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-rw-r--r--arch/ia64/xen/xencomm.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/ia64/xen/xencomm.c b/arch/ia64/xen/xencomm.c
index 3dc307f..1f5d7ac 100644
--- a/arch/ia64/xen/xencomm.c
+++ b/arch/ia64/xen/xencomm.c
@@ -19,11 +19,22 @@
#include <linux/mm.h>
static unsigned long kernel_virtual_offset;
+static int is_xencomm_initialized;
+
+/* for xen early printk. It uses console io hypercall which uses xencomm.
+ * However early printk may use it before xencomm initialization.
+ */
+int
+xencomm_is_initialized(void)
+{
+ return is_xencomm_initialized;
+}
void
xencomm_initialize(void)
{
kernel_virtual_offset = KERNEL_START - ia64_tpa(KERNEL_START);
+ is_xencomm_initialized = 1;
}
/* Translate virtual address to physical address. */
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