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Date:   Thu, 26 Oct 2017 10:12:15 -0400
From:   Boris Ostrovsky <>
To:     Juergen Gross <>,,
Subject: Re: [PATCH v2] xen: fix booting ballooned down hvm guest

On 10/26/2017 05:50 AM, Juergen Gross wrote:
> Commit 96edd61dcf44362d3ef0bed1a5361e0ac7886a63 ("xen/balloon: don't
> online new memory initially") introduced a regression when booting a
> HVM domain with memory less than mem-max: instead of ballooning down
> immediately the system would try to use the memory up to mem-max
> resulting in Xen crashing the domain.
> For HVM domains the current size will be reflected in Xenstore node
> memory/static-max instead of memory/target.
> Additionally we have to trigger the ballooning process at once.
> Cc: <> # 4.13
> Fixes: 96edd61dcf44362d3ef0bed1a5361e0ac7886a63 ("xen/balloon: don't
>        online new memory initially")
> Reported-by: Simon Gaiser <>
> Suggested-by: Boris Ostrovsky <>
> Signed-off-by: Juergen Gross <>

Reviewed-by: Boris Ostrovsky <>

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