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    SubjectRe: [Xen-devel] [RFC PATCH] Boot PV guests with more than 128GB (v1) for 3.7
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    On Fri, 2012-07-27 at 08:34 +0100, Jan Beulich wrote:
    > >>> On 26.07.12 at 22:47, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote:
    > > 2). Allocate a new array, copy the existing P2M into it,
    > > revector the P2M tree to use that, and return the old
    > > P2M to the memory allocate. This has the advantage that
    > > it sets the stage for using XEN_ELF_NOTE_INIT_P2M
    > > feature. That feature allows us to set the exact virtual
    > > address space we want for the P2M - and allows us to
    > > boot as initial domain on large machines.
    >
    > And I would hope that the tools would get updated to recognize
    > this note too, so that huge DomU-s would become possible as
    > well.

    Does this help us with >160GB 32 bit PV guests too? I'm guessing not
    since the real limitation there is the relatively small amount of kernel
    address space.



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