From: Stefano Stabellini <[email protected]> allocate_bank_memory can be called with a tot_size of zero. In that case, don't create an empty memory bank, just return immediately without error. Otherwise a zero-sized memory bank will be added to the domain device tree.
Fixes: f2931b4233ec "xen/arm: introduce allocate_memory" Signed-off-by: Stefano Stabellini <[email protected]> --- xen/arch/arm/domain_build.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c index 9e92b640cd..578ea80e40 100644 --- a/xen/arch/arm/domain_build.c +++ b/xen/arch/arm/domain_build.c @@ -395,6 +395,9 @@ static bool __init allocate_bank_memory(struct domain *d, struct membank *bank; unsigned int max_order = ~0; + if ( tot_size == 0 ) + return true; + bank = &kinfo->mem.bank[kinfo->mem.nr_banks]; bank->start = gfn_to_gaddr(sgfn); bank->size = tot_size; -- 2.25.1
