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-rw-r--r--drivers/char/hvc_xen.c26
-rw-r--r--include/xen/hvc-console.h3
2 files changed, 29 insertions, 0 deletions
diff --git a/drivers/char/hvc_xen.c b/drivers/char/hvc_xen.c
index dd68f8541c2d..e97d9d168325 100644
--- a/drivers/char/hvc_xen.c
+++ b/drivers/char/hvc_xen.c
@@ -157,3 +157,29 @@ struct console xenboot_console = {
.write = xenboot_write_console,
.flags = CON_PRINTBUFFER | CON_BOOT,
};
+
+void xen_raw_console_write(const char *str)
+{
+ int len = strlen(str);
+
+ while(len > 0) {
+ int rc = HYPERVISOR_console_io(CONSOLEIO_write, len, (char *)str);
+ if (rc <= 0)
+ break;
+
+ str += rc;
+ len -= rc;
+ }
+}
+
+void xen_raw_printk(const char *fmt, ...)
+{
+ static char buf[512];
+ va_list ap;
+
+ va_start(ap, fmt);
+ vsnprintf(buf, sizeof(buf), fmt, ap);
+ va_end(ap);
+
+ xen_raw_console_write(buf);
+}
diff --git a/include/xen/hvc-console.h b/include/xen/hvc-console.h
index 21c0ecfd786d..efc3237ab990 100644
--- a/include/xen/hvc-console.h
+++ b/include/xen/hvc-console.h
@@ -3,4 +3,7 @@
extern struct console xenboot_console;
+void xen_raw_console_write(const char *str);
+void xen_raw_printk(const char *fmt, ...);
+
#endif /* XEN_HVC_CONSOLE_H */