com/sites/default/files/managed/c5/15/\ architecture-instruction-set-extensions-programming-reference.pdf Jingqi Liu (3): x86/cpu: Enable UMONITOR/UMWAIT/TPAUSE cpu features x86/cpu: Enable MOVDIRI cpu feature x86/cpu: Enable MOVDIR64B cpu feature target/i386/cpu.c | 6 +++--- target/i386/cpu.h | 3 +++ 2 files changed, 6 insertions(+), 3 deletions(-) -- 1.8.3.1