[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] [PATCH v1 2/4] x86/xen: add basic KASAN support for PV kernel





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?

-boris

+               init_top_pgt[i] = ((pgd_t *)xen_start_info->pt_base)[i];
+#endif
+


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel

 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.