diff options
Diffstat (limited to 'arch/powerpc/kernel/firmware.c')
| -rw-r--r-- | arch/powerpc/kernel/firmware.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/firmware.c b/arch/powerpc/kernel/firmware.c index cc4a5e3f51f1..20328f72f9f2 100644 --- a/arch/powerpc/kernel/firmware.c +++ b/arch/powerpc/kernel/firmware.c @@ -11,8 +11,31 @@ #include <linux/export.h> #include <linux/cache.h> +#include <linux/of.h> #include <asm/firmware.h> +#include <asm/kvm_guest.h> +#ifdef CONFIG_PPC64 unsigned long powerpc_firmware_features __read_mostly; EXPORT_SYMBOL_GPL(powerpc_firmware_features); +#endif + +#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST) +DEFINE_STATIC_KEY_FALSE(kvm_guest); +int __init check_kvm_guest(void) +{ + struct device_node *hyper_node; + + hyper_node = of_find_node_by_path("/hypervisor"); + if (!hyper_node) + return 0; + + if (of_device_is_compatible(hyper_node, "linux,kvm")) + static_branch_enable(&kvm_guest); + + of_node_put(hyper_node); + return 0; +} +core_initcall(check_kvm_guest); // before kvm_guest_init() +#endif |