From: Roger Pau Monne <roger....@citrix.com> So that the guest is not able to deplete the memory pool of the shim itself by trying to balloon up.
Signed-off-by: Roger Pau Monné <roger....@citrix.com> --- xen/arch/x86/pv/shim.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/xen/arch/x86/pv/shim.c b/xen/arch/x86/pv/shim.c index c24adacbc7..46f77362a7 100644 --- a/xen/arch/x86/pv/shim.c +++ b/xen/arch/x86/pv/shim.c @@ -195,6 +195,12 @@ void __init pv_shim_setup_dom(struct domain *d, l4_pgentry_t *l4start, console_mfn, vphysmap); consoled_set_ring_addr(page); } + + /* + * Set the max pages to the current number of pages to prevent the + * guest from depleting the shim memory pool. + */ + d->max_pages = d->tot_pages; } static void write_start_info(struct domain *d) -- 2.11.0 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel