diff options
Diffstat (limited to 'arch/arm/xen/enlighten.c')
| -rw-r--r-- | arch/arm/xen/enlighten.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c index 1e632430570b..0e15f011f9c8 100644 --- a/arch/arm/xen/enlighten.c +++ b/arch/arm/xen/enlighten.c @@ -181,8 +181,7 @@ static void xen_restart(enum reboot_mode reboot_mode, const char *cmd) struct sched_shutdown r = { .reason = SHUTDOWN_reboot }; int rc; rc = HYPERVISOR_sched_op(SCHEDOP_shutdown, &r); - if (rc) - BUG(); + BUG_ON(rc); } static void xen_power_off(void) @@ -190,8 +189,7 @@ static void xen_power_off(void) struct sched_shutdown r = { .reason = SHUTDOWN_poweroff }; int rc; rc = HYPERVISOR_sched_op(SCHEDOP_shutdown, &r); - if (rc) - BUG(); + BUG_ON(rc); } static int xen_cpu_notification(struct notifier_block *self, @@ -262,6 +260,12 @@ static int __init xen_guest_init(void) xen_domain_type = XEN_HVM_DOMAIN; xen_setup_features(); + + if (!xen_feature(XENFEAT_grant_map_identity)) { + pr_warn("Please upgrade your Xen.\n" + "If your platform has any non-coherent DMA devices, they won't work properly.\n"); + } + if (xen_feature(XENFEAT_dom0)) xen_start_info->flags |= SIF_INITDOMAIN|SIF_PRIVILEGED; else |