Re: [PATCH] xen/balloon: Support xend-based toolstack take two

[Boris Ostrovsky]

On 1/16/20 12:00 PM, Juergen Gross wrote:
> Commit 3aa6c19d2f38be ("xen/balloon: Support xend-based toolstack")
> tried to fix a regression with running on rather ancient Xen versions.
> Unfortunately the fix was based on the assumption that xend would
> just use another Xenstore node, but in reality only some downstream
> versions of xend are doing that. The upstream xend does not write
> that Xenstore node at all, so the problem must be fixed in another
> way.
>
> The easiest way to achieve that is to fall back to the behavior before
> commit 5266b8e4445c ("xen: fix booting ballooned down hvm guest")
> in case the static memory maximum can't be read.
>
> Fixes: 3aa6c19d2f38be ("xen/balloon: Support xend-based toolstack")
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
> Cc: <stable@xxxxxxxxxxxxxxx> # 4.13

Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>