diff options
Diffstat (limited to 'drivers/tty/hvc/hvc_xen.c')
| -rw-r--r-- | drivers/tty/hvc/hvc_xen.c | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c index e61c36cbb86..2dc2831840c 100644 --- a/drivers/tty/hvc/hvc_xen.c +++ b/drivers/tty/hvc/hvc_xen.c @@ -183,7 +183,7 @@ static int dom0_write_console(uint32_t vtermno, const char *str, int len) { int rc = HYPERVISOR_console_io(CONSOLEIO_write, len, (char *)str); if (rc < 0) - return 0; + return rc; return len; } @@ -561,18 +561,7 @@ static int __init xen_hvc_init(void) #endif return r; } - -static void __exit xen_hvc_fini(void) -{ - struct xencons_info *entry, *next; - - if (list_empty(&xenconsoles)) - return; - - list_for_each_entry_safe(entry, next, &xenconsoles, list) { - xen_console_remove(entry); - } -} +device_initcall(xen_hvc_init); static int xen_cons_init(void) { @@ -598,10 +587,6 @@ static int xen_cons_init(void) hvc_instantiate(HVC_COOKIE, 0, ops); return 0; } - - -module_init(xen_hvc_init); -module_exit(xen_hvc_fini); console_initcall(xen_cons_init); #ifdef CONFIG_EARLY_PRINTK @@ -636,12 +621,28 @@ struct console xenboot_console = { .name = "xenboot", .write = xenboot_write_console, .flags = CON_PRINTBUFFER | CON_BOOT | CON_ANYTIME, + .index = -1, }; #endif /* CONFIG_EARLY_PRINTK */ void xen_raw_console_write(const char *str) { - dom0_write_console(0, str, strlen(str)); + ssize_t len = strlen(str); + int rc = 0; + + if (xen_domain()) { + rc = dom0_write_console(0, str, len); +#ifdef CONFIG_X86 + if (rc == -ENOSYS && xen_hvm_domain()) + goto outb_print; + + } else if (xen_cpuid_base()) { + int i; +outb_print: + for (i = 0; i < len; i++) + outb(str[i], 0xe9); +#endif + } } void xen_raw_printk(const char *fmt, ...) |