X86_OSXSAVE_ID

#define X86_OSXSAVE_ID   0x0000000000000800llu

A bit mask used to request support of the Intel XSAVE instructions from the CPU and the OS.

The mask is mapped to the following Intel x86 and x86-64 CPUID flags: CPUID.01H:ECX.XSAVE[bit 26] and CPUID.01H:ECX.OSXSAVE[bit 27].

See also

x86_cpuid_test_feature;
get_x86_cpu_info.