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Diffstat (limited to 'arch/x86/xen/enlighten.c')
-rw-r--r--arch/x86/xen/enlighten.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index d4ff5e83621..63b83ceebd1 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -30,6 +30,7 @@
#include <linux/console.h>
#include <linux/pci.h>
#include <linux/gfp.h>
+#include <linux/memblock.h>
#include <xen/xen.h>
#include <xen/interface/xen.h>
@@ -1172,6 +1173,10 @@ asmlinkage void __init xen_start_kernel(void)
pgd = (pgd_t *)xen_start_info->pt_base;
+ if (!xen_initial_domain())
+ __supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD);
+
+ __supported_pte_mask |= _PAGE_IOMAP;
/* Don't do the full vcpu_info placement stuff until we have a
possible map and a non-dummy shared_info. */
per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0];
@@ -1179,6 +1184,8 @@ asmlinkage void __init xen_start_kernel(void)
local_irq_disable();
early_boot_irqs_off();
+ memblock_init();
+
xen_raw_console_write("mapping kernel into physical memory\n");
pgd = xen_setup_kernel_pagetable(pgd, xen_start_info->nr_pages);