Function no_std_compat::arch::x86_64::_xsave
1.27.0 · source · pub unsafe fn _xsave(mem_addr: *mut u8, save_mask: u64)Available on x86-64 only.
Expand description
Performs a full or partial save of the enabled processor states to memory at
mem_addr.
State is saved based on bits [62:0] in save_mask and XCR0.
mem_addr must be aligned on a 64-byte boundary.
The format of the XSAVE area is detailed in Section 13.4, “XSAVE Area,” of Intel® 64 and IA-32 Architectures Software Developer’s Manual, Volume 1.