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SubjectRe: [PATCH 1/3] x86/paravirt: Make read_cr2() CALLEE_SAVE
On 03.07.19 12:27, root wrote:
> The one paravirt read_cr2() implementation (Xen) is actually quite
> trivial and doesn't need to clobber anything other than the return
> register. By making read_cr2() CALLEE_SAVE we avoid all the PUSH/POP
> nonsense and allow more convenient use from assembly.
> Signed-off-by: Peter Zijlstra (Intel) <>

Reviewed-by: Juergen Gross <>


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