Re: [PATCH 2/2] x86/paravirt: Use XOR r32,r32 to clear register in pv_vcpu_is_preempted()

[Jürgen Groß]

On 20.11.25 20:15, Uros Bizjak wrote:

x86_64 zero extends 32bit operations, so for 64bit operands,
XOR r32,r32 is functionally equal to XOR r64,r64, but avoids
a REX prefix byte when legacy registers are used.

Signed-off-by: Uros Bizjak <ubiz...@gmail.com>

Reviewed-by: Juergen Gross <jgr...@suse.com>


Juergen

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