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>
Acked-by: Jan Beulich <jbeul...@suse.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 6dc1ee45d7..e3e101a5b1 100644
--- a/xen/arch/x86/pv/shim.c
+++ b/xen/arch/x86/pv/shim.c
@@ -204,6 +204,12 @@ void __init pv_shim_setup_dom(struct domain *d,
l4_pgentry_t *l4start,
(hypercall_fn_t *)pv_shim_grant_table_op,
(hypercall_fn_t *)pv_shim_grant_table_op);
guest = d;
+
+ /*
+ * 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
