On 09/01/2020 23:27, Boris Ostrovsky wrote: > > > On 1/8/20 10:20 AM, Sergey Dyasli wrote: >> @@ -1943,6 +1973,15 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn) >> if (i && i < pgd_index(__START_KERNEL_map)) >> init_top_pgt[i] = ((pgd_t *)xen_start_info->pt_base)[i]; >> +#ifdef CONFIG_KASAN >> + /* >> + * Copy KASAN mappings >> + * ffffec0000000000 - fffffbffffffffff (=44 bits) kasan shadow memory (16TB) >> + */ >> + for (i = 0xec0 >> 3; i < 0xfc0 >> 3; i++) > > Are you referring here to KASAN_SHADOW_START and KASAN_SHADOW_END? If so, can you use them instead? Indeed, the following macros make the code neater: #ifdef CONFIG_KASAN /* Copy KASAN mappings */ for (i = pgd_index(KASAN_SHADOW_START); i < pgd_index(KASAN_SHADOW_END); i++) init_top_pgt[i] = ((pgd_t *)xen_start_info->pt_base)[i]; #endif /* ifdef CONFIG_KASAN */ -- Thanks, Sergey
