Considerations for it are a leftover from when 32-bit was still
supported.
Signed-off-by: Jan Beulich <[email protected]>
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -306,10 +306,6 @@ static void __init xen_update_mem_tables
BUG();
}
- /* Update kernel mapping, but not for highmem. */
- if (pfn >= PFN_UP(__pa(high_memory - 1)))
- return;
-
if (HYPERVISOR_update_va_mapping((unsigned long)__va(pfn << PAGE_SHIFT),
mfn_pte(mfn, PAGE_KERNEL), 0)) {
WARN(1, "Failed to update kernel mapping for mfn=%ld pfn=%ld\n",
