Re: [Xen-devel] [PATCH] Memory pool for paravirtual guest in memory over 128G system

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 30/11/2009 07:43, "James (song wei)" <jsong@xxxxxxxxxx> wrote:

> the main idea of this patch is:
> 1) The admin sets aside some memory below 128G for 32-bit paravirtual domain
> creation (via dom0_mem=-<value> in kernel comand line).
> 2) The admin also explicitly states to the tools (i..e xend) how much memory
> is supposed to be left untouched by 64-bit domains
> 3) If a 32-bit pv DomU gets created, no ballooning ought to be necessary
> (since if it is, no guarantee can be made about the address range of the
> memory ballooned out), and memory gets allocated from the reserved range.
> 4) Upon 64-bit (or 32-bit HVM or HVM) DomU creation, the tools determine the
> amount of memory to be ballooned out of Dom0 by adding the amount needed for
> the new guest and the amount still in the reserved pool (and then of course
> subtracting the total amount of memory the hypervisor has available for
> guest use).
> 
> Signed-off-by: james song (wei)<jsong@xxxxxxxxxx>

The patch is corrupted (line wrapped). You need to re-send as an attachment.
Please include the changeset comment and sign-off again.

 -- Keir



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