Function creusot_contracts::std::arch::x86_64::_xrstors64
1.27.0 · source · pub unsafe fn _xrstors64(mem_addr: *const u8, rs_mask: u64)Available on x86-64 only.
Expand description
Performs a full or partial restore of the enabled processor states using the
state information stored in memory at mem_addr.
xrstors differs from xrstor in that it can restore state components
corresponding to bits set in the IA32_XSS MSR; xrstors cannot restore
from an xsave area in which the extended region is in the standard form.
State is restored based on bits [62:0] in rs_mask, XCR0, and
mem_addr.HEADER.XSTATE_BV. mem_addr must be aligned on a 64-byte
boundary.