Re: [Xen-devel] [PATCH] xen/x86: use 64 bit mask when masking away mfn bits

[George Dunlap <george.dunlap@xxxxxxxxxx>]

On 24/03/17 08:50, Juergen Gross wrote:
> When using _PAGE_PSE_PAT as base for a negated bit mask make sure it is
> propagated to 64 bits when applied to a 64 bit value.
> 
> There seems to be only one place where this is a problem, so fix this
> by casting _PAGE_PSE_PAT to 64 bits there.
> 
> Not doing so will probably lead to problems on hosts with more than
> 16 TB of memory.
> 
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Acked-by: George Dunlap <george.dunlap@xxxxxxxxxx>


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