diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c index 252114d67d..6b7b72de27 100644 --- a/xen/arch/arm/mm.c +++ b/xen/arch/arm/mm.c @@ -1030,19 +1030,27 @@ static void xen_unmap_table(const lpae_t *table) static int create_xen_table(lpae_t *entry) { - struct page_info *pg; + mfn_t mfn; void *p; lpae_t pte; - pg = alloc_domheap_page(NULL, 0); - if ( pg == NULL ) - return -ENOMEM; + if ( system_state != SYS_STATE_early_boot ) + { + struct page_info *pg = alloc_domheap_page(NULL, 0); - p = xen_map_table(page_to_mfn(pg)); + if ( pg == NULL ) + return -ENOMEM; + + mfn = page_to_mfn(pg); + } + else + mfn = alloc_boot_pages(1, 1); + + p = xen_map_table(mfn); clear_page(p); xen_unmap_table(p); - pte = mfn_to_xen_entry(page_to_mfn(pg), MT_NORMAL); + pte = mfn_to_xen_entry(mfn, MT_NORMAL); pte.pt.table = 1; write_pte(entry, pte);