Function core::arch::x86_64::_xrstor64

1.27.0 · source ·
pub unsafe fn _xrstor64(mem_addr: *const u8, rs_mask: u64)
Available on x86-64 and target feature xsave only.
Expand description

Performs a full or partial restore of the enabled processor states using the state information stored in memory at mem_addr.

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.

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