diff options
Diffstat (limited to 'arch/sparc64/prom/misc.c')
| -rw-r--r-- | arch/sparc64/prom/misc.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/sparc64/prom/misc.c b/arch/sparc64/prom/misc.c index 0b4213720d4..f3e0c14e9ee 100644 --- a/arch/sparc64/prom/misc.c +++ b/arch/sparc64/prom/misc.c @@ -15,6 +15,25 @@ #include <asm/oplib.h> #include <asm/system.h> +int prom_service_exists(const char *service_name) +{ + int err = p1275_cmd("test", P1275_ARG(0, P1275_ARG_IN_STRING) | + P1275_INOUT(1, 1), service_name); + + if (err) + return 0; + return 1; +} + +void prom_sun4v_guest_soft_state(void) +{ + const char *svc = "SUNW,soft-state-supported"; + + if (!prom_service_exists(svc)) + return; + p1275_cmd(svc, P1275_INOUT(0, 0)); +} + /* Reset and reboot the machine with the command 'bcommand'. */ void prom_reboot(const char *bcommand) { |