RE: [Xen-devel] read_cr3()

["Nakajima, Jun" <jun.nakajima@xxxxxxxxx>]

Jan Beulich wrote:
> Is it intentional that read_cr3() does a m2p translation on i386, but
> doesn't on x86-64? 
> 
> Thanks, Jan
> 

It was never used in x86_64 before. Looks like machine_kexec is using it
now, although the code is inactive. I think it'd be better to add m2p
for read_cr3 to avoid confusion. However, x86_64 xenlinux has two of
CR3, one for the kernel, one for user. So it would return the one for
the kernel.

Jun
---
Intel Open Source Technology Center

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