diff options
Diffstat (limited to 'drivers/char/hvc_xen.c')
-rw-r--r-- | drivers/char/hvc_xen.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/char/hvc_xen.c b/drivers/char/hvc_xen.c index dd68f85..e97d9d1 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); +} |