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    SubjectRe: [PATCH 1/3] xen/mce: Add mcelog support for Xen platform (v2)
    On Thu, May 24, 2012 at 04:15:02PM +0000, Liu, Jinsong wrote:
    > The reason is, if we do so, it would be covered by native misc_register(&mce_chrdev_device) later when native kernel init (xen init first and then start native kernel).
    > Under such case, if linux running under xen platform, /dev/mcelog point to vcpu, that's pointless since it cannot get any mcelog from physical cpu (which owned by xen).
    >
    > Yes, we can use another misc device like /dev/xen-mcelog, w/ another device minor like 226, but that's not good for userspace mcelog tools. As far as I know, Novell mcelog use unified /dev/mcelog interface for linux running under either bare metal or xen platform.

    Maybe create a symlink in /dev/mcelog pointing to /dev/xen-mcelog?

    That should solve it.

    > This patch just do redirection at xen code path, and that would not
    > hurt anything to native kernel.

    My concern is that if we remove /dev/mcelog one day, xen people will
    cry.

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    Boris.

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